metrics: how to manage variability between the admin pods?
The metrics include one entry per uvicorn worker of the `admin` service, but they give different values.

<details>
<summary>Example of a response to https://datasets-server.huggingface.co/admin/metrics</summary>
<pre>
# HELP starlette_requests_in_progress Multiprocess metric
# TYPE starlette_requests_in_progress gauge
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="16"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="16"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="12"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="12"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="15"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="15"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="13"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="13"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="11"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="11"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="18"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="18"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="14"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="14"} 1.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="10"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="10"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="17"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="17"} 0.0
# HELP queue_jobs_total Multiprocess metric
# TYPE queue_jobs_total gauge
queue_jobs_total{pid="16",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="16",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="16",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="16",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="16",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="16",queue="/rows",status="waiting"} 372.0
queue_jobs_total{pid="16",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="16",queue="/rows",status="success"} 300541.0
queue_jobs_total{pid="16",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="16",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="16",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="16",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="16",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="16",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="16",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="16",queue="/first-rows",status="waiting"} 11406.0
queue_jobs_total{pid="16",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="16",queue="/first-rows",status="success"} 142201.0
queue_jobs_total{pid="16",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="16",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="12",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="12",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="12",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="12",queue="/splits",status="error"} 41638.0
queue_jobs_total{pid="12",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="12",queue="/rows",status="waiting"} 424.0
queue_jobs_total{pid="12",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="12",queue="/rows",status="success"} 300489.0
queue_jobs_total{pid="12",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="12",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="12",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="12",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="12",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="12",queue="/splits-next",status="error"} 25610.0
queue_jobs_total{pid="12",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="12",queue="/first-rows",status="waiting"} 11470.0
queue_jobs_total{pid="12",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="12",queue="/first-rows",status="success"} 142144.0
queue_jobs_total{pid="12",queue="/first-rows",status="error"} 30090.0
queue_jobs_total{pid="12",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="15",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="15",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="15",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="15",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="15",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="15",queue="/rows",status="waiting"} 380.0
queue_jobs_total{pid="15",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="15",queue="/rows",status="success"} 300533.0
queue_jobs_total{pid="15",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="15",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="15",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="15",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="15",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="15",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="15",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="15",queue="/first-rows",status="waiting"} 11411.0
queue_jobs_total{pid="15",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="15",queue="/first-rows",status="success"} 142196.0
queue_jobs_total{pid="15",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="15",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="13",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="13",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="13",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="13",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="13",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="13",queue="/rows",status="waiting"} 371.0
queue_jobs_total{pid="13",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="13",queue="/rows",status="success"} 300542.0
queue_jobs_total{pid="13",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="13",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="13",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="13",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="13",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="13",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="13",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="13",queue="/first-rows",status="waiting"} 11405.0
queue_jobs_total{pid="13",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="13",queue="/first-rows",status="success"} 142201.0
queue_jobs_total{pid="13",queue="/first-rows",status="error"} 30098.0
queue_jobs_total{pid="13",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="11",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="11",queue="/splits",status="started"} 4.0
queue_jobs_total{pid="11",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="11",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="11",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="11",queue="/rows",status="waiting"} 381.0
queue_jobs_total{pid="11",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="11",queue="/rows",status="success"} 300532.0
queue_jobs_total{pid="11",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="11",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="11",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="11",queue="/splits-next",status="started"} 3.0
queue_jobs_total{pid="11",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="11",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="11",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="11",queue="/first-rows",status="waiting"} 11411.0
queue_jobs_total{pid="11",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="11",queue="/first-rows",status="success"} 142196.0
queue_jobs_total{pid="11",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="11",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="18",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="18",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="18",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="18",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="18",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="18",queue="/rows",status="waiting"} 375.0
queue_jobs_total{pid="18",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="18",queue="/rows",status="success"} 300538.0
queue_jobs_total{pid="18",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="18",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="18",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="18",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="18",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="18",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="18",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="18",queue="/first-rows",status="waiting"} 11408.0
queue_jobs_total{pid="18",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="18",queue="/first-rows",status="success"} 142199.0
queue_jobs_total{pid="18",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="18",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="14",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="14",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="14",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="14",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="14",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="14",queue="/rows",status="waiting"} 370.0
queue_jobs_total{pid="14",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="14",queue="/rows",status="success"} 300543.0
queue_jobs_total{pid="14",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="14",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="14",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="14",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="14",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="14",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="14",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="14",queue="/first-rows",status="waiting"} 11404.0
queue_jobs_total{pid="14",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="14",queue="/first-rows",status="success"} 142202.0
queue_jobs_total{pid="14",queue="/first-rows",status="error"} 30098.0
queue_jobs_total{pid="14",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="10",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="10",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="10",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="10",queue="/splits",status="error"} 41636.0
queue_jobs_total{pid="10",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="10",queue="/rows",status="waiting"} 459.0
queue_jobs_total{pid="10",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="10",queue="/rows",status="success"} 300454.0
queue_jobs_total{pid="10",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="10",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="10",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="10",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="10",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="10",queue="/splits-next",status="error"} 25608.0
queue_jobs_total{pid="10",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="10",queue="/first-rows",status="waiting"} 11513.0
queue_jobs_total{pid="10",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="10",queue="/first-rows",status="success"} 142108.0
queue_jobs_total{pid="10",queue="/first-rows",status="error"} 30083.0
queue_jobs_total{pid="10",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="17",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="17",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="17",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="17",queue="/splits",status="error"} 41639.0
queue_jobs_total{pid="17",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="17",queue="/rows",status="waiting"} 397.0
queue_jobs_total{pid="17",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="17",queue="/rows",status="success"} 300516.0
queue_jobs_total{pid="17",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="17",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="17",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="17",queue="/splits-next",status="started"} 3.0
queue_jobs_total{pid="17",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="17",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="17",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="17",queue="/first-rows",status="waiting"} 11434.0
queue_jobs_total{pid="17",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="17",queue="/first-rows",status="success"} 142176.0
queue_jobs_total{pid="17",queue="/first-rows",status="error"} 30094.0
queue_jobs_total{pid="17",queue="/first-rows",status="cancelled"} 573.0
# HELP cache_entries_total Multiprocess metric
# TYPE cache_entries_total gauge
cache_entries_total{cache="/splits",pid="16",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="16",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="16",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="16",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="16",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="16",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="16",status="stale"} 382.0
cache_entries_total{cache="/rows",pid="16",status="valid"} 32970.0
cache_entries_total{cache="/splits",pid="12",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="12",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="12",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="12",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="12",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="12",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="12",status="stale"} 434.0
cache_entries_total{cache="/rows",pid="12",status="valid"} 32918.0
cache_entries_total{cache="/splits",pid="15",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="15",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="15",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="15",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="15",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="15",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="15",status="stale"} 390.0
cache_entries_total{cache="/rows",pid="15",status="valid"} 32962.0
cache_entries_total{cache="/splits",pid="13",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="13",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="13",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="13",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="13",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="13",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="13",status="stale"} 381.0
cache_entries_total{cache="/rows",pid="13",status="valid"} 32971.0
cache_entries_total{cache="/splits",pid="11",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="11",status="error"} 2211.0
cache_entries_total{cache="/splits",pid="11",status="stale"} 6.0
cache_entries_total{cache="/splits",pid="11",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="11",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="11",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="11",status="stale"} 391.0
cache_entries_total{cache="/rows",pid="11",status="valid"} 32961.0
cache_entries_total{cache="/splits",pid="18",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="18",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="18",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="18",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="18",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="18",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="18",status="stale"} 385.0
cache_entries_total{cache="/rows",pid="18",status="valid"} 32967.0
cache_entries_total{cache="/splits",pid="14",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="14",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="14",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="14",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="14",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="14",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="14",status="stale"} 380.0
cache_entries_total{cache="/rows",pid="14",status="valid"} 32972.0
cache_entries_total{cache="/splits",pid="10",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="10",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="10",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="10",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="10",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="10",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="10",status="stale"} 469.0
cache_entries_total{cache="/rows",pid="10",status="valid"} 32883.0
cache_entries_total{cache="/splits",pid="17",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="17",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="17",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="17",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="17",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="17",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="17",status="stale"} 407.0
cache_entries_total{cache="/rows",pid="17",status="valid"} 32945.0
# HELP responses_in_cache_total Multiprocess metric
# TYPE responses_in_cache_total gauge
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="16"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="16"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="16"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="16"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="16"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="16"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="16"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="16"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="16"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="16"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="16"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="12"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="12"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="12"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="12"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="12"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="12"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="12"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="12"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="12"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="12"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="12"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="15"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="15"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="15"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="15"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="15"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="15"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="15"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="15"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="15"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="15"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="15"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="13"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="13"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="13"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="13"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="13"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="13"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="13"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="13"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="13"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="13"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="13"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="11"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="11"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="11"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="11"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="11"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="11"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="11"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="11"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="11"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="11"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="11"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="18"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="18"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="18"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="18"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="18"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="18"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="18"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="18"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="18"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="18"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="18"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="14"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="14"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="14"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="14"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="14"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="14"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="14"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="14"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="14"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="14"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="14"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="10"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="10"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="10"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="10"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="10"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="10"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="10"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="10"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="10"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="10"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="10"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="17"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="17"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="17"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="17"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="17"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="17"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="17"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="17"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="17"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="17"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="17"} 1.0
# HELP starlette_requests_total Multiprocess metric
# TYPE starlette_requests_total counter
starlette_requests_total{method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_total{method="GET",path_template="/metrics"} 5087.0
# HELP starlette_responses_total Multiprocess metric
# TYPE starlette_responses_total counter
starlette_responses_total{method="GET",path_template="/healthcheck",status_code="200"} 612321.0
starlette_responses_total{method="GET",path_template="/metrics",status_code="200"} 5086.0
# HELP starlette_requests_processing_time_seconds Multiprocess metric
# TYPE starlette_requests_processing_time_seconds histogram
starlette_requests_processing_time_seconds_sum{method="GET",path_template="/healthcheck"} 568.1808635060779
starlette_requests_processing_time_seconds_sum{method="GET",path_template="/metrics"} 2656.602780014923
starlette_requests_processing_time_seconds_bucket{le="0.005",method="GET",path_template="/healthcheck"} 607291.0
starlette_requests_processing_time_seconds_bucket{le="0.01",method="GET",path_template="/healthcheck"} 611417.0
starlette_requests_processing_time_seconds_bucket{le="0.025",method="GET",path_template="/healthcheck"} 612003.0
starlette_requests_processing_time_seconds_bucket{le="0.05",method="GET",path_template="/healthcheck"} 612293.0
starlette_requests_processing_time_seconds_bucket{le="0.075",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.1",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.25",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.75",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="1.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="2.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="5.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="7.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="10.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="+Inf",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_count{method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.005",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.01",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.025",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.05",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.075",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.1",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.25",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.5",method="GET",path_template="/metrics"} 1533.0
starlette_requests_processing_time_seconds_bucket{le="0.75",method="GET",path_template="/metrics"} 5084.0
starlette_requests_processing_time_seconds_bucket{le="1.0",method="GET",path_template="/metrics"} 5085.0
starlette_requests_processing_time_seconds_bucket{le="2.5",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="5.0",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="7.5",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="10.0",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="+Inf",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_count{method="GET",path_template="/metrics"} 5086.0
</pre>
</details>

For example, here is the number of waiting jobs for the /first-rows endpoint, as reported by the uvicorn workers: the value varies from 11404 to 11513.

![chart](https://user-images.githubusercontent.com/1676121/186755033-669d4e8f-c3f9-43fd-aca5-5e8835f66a36.png)

(see https://observablehq.com/@huggingface/variability-in-datasets-server-metrics)

In Grafana (https://grafana.huggingface.tech/d/SaHl2KX7z/datasets-server-admin-cache-and-queue?orgId=1&from=now-24h&to=now&refresh=30s), I use the median (`quantile(0.5, ...)`) to select a value, but it does not feel right.

Related to https://github.com/huggingface/datasets-server/pull/497
metrics: how to manage variability between the admin pods?: The metrics include one entry per uvicorn worker of the `admin` service, but they give different values.

<details>
<summary>Example of a response to https://datasets-server.huggingface.co/admin/metrics</summary>
<pre>
# HELP starlette_requests_in_progress Multiprocess metric
# TYPE starlette_requests_in_progress gauge
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="16"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="16"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="12"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="12"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="15"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="15"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="13"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="13"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="11"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="11"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="18"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="18"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="14"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="14"} 1.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="10"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="10"} 0.0
starlette_requests_in_progress{method="GET",path_template="/healthcheck",pid="17"} 0.0
starlette_requests_in_progress{method="GET",path_template="/metrics",pid="17"} 0.0
# HELP queue_jobs_total Multiprocess metric
# TYPE queue_jobs_total gauge
queue_jobs_total{pid="16",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="16",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="16",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="16",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="16",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="16",queue="/rows",status="waiting"} 372.0
queue_jobs_total{pid="16",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="16",queue="/rows",status="success"} 300541.0
queue_jobs_total{pid="16",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="16",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="16",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="16",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="16",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="16",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="16",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="16",queue="/first-rows",status="waiting"} 11406.0
queue_jobs_total{pid="16",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="16",queue="/first-rows",status="success"} 142201.0
queue_jobs_total{pid="16",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="16",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="12",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="12",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="12",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="12",queue="/splits",status="error"} 41638.0
queue_jobs_total{pid="12",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="12",queue="/rows",status="waiting"} 424.0
queue_jobs_total{pid="12",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="12",queue="/rows",status="success"} 300489.0
queue_jobs_total{pid="12",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="12",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="12",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="12",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="12",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="12",queue="/splits-next",status="error"} 25610.0
queue_jobs_total{pid="12",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="12",queue="/first-rows",status="waiting"} 11470.0
queue_jobs_total{pid="12",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="12",queue="/first-rows",status="success"} 142144.0
queue_jobs_total{pid="12",queue="/first-rows",status="error"} 30090.0
queue_jobs_total{pid="12",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="15",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="15",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="15",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="15",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="15",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="15",queue="/rows",status="waiting"} 380.0
queue_jobs_total{pid="15",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="15",queue="/rows",status="success"} 300533.0
queue_jobs_total{pid="15",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="15",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="15",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="15",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="15",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="15",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="15",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="15",queue="/first-rows",status="waiting"} 11411.0
queue_jobs_total{pid="15",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="15",queue="/first-rows",status="success"} 142196.0
queue_jobs_total{pid="15",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="15",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="13",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="13",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="13",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="13",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="13",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="13",queue="/rows",status="waiting"} 371.0
queue_jobs_total{pid="13",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="13",queue="/rows",status="success"} 300542.0
queue_jobs_total{pid="13",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="13",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="13",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="13",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="13",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="13",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="13",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="13",queue="/first-rows",status="waiting"} 11405.0
queue_jobs_total{pid="13",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="13",queue="/first-rows",status="success"} 142201.0
queue_jobs_total{pid="13",queue="/first-rows",status="error"} 30098.0
queue_jobs_total{pid="13",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="11",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="11",queue="/splits",status="started"} 4.0
queue_jobs_total{pid="11",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="11",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="11",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="11",queue="/rows",status="waiting"} 381.0
queue_jobs_total{pid="11",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="11",queue="/rows",status="success"} 300532.0
queue_jobs_total{pid="11",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="11",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="11",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="11",queue="/splits-next",status="started"} 3.0
queue_jobs_total{pid="11",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="11",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="11",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="11",queue="/first-rows",status="waiting"} 11411.0
queue_jobs_total{pid="11",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="11",queue="/first-rows",status="success"} 142196.0
queue_jobs_total{pid="11",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="11",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="18",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="18",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="18",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="18",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="18",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="18",queue="/rows",status="waiting"} 375.0
queue_jobs_total{pid="18",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="18",queue="/rows",status="success"} 300538.0
queue_jobs_total{pid="18",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="18",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="18",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="18",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="18",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="18",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="18",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="18",queue="/first-rows",status="waiting"} 11408.0
queue_jobs_total{pid="18",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="18",queue="/first-rows",status="success"} 142199.0
queue_jobs_total{pid="18",queue="/first-rows",status="error"} 30097.0
queue_jobs_total{pid="18",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="14",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="14",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="14",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="14",queue="/splits",status="error"} 41640.0
queue_jobs_total{pid="14",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="14",queue="/rows",status="waiting"} 370.0
queue_jobs_total{pid="14",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="14",queue="/rows",status="success"} 300543.0
queue_jobs_total{pid="14",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="14",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="14",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="14",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="14",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="14",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="14",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="14",queue="/first-rows",status="waiting"} 11404.0
queue_jobs_total{pid="14",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="14",queue="/first-rows",status="success"} 142202.0
queue_jobs_total{pid="14",queue="/first-rows",status="error"} 30098.0
queue_jobs_total{pid="14",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="10",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="10",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="10",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="10",queue="/splits",status="error"} 41636.0
queue_jobs_total{pid="10",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="10",queue="/rows",status="waiting"} 459.0
queue_jobs_total{pid="10",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="10",queue="/rows",status="success"} 300454.0
queue_jobs_total{pid="10",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="10",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="10",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="10",queue="/splits-next",status="started"} 4.0
queue_jobs_total{pid="10",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="10",queue="/splits-next",status="error"} 25608.0
queue_jobs_total{pid="10",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="10",queue="/first-rows",status="waiting"} 11513.0
queue_jobs_total{pid="10",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="10",queue="/first-rows",status="success"} 142108.0
queue_jobs_total{pid="10",queue="/first-rows",status="error"} 30083.0
queue_jobs_total{pid="10",queue="/first-rows",status="cancelled"} 573.0
queue_jobs_total{pid="17",queue="/splits",status="waiting"} 0.0
queue_jobs_total{pid="17",queue="/splits",status="started"} 5.0
queue_jobs_total{pid="17",queue="/splits",status="success"} 71154.0
queue_jobs_total{pid="17",queue="/splits",status="error"} 41639.0
queue_jobs_total{pid="17",queue="/splits",status="cancelled"} 133.0
queue_jobs_total{pid="17",queue="/rows",status="waiting"} 397.0
queue_jobs_total{pid="17",queue="/rows",status="started"} 21.0
queue_jobs_total{pid="17",queue="/rows",status="success"} 300516.0
queue_jobs_total{pid="17",queue="/rows",status="error"} 121306.0
queue_jobs_total{pid="17",queue="/rows",status="cancelled"} 1500.0
queue_jobs_total{pid="17",queue="/splits-next",status="waiting"} 0.0
queue_jobs_total{pid="17",queue="/splits-next",status="started"} 3.0
queue_jobs_total{pid="17",queue="/splits-next",status="success"} 30896.0
queue_jobs_total{pid="17",queue="/splits-next",status="error"} 25611.0
queue_jobs_total{pid="17",queue="/splits-next",status="cancelled"} 92.0
queue_jobs_total{pid="17",queue="/first-rows",status="waiting"} 11434.0
queue_jobs_total{pid="17",queue="/first-rows",status="started"} 52.0
queue_jobs_total{pid="17",queue="/first-rows",status="success"} 142176.0
queue_jobs_total{pid="17",queue="/first-rows",status="error"} 30094.0
queue_jobs_total{pid="17",queue="/first-rows",status="cancelled"} 573.0
# HELP cache_entries_total Multiprocess metric
# TYPE cache_entries_total gauge
cache_entries_total{cache="/splits",pid="16",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="16",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="16",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="16",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="16",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="16",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="16",status="stale"} 382.0
cache_entries_total{cache="/rows",pid="16",status="valid"} 32970.0
cache_entries_total{cache="/splits",pid="12",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="12",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="12",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="12",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="12",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="12",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="12",status="stale"} 434.0
cache_entries_total{cache="/rows",pid="12",status="valid"} 32918.0
cache_entries_total{cache="/splits",pid="15",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="15",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="15",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="15",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="15",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="15",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="15",status="stale"} 390.0
cache_entries_total{cache="/rows",pid="15",status="valid"} 32962.0
cache_entries_total{cache="/splits",pid="13",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="13",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="13",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="13",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="13",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="13",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="13",status="stale"} 381.0
cache_entries_total{cache="/rows",pid="13",status="valid"} 32971.0
cache_entries_total{cache="/splits",pid="11",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="11",status="error"} 2211.0
cache_entries_total{cache="/splits",pid="11",status="stale"} 6.0
cache_entries_total{cache="/splits",pid="11",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="11",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="11",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="11",status="stale"} 391.0
cache_entries_total{cache="/rows",pid="11",status="valid"} 32961.0
cache_entries_total{cache="/splits",pid="18",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="18",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="18",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="18",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="18",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="18",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="18",status="stale"} 385.0
cache_entries_total{cache="/rows",pid="18",status="valid"} 32967.0
cache_entries_total{cache="/splits",pid="14",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="14",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="14",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="14",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="14",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="14",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="14",status="stale"} 380.0
cache_entries_total{cache="/rows",pid="14",status="valid"} 32972.0
cache_entries_total{cache="/splits",pid="10",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="10",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="10",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="10",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="10",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="10",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="10",status="stale"} 469.0
cache_entries_total{cache="/rows",pid="10",status="valid"} 32883.0
cache_entries_total{cache="/splits",pid="17",status="empty"} 0.0
cache_entries_total{cache="/splits",pid="17",status="error"} 2210.0
cache_entries_total{cache="/splits",pid="17",status="stale"} 7.0
cache_entries_total{cache="/splits",pid="17",status="valid"} 7062.0
cache_entries_total{cache="/rows",pid="17",status="empty"} 11.0
cache_entries_total{cache="/rows",pid="17",status="error"} 8234.0
cache_entries_total{cache="/rows",pid="17",status="stale"} 407.0
cache_entries_total{cache="/rows",pid="17",status="valid"} 32945.0
# HELP responses_in_cache_total Multiprocess metric
# TYPE responses_in_cache_total gauge
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="16"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="16"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="16"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="16"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="16"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="16"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="16"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="16"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="16"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="16"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="16"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="12"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="12"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="12"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="12"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="12"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="12"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="12"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="12"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="12"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="12"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="12"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="15"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="15"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="15"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="15"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="15"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="15"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="15"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="15"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="15"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="15"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="15"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="13"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="13"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="13"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="13"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="13"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="13"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="13"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="13"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="13"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="13"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="13"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="11"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="11"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="11"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="11"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="11"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="11"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="11"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="11"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="11"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="11"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="11"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="18"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="18"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="18"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="18"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="18"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="18"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="18"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="18"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="18"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="18"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="18"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="14"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="14"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="14"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="14"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="14"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="14"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="14"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="14"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="14"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="14"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="14"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="10"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="10"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="10"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="10"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="10"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="10"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="10"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="10"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="10"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="10"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="10"} 1.0
responses_in_cache_total{error_code="None",http_status="200",path="/splits",pid="17"} 6882.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/splits",pid="17"} 2138.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/splits",pid="17"} 19.0
responses_in_cache_total{error_code="None",http_status="200",path="/first-rows",pid="17"} 33579.0
responses_in_cache_total{error_code="FeaturesError",http_status="500",path="/first-rows",pid="17"} 420.0
responses_in_cache_total{error_code="InfoError",http_status="500",path="/first-rows",pid="17"} 3.0
responses_in_cache_total{error_code="NormalRowsError",http_status="500",path="/first-rows",pid="17"} 661.0
responses_in_cache_total{error_code="RowsPostProcessingError",http_status="500",path="/first-rows",pid="17"} 7.0
responses_in_cache_total{error_code="SplitsNamesError",http_status="500",path="/first-rows",pid="17"} 94.0
responses_in_cache_total{error_code="StreamingRowsError",http_status="500",path="/first-rows",pid="17"} 4663.0
responses_in_cache_total{error_code="UnexpectedError",http_status="500",path="/first-rows",pid="17"} 1.0
# HELP starlette_requests_total Multiprocess metric
# TYPE starlette_requests_total counter
starlette_requests_total{method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_total{method="GET",path_template="/metrics"} 5087.0
# HELP starlette_responses_total Multiprocess metric
# TYPE starlette_responses_total counter
starlette_responses_total{method="GET",path_template="/healthcheck",status_code="200"} 612321.0
starlette_responses_total{method="GET",path_template="/metrics",status_code="200"} 5086.0
# HELP starlette_requests_processing_time_seconds Multiprocess metric
# TYPE starlette_requests_processing_time_seconds histogram
starlette_requests_processing_time_seconds_sum{method="GET",path_template="/healthcheck"} 568.1808635060779
starlette_requests_processing_time_seconds_sum{method="GET",path_template="/metrics"} 2656.602780014923
starlette_requests_processing_time_seconds_bucket{le="0.005",method="GET",path_template="/healthcheck"} 607291.0
starlette_requests_processing_time_seconds_bucket{le="0.01",method="GET",path_template="/healthcheck"} 611417.0
starlette_requests_processing_time_seconds_bucket{le="0.025",method="GET",path_template="/healthcheck"} 612003.0
starlette_requests_processing_time_seconds_bucket{le="0.05",method="GET",path_template="/healthcheck"} 612293.0
starlette_requests_processing_time_seconds_bucket{le="0.075",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.1",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.25",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.75",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="1.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="2.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="5.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="7.5",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="10.0",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="+Inf",method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_count{method="GET",path_template="/healthcheck"} 612321.0
starlette_requests_processing_time_seconds_bucket{le="0.005",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.01",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.025",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.05",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.075",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.1",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.25",method="GET",path_template="/metrics"} 0.0
starlette_requests_processing_time_seconds_bucket{le="0.5",method="GET",path_template="/metrics"} 1533.0
starlette_requests_processing_time_seconds_bucket{le="0.75",method="GET",path_template="/metrics"} 5084.0
starlette_requests_processing_time_seconds_bucket{le="1.0",method="GET",path_template="/metrics"} 5085.0
starlette_requests_processing_time_seconds_bucket{le="2.5",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="5.0",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="7.5",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="10.0",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_bucket{le="+Inf",method="GET",path_template="/metrics"} 5086.0
starlette_requests_processing_time_seconds_count{method="GET",path_template="/metrics"} 5086.0
</pre>
</details>

For example, here is the number of waiting jobs for the /first-rows endpoint, as reported by the uvicorn workers: the value varies from 11404 to 11513.

![chart](https://user-images.githubusercontent.com/1676121/186755033-669d4e8f-c3f9-43fd-aca5-5e8835f66a36.png)

(see https://observablehq.com/@huggingface/variability-in-datasets-server-metrics)

In Grafana (https://grafana.huggingface.tech/d/SaHl2KX7z/datasets-server-admin-cache-and-queue?orgId=1&from=now-24h&to=now&refresh=30s), I use the median (`quantile(0.5, ...)`) to select a value, but it does not feel right.

Related to https://github.com/huggingface/datasets-server/pull/497