Diff Block duration time/size

[akshay sharma]

Hi All, 

I have two Prometheus Servers running in different Environment, but with the same configuration. 

/prometheus -setup-1$ promtool tsdb list -r .
BLOCK ULID                  MIN TIME                       MAX TIME                       DURATION                                                                NUM SAMPLES  NUM CHUNKS   NUM SERIES              SIZE
01HSSB3XQQW7JCPSADSQGX5ZTX  2024-03-22 12:00:00 +0000 UTC  2024-03-24 18:00:00 +0000 UTC  53h59m59.924s  970756056    10331225     272907                  1GiB474MiB931KiB944B
01HSYXKQ6BX48HHGS7Q1F9MBFV  2024-03-24 18:00:00 +0000 UTC  2024-03-27 00:00:00 +0000 UTC  54h0m0s        971073224    10334067     273194                  1GiB469MiB838KiB779B

/prometheus -setup-2$ promtool tsdb list -r .
BLOCK ULID                  MIN TIME                       MAX TIME                       DURATION                                                          NUM SAMPLES  NUM CHUNKS   NUM SERIES   SIZE
01HV1NZ9VDFN975E810G0GED3E  2024-04-08 18:00:00 +0000 UTC  2024-04-09 12:00:00 +0000 UTC  18h0m0s        261235289    3220027      311949       402MiB508KiB217B
01HV3TMZAETTE8XKGJTNWGG4FT  2024-04-09 12:00:00 +0000 UTC  2024-04-10 06:00:00 +0000 UTC  17h59m59.965s  261267868    3221729      313643       402MiB323KiB21B

{
  "status": "success",
  "data": {
    "alertmanager.notification-queue-capacity": "10000",
    "alertmanager.timeout": "",
    "config.file": "/etc/prometheus/config_out/prometheus.env.yaml",
    "enable-feature": "",
    "log.format": "logfmt",
    "log.level": "info",
    "query.lookback-delta": "5m",
    "query.max-concurrency": "20",
    "query.max-samples": "50000000",
    "query.timeout": "2m",
    "rules.alert.for-grace-period": "10m",
    "rules.alert.for-outage-tolerance": "1h",
    "rules.alert.resend-delay": "1m",
    "scrape.adjust-timestamps": "true",
    "scrape.discovery-reload-interval": "5s",
    "scrape.timestamp-tolerance": "2ms",
    "storage.agent.no-lockfile": "false",
    "storage.agent.path": "data-agent/",
    "storage.agent.retention.max-time": "0s",
    "storage.agent.retention.min-time": "0s",
    "storage.agent.wal-compression": "true",
    "storage.agent.wal-segment-size": "0B",
    "storage.agent.wal-truncate-frequency": "0s",
    "storage.remote.flush-deadline": "1m",
    "storage.remote.read-concurrent-limit": "10",
    "storage.remote.read-max-bytes-in-frame": "1048576",
    "storage.remote.read-sample-limit": "50000000",
    "storage.tsdb.allow-overlapping-blocks": "true",
    "storage.tsdb.head-chunks-write-queue-size": "0",
    "storage.tsdb.max-block-chunk-segment-size": "0B",
    "storage.tsdb.max-block-duration": "3d",
    "storage.tsdb.min-block-duration": "2h",
    "storage.tsdb.no-lockfile": "false",
    "storage.tsdb.path": "/prometheus",
    "storage.tsdb.retention": "0s",
    "storage.tsdb.retention.size": "80GiB",
    "storage.tsdb.retention.time": "30d",
    "storage.tsdb.wal-compression": "true",
    "storage.tsdb.wal-segment-size": "0B",
    "web.config.file": "/etc/prometheus/web_config/web-config.yaml",
    "web.console.libraries": "/etc/prometheus/console_libraries",
    "web.console.templates": "/etc/prometheus/consoles",
    "web.cors.origin": ".*",
    "web.enable-admin-api": "false",
    "web.enable-lifecycle": "true",
    "web.enable-remote-write-receiver": "false",
    "web.external-url": "http://prometheus.x.y.com/",
    "web.listen-address": "0.0.0.0:9090",
    "web.max-connections": "512",
    "web.page-title": "Prometheus Time Series Collection and Processing Server",
    "web.read-timeout": "5m",
    "web.route-prefix": "/",
    "web.user-assets": ""
  }
}

Question:

1) why do both the server has a different block duration/size? 

2) How can we find number of timeseries per/sec?

3) How can we find churn rate? 

[akshay sharma]

Can anyone please help? 

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