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https://issues.apache.org/jira/browse/HDDS-16625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-16625:
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Labels: pull-request-available (was: )
> Expose SCM transactionInfo metrics and add Grafana HA Catchup panel.
> --------------------------------------------------------------------
>
> Key: HDDS-16625
> URL: https://issues.apache.org/jira/browse/HDDS-16625
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Sadanand Shenoy
> Assignee: Sadanand Shenoy
> Priority: Major
> Labels: pull-request-available
>
> In SCM HA troubleshooting, the existing dashboard shows applied index/lag but
> does not show the SCM DB flush state directly.
> This makes it hard to correlate Ratis catch-up with DB durability progress on
> leader/followers.
> This change adds SCM HA metrics for DB flush visibility and surfaces them in
> Grafana.
> Changes
> Expose new SCM HA metrics from SCM:
> latest flushed transactionInfo index
> last SCM DB flush time (epoch ms)
> Wire metrics from SCM HA transaction buffer into SCMHAMetrics.
> Add unit coverage for new metrics in SCM HA metrics test.
> Add/extend Grafana dashboard:
> Ozone - SCM HA Catchup
> new panels:
> SCM Flush Index (transactionInfo)
> SCM Last Flush Time
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