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https://issues.apache.org/jira/browse/PHOENIX-7888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Palash Chauhan resolved PHOENIX-7888.
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Resolution: Fixed
> Add IndexCDCConsumer liveness gauge, startup-failure counter, and
> startup-wait histogram
> ----------------------------------------------------------------------------------------
>
> Key: PHOENIX-7888
> URL: https://issues.apache.org/jira/browse/PHOENIX-7888
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Palash Chauhan
> Assignee: Palash Chauhan
> Priority: Major
> Fix For: 5.4.0, 5.3.2
>
>
> h4. Background
> {{IndexCDCConsumer}} is started by the {{IndexRegionObserver}} coprocessor
> when an EC-indexed region opens. Its run loop has several early-exit paths
> (no EC index found, CDC_STREAM never appeared, unexpected COMPLETE tracker
> status, uncaught exception) where the thread exits silently — only emitting a
> log line, with no metric signal that the consumer is dead.
> h4. Problem
> Three concrete gaps:
> # *No direct liveness signal.*
> # {*}Silent start-failure exits{*}.
> # *Invisible startup latency.*
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