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https://issues.apache.org/jira/browse/IGNITE-27237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrey Mashenkov updated IGNITE-27237:
--------------------------------------
    Labels: ignite-3  (was: ignite-2)

> Critical system error on Unable to start rebalance 
> ---------------------------------------------------
>
>                 Key: IGNITE-27237
>                 URL: https://issues.apache.org/jira/browse/IGNITE-27237
>             Project: Ignite
>          Issue Type: Improvement
>            Reporter:  Kirill Sizov
>            Priority: Major
>              Labels: ignite-3
>
> After the merge of IGNITE-23633 we have started to get occasional exceptions 
> like:
> {noformat}
> [2025-11-28T05:07:33,684][ERROR][%iiimnrt_imnfpr_2%rebalance-scheduler-0][FailureManager]
>  Critical system error detected. Will be handled accordingly to configured 
> handler [hnd=NoOpFailureHandler [super=AbstractFailureHandler 
> [ignoredFailureTypes=UnmodifiableSet [SYSTEM_WORKER_BLOCKED, 
> SYSTEM_CRITICAL_OPERATION_TIMEOUT]]], failureCtx=CRITICAL_ERROR, 
> failureCtxId=e853191d-0d35-4a68-b907-1969bcca0096]
> org.apache.ignite.internal.failure.StackTraceCapturingException: Unable to 
> start rebalance [zonePartitionId=20_part_0, term=2]
>   at 
> org.apache.ignite.internal.failure.FailureManager.process(FailureManager.java:192)
>   at 
> org.apache.ignite.internal.failure.FailureManager.process(FailureManager.java:169)
>   at 
> org.apache.ignite.internal.distributionzones.rebalance.ZoneRebalanceRaftGroupEventsListener.maybeRunFailHandler(ZoneRebalanceRaftGroupEventsListener.java:283)
>   at 
> org.apache.ignite.internal.distributionzones.rebalance.ZoneRebalanceRaftGroupEventsListener.lambda$onLeaderElected$1(ZoneRebalanceRaftGroupEventsListener.java:266)
>   at 
> java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
>   at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
>   at 
> java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
>   at 
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
>   at 
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
>   at java.base/java.lang.Thread.run(Thread.java:834)
> {noformat}
> There is a plan to fix it in IGNITE-26085



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