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https://issues.apache.org/jira/browse/HBASE-25255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17231059#comment-17231059
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Guanghao Zhang commented on HBASE-25255:
----------------------------------------
{quote} it is possible that before meta loaded is finished, we could add the
region state node for rsgroup table to AssignmentManager with OFFLINE state,
and then we will call processOfflineRegions to assign the offline regions, but
at the same time, the CreateTableProcedure will assign it too, thus we get this
assertion error.
{quote}
Other system tables have same problem?
> Master fails to initialize when creating rs group table
> -------------------------------------------------------
>
> Key: HBASE-25255
> URL: https://issues.apache.org/jira/browse/HBASE-25255
> Project: HBase
> Issue Type: Bug
> Components: master, rsgroup
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Attachments:
> TEST-org.apache.hadoop.hbase.rsgroup.TestRSGroupsKillRS.xml
>
>
> Saw this when setup TestRSGroupsKillRS
> {noformat}
> 2020-11-07 16:29:54,565 ERROR [master/e476f4f509a7:0:becomeActiveMaster]
> helpers.MarkerIgnoringBase(159): Failed to become active master
> java.lang.AssertionError
> at
> org.apache.hadoop.hbase.master.assignment.RegionStateNode.setProcedure(RegionStateNode.java:198)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.createAssignProcedure(AssignmentManager.java:647)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.lambda$null$6(AssignmentManager.java:878)
> at
> java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at
> java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
> at
> java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
> at
> java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
> at
> java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at
> java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:485)
> at
> java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:272)
> at
> java.util.HashMap$EntrySpliterator.forEachRemaining(HashMap.java:1699)
> at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
> at
> java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
> at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:546)
> at
> java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260)
> at
> java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:505)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.createAssignProcedures(AssignmentManager.java:879)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.createRoundRobinAssignProcedures(AssignmentManager.java:759)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.createRoundRobinAssignProcedures(AssignmentManager.java:775)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.processOfflineRegions(AssignmentManager.java:1513)
> at
> org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:1012)
> at
> org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2116)
> at org.apache.hadoop.hbase.master.HMaster.lambda$run$0(HMaster.java:515)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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