[ 
https://issues.apache.org/jira/browse/HBASE-22477?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Duo Zhang updated HBASE-22477:
------------------------------
    Summary: Throwing exception when meta region is not in OPEN state in client 
registry may crash a master  (was: Throwing exception when meta region is not 
in OPEN state in client registry may crash a naster)

> Throwing exception when meta region is not in OPEN state in client registry 
> may crash a master
> ----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-22477
>                 URL: https://issues.apache.org/jira/browse/HBASE-22477
>             Project: HBase
>          Issue Type: Bug
>          Components: Client, master, meta
>            Reporter: Duo Zhang
>            Priority: Major
>
> {noformat}
> 2019-05-26 17:10:31,195 ERROR [master/asf906:0:becomeActiveMaster] 
> helpers.MarkerIgnoringBase(159): Failed to become active master
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Cannot get the 
> location for replica0 of region for  in hbase:meta
>       at 
> org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.getRegionLocations(RpcRetryingCallerWithReadReplicas.java:335)
>       at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:153)
>       at 
> org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:58)
>       at 
> org.apache.hadoop.hbase.client.RpcRetryingCallerImpl.callWithoutRetries(RpcRetryingCallerImpl.java:192)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:263)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.loadCache(ClientScanner.java:405)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.nextWithSyncCache(ClientScanner.java:285)
>       at 
> org.apache.hadoop.hbase.client.ClientScanner.next(ClientScanner.java:564)
>       at 
> org.apache.hadoop.hbase.MetaTableAccessor.scanMeta(MetaTableAccessor.java:766)
>       at 
> org.apache.hadoop.hbase.MetaTableAccessor.scanMeta(MetaTableAccessor.java:734)
>       at 
> org.apache.hadoop.hbase.MetaTableAccessor.scanMeta(MetaTableAccessor.java:690)
>       at 
> org.apache.hadoop.hbase.MetaTableAccessor.fullScanRegions(MetaTableAccessor.java:220)
>       at 
> org.apache.hadoop.hbase.master.assignment.RegionStateStore.visitMeta(RegionStateStore.java:77)
>       at 
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.loadMeta(AssignmentManager.java:1294)
>       at 
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.joinCluster(AssignmentManager.java:1255)
>       at 
> org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:1100)
>       at 
> org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2375)
>       at org.apache.hadoop.hbase.master.HMaster.lambda$run$0(HMaster.java:605)
>       at java.lang.Thread.run(Thread.java:748)
> Caused by: java.io.IOException: Meta region is in state OPENING
>       at 
> org.apache.hadoop.hbase.client.ZKAsyncRegistry.lambda$getMetaRegionLocation$1(ZKAsyncRegistry.java:162)
>       at 
> org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:70)
>       at 
> java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
>       at 
> java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
>       at 
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
>       at 
> java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
>       at 
> org.apache.hadoop.hbase.client.ZKAsyncRegistry.lambda$getAndConvert$0(ZKAsyncRegistry.java:81)
>       at 
> org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:70)
>       at 
> java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
>       at 
> java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
>       at 
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
>       at 
> java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
>       at 
> org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient$ZKTask$1.exec(ReadOnlyZKClient.java:174)
>       at 
> org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient.run(ReadOnlyZKClient.java:342)
>       ... 1 more
> {noformat}
> I think the logic is introduced at the time that we do not change the state 
> of meta region on zk. But now, we will change the state of meta region, so 
> maybe we should remove the logic.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Reply via email to