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https://issues.apache.org/jira/browse/HBASE-25280?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Michael Stack resolved HBASE-25280.
-----------------------------------
Hadoop Flags: Reviewed
Resolution: Fixed
Merged to feature branches, HBASE-18070 and HBASE-18070.branch-2. Thanks for
reviews [~huaxiangsun] and [~zhangduo]
> [meta replicas] ArrayIndexOutOfBoundsException in ZKConnectionRegistry
> ----------------------------------------------------------------------
>
> Key: HBASE-25280
> URL: https://issues.apache.org/jira/browse/HBASE-25280
> Project: HBase
> Issue Type: Bug
> Components: meta replicas
> Affects Versions: HBASE-18070
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: HBASE-18070, HBASE-18070.branch-2
>
>
> ITBLL Testing HBASE-18070 feature, [~huaxiangsun] found this:
> {code:java}
> 2020-11-12 19:48:12,358 ERROR org.apache.hadoop.hbase.util.FutureUtils:
> Unexpected error caught when processing
> CompletableFuturejava.lang.ArrayIndexOutOfBoundsException: Index 3 out of
> bounds for length 3 at
> org.apache.hadoop.hbase.client.ZKConnectionRegistry.lambda$getMetaRegionLocation$2(ZKConnectionRegistry.java:180)
> at
> org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
> at
> java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859)
> at
> java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837)
> at
> java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
> at
> java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073)
> at
> org.apache.hadoop.hbase.client.ZKConnectionRegistry.lambda$getAndConvert$0(ZKConnectionRegistry.java:78)
> at
> org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
> at
> java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859)
> at
> java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837)
> at
> java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506)
> at
> java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073)
> at
> org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient$ZKTask$1.exec(ReadOnlyZKClient.java:174)
> at
> org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient.run(ReadOnlyZKClient.java:342)
> at java.base/java.lang.Thread.run(Thread.java:834) {code}
> The code has been this way a long time but his running with four replicas
> seems to have revealed a race exposed by using replicaid as index.
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