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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. -- This message was sent by Atlassian Jira (v8.3.4#803005)