[
https://issues.apache.org/jira/browse/HBASE-16234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15401458#comment-15401458
]
Heng Chen commented on HBASE-16234:
-----------------------------------
hadoop check error has no relates with this patch. patch v5 lgtm, will commit
it later if no other concerns.
{code}
[ERROR] Error invoking method 'get(java.lang.Integer)' in java.util.ArrayList
at META-INF/LICENSE.vm[line 1627, column 22]
java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
at
org.apache.velocity.runtime.parser.node.ASTIndex.execute(ASTIndex.java:149)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
at
org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTReference.java:530)
at
org.apache.velocity.runtime.parser.node.ASTExpression.evaluate(ASTExpression.java:62)
at
org.apache.velocity.runtime.parser.node.ASTNotNode.evaluate(ASTNotNode.java:63)
at
org.apache.velocity.runtime.parser.node.ASTExpression.evaluate(ASTExpression.java:62)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:85)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at
org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:420)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
at org.apache.velocity.Template.merge(Template.java:356)
at org.apache.velocity.Template.merge(Template.java:260)
at
org.apache.velocity.app.VelocityEngine.mergeTemplate(VelocityEngine.java:354)
at
org.apache.maven.plugin.resources.remote.ProcessRemoteResourcesMojo.processResourceBundles(ProcessRemoteResourcesMojo.java:1164)
at
org.apache.maven.plugin.resources.remote.ProcessRemoteResourcesMojo.execute(ProcessRemoteResourcesMojo.java:520)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at
org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:635)
at java.util.ArrayList.get(ArrayList.java:411)
... 45 more
{code}
> Expect and handle nulls when assigning replicas
> -----------------------------------------------
>
> Key: HBASE-16234
> URL: https://issues.apache.org/jira/browse/HBASE-16234
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 2.0.0
> Reporter: Harsh J
> Assignee: Yi Liang
> Attachments: HBASE-16234-V1.patch, HBASE-16234-V2.patch,
> HBASE-16234-V3.patch, HBASE-16234-V4.patch, HBASE-16234-V5.patch
>
>
> Observed this on a cluster:
> {code}
> FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting
> shutdown.
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.master.AssignmentManager.replicaRegionsNotRecordedInMeta(AssignmentManager.java:2799)
>
> at
> org.apache.hadoop.hbase.master.AssignmentManager.assignAllUserRegions(AssignmentManager.java:2778)
>
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processDeadServersAndRegionsInTransition(AssignmentManager.java:638)
>
> at
> org.apache.hadoop.hbase.master.AssignmentManager.joinCluster(AssignmentManager.java:485)
>
> at
> org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:723)
>
> at org.apache.hadoop.hbase.master.HMaster.access$500(HMaster.java:169)
> at org.apache.hadoop.hbase.master.HMaster$1.run(HMaster.java:1481)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> It looks like {{FSTableDescriptors#get(…)}} can be expected to return null in
> some cases, but {{AssignmentManager.replicaRegionsNotRecordedInMeta(…)}} does
> not currently have any handling for such a possibility.
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