[HDDS-2984] Allocate Block failing with NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Labels: pull-request-available teragentest
• Target Version/s: 0.5.0
• Assignee: Attila Doroszlai
• Reporter: Bharat Viswanadham
• Created: 05/Feb/20 22:48
• Updated: 25/Feb/20 09:00
• Resolved: 25/Feb/20 09:00

Description

When running teragen in one of the run observed this error.

05 14:43:16,635 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : INTERNAL_ERROR org.apache.hadoop.ozone.om.exceptions.OMException: java.lang.NullPointerException at java.util.Objects.requireNonNull(Objects.java:203) at java.util.Optional.<init>(Optional.java:96) at java.util.Optional.of(Optional.java:108) at org.apache.hadoop.hdds.scm.pipeline.SCMPipelineMetrics.incNumBlocksAllocated(SCMPipelineMetrics.java:118) at org.apache.hadoop.hdds.scm.pipeline.SCMPipelineManager.incNumBlocksAllocatedMetric(SCMPipelineManager.java:520) at org.apache.hadoop.hdds.scm.block.BlockManagerImpl.newBlock(BlockManagerImpl.java:265) at org.apache.hadoop.hdds.scm.block.BlockManagerImpl.allocateBlock(BlockManagerImpl.java:233) at org.apache.hadoop.hdds.scm.server.SCMBlockProtocolServer.allocateBlock(SCMBlockProtocolServer.java:188) at org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.allocateScmBlock(ScmBlockLocationProtocolServerSideTranslatorPB.java:159) at org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.processMessage(ScmBlockLocationProtocolServerSideTranslatorPB.java:117) at org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:72) at org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocolServerSideTranslatorPB.send(ScmBlockLocationProtocolServerSideTranslatorPB.java:98) at org.apache.hadoop.hdds.protocol.proto.ScmBlockLocationProtocolProtos$ScmBlockLocationProtocolService$2.callBlockingMethod(ScmBlockLocationProtocolProtos.java:13157) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:984) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:912) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1876) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2882) at org.apache.hadoop.ozone.om.protocolPB.OzoneManagerProtocolClientSideTranslatorPB.handleError(OzoneManagerProtocolClientSideTranslatorPB.java:792) at org.apache.hadoop.ozone.om.protocolPB.OzoneManagerProtocolClientSideTranslatorPB.createFile(OzoneManagerProtocolClientSideTranslatorPB.java:1596) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.hdds.tracing.TraceAllMethod.invoke(TraceAllMethod.java:71) at com.sun.proxy.$Proxy18.createFile(Unknown Source) at org.apache.hadoop.ozone.client.rpc.RpcClient.createFile(RpcClient.java:1071) at org.apache.hadoop.ozone.client.OzoneBucket.createFile(OzoneBucket.java:538) at org.apache.hadoop.fs.ozone.BasicOzoneClientAdapterImpl.createFile(BasicOzoneClientAdapterImpl.java:208) at org.apache.hadoop.fs.ozone.BasicOzoneFileSystem.createOutputStream(BasicOzoneFileSystem.java:256) at org.apache.hadoop.fs.ozone.BasicOzoneFileSystem.create(BasicOzoneFileSystem.java:237) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1133) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1113) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1002) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:990) at org.apache.hadoop.examples.terasort.TeraOutputFormat.getRecordWriter(TeraOutputFormat.java:141) at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:659) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:779) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1876) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)

 

Issue Links

• links to: GitHub Pull Request #602