[ https://issues.apache.org/jira/browse/HDFS-16097?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiaoqiao He updated HDFS-16097: ------------------------------- Status: Patch Available (was: Open) > Datanode receives ipc requests will throw NPE when datanode quickly restart > ---------------------------------------------------------------------------- > > Key: HDFS-16097 > URL: https://issues.apache.org/jira/browse/HDFS-16097 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Environment: > Reporter: lei w > Assignee: lei w > Priority: Major > Attachments: HDFS-16097.001.patch > > > Datanode receives ipc requests will throw NPE when datanode quickly restart. > This is because when DN is reStarted, BlockPool is first registered with > blockPoolManager and then fsdataset is initialized. When BlockPool is > registered to blockPoolManager without initializing fsdataset, DataNode > receives an IPC request will throw NPE, because it will call related methods > provided by fsdataset. The stack exception is as follows: > {code:java} > java.lang.NullPointerException > at > org.apache.hadoop.hdfs.server.datanode.DataNode.initReplicaRecovery(DataNode.java:3468) > at > org.apache.hadoop.hdfs.protocolPB.InterDatanodeProtocolServerSideTranslatorPB.initReplicaRecovery(InterDatanodeProtocolServerSideTranslatorPB.java:55) > at > org.apache.hadoop.hdfs.protocol.proto.InterDatanodeProtocolProtos$InterDatanodeProtocolService$2.callBlockingMethod(InterDatanodeProtocolProtos.java:3105) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:916) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:862) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org