[ https://issues.apache.org/jira/browse/HDFS-3443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinod Kumar Vavilapalli closed HDFS-3443. ----------------------------------------- > Fix NPE when namenode transition to active during startup by adding > checkNNStartup() in NameNodeRpcServer > --------------------------------------------------------------------------------------------------------- > > Key: HDFS-3443 > URL: https://issues.apache.org/jira/browse/HDFS-3443 > Project: Hadoop HDFS > Issue Type: Bug > Components: auto-failover, ha > Reporter: suja s > Assignee: Vinayakumar B > Fix For: 2.6.1 > > Attachments: HDFS-3443-003.patch, HDFS-3443-004.patch, > HDFS-3443-005.patch, HDFS-3443-006.patch, HDFS-3443-007.patch, > HDFS-3443_1.patch, HDFS-3443_1.patch > > > Start NN > Let NN standby services be started. > Before the editLogTailer is initialised start ZKFC and allow the > activeservices start to proceed further. > Here editLogTailer.catchupDuringFailover() will throw NPE. > void startActiveServices() throws IOException { > LOG.info("Starting services required for active state"); > writeLock(); > try { > FSEditLog editLog = dir.fsImage.getEditLog(); > > if (!editLog.isOpenForWrite()) { > // During startup, we're already open for write during initialization. > editLog.initJournalsForWrite(); > // May need to recover > editLog.recoverUnclosedStreams(); > > LOG.info("Catching up to latest edits from old active before " + > "taking over writer role in edits logs."); > editLogTailer.catchupDuringFailover(); > {noformat} > 2012-05-18 16:51:27,585 WARN org.apache.hadoop.ipc.Server: IPC Server > Responder, call org.apache.hadoop.ha.HAServiceProtocol.getServiceStatus from > XX.XX.XX.55:58003: output error > 2012-05-18 16:51:27,586 WARN org.apache.hadoop.ipc.Server: IPC Server handler > 8 on 8020, call org.apache.hadoop.ha.HAServiceProtocol.transitionToActive > from XX.XX.XX.55:58004: error: java.lang.NullPointerException > java.lang.NullPointerException > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startActiveServices(FSNamesystem.java:602) > at > org.apache.hadoop.hdfs.server.namenode.NameNode$NameNodeHAContext.startActiveServices(NameNode.java:1287) > at > org.apache.hadoop.hdfs.server.namenode.ha.ActiveState.enterState(ActiveState.java:61) > at > org.apache.hadoop.hdfs.server.namenode.ha.HAState.setStateInternal(HAState.java:63) > at > org.apache.hadoop.hdfs.server.namenode.ha.StandbyState.setState(StandbyState.java:49) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.transitionToActive(NameNode.java:1219) > at > org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.transitionToActive(NameNodeRpcServer.java:978) > at > org.apache.hadoop.ha.protocolPB.HAServiceProtocolServerSideTranslatorPB.transitionToActive(HAServiceProtocolServerSideTranslatorPB.java:107) > at > org.apache.hadoop.ha.proto.HAServiceProtocolProtos$HAServiceProtocolService$2.callBlockingMethod(HAServiceProtocolProtos.java:3633) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:427) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:916) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1692) > at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1688) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:396) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1686) > 2012-05-18 16:51:27,586 INFO org.apache.hadoop.ipc.Server: IPC Server handler > 9 on 8020 caught an exception > java.nio.channels.ClosedChannelException > at > sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:133) > at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:324) > at org.apache.hadoop.ipc.Server.channelWrite(Server.java:2092) > at org.apache.hadoop.ipc.Server.access$2000(Server.java:107) > at > org.apache.hadoop.ipc.Server$Responder.processResponse(Server.java:930) > at org.apache.hadoop.ipc.Server$Responder.doRespond(Server.java:994) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1738) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)