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Sunil Govindan commented on YARN-9329: -------------------------------------- Yes. Thats more better. > Doing updatePriority is blocking when using FairScheduler > --------------------------------------------------------- > > Key: YARN-9329 > URL: https://issues.apache.org/jira/browse/YARN-9329 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Jiandan Yang > Assignee: Jiandan Yang > Priority: Major > Labels: fairscheduler > Attachments: YARN-9329.001.patch > > > updating priority is blocked when using FairScheduler, the command is as > follows: > {code:java} > bin/yarn application -appId application_1550834280474_0003 -updatePriority > 500 > {code} > The RM rpc handler thread is blocked in the future.get(), although > FairScheduler does not support priority currently, it is not friendly to > user when executing updatePriority. > The trace of handler is: > {code:java} > "IPC Server handler 44 on 18040" #258 daemon prio=5 os_prio=0 > tid=0x00007f8e65701000 nid=0x1b9f1 waiting on condition [0x00007f8e29123000] > java.lang.Thread.State: WAITING (parking) > at sun.misc.Unsafe.park(Native Method) > - parking to wait for <0x0000000671f13da0> (a > com.google.common.util.concurrent.AbstractFuture$Sync) > at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304) > at > com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:275) > at > com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:111) > at > org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.getChecked(RMAppManager.java:225) > at > org.apache.hadoop.yarn.server.resourcemanager.RMAppManager.updateApplicationPriority(RMAppManager.java:734) > - locked <0x000000067872ed98> (a > org.apache.hadoop.yarn.api.records.impl.pb.ApplicationIdPBImpl) > at > org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.updateApplicationPriority(ClientRMService.java:1658) > at > org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.updateApplicationPriority(ApplicationClientProtocolPBServiceImpl.java:622) > at > org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:659) > at > org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:524) > at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1025) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:881) > at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:827) > 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:1844) > at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2699) > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org