[jira] [Created] (YARN-9329) Doing updatePriority is blocking when using FairScheduler

["Jiandan Yang (JIRA)" <ji...@apache.org>]

Jiandan Yang  created YARN-9329:
-----------------------------------

             Summary: 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 


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}



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