[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-23 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Attachment: 0003-YARN-2946.patch

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0001-YARN-2946.patch, 
 0002-YARN-2946.patch, 0003-YARN-2946.patch, 0003-YARN-2946.patch, 
 RM_BeforeFix_Deadlock_cycle_1.png, RM_BeforeFix_Deadlock_cycle_2.png, 
 TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-23 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Attachment: 0004-YARN-2946.patch

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0001-YARN-2946.patch, 
 0002-YARN-2946.patch, 0003-YARN-2946.patch, 0003-YARN-2946.patch, 
 0004-YARN-2946.patch, RM_BeforeFix_Deadlock_cycle_1.png, 
 RM_BeforeFix_Deadlock_cycle_2.png, TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-22 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Attachment: 0003-YARN-2946.patch

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0001-YARN-2946.patch, 
 0002-YARN-2946.patch, 0003-YARN-2946.patch, 
 RM_BeforeFix_Deadlock_cycle_1.png, RM_BeforeFix_Deadlock_cycle_2.png, 
 TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-19 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Attachment: 0001-YARN-2946.patch

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0001-YARN-2946.patch, 
 0002-YARN-2946.patch, RM_BeforeFix_Deadlock_cycle_1.png, 
 RM_BeforeFix_Deadlock_cycle_2.png, TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-13 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Summary: DeadLocks in RMStateStore-ZKRMStateStore  (was: DeadLock's in 
RMStateStore-ZKRMStateStore)

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0002-YARN-2946.patch, 
 TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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[jira] [Updated] (YARN-2946) DeadLocks in RMStateStore-ZKRMStateStore

2014-12-13 Thread Rohith (JIRA) 

 [ 
https://issues.apache.org/jira/browse/YARN-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rohith updated YARN-2946:
-
Attachment: RM_BeforeFix_Deadlock_cycle_2.png
RM_BeforeFix_Deadlock_cycle_1.png

 DeadLocks in RMStateStore-ZKRMStateStore
 --

 Key: YARN-2946
 URL: https://issues.apache.org/jira/browse/YARN-2946
 Project: Hadoop YARN
  Issue Type: Bug
  Components: resourcemanager
Affects Versions: 2.7.0
Reporter: Rohith
Assignee: Rohith
Priority: Blocker
 Attachments: 0001-YARN-2946.patch, 0002-YARN-2946.patch, 
 RM_BeforeFix_Deadlock_cycle_1.png, RM_BeforeFix_Deadlock_cycle_2.png, 
 TestYARN2946.java


 Found one deadlock in ZKRMStateStore.
 # Initial stage zkClient is null because of zk disconnected event.
 # When ZKRMstatestore#runWithCheck()  wait(zkSessionTimeout) for zkClient to 
 re establish zookeeper connection either via synconnected or expired event, 
 it is highly possible that any other thred can obtain lock on 
 {{ZKRMStateStore.this}} from state machine transition events. This cause 
 Deadlock in ZKRMStateStore.



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