[ 
https://issues.apache.org/jira/browse/YARN-5379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Sangjin Lee updated YARN-5379:
------------------------------
    Description: 
The {{TestHBaseTimelineStorage. testWriteApplicationToHBase()}} test seems to 
fail intermittently:
{noformat}
java.lang.AssertionError: null
        at org.junit.Assert.fail(Assert.java:86)
        at org.junit.Assert.assertTrue(Assert.java:41)
        at org.junit.Assert.assertTrue(Assert.java:52)
        at 
org.apache.hadoop.yarn.server.timelineservice.storage.TestHBaseTimelineStorage.testWriteApplicationToHBase(TestHBaseTimelineStorage.java:817)
{noformat}

The stdout output:
{noformat}
2016-07-13 00:15:48,883 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x2b7962a2 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,883 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x2b7962a20x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,886 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,887 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38097
2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38097
2016-07-13 00:15:48,896 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520025 with negotiated timeout 40000 for client /127.0.0.1:38097
2016-07-13 00:15:48,896 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520025, negotiated timeout = 40000
2016-07-13 00:15:48,911 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x32130e61 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,912 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x32130e610x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,917 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,918 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38098
2016-07-13 00:15:48,921 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,921 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38098
2016-07-13 00:15:48,929 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520026 with negotiated timeout 40000 for client /127.0.0.1:38098
2016-07-13 00:15:48,929 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520026, negotiated timeout = 40000
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(541)) - closing the entity table
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(546)) - closing the app_flow table
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(551)) - closing the application table
2016-07-13 00:15:48,941 INFO  
[RpcServer.reader=1,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35467 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:48,950 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(555)) - closing the flow run table
2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(560)) - closing the flowActivityTable 
table
2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(565)) - closing the hbase Connection
2016-07-13 00:15:48,958 INFO  [main] 
client.ConnectionManager$HConnectionImplementation 
(ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
sessionid=0x155e19baa520026
2016-07-13 00:15:48,958 INFO  [ProcessThread(sid:0 cport:-1):] 
server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
Processed session termination for sessionid: 0x155e19baa520026
2016-07-13 00:15:48,968 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:close(684)) - Session: 0x155e19baa520026 closed
2016-07-13 00:15:48,968 INFO  [main-EventThread] zookeeper.ClientCnxn 
(ClientCnxn.java:run(512)) - EventThread shut down
2016-07-13 00:15:48,968 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
connection for client /127.0.0.1:38098 which had sessionid 0x155e19baa520026
2016-07-13 00:15:48,979 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x4596f8f3 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,979 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x4596f8f30x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,980 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,981 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38100
2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38100
2016-07-13 00:15:48,987 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520027 with negotiated timeout 40000 for client /127.0.0.1:38100
2016-07-13 00:15:48,988 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520027, negotiated timeout = 40000
2016-07-13 00:15:48,992 INFO  
[RpcServer.reader=2,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35470 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:49,001 INFO  
[RpcServer.reader=3,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35472 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:49,010 INFO  [main] storage.HBaseTimelineReaderImpl 
(HBaseTimelineReaderImpl.java:serviceStop(64)) - closing the hbase Connection
2016-07-13 00:15:49,010 INFO  [main] 
client.ConnectionManager$HConnectionImplementation 
(ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
sessionid=0x155e19baa520025
2016-07-13 00:15:49,011 INFO  [ProcessThread(sid:0 cport:-1):] 
server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
Processed session termination for sessionid: 0x155e19baa520025
2016-07-13 00:15:49,021 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:close(684)) - Session: 0x155e19baa520025 closed
2016-07-13 00:15:49,021 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
connection for client /127.0.0.1:38097 which had sessionid 0x155e19baa520025
2016-07-13 00:15:49,021 INFO  [main-EventThread] zookeeper.ClientCnxn 
(ClientCnxn.java:run(512)) - EventThread shut down
{noformat}


  was:
The {{TestHBaseTimelineStorage. testWriteApplicationToHBase()}} test seems to 
fail intermittently:
{noformat}
java.lang.AssertionError: null
        at org.junit.Assert.fail(Assert.java:86)
        at org.junit.Assert.assertTrue(Assert.java:41)
        at org.junit.Assert.assertTrue(Assert.java:52)
        at 
org.apache.hadoop.yarn.server.timelineservice.storage.TestHBaseTimelineStorage.testWriteApplicationToHBase(TestHBaseTimelineStorage.java:817)
{noformat}

The stdout output:
{noformat}
2016-07-13 00:15:48,883 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x2b7962a2 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,883 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x2b7962a20x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,886 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,887 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38097
2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38097
2016-07-13 00:15:48,896 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520025 with negotiated timeout 40000 for client /127.0.0.1:38097
2016-07-13 00:15:48,896 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520025, negotiated timeout = 40000
2016-07-13 00:15:48,911 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x32130e61 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,912 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x32130e610x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,917 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,918 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38098
2016-07-13 00:15:48,921 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,921 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38098
2016-07-13 00:15:48,929 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520026 with negotiated timeout 40000 for client /127.0.0.1:38098
2016-07-13 00:15:48,929 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520026, negotiated timeout = 40000
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(541)) - closing the entity table
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(546)) - closing the app_flow table
2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(551)) - closing the application table
2016-07-13 00:15:48,941 INFO  
[RpcServer.reader=1,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35467 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:48,950 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(555)) - closing the flow run table
2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(560)) - closing the flowActivityTable 
table
2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
(HBaseTimelineWriterImpl.java:serviceStop(565)) - closing the hbase Connection
2016-07-13 00:15:48,958 INFO  [main] 
client.ConnectionManager$HConnectionImplementation 
(ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
sessionid=0x155e19baa520026
2016-07-13 00:15:48,958 INFO  [ProcessThread(sid:0 cport:-1):] 
server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
Processed session termination for sessionid: 0x155e19baa520026
2016-07-13 00:15:48,968 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:close(684)) - Session: 0x155e19baa520026 closed
2016-07-13 00:15:48,968 INFO  [main-EventThread] zookeeper.ClientCnxn 
(ClientCnxn.java:run(512)) - EventThread shut down
2016-07-13 00:15:48,968 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
connection for client /127.0.0.1:38098 which had sessionid 0x155e19baa520026
2016-07-13 00:15:48,979 INFO  [main] zookeeper.RecoverableZooKeeper 
(RecoverableZooKeeper.java:<init>(120)) - Process 
identifier=hconnection-0x4596f8f3 connecting to ZooKeeper 
ensemble=localhost:53474
2016-07-13 00:15:48,979 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:<init>(438)) - Initiating client connection, 
connectString=localhost:53474 sessionTimeout=90000 
watcher=hconnection-0x4596f8f30x0, quorum=localhost:53474, baseZNode=/hbase
2016-07-13 00:15:48,980 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
connection to server localhost/127.0.0.1:53474. Will not attempt to 
authenticate using SASL (unknown error)
2016-07-13 00:15:48,981 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket connection 
established to localhost/127.0.0.1:53474, initiating session
2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
socket connection from /127.0.0.1:38100
2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
Client attempting to establish new session at /127.0.0.1:38100
2016-07-13 00:15:48,987 INFO  [SyncThread:0] server.ZooKeeperServer 
(ZooKeeperServer.java:finishSessionInit(617)) - Established session 
0x155e19baa520027 with negotiated timeout 40000 for client /127.0.0.1:38100
2016-07-13 00:15:48,988 INFO  [main-SendThread(localhost:53474)] 
zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
establishment complete on server localhost/127.0.0.1:53474, sessionid = 
0x155e19baa520027, negotiated timeout = 40000
2016-07-13 00:15:48,992 INFO  
[RpcServer.reader=2,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35470 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:49,001 INFO  
[RpcServer.reader=3,bindAddress=2588a1932efe,port=37493] hbase.Server 
(RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
port: 35472 with version info: version: "1.1.3" url: 
"git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
"72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
2016-07-13 00:15:49,010 INFO  [main] storage.HBaseTimelineReaderImpl 
(HBaseTimelineReaderImpl.java:serviceStop(64)) - closing the hbase Connection
2016-07-13 00:15:49,010 INFO  [main] 
client.ConnectionManager$HConnectionImplementation 
(ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
sessionid=0x155e19baa520025
2016-07-13 00:15:49,011 INFO  [ProcessThread(sid:0 cport:-1):] 
server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
Processed session termination for sessionid: 0x155e19baa520025
2016-07-13 00:15:49,021 INFO  [main] zookeeper.ZooKeeper 
(ZooKeeper.java:close(684)) - Session: 0x155e19baa520025 closed
2016-07-13 00:15:49,021 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
connection for client /127.0.0.1:38097 which had sessionid 0x155e19baa520025
2016-07-13 00:15:49,021 INFO  [main-EventThread] zookeeper.ClientCnxn 
(ClientCnxn.java:run(512)) - EventThread shut down
0.16 sec        1
{noformat}



> TestHBaseTimelineStorage. testWriteApplicationToHBase() fails intermittently
> ----------------------------------------------------------------------------
>
>                 Key: YARN-5379
>                 URL: https://issues.apache.org/jira/browse/YARN-5379
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: test, timelineserver
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Sangjin Lee
>            Priority: Minor
>
> The {{TestHBaseTimelineStorage. testWriteApplicationToHBase()}} test seems to 
> fail intermittently:
> {noformat}
> java.lang.AssertionError: null
>       at org.junit.Assert.fail(Assert.java:86)
>       at org.junit.Assert.assertTrue(Assert.java:41)
>       at org.junit.Assert.assertTrue(Assert.java:52)
>       at 
> org.apache.hadoop.yarn.server.timelineservice.storage.TestHBaseTimelineStorage.testWriteApplicationToHBase(TestHBaseTimelineStorage.java:817)
> {noformat}
> The stdout output:
> {noformat}
> 2016-07-13 00:15:48,883 INFO  [main] zookeeper.RecoverableZooKeeper 
> (RecoverableZooKeeper.java:<init>(120)) - Process 
> identifier=hconnection-0x2b7962a2 connecting to ZooKeeper 
> ensemble=localhost:53474
> 2016-07-13 00:15:48,883 INFO  [main] zookeeper.ZooKeeper 
> (ZooKeeper.java:<init>(438)) - Initiating client connection, 
> connectString=localhost:53474 sessionTimeout=90000 
> watcher=hconnection-0x2b7962a20x0, quorum=localhost:53474, baseZNode=/hbase
> 2016-07-13 00:15:48,886 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
> connection to server localhost/127.0.0.1:53474. Will not attempt to 
> authenticate using SASL (unknown error)
> 2016-07-13 00:15:48,887 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket 
> connection established to localhost/127.0.0.1:53474, initiating session
> 2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
> socket connection from /127.0.0.1:38097
> 2016-07-13 00:15:48,887 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
> Client attempting to establish new session at /127.0.0.1:38097
> 2016-07-13 00:15:48,896 INFO  [SyncThread:0] server.ZooKeeperServer 
> (ZooKeeperServer.java:finishSessionInit(617)) - Established session 
> 0x155e19baa520025 with negotiated timeout 40000 for client /127.0.0.1:38097
> 2016-07-13 00:15:48,896 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
> establishment complete on server localhost/127.0.0.1:53474, sessionid = 
> 0x155e19baa520025, negotiated timeout = 40000
> 2016-07-13 00:15:48,911 INFO  [main] zookeeper.RecoverableZooKeeper 
> (RecoverableZooKeeper.java:<init>(120)) - Process 
> identifier=hconnection-0x32130e61 connecting to ZooKeeper 
> ensemble=localhost:53474
> 2016-07-13 00:15:48,912 INFO  [main] zookeeper.ZooKeeper 
> (ZooKeeper.java:<init>(438)) - Initiating client connection, 
> connectString=localhost:53474 sessionTimeout=90000 
> watcher=hconnection-0x32130e610x0, quorum=localhost:53474, baseZNode=/hbase
> 2016-07-13 00:15:48,917 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
> connection to server localhost/127.0.0.1:53474. Will not attempt to 
> authenticate using SASL (unknown error)
> 2016-07-13 00:15:48,918 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
> socket connection from /127.0.0.1:38098
> 2016-07-13 00:15:48,921 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket 
> connection established to localhost/127.0.0.1:53474, initiating session
> 2016-07-13 00:15:48,921 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
> Client attempting to establish new session at /127.0.0.1:38098
> 2016-07-13 00:15:48,929 INFO  [SyncThread:0] server.ZooKeeperServer 
> (ZooKeeperServer.java:finishSessionInit(617)) - Established session 
> 0x155e19baa520026 with negotiated timeout 40000 for client /127.0.0.1:38098
> 2016-07-13 00:15:48,929 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
> establishment complete on server localhost/127.0.0.1:53474, sessionid = 
> 0x155e19baa520026, negotiated timeout = 40000
> 2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(541)) - closing the entity table
> 2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(546)) - closing the app_flow table
> 2016-07-13 00:15:48,938 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(551)) - closing the application 
> table
> 2016-07-13 00:15:48,941 INFO  
> [RpcServer.reader=1,bindAddress=2588a1932efe,port=37493] hbase.Server 
> (RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
> port: 35467 with version info: version: "1.1.3" url: 
> "git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
> "72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
> 18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
> 2016-07-13 00:15:48,950 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(555)) - closing the flow run table
> 2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(560)) - closing the 
> flowActivityTable table
> 2016-07-13 00:15:48,957 INFO  [main] storage.HBaseTimelineWriterImpl 
> (HBaseTimelineWriterImpl.java:serviceStop(565)) - closing the hbase Connection
> 2016-07-13 00:15:48,958 INFO  [main] 
> client.ConnectionManager$HConnectionImplementation 
> (ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
> sessionid=0x155e19baa520026
> 2016-07-13 00:15:48,958 INFO  [ProcessThread(sid:0 cport:-1):] 
> server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
> Processed session termination for sessionid: 0x155e19baa520026
> 2016-07-13 00:15:48,968 INFO  [main] zookeeper.ZooKeeper 
> (ZooKeeper.java:close(684)) - Session: 0x155e19baa520026 closed
> 2016-07-13 00:15:48,968 INFO  [main-EventThread] zookeeper.ClientCnxn 
> (ClientCnxn.java:run(512)) - EventThread shut down
> 2016-07-13 00:15:48,968 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
> connection for client /127.0.0.1:38098 which had sessionid 0x155e19baa520026
> 2016-07-13 00:15:48,979 INFO  [main] zookeeper.RecoverableZooKeeper 
> (RecoverableZooKeeper.java:<init>(120)) - Process 
> identifier=hconnection-0x4596f8f3 connecting to ZooKeeper 
> ensemble=localhost:53474
> 2016-07-13 00:15:48,979 INFO  [main] zookeeper.ZooKeeper 
> (ZooKeeper.java:<init>(438)) - Initiating client connection, 
> connectString=localhost:53474 sessionTimeout=90000 
> watcher=hconnection-0x4596f8f30x0, quorum=localhost:53474, baseZNode=/hbase
> 2016-07-13 00:15:48,980 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:logStartConnect(975)) - Opening socket 
> connection to server localhost/127.0.0.1:53474. Will not attempt to 
> authenticate using SASL (unknown error)
> 2016-07-13 00:15:48,981 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:primeConnection(852)) - Socket 
> connection established to localhost/127.0.0.1:53474, initiating session
> 2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.NIOServerCnxnFactory (NIOServerCnxnFactory.java:run(197)) - Accepted 
> socket connection from /127.0.0.1:38100
> 2016-07-13 00:15:48,981 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.ZooKeeperServer (ZooKeeperServer.java:processConnectRequest(868)) - 
> Client attempting to establish new session at /127.0.0.1:38100
> 2016-07-13 00:15:48,987 INFO  [SyncThread:0] server.ZooKeeperServer 
> (ZooKeeperServer.java:finishSessionInit(617)) - Established session 
> 0x155e19baa520027 with negotiated timeout 40000 for client /127.0.0.1:38100
> 2016-07-13 00:15:48,988 INFO  [main-SendThread(localhost:53474)] 
> zookeeper.ClientCnxn (ClientCnxn.java:onConnected(1235)) - Session 
> establishment complete on server localhost/127.0.0.1:53474, sessionid = 
> 0x155e19baa520027, negotiated timeout = 40000
> 2016-07-13 00:15:48,992 INFO  
> [RpcServer.reader=2,bindAddress=2588a1932efe,port=37493] hbase.Server 
> (RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
> port: 35470 with version info: version: "1.1.3" url: 
> "git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
> "72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
> 18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
> 2016-07-13 00:15:49,001 INFO  
> [RpcServer.reader=3,bindAddress=2588a1932efe,port=37493] hbase.Server 
> (RpcServer.java:processConnectionHeader(1678)) - Connection from 172.17.0.3 
> port: 35472 with version info: version: "1.1.3" url: 
> "git://diocles.local/Volumes/hbase-1.1.3RC1/hbase" revision: 
> "72bc50f5fafeb105b2139e42bbee3d61ca724989" user: "ndimiduk" date: "Sat Jan 16 
> 18:31:39 PST 2016" src_checksum: "72c910d76fba182fa4e3c7e048275ca3"
> 2016-07-13 00:15:49,010 INFO  [main] storage.HBaseTimelineReaderImpl 
> (HBaseTimelineReaderImpl.java:serviceStop(64)) - closing the hbase Connection
> 2016-07-13 00:15:49,010 INFO  [main] 
> client.ConnectionManager$HConnectionImplementation 
> (ConnectionManager.java:closeZooKeeperWatcher(1677)) - Closing zookeeper 
> sessionid=0x155e19baa520025
> 2016-07-13 00:15:49,011 INFO  [ProcessThread(sid:0 cport:-1):] 
> server.PrepRequestProcessor (PrepRequestProcessor.java:pRequest2Txn(494)) - 
> Processed session termination for sessionid: 0x155e19baa520025
> 2016-07-13 00:15:49,021 INFO  [main] zookeeper.ZooKeeper 
> (ZooKeeper.java:close(684)) - Session: 0x155e19baa520025 closed
> 2016-07-13 00:15:49,021 INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:53474] 
> server.NIOServerCnxn (NIOServerCnxn.java:closeSock(1007)) - Closed socket 
> connection for client /127.0.0.1:38097 which had sessionid 0x155e19baa520025
> 2016-07-13 00:15:49,021 INFO  [main-EventThread] zookeeper.ClientCnxn 
> (ClientCnxn.java:run(512)) - EventThread shut down
> {noformat}



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