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https://issues.apache.org/jira/browse/HIVE-13960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15340617#comment-15340617
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Thejas M Nair edited comment on HIVE-13960 at 6/20/16 11:00 PM:
----------------------------------------------------------------
Thanks for the patch [~zxu] and [~jxiang]
>From the variable name pendingCount, its hard to understand what it
>represents. Should we name it activeCalls (or something on that lines) instead
>?
If you agree, the change can be done in a follow up jira.
was (Author: thejas):
Thanks for the patch [~zxu] and [~jxiang]
>From the variable name pendingCount, its hard to understand what it
>represents. Should we name it activeCalls instead ?
If you agree, the change can be done in a follow up jira.
> Session timeout may happen before HIVE_SERVER2_IDLE_SESSION_TIMEOUT for
> back-to-back synchronous operations.
> ------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-13960
> URL: https://issues.apache.org/jira/browse/HIVE-13960
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Reporter: zhihai xu
> Assignee: zhihai xu
> Fix For: 2.2.0
>
> Attachments: HIVE-13960.000.patch
>
>
> Session timeout may happen before
> HIVE_SERVER2_IDLE_SESSION_TIMEOUT(hive.server2.idle.session.timeout) for
> back-to-back synchronous operations.
> This issue can happen with the following two operations op1 and op2: op2 is a
> synchronous long running operation, op2 is running right after op1 is closed.
>
> 1. closeOperation(op1) is called:
> this will set {{lastIdleTime}} with value System.currentTimeMillis() because
> {{opHandleSet}} becomes empty after {{closeOperation}} remove op1 from
> {{opHandleSet}}.
> 2. op2 is running for long time by calling {{executeStatement}} right after
> closeOperation(op1) is called.
> If op2 is running for more than HIVE_SERVER2_IDLE_SESSION_TIMEOUT, then the
> session will timeout even when op2 is still running.
> We hit this issue when we use PyHive to execute non-async operation
> The following is the exception we see:
> {code}
> File "/usr/local/lib/python2.7/dist-packages/pyhive/hive.py", line 126, in
> close
> _check_status(response)
> File "/usr/local/lib/python2.7/dist-packages/pyhive/hive.py", line 362, in
> _check_status
> raise OperationalError(response)
> OperationalError: TCloseSessionResp(status=TStatus(errorCode=0,
> errorMessage='Session does not exist!', sqlState=None,
> infoMessages=['*org.apache.hive.service.cli.HiveSQLException:Session does not
> exist!:12:11',
> 'org.apache.hive.service.cli.session.SessionManager:closeSession:SessionManager.java:311',
> 'org.apache.hive.service.cli.CLIService:closeSession:CLIService.java:221',
> 'org.apache.hive.service.cli.thrift.ThriftCLIService:CloseSession:ThriftCLIService.java:471',
>
> 'org.apache.hive.service.cli.thrift.TCLIService$Processor$CloseSession:getResult:TCLIService.java:1273',
>
> 'org.apache.hive.service.cli.thrift.TCLIService$Processor$CloseSession:getResult:TCLIService.java:1258',
> 'org.apache.thrift.ProcessFunction:process:ProcessFunction.java:39',
> 'org.apache.thrift.TBaseProcessor:process:TBaseProcessor.java:39',
> 'org.apache.hive.service.auth.TSetIpAddressProcessor:process:TSetIpAddressProcessor.java:56',
>
> 'org.apache.thrift.server.TThreadPoolServer$WorkerProcess:run:TThreadPoolServer.java:285',
>
> 'java.util.concurrent.ThreadPoolExecutor:runWorker:ThreadPoolExecutor.java:1145',
>
> 'java.util.concurrent.ThreadPoolExecutor$Worker:run:ThreadPoolExecutor.java:615',
> 'java.lang.Thread:run:Thread.java:745'], statusCode=3))
> TCloseSessionResp(status=TStatus(errorCode=0, errorMessage='Session does not
> exist!', sqlState=None,
> infoMessages=['*org.apache.hive.service.cli.HiveSQLException:Session does not
> exist!:12:11',
> 'org.apache.hive.service.cli.session.SessionManager:closeSession:SessionManager.java:311',
> 'org.apache.hive.service.cli.CLIService:closeSession:CLIService.java:221',
> 'org.apache.hive.service.cli.thrift.ThriftCLIService:CloseSession:ThriftCLIService.java:471',
>
> 'org.apache.hive.service.cli.thrift.TCLIService$Processor$CloseSession:getResult:TCLIService.java:1273',
>
> 'org.apache.hive.service.cli.thrift.TCLIService$Processor$CloseSession:getResult:TCLIService.java:1258',
> 'org.apache.thrift.ProcessFunction:process:ProcessFunction.java:39',
> 'org.apache.thrift.TBaseProcessor:process:TBaseProcessor.java:39',
> 'org.apache.hive.service.auth.TSetIpAddressProcessor:process:TSetIpAddressProcessor.java:56',
>
> 'org.apache.thrift.server.TThreadPoolServer$WorkerProcess:run:TThreadPoolServer.java:285',
>
> 'java.util.concurrent.ThreadPoolExecutor:runWorker:ThreadPoolExecutor.java:1145',
>
> 'java.util.concurrent.ThreadPoolExecutor$Worker:run:ThreadPoolExecutor.java:615',
> 'java.lang.Thread:run:Thread.java:745'], statusCode=3))
> {code}
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