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https://issues.apache.org/jira/browse/HIVE-14521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15418052#comment-15418052
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Szehon Ho commented on HIVE-14521:
----------------------------------
Sorry never mind, read access by TezJobMonitor should be ok as it doesnt create
a scope, hm..
> codahale metrics exceptions
> ---------------------------
>
> Key: HIVE-14521
> URL: https://issues.apache.org/jira/browse/HIVE-14521
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
>
> One some random setup, I see bazillions of errors like this in HS2 log, Gb-s
> of logs worth:
> {noformat}
> 2016-08-08 04:52:18,619 WARN [HiveServer2-Handler-Pool: Thread-101]:
> log.PerfLogger (PerfLogger.java:beginMetrics(226)) - Error recording metrics
> java.io.IOException: Scope named api_Driver.run is not closed, cannot be
> opened.
> at
> org.apache.hadoop.hive.common.metrics.metrics2.CodahaleMetrics$CodahaleMetricsScope.open(CodahaleMetrics.java:133)
> at
> org.apache.hadoop.hive.common.metrics.metrics2.CodahaleMetrics.startStoredScope(CodahaleMetrics.java:220)
> at
> org.apache.hadoop.hive.ql.log.PerfLogger.beginMetrics(PerfLogger.java:223)
> at
> org.apache.hadoop.hive.ql.log.PerfLogger.PerfLogBegin(PerfLogger.java:143)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:378)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:320)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1214)
> at
> org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1208)
> at
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:146)
> at
> org.apache.hive.service.cli.operation.SQLOperation.runInternal(SQLOperation.java:226)
> at
> org.apache.hive.service.cli.operation.Operation.run(Operation.java:276)
> at
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementInternal(HiveSessionImpl.java:468)
> at
> org.apache.hive.service.cli.session.HiveSessionImpl.executeStatementAsync(HiveSessionImpl.java:456)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> {noformat}
> I suspect that either, just like the metastore deadline, this needs better
> error handling when whatever the metrics surround fails; or, it is just not
> thread safe.
> But I actually haven't looked at the code yet.
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