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https://issues.apache.org/jira/browse/HIVE-16061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15949391#comment-15949391
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Aihua Xu commented on HIVE-16061:
---------------------------------
patch-3: switching to use Log4j2 RoutingAppender to automatically output the
log for each query into each individual file (operation log) and then it will
be picked up and delivered to the beeline. One change which is different from
existing OperationLog: the operation log file name now is /sessionId/queryId
instead of /sessionId/operationHandle. Seems it's better to use queryId since
operationHandle is completely internal and also we are using queryId in the
other log places.
> When hive.async.log.enabled is set to true, some output is not printed to the
> beeline console
> ---------------------------------------------------------------------------------------------
>
> Key: HIVE-16061
> URL: https://issues.apache.org/jira/browse/HIVE-16061
> Project: Hive
> Issue Type: Bug
> Components: Logging
> Affects Versions: 2.1.1
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Attachments: HIVE-16061.1.patch, HIVE-16061.2.patch,
> HIVE-16061.3.patch
>
>
> Run a hiveserver2 instance "hive --service hiveserver2".
> Then from another console, connect to hiveserver2 "beeline -u
> "jdbc:hive2://localhost:10000"
> When you run a MR job like "select t1.key from src t1 join src t2 on
> t1.key=t2.key", some of the console logs like MR job info are not printed to
> the console while it just print to the hiveserver2 console.
> When hive.async.log.enabled is set to false and restarts the HiveServer2,
> then the output will be printed to the beeline console.
> OperationLog implementation uses the ThreadLocal variable to store associated
> the log file. When the hive.async.log.enabled is set to true, the logs will
> be processed by a ThreadPool and the actual threads from the pool which
> prints the message won't be able to access the log file stored in the
> original thread.
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