[
https://issues.apache.org/jira/browse/IMPALA-7450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16773658#comment-16773658
]
ASF subversion and git services commented on IMPALA-7450:
---------------------------------------------------------
Commit 540278d57f9d44917c47ea070169c084cdf6dd61 in impala's branch
refs/heads/master from Todd Lipcon
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=540278d ]
IMPALA-7450. Set thread name during refresh/load operations
This adds a small utility class for annotating the current thread's name
during potentially long-running operations such as refresh/load. With
this change, jstack output now includes useful thread names like:
During startup:
"main [invalidating metadata - 128/428 dbs complete]"
While loading a fresh table:
"pool-4-thread-12 [Loading metadata for: foo_db.foo_table] [Loading
metadata for all partition(s) of foo_db.foo_table]"
Pool refreshing metadata for a particular path:
"pool-23-thread-5 [Refreshing file metadata for path:
hdfs://nameservice1/path/to/partdir..."
Tests: Verified the patch manually by jstacking a catalogd while performing
some workload. Also added a simple unit test to verify the thread renaming
behavior.
Change-Id: Ic7c850d6bb2eedc375ee567c19eb17add335f60c
Reviewed-on: http://gerrit.cloudera.org:8080/11228
Reviewed-by: Bharath Vissapragada <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> catalogd should use thread names to make jstack more readable
> -------------------------------------------------------------
>
> Key: IMPALA-7450
> URL: https://issues.apache.org/jira/browse/IMPALA-7450
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Major
> Labels: supportability
>
> Currently when long refresh or DDL operations are being processed, it's hard
> to understand what's going on when looking at a jstack. We should have such
> potentially-long-running operations temporarily modify the current thread's
> name to indicate what action is being taken so we can debug more easily.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
