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https://issues.apache.org/jira/browse/IMPALA-13134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17853329#comment-17853329
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ASF subversion and git services commented on IMPALA-13134:
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Commit bafd1903069163f38812d7fa42f9c4d2f7218fcf in impala's branch
refs/heads/master from wzhou-code
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=bafd19030 ]
IMPALA-13143: Fix flaky test_catalogd_failover_with_sync_ddl
The test_catalogd_failover_with_sync_ddl test which was added to
custom_cluster/test_catalogd_ha.py in IMPALA-13134 failed on s3.
The test relies on specific timing with a sleep injected via a
debug action so that the DDL query is still running when catalogd
failover is triggered. The failures were caused by slowly restarting
for catalogd on s3 so that the query finished before catalogd
failover was triggered.
This patch fixed the issue by increasing the sleep time for s3 builds
and other slow builds.
Testing:
- Ran the test 100 times in a loop on s3.
Change-Id: I15bb6aae23a2f544067f993533e322969372ebd5
Reviewed-on: http://gerrit.cloudera.org:8080/21491
Reviewed-by: Riza Suminto <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
> DDL hang with SYNC_DDL enabled when Catalogd is changed to standby status
> -------------------------------------------------------------------------
>
> Key: IMPALA-13134
> URL: https://issues.apache.org/jira/browse/IMPALA-13134
> Project: IMPALA
> Issue Type: Bug
> Components: Backend, Catalog
> Reporter: Wenzhe Zhou
> Assignee: Wenzhe Zhou
> Priority: Major
> Fix For: Impala 4.5.0
>
>
> Catalogd waits for SYNC_DDL version when it processes a DDL with SYNC_DDL
> enabled. If the status of Catalogd is changed from active to standby when
> CatalogServiceCatalog.waitForSyncDdlVersion() is called, the standby catalogd
> does not receive catalog topic updates from statestore. This causes catalogd
> thread waits indefinitely and DDL query hanging.
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