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https://issues.apache.org/jira/browse/IMPALA-9008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16951827#comment-16951827
 ] 

ASF subversion and git services commented on IMPALA-9008:
---------------------------------------------------------

Commit f41a1887fd85f526d32ef917c3ba94c6902e7e98 in impala's branch 
refs/heads/master from Csaba Ringhofer
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=f41a188 ]

IMPALA-9008: Serialize Maven invocations to deflake query-event-hook-api

The previous commit for this Jira serialized the compilation of
shaded-deps and ext-data-source to fix flakiness. It looks like
this led to a new similar issue related to the parallel compilation
of ext-data-source and query-event-hook-api.

Similarly to the shaded-deps issue, I try to fix this by adding a
fictional dependency (query-event-hook-api -> yarn-extras) to serialize
the build.

Full Maven dependency graph:
fe -> query-event-hook-api -> yarn-extras -> ext-data-source ->
     shaded-deps-> impala-parent
The ordering of query-event-hook-apit, yarn-extras, ext-data-source,
and shaded-deps are arbitrary.

Change-Id: Ice0dfda5ee0ef60c9c208f05b0952555770fc090
Reviewed-on: http://gerrit.cloudera.org:8080/14423
Reviewed-by: Joe McDonnell <[email protected]>
Reviewed-by: Csaba Ringhofer <[email protected]>
Tested-by: Csaba Ringhofer <[email protected]>


> Building impala-minimal-hive-exec is flaky
> ------------------------------------------
>
>                 Key: IMPALA-9008
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9008
>             Project: IMPALA
>          Issue Type: Task
>          Components: Infrastructure
>            Reporter: Csaba Ringhofer
>            Assignee: Csaba Ringhofer
>            Priority: Major
>
> Building impala-minimal-hive-exec fails time to time while downloading one of 
> it's dependencies (Guava 14.0.1). In the mvn logs of failed builds 
> impala-minimal-hive-exec and ext-data-source were running in parallel, and 
> latter also downloads Guava 14.0.1. This lead me to assume that this is a 
> similar issue to IMPALA-7051. 



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