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https://issues.apache.org/jira/browse/HIVE-25346?focusedWorklogId=636842&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-636842
]
ASF GitHub Bot logged work on HIVE-25346:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Aug/21 10:08
Start Date: 11/Aug/21 10:08
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on pull request #2547:
URL: https://github.com/apache/hive/pull/2547#issuecomment-896692730
> > > > Would be great if you could run the HMS benchmark and see if that
has affected the commit step performance. See if the index on opType improves
the situation.
> > >
> > >
> > > There is no benchmark currently for the commitTxn() call.
> >
> >
> > Could we create one or at least perform similar to
https://issues.apache.org/jira/browse/HIVE-23104?focusedCommentId=17083005&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17083005
test?
>
> Based on the linked comment it is not clear to me what exactly was tested
and how or what tools were used for it or what environment the tests were run
in. I found no mention of the above details in the jira comments.
You are not limited in a set of tools or approaches, free to choose any.
This patch changes the way how INSERTs are handled at the commit step, so it
would make sense to test the throughput of INSERT/UPDATE operations in
multithreaded env.
AFAIK in the above JIRA JMH tool was used and testing was done on a local
env.
We cannot merge this PR until we know the performance effect of the proposed
change.
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Issue Time Tracking
-------------------
Worklog Id: (was: 636842)
Time Spent: 4.5h (was: 4h 20m)
> cleanTxnToWriteIdTable breaks SNAPSHOT isolation
> ------------------------------------------------
>
> Key: HIVE-25346
> URL: https://issues.apache.org/jira/browse/HIVE-25346
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Chovan
> Assignee: Zoltan Chovan
> Priority: Major
> Labels: pull-request-available
> Time Spent: 4.5h
> Remaining Estimate: 0h
>
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