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https://issues.apache.org/jira/browse/HBASE-20401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16550155#comment-16550155
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Reid Chan commented on HBASE-20401:
-----------------------------------
Can the RN be more user friendly?
Those who doesn't read source code may feel hard to understand what those
configurations are for and tune them for what..
Here is mine (as reference, it will be good if you have better),
{code}
When oldwals(hfile) cleaner cleans stale wals(hfiles), it will periodically
check and wait the clean results from filesystem, the total wait time will be
no more than a max time.
The periodically wait and check configurations are ...
The max time configurations are ...
All support dynamic configuration.
...(Then here it is your tuning advice, please get rid of any code reference)...
{code}
> Make `MAX_WAIT` and `waitIfNotFinished` in CleanerContext configurable
> ----------------------------------------------------------------------
>
> Key: HBASE-20401
> URL: https://issues.apache.org/jira/browse/HBASE-20401
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 3.0.0, 1.5.0, 2.0.0-beta-1, 1.4.4, 2.0.0
> Reporter: Tak Lon (Stephen) Wu
> Assignee: Tak Lon (Stephen) Wu
> Priority: Minor
> Labels: beginner
> Attachments: HBASE-20401.branch-1.001.patch,
> HBASE-20401.master.001.patch, HBASE-20401.master.002.patch,
> HBASE-20401.master.003.patch, HBASE-20401.master.004.patch,
> HBASE-20401.master.005.patch
>
>
> When backporting HBASE-18309 in HBASE-20352, the deleteFiles calls
> CleanerContext.java#getResult with a waitIfNotFinished timeout to wait for
> notification (notify) from the fs.delete file thread. there might be two
> situation need to tune the MAX_WAIT in CleanerContext or waitIfNotFinished
> when LogClearner call getResult.
> # fs.delete never complete (strange but possible), then we need to wait for
> a max of 60 seconds. here, 60 seconds might be too long
> # getResult is waiting in the period of 500 milliseconds, but the fs.delete
> has completed and setFromClear is set but yet notify(). one might want to
> tune this 500 milliseconds to 200 or less .
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