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Posted to issues@hbase.apache.org by "Mikhail Antonov (JIRA)" <ji...@apache.org> on 2017/01/03 01:09:58 UTC
[jira] [Updated] (HBASE-17058) Lower epsilon used for jitter
verification from HBASE-15324
[ https://issues.apache.org/jira/browse/HBASE-17058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mikhail Antonov updated HBASE-17058:
------------------------------------
Fix Version/s: (was: 1.3.1)
1.3.0
> Lower epsilon used for jitter verification from HBASE-15324
> -----------------------------------------------------------
>
> Key: HBASE-17058
> URL: https://issues.apache.org/jira/browse/HBASE-17058
> Project: HBase
> Issue Type: Bug
> Components: Compaction
> Affects Versions: 2.0.0, 1.3.0, 1.4.0, 1.1.7, 1.2.4
> Reporter: Esteban Gutierrez
> Assignee: Esteban Gutierrez
> Fix For: 2.0.0, 1.3.0, 1.4.0, 1.2.5, 1.1.8
>
> Attachments: HBASE-17058.master.001.patch
>
>
> The current epsilon used is 1E-6 and its too big it might overflow the desiredMaxFileSize. A trivial fix is to lower the epsilon to 2^-52 or even 2^-53. An option to consider too is just to shift the jitter to always decrement hbase.hregion.max.filesize (MAX_FILESIZE) instead of increase the size of the region and having to deal with the round off.
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