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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2019/07/01 21:27:00 UTC

[jira] [Updated] (HBASE-21981) MMaped bucket cache IOEngine does not work with persistence

     [ https://issues.apache.org/jira/browse/HBASE-21981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-21981:
--------------------------
    Fix Version/s:     (was: 2.1.6)
                       (was: 2.0.6)
                   2.1.7

> MMaped bucket cache IOEngine does not work with persistence
> -----------------------------------------------------------
>
>                 Key: HBASE-21981
>                 URL: https://issues.apache.org/jira/browse/HBASE-21981
>             Project: HBase
>          Issue Type: Bug
>          Components: BucketCache
>    Affects Versions: 2.1.3
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: Anoop Sam John
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 2.2.1, 2.1.7
>
>         Attachments: HBASE-21981.patch, HBASE-21981.patch
>
>
> The MMap based IOEngines does not retrieve the data back if 'hbase.bucketcache.persistent.path' is enabled. FileIOEngine works fine but only the FileMMapEngine has this problem.
> The reason is that we don't get the byte buffers in the proper order while reading back from the file in case of persistence.



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