[jira] Updated: (HBASE-3417) CacheOnWrite is using the temporary output path for block names, need to use a more consistent block naming scheme

["Jonathan Gray (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-3417?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Gray updated HBASE-3417:
---------------------------------

    Attachment: HBASE-3417-v1.patch

Changes storefile names to be UUIDs.  Makes it so we use the same name for the tmp file and the permanent file.  Updates a regex which now matches against 32 char word string instead of digits.  Changes HFile to use the file name for block cache block names rather than full path.

> CacheOnWrite is using the temporary output path for block names, need to use a more consistent block naming scheme
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-3417
>                 URL: https://issues.apache.org/jira/browse/HBASE-3417
>             Project: HBase
>          Issue Type: Bug
>          Components: io, regionserver
>    Affects Versions: 0.92.0
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.92.0
>
>         Attachments: HBASE-3417-v1.patch
>
>
> Currently the block names used in the block cache are built using the filesystem path.  However, for cache on write, the path is a temporary output file.
> The original COW patch actually made some modifications to block naming stuff to make it more consistent but did not do enough.  Should add a separate method somewhere for generating block names using some more easily mocked scheme (rather than just raw path as we generate a random unique file name twice, once for tmp and then again when moved into place).

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