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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7413) Convert WAL to pb
Date Fri, 26 Apr 2013 00:10:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13642406#comment-13642406

Sergey Shelukhin commented on HBASE-7413:

Questions from r that may be universally interesting:
- migration. Code to read old WALs is preserved (there's even a tests for that). Anything
that is not explicitly recognized as new PB WAL (via magic at the start of the file) will
be read using the old reader.
- perf. I ran I highly unscientific local perf test some time ago via HLogPerformanceEvaluation
and it showed on par/improved perf. I will try on HDFS sometime soon.
> Convert WAL to pb
> -----------------
>                 Key: HBASE-7413
>                 URL: https://issues.apache.org/jira/browse/HBASE-7413
>             Project: HBase
>          Issue Type: Sub-task
>          Components: wal
>            Reporter: stack
>            Assignee: Sergey Shelukhin
>            Priority: Critical
>             Fix For: 0.95.1
>         Attachments: HBASE-7413-v0.patch, HBASE-7413-v1.patch, HBASE-7413-v2.patch, HBASE-7413-v3.patch,
> From HBASE-7201

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