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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7339) Splitting a hfilelink causes region servers to go down.
Date Wed, 12 Dec 2012 20:08:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Hsieh updated HBASE-7339:
----------------------------------

    Description: 
Steps:
- Have a single region table with 15 hfiles in it.
- Snapshot it. (was done using online snapshot from HBASE-7321)
- Clone a snapshot 
- region post-open task attempts to compact region.  policy does not compact all files. (default
seems to be 10)
- after compaction we have hfile links and real hfiles mixed in the region
- it starts splitting
- creating split references, opening daughers fails 
- hfile links are "split", creating hfile link daughter refs.  {{<<hfile>\-<region>\-<table>>.<parentregion>}}
- these "split" hfile links are interpreted as hfile links with table {{<table>.<parentregion>}}
-> {{<<hfile>\-<region>>\-<<table>.<parentregion>>}}
 (groupings interpreted incorrectly)
- Since this is after the splitting PONR, this aborts the server.  It then spreads to the
next server.

  was:

Steps:
- Have a single region table 15 hfiles in it.
- Snapshot it.
- Clone a snapshot 
- region post-open task attempts to compact region.  policy does not compact all files. (default
seems to be 10)
- after compaction we have hfile links and real hfiles mixed.
- it starts splitting
- creating split references, opening daughers fails 
- hfile links are "split", creating hfile link daughter refs.  <<hfile>-<region>-<table>>.<parentregion>
- these "split" hfile links are interpreted as hfile links with table <table>.<parentregion>
- Since this is after the splitting PONR, this aborts the server.  It then spreads to the
next server.

    
> Splitting a hfilelink causes region servers to go down.
> -------------------------------------------------------
>
>                 Key: HBASE-7339
>                 URL: https://issues.apache.org/jira/browse/HBASE-7339
>             Project: HBase
>          Issue Type: Sub-task
>          Components: snapshots
>    Affects Versions: hbase-6055
>            Reporter: Jonathan Hsieh
>            Assignee: Jonathan Hsieh
>            Priority: Blocker
>             Fix For: hbase-6055
>
>
> Steps:
> - Have a single region table with 15 hfiles in it.
> - Snapshot it. (was done using online snapshot from HBASE-7321)
> - Clone a snapshot 
> - region post-open task attempts to compact region.  policy does not compact all files.
(default seems to be 10)
> - after compaction we have hfile links and real hfiles mixed in the region
> - it starts splitting
> - creating split references, opening daughers fails 
> - hfile links are "split", creating hfile link daughter refs.  {{<<hfile>\-<region>\-<table>>.<parentregion>}}
> - these "split" hfile links are interpreted as hfile links with table {{<table>.<parentregion>}}
-> {{<<hfile>\-<region>>\-<<table>.<parentregion>>}}
 (groupings interpreted incorrectly)
> - Since this is after the splitting PONR, this aborts the server.  It then spreads to
the next server.

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