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Posted to issues@hbase.apache.org by "Matteo Bertozzi (JIRA)" <ji...@apache.org> on 2012/12/01 23:33:58 UTC
[jira] [Updated] (HBASE-7253) Compaction Tool
[ https://issues.apache.org/jira/browse/HBASE-7253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matteo Bertozzi updated HBASE-7253:
-----------------------------------
Attachment: HBASE-7253-v0.patch
> Compaction Tool
> ---------------
>
> Key: HBASE-7253
> URL: https://issues.apache.org/jira/browse/HBASE-7253
> Project: HBase
> Issue Type: New Feature
> Components: Compaction
> Affects Versions: 0.96.0
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Minor
> Fix For: 0.96.0
>
> Attachments: HBASE-7253-v0.patch
>
>
> In HBASE-5616, as part of the compaction code refactor, a CompactionTool was added.
> but there are some issues:
> * The tool is under test/
> * mockito is required, so the "test" scope should be removed from the pom.xml, otherwise the tool doesn't start
> * The mock, used by the tool, is mocking HRegion.getRegionInfo() but some code (Store) uses HRegion.regionInfo directly HStore.java#L2021, HStore.java#L1389, HStore.java#L1402 and you end up with a NPE in the tool.
> * The Mocked Store uses a dummy family and the compacted files doesn't get the same family properties specified (compression, encoding, ...)
> * at the end of compaction CompactionTool.java#L155, on by default, the compaction file is removed (note that the compacted one are already removed inside the store.compact()... and you end up with an empty dir, if you compact everything.
> I've fixed some stuff and added support to:
> * Run the compaction as a MR Job
> * Specify a Table (compact each region/family)
> * Specify a Region (compact each family)
> * Specify a Family (as before)
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