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https://issues.apache.org/jira/browse/HBASE-19528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353369#comment-16353369
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stack commented on HBASE-19528:
-------------------------------
I call the above a green build. The test failure is unrelated and the three
hadoop fails are different to the original set and looking in logs are the
thrift fetch issue, not hadoop compile... One more run while we're sleeping...
> Major Compaction Tool
> ----------------------
>
> Key: HBASE-19528
> URL: https://issues.apache.org/jira/browse/HBASE-19528
> Project: HBase
> Issue Type: New Feature
> Reporter: churro morales
> Assignee: churro morales
> Priority: Major
> Fix For: 2.0.0-beta-2
>
> Attachments: 0001-HBASE-19528-Do-nothing-patch.patch,
> 0001-HBASE-19528-Do-nothing-patch.patch,
> 0001-HBASE-19528-Major-Compaction-Tool-ADDENDUM.patch,
> HBASE-19528.branch-1.patch, HBASE-19528.patch, HBASE-19528.v1.branch-1.patch,
> HBASE-19528.v1.patch, HBASE-19528.v2.branch-1 (1).patch,
> HBASE-19528.v2.branch-1 (1).patch, HBASE-19528.v2.branch-1.patch,
> HBASE-19528.v2.branch-1.patch, HBASE-19528.v2.branch-1.patch,
> HBASE-19528.v2.branch-1.patch, HBASE-19528.v8.patch
>
>
> The basic overview of how this tool works is:
> Parameters:
> Table
> Stores
> ClusterConcurrency
> Timestamp
> So you input a table, desired concurrency and the list of stores you wish to
> major compact. The tool first checks the filesystem to see which stores need
> compaction based on the timestamp you provide (default is current time). It
> takes that list of stores that require compaction and executes those requests
> concurrently with at most N distinct RegionServers compacting at a given
> time. Each thread waits for the compaction to complete before moving to the
> next queue. If a region split, merge or move happens this tool ensures those
> regions get major compacted as well.
> This helps us in two ways, we can limit how much I/O bandwidth we are using
> for major compaction cluster wide and we are guaranteed after the tool
> completes that all requested compactions complete regardless of moves, merges
> and splits.
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