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https://issues.apache.org/jira/browse/HBASE-19528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353118#comment-16353118
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stack commented on HBASE-19528:
-------------------------------
Failures are compiling thrift... Have seen them before. Unrelated to hadoop...
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-install-plugin:2.5.2:install (default-install)
on project hbase-thrift: Failed to install metadata
org.apache.hbase:hbase-thrift:3.0.0-SNAPSHOT/maven-metadata.xml: Could not
parse metadata
/home/jenkins/.m2/repository/org/apache/hbase/hbase-thrift/3.0.0-SNAPSHOT/maven-metadata-local.xml:
in epilog non whitespace content is not allowed but got / (position: END_TAG
seen ...</metadata>\n/... @25:2) -> [Help 1]
But it passed for the versions that failed with this patch.
Let me try again.
> 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.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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