[
https://issues.apache.org/jira/browse/HBASE-3160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925616#action_12925616
]
HBase Review Board commented on HBASE-3160:
-------------------------------------------
Message from: "Nicolas" <[email protected]>
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://review.cloudera.org/r/1103/
-----------------------------------------------------------
Review request for hbase.
Summary
-------
Switch to more intelligent priority metric: blockingSize -
max(len(s.storefiles) for s in region.stores) . This will allow us to better
prioritize, give us faster responsiveness to users, and feel more cavalier
about issuing new compaction requests. Note that we also found/fixed a major
compaction downgrade bug while writing this code.
This addresses bug HBASE-3160.
http://issues.apache.org/jira/browse/HBASE-3160
Diffs
-----
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/CompactSplitThread.java
1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/CompactionRequestor.java
1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java 1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.java
1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/PriorityCompactionQueue.java
1027787
trunk/src/main/java/org/apache/hadoop/hbase/regionserver/Store.java 1027787
trunk/src/test/java/org/apache/hadoop/hbase/regionserver/TestPriorityCompactionQueue.java
1027787
Diff: http://review.cloudera.org/r/1103/diff
Testing
-------
mvn clean install -Dtest=TestPriorityCompaction
dev cluster tests (on 0.89)
Thanks,
Nicolas
> Compactions: Use more intelligent priorities for PriorityCompactionQueue
> ------------------------------------------------------------------------
>
> Key: HBASE-3160
> URL: https://issues.apache.org/jira/browse/HBASE-3160
> Project: HBase
> Issue Type: Improvement
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
>
> One of the problems with the current compaction queue is that we have a very
> low granularity on the importance of the various compactions in the queue.
> If a StoreFile count exceeds 15 files, only then do we bump via enum change.
> We should instead look into more intelligent, granular priority metrics for
> choosing the next compaction.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
