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https://issues.apache.org/jira/browse/HBASE-6371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487458#comment-13487458
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Hudson commented on HBASE-6371:
-------------------------------
Integrated in HBase-TRUNK #3499 (See
[https://builds.apache.org/job/HBase-TRUNK/3499/])
HBASE-7055 port HBASE-6371 tier-based compaction from 0.89-fb to trunk -
revert for further discussion (Revision 1403890)
Result = FAILURE
tedyu :
Files :
*
/hbase/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/HBaseConfiguration.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/HFileOutputFormat.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/CompactionConfiguration.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/CompactionManager.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/Compactor.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TierCompactionConfiguration.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/TierCompactionManager.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CompactSelection.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CompactionRequest.java
* /hbase/trunk/hbase-server/src/main/resources/hbase-compactions.xml
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestCompactSelection.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultCompactSelection.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestTierCompactSelection.java
> [89-fb] Tier based compaction
> -----------------------------
>
> Key: HBASE-6371
> URL: https://issues.apache.org/jira/browse/HBASE-6371
> Project: HBase
> Issue Type: Improvement
> Reporter: Akashnil
> Assignee: Liyin Tang
> Labels: noob
> Attachments: HBASE-6371-089fb-commit.patch
>
>
> Currently, the compaction selection is not very flexible and is not sensitive
> to the hotness of the data. Very old data is likely to be accessed less, and
> very recent data is likely to be in the block cache. Both of these
> considerations make it inefficient to compact these files as aggressively as
> other files. In some use-cases, the access-pattern is particularly obvious
> even though there is no way to control the compaction algorithm in those
> cases.
> In the new compaction selection algorithm, we plan to divide the candidate
> files into different levels according to oldness of the data that is present
> in those files. For each level, parameters like compaction ratio, minimum
> number of store-files in each compaction may be different. Number of levels,
> time-ranges, and parameters for each level will be configurable online on a
> per-column family basis.
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