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From "jiraposter@reviews.apache.org (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4027) Enable direct byte buffers LruBlockCache
Date Fri, 19 Aug 2011 22:43:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13088038#comment-13088038
] 

jiraposter@reviews.apache.org commented on HBASE-4027:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1214/#review1573
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Ship it!


All tests passed based on hbase-4027v12.7.diff

- Ted


On 2011-08-19 20:21:35, Li Pi wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/1214/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2011-08-19 20:21:35)
bq.  
bq.  
bq.  Review request for hbase, Todd Lipcon, Ted Yu, Michael Stack, Jonathan Gray, and Li Pi.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Review request - I apparently can't edit tlipcon's earlier posting of my diff, so creating
a new one.
bq.  
bq.  
bq.  This addresses bug HBase-4027.
bq.      https://issues.apache.org/jira/browse/HBase-4027
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    conf/hbase-env.sh 2d55d27 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCache.java 2d4002c 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/CacheStats.java PRE-CREATION 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/Cacheable.java PRE-CREATION 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/CachedBlock.java 3b130d8 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/DoubleBlockCache.java PRE-CREATION 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java 097dc50 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java 1338453 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/SimpleBlockCache.java 886c31d 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/slab/SingleSizeCache.java PRE-CREATION

bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/slab/Slab.java PRE-CREATION 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/slab/SlabCache.java PRE-CREATION 
bq.    src/main/java/org/apache/hadoop/hbase/io/hfile/slab/SlabItemEvictionWatcher.java PRE-CREATION

bq.    src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java e2c6c93 
bq.    src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java 7b7bf73 
bq.    src/main/java/org/apache/hadoop/hbase/util/DirectMemoryUtils.java PRE-CREATION 
bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/CacheTestUtils.java PRE-CREATION 
bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/TestCachedBlockQueue.java 1ad2ece 
bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.java f0a9832 
bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/slab/TestSingleSizeCache.java PRE-CREATION

bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/slab/TestSlab.java PRE-CREATION 
bq.    src/test/java/org/apache/hadoop/hbase/io/hfile/slab/TestSlabCache.java PRE-CREATION

bq.    src/test/java/org/apache/hadoop/hbase/regionserver/TestMemStoreLAB.java d7e43a0 
bq.    src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java 4387170 
bq.  
bq.  Diff: https://reviews.apache.org/r/1214/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  Ran benchmarks against it in HBase standalone mode. Wrote test cases for all classes,
multithreaded test cases exist for the cache.
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Li
bq.  
bq.



> Enable direct byte buffers LruBlockCache
> ----------------------------------------
>
>                 Key: HBASE-4027
>                 URL: https://issues.apache.org/jira/browse/HBASE-4027
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jason Rutherglen
>            Assignee: Li Pi
>            Priority: Minor
>         Attachments: 4027-v5.diff, 4027v7.diff, HBase-4027 (1).pdf, HBase-4027.pdf, HBase4027v8.diff,
HBase4027v9.diff, hbase-4027-v10.5.diff, hbase-4027-v10.diff, hbase-4027v10.6.diff, hbase-4027v6.diff,
hbase4027v11.5.diff, hbase4027v11.6.diff, hbase4027v11.7.diff, hbase4027v11.diff, hbase4027v12.1.diff,
hbase4027v12.diff, slabcachepatch.diff, slabcachepatchv2.diff, slabcachepatchv3.1.diff, slabcachepatchv3.2.diff,
slabcachepatchv3.diff, slabcachepatchv4.5.diff, slabcachepatchv4.diff
>
>
> Java offers the creation of direct byte buffers which are allocated outside of the heap.
> They need to be manually free'd, which can be accomplished using an documented {{clean}}
method.
> The feature will be optional.  After implementing, we can benchmark for differences in
speed and garbage collection observances.

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