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https://issues.apache.org/jira/browse/HBASE-4027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13089977#comment-13089977
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[email protected] commented on HBASE-4027:
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bq. On 2011-08-19 22:49:55, Todd Lipcon wrote:
bq. > src/main/java/org/apache/hadoop/hbase/io/hfile/Cacheable.java, line 55
bq. > <https://reviews.apache.org/r/1214/diff/17/?file=33818#file33818line55>
bq. >
bq. > does this always return itself? I still think that once something
has been serialized, we should throw away the original object, and when we
re-instantiate it, it should create a new object.
Fixed. Changed the interface.
bq. On 2011-08-19 22:49:55, Todd Lipcon wrote:
bq. > src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java, line 1467
bq. > <https://reviews.apache.org/r/1214/diff/17/?file=33821#file33821line1467>
bq. >
bq. > this object confuses me. once we've serialized something, all we
should need is the ByteBuffer.
Fixed it.
bq. On 2011-08-19 22:49:55, Todd Lipcon wrote:
bq. > src/main/java/org/apache/hadoop/hbase/io/hfile/HFileBlock.java, line 1518
bq. > <https://reviews.apache.org/r/1214/diff/17/?file=33821#file33821line1518>
bq. >
bq. > this isn't right - you need to take into account arrayOffset also. I
think this .equals method should move to the tests, or a static method like
blocksAndContentsEqual()
Fixed. Comparisons are done with if
(this.buf.compareTo(castedComparison.buf) != 0) { instead.
- Li
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This is an automatically generated e-mail. To reply, visit:
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On 2011-08-24 02:46:25, 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 2011-08-24 02:46:25)
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 bfd863e
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/CacheableDeserializer.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
ae75299
bq. src/main/java/org/apache/hadoop/hbase/io/hfile/SimpleBlockCache.java
7ce4f14
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
3efba7f
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-4027v13.1.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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