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deepankar commented on HBASE-16630:
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Thanks guys for pushing this and dealing with my errors and
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.2-JDK7 #111 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.2-JDK8 #106 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.2-IT #844 (See
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ramkrishna.s.vasudevan commented on HBASE-16630:
[~dvdreddy]
You want me prepare a patch
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.3-JDK8 #129 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.4 #653 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.3-JDK7 #118 (See
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ramkrishna.s.vasudevan commented on HBASE-16630:
I corrected the patch subject manually
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.3-JDK7 #117 (See
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Hudson commented on HBASE-16630:
FAILURE: Integrated in Jenkins build HBase-1.2-IT #608 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.4 #652 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.3-JDK8 #128 (See
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ramkrishna.s.vasudevan commented on HBASE-16630:
There are no compilation issues now.
>
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ramkrishna.s.vasudevan commented on HBASE-16630:
[~dvdreddy]
I think the patch name
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.2-JDK7 #109 (See
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.2-JDK8 #103 (See
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deepankar commented on HBASE-16630:
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Sorry guys I forgot to check for compilation and other minor
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-1.3-IT #841 (See
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ramkrishna.s.vasudevan commented on HBASE-16630:
Reverted from branch-1 and branch-3.
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Sean Busbey commented on HBASE-16630:
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reverted from branch-1.2 because it caused a compilation
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ramkrishna.s.vasudevan commented on HBASE-16630:
[~dvdreddy]
There is a compilation
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Hudson commented on HBASE-16630:
FAILURE: Integrated in Jenkins build HBase-1.3-JDK7 #116 (See
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deepankar commented on HBASE-16630:
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Created HBASE-17711 for tracking the addition of tests for this
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ramkrishna.s.vasudevan commented on HBASE-16630:
Pushed to branch-1, branch-1.2 and
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Hadoop QA commented on HBASE-16630:
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Hadoop QA commented on HBASE-16630:
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Hudson commented on HBASE-16630:
SUCCESS: Integrated in Jenkins build HBase-Trunk_matrix #2563 (See
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ramkrishna.s.vasudevan commented on HBASE-16630:
Pushed to master. Thanks for the patch
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ramkrishna.s.vasudevan commented on HBASE-16630:
Ok I can commit it.
> Fragmentation in
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Anoop Sam John commented on HBASE-16630:
Yep 1.2+ all branches can be the target.
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ramkrishna.s.vasudevan commented on HBASE-16630:
Which of the above patches should be
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ramkrishna.s.vasudevan commented on HBASE-16630:
+1 for commit to master and branch -
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Sean Busbey commented on HBASE-16630:
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seems fine for branch-1.2, but doesn't seem worth blocking
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stack commented on HBASE-16630:
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+1 Go for it.
Should it go into hbase-1.2.5 [~anoop.hbase]? [~busbey] FYI
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deepankar commented on HBASE-16630:
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About the unit test, I was busy past weeks trying to hunt down
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Anoop Sam John commented on HBASE-16630:
Looks good. Can we get this in now? Ping
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chunhui shen commented on HBASE-16630:
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[~dvdreddy]
The method of freeEntireBuckets should return
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chunhui shen commented on HBASE-16630:
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bq. If its harmless, why commit it (smile)?
I mean it's
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deepankar commented on HBASE-16630:
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Sorry I forgot about the unit test, will see If I hack get
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stack commented on HBASE-16630:
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bq. The patch is fine and would be harmless.
If its harmless, why commit
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chunhui shen commented on HBASE-16630:
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[~stack]
Our change about this which is mentioned in the
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stack commented on HBASE-16630:
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[~dvdreddy] And thanks for trying my suggestion though it sounds like it
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stack commented on HBASE-16630:
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[~dvdreddy] You think we should commit this last patch? Thanks.
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Ted Yu commented on HBASE-16630:
Planning to commit tomorrow morning if there is no more review comment.
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Ted Yu commented on HBASE-16630:
+1 from me as well.
> Fragmentation in long running Bucket Cache
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Ted Yu commented on HBASE-16630:
Ran TestAsyncTableBatch with patch locally and didn't reproduce test
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Hadoop QA commented on HBASE-16630:
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chunhui shen commented on HBASE-16630:
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seems fine for the latest patch, +1
> Fragmentation in long
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ramkrishna.s.vasudevan commented on HBASE-16630:
[~dvdreddy]
Thanks for the info. We can
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deepankar commented on HBASE-16630:
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Sorry for the late reply, I looked into Stack's suggestion and
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ramkrishna.s.vasudevan commented on HBASE-16630:
[~dvdreddy]
Do you have some time to
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deepankar commented on HBASE-16630:
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Yeah I am looking into stacks suggestion to counter the problem I
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Anoop Sam John commented on HBASE-16630:
We would like to enable BucketCache On by default for
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stack commented on HBASE-16630:
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[~dvdreddy] Could you use the 'smarter' algo from HBASE-15560
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Ted Yu commented on HBASE-16630:
bq. repeatedly eviciting the same blocks again
How about keeping last
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deepankar commented on HBASE-16630:
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Sorry for the delayed reply, the bucket cache is not stuck as
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Ted Yu commented on HBASE-16630:
Deepankar:
How was the patched version running in your cluster ?
Thanks
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Vladimir Rodionov commented on HBASE-16630:
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Yes, my bad. Somehow missed !
> Fragmentation
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Ted Yu commented on HBASE-16630:
{code}
+ Set candidateBuckets =
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Vladimir Rodionov commented on HBASE-16630:
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[~dvdreddy]
OK, I was not right - do not see any
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deepankar commented on HBASE-16630:
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Which map are you referring to [~vrodionov] , I am constructing a
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Anoop Sam John commented on HBASE-16630:
Is there a way we can get the possible candidates of
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Vladimir Rodionov commented on HBASE-16630:
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[~dvdreddy], memory requirements is very high.
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Ted Yu commented on HBASE-16630:
If you have time, do you mind trying patch v2 on a (test) cluster ?
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Ted Yu commented on HBASE-16630:
{code}
+// Add buckets with blocks currently in use
+for (Long
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deepankar commented on HBASE-16630:
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I used it predominently for limiting the number of buckets we
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Ted Yu commented on HBASE-16630:
{code}
+Set result = new HashSet<>(bucketCount);
+
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chunhui shen commented on HBASE-16630:
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1.Fix the issue that FreeSpace doesn't free anything
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deepankar commented on HBASE-16630:
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Yup looks like this is exactly what we want, the idea is to pick a
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Vladimir Rodionov commented on HBASE-16630:
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Google "slab calcification problem". This is
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deepankar commented on HBASE-16630:
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This is very good idea to make sure all the buckets have
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deepankar commented on HBASE-16630:
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Ha, nice point, I missed this, but this would still not guarantee,
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chunhui shen commented on HBASE-16630:
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Another thing to do :
In one BucketCache#FreeSpace round,
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chunhui shen commented on HBASE-16630:
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{code}
BucketCache#freeSpace
if (needFreeForExtra) {
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Anoop Sam John commented on HBASE-16630:
Ya that assert was just added as we always passed HBB at
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ramkrishna.s.vasudevan commented on HBASE-16630:
Nice find. Some simiilar issue was
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deepankar commented on HBASE-16630:
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It is moving data, but the storage of the data (i.e byte buffers )
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Vladimir Rodionov commented on HBASE-16630:
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{quote}
Defragmentation is the software one,
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deepankar commented on HBASE-16630:
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Commented on the comment above, SIGSEV should not be an issue as
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deepankar commented on HBASE-16630:
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The only problem is currently some IOEngines (Ex:-
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deepankar commented on HBASE-16630:
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This is correct, Defragmentation does not affect anything in the
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deepankar commented on HBASE-16630:
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I'll remove the full lock, essentially the lock is to make sure
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Vladimir Rodionov commented on HBASE-16630:
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How about block reads during defragmentation? I
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binlijin commented on HBASE-16630:
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So it will affect flushing the RAM cache to IOEngine.
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Vladimir Rodionov commented on HBASE-16630:
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It requires full cache lock?
> Fragmentation in
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Vladimir Rodionov commented on HBASE-16630:
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How about offheap read support? Does it include
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binlijin commented on HBASE-16630:
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If i am not wrong, the Defragmentation is done by WriterThread,
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Vladimir Rodionov commented on HBASE-16630:
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Defragmentation is hard. (Full GC is an example).
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binlijin commented on HBASE-16630:
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Looks like there is extra copy in deFragment, can we reduce it?
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Ted Yu commented on HBASE-16630:
{code}
+ float nonZeroUsedCount = 0.0f, nonZeroFreeCount = 0.0f;
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binlijin commented on HBASE-16630:
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Nice findingļ¼
> Fragmentation in long running Bucket Cache
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deepankar commented on HBASE-16630:
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ping [~stack], [~anoop.hbase], [~ram_krish], any suggestions ?
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