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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17738) BucketCache startup is slow
Date Thu, 17 Aug 2017 19:26:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16131047#comment-16131047
] 

Hudson commented on HBASE-17738:
--------------------------------

FAILURE: Integrated in Jenkins build HBASE-14070.HLC #233 (See [https://builds.apache.org/job/HBASE-14070.HLC/233/])
HBASE-17738 BucketCache startup is slow (Ram) (ramkrishna: rev d0e4a643a0a1085c98485d37fb433bc8865bc0ad)
* (edit) hbase-common/src/main/java/org/apache/hadoop/hbase/util/ByteBufferArray.java
* (edit) hbase-common/src/test/java/org/apache/hadoop/hbase/util/TestByteBufferArray.java
HBASE-17738 BucketCache startup is slow - addendum (Ram) (ramkrishna: rev 0c49185c3e95cc91ba6455a404ca4e89f2c2fc20)
* (edit) hbase-common/src/test/java/org/apache/hadoop/hbase/util/TestByteBufferArray.java
* (edit) hbase-common/src/main/java/org/apache/hadoop/hbase/util/ByteBufferArray.java


> BucketCache startup is slow
> ---------------------------
>
>                 Key: HBASE-17738
>                 URL: https://issues.apache.org/jira/browse/HBASE-17738
>             Project: HBase
>          Issue Type: Sub-task
>          Components: BucketCache
>    Affects Versions: 2.0.0
>            Reporter: stack
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 2.0.0, 2.0.0-alpha-2
>
>         Attachments: HBASE-17738_10.patch, HBASE-17738_11.patch, HBASE-17738_2.patch,
HBASE-17738_2.patch, HBASE-17738_3.patch, HBASE-17738_4.patch, HBASE-17738_5_withoutUnsafe.patch,
HBASE-17738_6_withoutUnsafe.patch, HBASE-17738_8.patch, HBASE-17738_9.patch, HBASE-17738_log.patch,
HBASE-17738.patch
>
>
> If you set bucketcache size at 64G say and then start hbase, it takes a long time. Can
we do the allocations in parallel and not inline with the server startup?
> Related, prefetching on a bucketcache is slow. Speed it up.



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