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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19187) Remove option to create on heap bucket cache
Date Fri, 10 Nov 2017 00:43:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16246836#comment-16246836
] 

Ted Yu commented on HBASE-19187:
--------------------------------

The following failure can be reproduced:
{code}
testBasicScanWithOnheapBucketCache(org.apache.hadoop.hbase.io.hfile.TestScannerFromBucketCache)
 Time elapsed: 0.092 sec  <<< ERROR!
java.io.IOException: java.lang.IllegalArgumentException: Don't understand io engine name for
cache- prefix with file:, files:, mmap: or offheap
	at org.apache.hadoop.hbase.io.hfile.TestScannerFromBucketCache.initHRegion(TestScannerFromBucketCache.java:370)
	at org.apache.hadoop.hbase.io.hfile.TestScannerFromBucketCache.initHRegion(TestScannerFromBucketCache.java:351)
	at org.apache.hadoop.hbase.io.hfile.TestScannerFromBucketCache.initHRegion(TestScannerFromBucketCache.java:341)
	at org.apache.hadoop.hbase.io.hfile.TestScannerFromBucketCache.testBasicScanWithOnheapBucketCache(TestScannerFromBucketCache.java:248)
{code}
Looks like testBasicScanWithOnheapBucketCache can be dropped.

Please check other failed tests.

> Remove option to create on heap bucket cache
> --------------------------------------------
>
>                 Key: HBASE-19187
>                 URL: https://issues.apache.org/jira/browse/HBASE-19187
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 2.0.0-alpha-3
>            Reporter: Biju Nair
>            Assignee: Anoop Sam John
>            Priority: Minor
>             Fix For: 2.1.0
>
>         Attachments: HBASE-19187.patch
>
>
> Since we are moving read and write paths to use direct memory, option to configure on
heap bucket cache is irrelevant. We should remove that option.



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