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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15640) L1 cache doesn't give fair warning that it is showing partial stats only when it hits limit
Date Fri, 22 Apr 2016 16:49:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15254203#comment-15254203
] 

Hudson commented on HBASE-15640:
--------------------------------

FAILURE: Integrated in HBase-0.98-matrix #335 (See [https://builds.apache.org/job/HBase-0.98-matrix/335/])
HBASE-15640 L1 cache doesn't give fair warning that it is showing (apurtell: rev 906841a886f0bd12c0e0c2b328f6b4b9be7f6f38)
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderV2.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/BlockCacheUtil.java
* hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/BlockCacheTmpl.jamon


> L1 cache doesn't give fair warning that it is showing partial stats only when it hits
limit
> -------------------------------------------------------------------------------------------
>
>                 Key: HBASE-15640
>                 URL: https://issues.apache.org/jira/browse/HBASE-15640
>             Project: HBase
>          Issue Type: Sub-task
>          Components: BlockCache
>            Reporter: stack
>            Assignee: stack
>             Fix For: 2.0.0, 1.3.0, 0.98.19, 1.4.0, 1.2.2
>
>         Attachments: 15640.patch, Screen Shot 2016-04-12 at 4.21.50 PM.png, bc.ui (1).patch,
bc.ui.patch, bc.ui.v3.patch
>
>
> I was baffled looking at L1 Cache because it was stuck at 100k blocks and only 'loading'
3G of data according to the UI. When I looked in log, all the numbers looked write in the
Cache summary reported in log.
> Turns out our buckecache UI template will cut off calculating stats at a limit --which
is probably what we want -- but the fact that it has done this should be more plain.



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