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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-5120) Avoid using MappedByteBuffers for server side sorting.
Date Tue, 05 Feb 2019 15:00:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-5120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16760903#comment-16760903
] 

Hudson commented on PHOENIX-5120:
---------------------------------

FAILURE: Integrated in Jenkins build PreCommit-PHOENIX-Build #2307 (See [https://builds.apache.org/job/PreCommit-PHOENIX-Build/2307/])
PHOENIX-5120; use readFully instead of read. (larsh: rev d9d30b15a8d944f7fce275dbfb8ee72e9cb51b52)
* (edit) phoenix-core/src/main/java/org/apache/phoenix/iterate/BufferedSortedQueue.java
* (edit) phoenix-core/src/main/java/org/apache/phoenix/execute/SortMergeJoinPlan.java


> Avoid using MappedByteBuffers for server side sorting.
> ------------------------------------------------------
>
>                 Key: PHOENIX-5120
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5120
>             Project: Phoenix
>          Issue Type: Task
>    Affects Versions: 4.14.1
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>            Priority: Critical
>             Fix For: 4.15.0, 5.1.0
>
>         Attachments: 5120-1.4-v2.txt, 5120-1.4-v3.txt, 5120-1.4-wip.txt, 5120-1.4.txt,
5120-master-v3.txt, 5120-master-v5.txt, 5120-master-v6.txt, 5120-master.txt
>
>
> We should had a production outage due to this.
> MappedByteBuffer may leave files around, on top they use direct memory, which is not
cleared until the JVM executes a full GC.
> See last comment on PHOENIX-2405.



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