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https://issues.apache.org/jira/browse/ZOOKEEPER-2870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16122276#comment-16122276
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Hudson commented on ZOOKEEPER-2870:
-----------------------------------
FAILURE: Integrated in Jenkins build ZooKeeper-trunk #3493 (See
[https://builds.apache.org/job/ZooKeeper-trunk/3493/])
ZOOKEEPER-2870: Improve the efficiency of AtomicFileOutputStream (hanm: rev
0c5b320060bdda854b530dc8a22993ba8cbbd655)
* (edit) src/java/main/org/apache/zookeeper/common/AtomicFileOutputStream.java
> Improve the efficiency of AtomicFileOutputStream
> ------------------------------------------------
>
> Key: ZOOKEEPER-2870
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2870
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.4.10, 3.5.3, 3.6.0
> Reporter: Fangmin Lv
> Assignee: Fangmin Lv
> Fix For: 3.5.4, 3.6.0, 3.4.11
>
>
> The AtomicFileOutputStream extends from FilterOutputStream, where the write
> function writes data to underlying stream byte by byte:
> https://searchcode.com/codesearch/view/17990706/, which is very inefficient.
> Currently, we only this this class to write the dynamic config, because it's
> quite small it won't be a big problem. But in the future we may want to use
> this class to write the snapshot file, which will take much longer time,
> tested inside, writing 600MB snapshot will take more than 10 minutes, while
> using FileOutputStream directly only takes 6s.
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