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https://issues.apache.org/jira/browse/BOOKKEEPER-564?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13604920#comment-13604920
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Hadoop QA commented on BOOKKEEPER-564:
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Testing JIRA BOOKKEEPER-564
Patch
[BOOKKEEPER-564.patch|https://issues.apache.org/jira/secure/attachment/12574118/BOOKKEEPER-564.patch]
downloaded at Mon Mar 18 07:10:43 UTC 2013
----------------------------
{color:green}+1 PATCH_APPLIES{color}
{color:green}+1 CLEAN{color}
{color:red}-1 RAW_PATCH_ANALYSIS{color}
. {color:green}+1{color} the patch does not introduce any @author tags
. {color:green}+1{color} the patch does not introduce any tabs
. {color:red}-1{color} the patch contains 5 line(s) with trailing spaces
. {color:green}+1{color} the patch does not introduce any line longer than
120
. {color:green}+1{color} the patch does adds/modifies 6 testcase(s)
{color:green}+1 RAT{color}
. {color:green}+1{color} the patch does not seem to introduce new RAT
warnings
{color:green}+1 JAVADOC{color}
. {color:green}+1{color} the patch does not seem to introduce new Javadoc
warnings
{color:green}+1 COMPILE{color}
. {color:green}+1{color} HEAD compiles
. {color:green}+1{color} patch compiles
. {color:green}+1{color} the patch does not seem to introduce new javac
warnings
{color:green}+1 FINDBUGS{color}
. {color:green}+1{color} the patch does not seem to introduce new Findbugs
warnings
{color:green}+1 TESTS{color}
. Tests run: 818
{color:green}+1 DISTRO{color}
. {color:green}+1{color} distro tarball builds with the patch
----------------------------
{color:red}*-1 Overall result, please check the reported -1(s)*{color}
The full output of the test-patch run is available at
. https://builds.apache.org/job/bookkeeper-trunk-precommit-build/289/
> Better checkpoint mechanism
> ---------------------------
>
> Key: BOOKKEEPER-564
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-564
> Project: Bookkeeper
> Issue Type: Improvement
> Components: bookkeeper-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Fix For: 4.3.0
>
> Attachments: BOOKKEEPER-564.patch
>
>
> Currently, SyncThread made a checkpoint too frequently, which affects
> performance. data is writing to entry logger file might be blocked by syncing
> same entry logger file, which affect bookie to achieve higher throughput. We
> could schedule checkpoint only when rotating an entry log file. so new
> incoming entries would be written to newer entry log file and old entry log
> file could be synced.
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