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https://issues.apache.org/jira/browse/HADOOP-2657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576882#action_12576882
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Hadoop QA commented on HADOOP-2657:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12377504/flush7.patch
against trunk revision 619744.
@author +1. The patch does not contain any @author tags.
tests included +1. The patch appears to include 3 new or modified tests.
javadoc +1. The javadoc tool did not generate any warning messages.
javac +1. The applied patch does not generate any new javac compiler
warnings.
release audit +1. The applied patch does not generate any new release
audit warnings.
findbugs -1. The patch appears to introduce 4 new Findbugs warnings.
core tests +1. The patch passed core unit tests.
contrib tests +1. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1925/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1925/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1925/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1925/console
This message is automatically generated.
> Enhancements to DFSClient to support flushing data at any point in time
> -----------------------------------------------------------------------
>
> Key: HADOOP-2657
> URL: https://issues.apache.org/jira/browse/HADOOP-2657
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.17.0
>
> Attachments: flush.patch, flush2.patch, flush3.patch, flush4.patch,
> flush5.patch, flush6.patch, flush7.patch
>
>
> The HDFS Append Design (HADOOP-1700) requires that there be a public API to
> flush data written to a HDFS file that can be invoked by an application. This
> API (popularly referred to a fflush(OutputStream)) will ensure that data
> written to the DFSOutputStream is flushed to datanodes and any required
> metadata is persisted on Namenode.
> This API has to handle the case when the client decides to flush after
> writing data that is not a exact multiple of io.bytes.per.checksum.
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