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https://issues.apache.org/jira/browse/HADOOP-15051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16258445#comment-16258445
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Steve Loughran commented on HADOOP-15051:
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Assuming this JIRA just wants the output stream to implement the method, well,
not going happen. So closing as a WONTFIX. If it is "ChecksumFileSystem output
streams to support hflush/hsync. well. bigger issue. Open a new JIRA
> FSDataOutputStream returned by LocalFileSystem#createNonRecursive doesn't
> have hflush capability
> ------------------------------------------------------------------------------------------------
>
> Key: HADOOP-15051
> URL: https://issues.apache.org/jira/browse/HADOOP-15051
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs
> Affects Versions: 3.0.0-beta1
> Reporter: Ted Yu
>
> See HBASE-19289 for background information.
> Here is related hbase code (fs is instance of LocalFileSystem):
> {code}
> this.output = fs.createNonRecursive(path, overwritable, bufferSize,
> replication, blockSize,
> null);
> // TODO Be sure to add a check for hsync if this branch includes
> HBASE-19024
> if (!(CommonFSUtils.hasCapability(output, "hflush"))) {
> throw new StreamLacksCapabilityException("hflush");
> {code}
> StreamCapabilities is used to poll "hflush" capability.
> [~busbey] suggested fixing this in hadoop.
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