[jira] Resolved: (HDFS-200) In HDFS, sync() not yet guarantees data available to the new readers

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE resolved HDFS-200.
-----------------------------------------

    Resolution: Duplicate

This duplicates HDFS-659.

> In HDFS, sync() not yet guarantees data available to the new readers
> --------------------------------------------------------------------
>
>                 Key: HDFS-200
>                 URL: https://issues.apache.org/jira/browse/HDFS-200
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: dhruba borthakur
>            Priority: Blocker
>         Attachments: 4379_20081010TC3.java, fsyncConcurrentReaders.txt, fsyncConcurrentReaders11_20.txt, fsyncConcurrentReaders12_20.txt, fsyncConcurrentReaders13_20.txt, fsyncConcurrentReaders14_20.txt, fsyncConcurrentReaders3.patch, fsyncConcurrentReaders4.patch, fsyncConcurrentReaders5.txt, fsyncConcurrentReaders6.patch, fsyncConcurrentReaders9.patch, hadoop-stack-namenode-aa0-000-12.u.powerset.com.log.gz, hdfs-200-ryan-existing-file-fail.txt, hypertable-namenode.log.gz, namenode.log, namenode.log, Reader.java, Reader.java, reopen_test.sh, ReopenProblem.java, Writer.java, Writer.java
>
>
> In the append design doc (https://issues.apache.org/jira/secure/attachment/12370562/Appends.doc), it says
> * A reader is guaranteed to be able to read data that was 'flushed' before the reader opened the file
> However, this feature is not yet implemented.  Note that the operation 'flushed' is now called "sync".

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.