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From "James Thomas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6634) inotify in HDFS
Date Fri, 29 Aug 2014 07:09:55 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Thomas updated HDFS-6634:
-------------------------------

    Attachment: HDFS-6634.8.patch

[~andrew.wang], thanks for the review. Made all of the changes you suggested except the FileJournalManager
one, since LOG.error was used in another method ({{addStreamsToCollectionFromFiles}}) for
the same exception.

Also fixed the FindBugs issue and reverted to the old implementation of {{DFSInotifyInputStream#poll(long,
TimeUnit)}} since the new one could lose Events in certain situations.

> inotify in HDFS
> ---------------
>
>                 Key: HDFS-6634
>                 URL: https://issues.apache.org/jira/browse/HDFS-6634
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs-client, namenode, qjm
>            Reporter: James Thomas
>            Assignee: James Thomas
>         Attachments: HDFS-6634.2.patch, HDFS-6634.3.patch, HDFS-6634.4.patch, HDFS-6634.5.patch,
HDFS-6634.6.patch, HDFS-6634.7.patch, HDFS-6634.8.patch, HDFS-6634.patch, inotify-design.2.pdf,
inotify-design.3.pdf, inotify-design.4.pdf, inotify-design.pdf, inotify-intro.2.pdf, inotify-intro.pdf
>
>
> Design a mechanism for applications like search engines to access the HDFS edit stream.



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