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From "Benoit Perroud (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7873) OIV webhdfs premature close channel issue
Date Thu, 12 Mar 2015 12:32:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benoit Perroud updated HDFS-7873:
---------------------------------
    Attachment: HDFS-7873-v3.txt

> OIV webhdfs premature close channel issue
> -----------------------------------------
>
>                 Key: HDFS-7873
>                 URL: https://issues.apache.org/jira/browse/HDFS-7873
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 2.6.0, 2.5.2
>            Reporter: Benoit Perroud
>            Priority: Minor
>         Attachments: HDFS-7873-v1.txt, HDFS-7873-v2.txt, HDFS-7873-v3.txt
>
>
> The new Offline Image Viewer (OIV) supports to load the FSImage and _emulate_ a webhdfs
server to explore the image without touching the NN.
> This webhdfs server is not working with folders holding a significant number of children
(files or other folders):
> {quote}
> $  hadoop fs -ls webhdfs://127.0.0.1:5978/a/big/folder
> 15/03/03 04:28:19 WARN ssl.FileBasedKeyStoresFactory: The property 'ssl.client.truststore.location'
has not been set, no TrustStore will be loaded
> 15/03/03 04:28:21 WARN security.UserGroupInformation: PriviledgedActionException as:bperroud
(auth:SIMPLE) cause:java.io.IOException: Response decoding failure: java.lang.IllegalStateException:
Expected one of '"}'
> ls: Response decoding failure: java.lang.IllegalStateException: Expected one of '"}'
> {quote}
> The error comes from an inappropriate usage of Netty. {{e.getFuture().addListener(ChannelFutureListener.CLOSE)}}
is closing the channel too early because the future attached to the channel already sent the
header so the I/O operation succeeded.



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