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https://issues.apache.org/jira/browse/HADOOP-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588725#action_12588725
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Konstantin Shvachko commented on HADOOP-3239:
---------------------------------------------
+1
In JavaDoc the following
{code}
* @return object containing information regarding the file
* null if file not found
{code}
will look like
{code}
Returns:
object containing information regarding the file null if file not found
{code}
I'd say "or null if..." or use a comma.
> exists() calls logs FileNotFoundException in namenode log
> ---------------------------------------------------------
>
> Key: HADOOP-3239
> URL: https://issues.apache.org/jira/browse/HADOOP-3239
> Project: Hadoop Core
> Issue Type: Bug
> Affects Versions: 0.17.0
> Reporter: lohit vijayarenu
> Assignee: lohit vijayarenu
> Fix For: 0.17.0
>
> Attachments: HADOOP-3239-1.patch
>
>
> exists() was modified to invoke getFileStatus() internally. But
> getFileStatus() throws FileNotFoundException for files which does not exists
> and this is logged in RPC$Server for each exists() call. One way to get rid
> of these messages is at the Name Node, catch FileNotFoundException and return
> null. In this case, RPC would not log it in namenode log. But at the client
> end we might have to check for null on all calls of getFileStatus(). Other
> option at client end is to construct FileNotFoundException() when
> getFileInfo() returns null.
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