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https://issues.apache.org/jira/browse/NIFI-4160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16077930#comment-16077930
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ASF subversion and git services commented on NIFI-4160:
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Commit e84f9a24164a3c939664a2259f3a0c07c20cfb97 in nifi's branch
refs/heads/master from [~ijokarumawak]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=e84f9a2 ]
NIFI-4160: SFTPTransfer connection timeout for opening channel.
Signed-off-by: Pierre Villard <[email protected]>
This closes #1991.
> SFTPTransfer should specify connection timeout
> ----------------------------------------------
>
> Key: NIFI-4160
> URL: https://issues.apache.org/jira/browse/NIFI-4160
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.0.0
> Reporter: Koji Kawamura
> Assignee: Koji Kawamura
>
> For FTP/SFTP, we use com.jcraft.jsch library. When XXXSFTP processor make use
> of the library, there are two occasions to set connection timeout. One is
> connecting a session (Socket), and the other is opening a SFTP channel.
> Currently we set a connection timeout which can be specified via processor
> property for connecting a session, but not for opening an SFTP channel.
> Then the library uses default 10ms x 2000 retry to open the channel. With
> slow SFTP servers it's possible that opening channel takes longer than 10ms,
> which can cause following error:
> {code}
> java.io.IOException: Failed to obtain connection to remote host due to
> com.jcraft.jsch.JSchException: channel is not opened
> {code}
> We should specify connection timeout for opening channel as well.
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