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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » FileOutput node SFTP seems slow

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kevinobyrne
PostPosted: Mon Aug 24, 2015 2:24 am    Post subject: FileOutput node SFTP seems slow Reply with quote

Voyager

Joined: 17 Jul 2007
Posts: 83
Location: Ireland
I'm using WMB 7.0.0.6 on Solaris.

Nightly I process a batch of messages which uses FileOutput to SFTP the files to another Solaris server.

It seem to take a long time when I compare difference in the performance of the flow using local FileOutput and SFTP FileOutput.

Is anyone familiar with the specifics how it works? Is the node opening and closing a connection for each file it sends?

Thanks
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mqjeff
PostPosted: Mon Aug 24, 2015 4:29 am    Post subject: Reply with quote

Grand Master

Joined: 25 Jun 2008
Posts: 17447
The node *should* cache the connection between sends.

But the FileOutput node, when sending to an external server, writes the file locally *first* and then sends that file remotely.

So it's a two step process rather than a one-step process.

This is a *good* thing - it ensures that the file is complete and error free before sending it to the consumer - probably an external entity!
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kevinobyrne
PostPosted: Tue Aug 25, 2015 12:35 am    Post subject: Reply with quote

Voyager

Joined: 17 Jul 2007
Posts: 83
Location: Ireland
Thanks Jeff.

We figured out that the delay was due to a large SSH key which was taking a few seconds to encrypt each file.
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