Multiplexer failed for client

Questions and Answers on installation, deployment, management, locking, tranasactions of Servoy Application Server

Multiplexer failed for client

Postby huber » Mon Aug 21, 2017 3:11 pm

We put over the weekend a new release of our applications based on Servoy 8 and Tomcat into production. Now, we (suddenly) get "multiplexer failed for client" error messages, and, after two to three hours, the application does not respond to user input any more. It looks as Tomcat has silently died, although in Task Manager and Services console it shows Tomcat is up and running. Servoy server error log is attached.
Current "solution" is to restart Tomcat to get it up again.

Any idea what that could be? We have tested it on a test system for several weeks and did not have these problems. May be it has to do with the number of clients, although currently only around ten user are working with the application in parallel.

Thanks for any help.
Robert

Windows Server 2008 R2
Java 1.8.0_131
Servoy 8.1.3
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Robert Huber
7r AG, Switzerland
SAN Developer
http://www.seven-r.ch
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Re: Multiplexer failed for client

Postby jcompagner » Mon Aug 21, 2017 3:29 pm

hard to say, this is mostly a network problem

But that specific thing is not really related to clients i think, because what happens here is that some outside connections try to make a none ssl connection to the server

So maybe something is really spamming your server? trying to connect to 1099?

Check your access logs and try to look who is connecting on 1099 and track that ip?
Johan Compagner
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Re: Multiplexer failed for client

Postby huber » Mon Aug 21, 2017 5:29 pm

Thanks for the hints, Johan. We are analysing.

jcompagner wrote:hard to say, this is mostly a network problem

But that specific thing is not really related to clients i think, because what happens here is that some outside connections try to make a none ssl connection to the server

So maybe something is really spamming your server? trying to connect to 1099?

Check your access logs and try to look who is connecting on 1099 and track that ip?


Regards,
Robert Huber
7r AG, Switzerland
SAN Developer
http://www.seven-r.ch
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Posts: 252
Joined: Mon May 14, 2012 11:31 pm


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