01-16-2009 12:27 AM
Hi to all,
I've a problem with CSS keepalives and IBM MQIPT listening on port 1431.
I send tcp keepalives with tcp-close rst. It seems that MQIPT register the connection opened by the CSS but don't close the connection when the CSS send the rst. When i reach the maximum number of parallels connections permitted by MQIPT the service go down. I also tried with tcp-close fin.
Have you any idea about this problem?
01-19-2009 04:16 AM
We don't have much options : it's either FIN or RST.
If none work, this could be bad.... what about possible hackers opening connections wihtout closing ??
Anyway, you could try to write a script probe that would actually send some data before closing.
Quite often with IBM this is required.
Gilles.
01-29-2009 01:11 AM
I think it's an application problem because the netstat command on the OS don't show many connections opened. I think that MQIPT don't decrease his counter because our FIN it's OK for the OS but it's not OK for the application.
Thanks for your reply.
I will try to investigate the problem and, if needed, to write a probe script.
Marco
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