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IDS Forum

IDS 11.10.xC2 on Solaris 10

Posted By: Lello, Nick
Date: Tuesday, 8 April 2008, at 7:05 a.m.

I'm looking for any ideas here as we seem to be getting the usual
round-around from both Informix and Sun...

We have an multi-database installation of IDS 10.0.UC4 on Solaris 9 (Sun
fire v480) which we are replacing with a reloaded engine IDS 11.10.FC2
on Solaris 10 (Sun fire v490).

The Solaris 10 + IDS 11 system runs really well (50%+ speed improvement)
until after a couple of days we start seeing:-

05:49:39 listener-thread: err = -25575: oserr = 12: errstr = :
Network driver cannot allocate the call structure. System error = 12.

The operating system has been configured in accordance with the Machine
Notes for the IDS 11.10.FC2 distribution - curiously there is no mention
of tuning the TCP stack through ndd.

Unfortunately the IBM (Informix) response has been a flat 'its an os
error - speak to Sun' which is correct, but they wont help with any
clues on what the call that is failing possibly is.... Sun are asking
for source code and/or a truss of the failing process.

I have tried setting the following prior to IDS startup:-

ndd -set /dev/tcp tcp_time_wait_interval 15000

ndd -set /dev/tcp tcp_conn_req_max_q 4096

ndd -set /dev/tcp tcp_conn_req_max_q0 16384

ndd -set /dev/tcp tcp_max_buf 655350

ndd -set /dev/tcp tcp_cwnd_max 655350

Following my gut instinct for dealing with networking issues that
*appear* to be with the queue depth

However, I'd love to hear from someone who has any solid ideas or
experience with this version mix....

Regards,
Nick

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