Thanks for the suggestion. We will try uvsh the next time we have the
failure. Last night we had the problem occur for 50 mins. Because it
continued for so long we were able to have users in our various locations
make multiple attempts to login from multiple PCs. Surprisingly, some
locations claimed they could not login at all, others claimed that some PCs
could be logged in while other could not. Either our assumption that the
problem affects all users is false or the problem occurred many times but
each time for only a short period of time. Once again users already in
Universe noticed no problems and no unusual locks we noted when we used the
command "list.readu every". "analyze.shm -s" does not show any unusually
high numbers of Collisions. Are there any log files we should be checking?
We are more puzzled than ever.
Vance Dailey
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Glenn Herbert
Sent: Wednesday, February 04, 2004 10:13 AM
To: U2 Users Discussion List
Subject: Re: UV command failing mystery


The 'uv' command is basically a small front ender to the 'uvsh' executable,
which is really the guts of universe.  The uv command does little more (for
universe) then to check ulimit settings, increasing them when necessary,
then issuing an execve() call to uvsh.  If you bypass 'uv' and just use
'uvsh', does the problem still occur?

Your universe configurables seem reasonable, as well as your kernel params,
but I do recall an issue whereby the OS would disallow exec's (and /or
forks) due to system resource exhaustion, although it has been a while and
I cannot recall the details.

At 05:23 PM 02/03/2004, you wrote:
>We are having a very strange intermittent problem with the UV command not
>working from Unix.

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