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Solaris instability: maybe the monitor backend?

More about my instability problems with OpenLDAP 2.1.x and Solaris7.

I've since patched the servers with Sun's latest recommended patch set. 
The servers have run without fail since Tuesday.  My test scripts which
update a value and verify the replication have run since then without

Til today.
The coincidence: 'til today, I have not run my MRTG probing script.  This
script fetches a few values from the monitor backend (current/start time,
connections, total ops) to feed into MRTG.  But, within a few hours of
starting that again (running every 10 minutes), the replication failed.

I've shut that back down, to see if the problem persists.  Things are back
to normal for the moment.  While this is coincidental, and I have not a
bit of proof, I wonder if there's some possible odd locking problem or
something in the monitor backend that might be hanging the server.

Will keep watching it.  Will try to find out more.

Alan Sparks, UNIX/Linux Systems Administrator    <asparks@doublesparks.net>