Hi, I had a strange situation on a server starting to respond very slow on almost any deamon (tomcat/apache/ssh/cyrus). While prstat/top did not show any high cpu usage (under 5%) and prstat -Z didn't show any very high memory usage, and swap look there unused...I tried running netstat -a to see how many sockets where there serving. The result was a very fast output of all the normal sockets, and then hanging for 10-30 seconds before the output of active UNIX domain sockets. I repeated the command some times, but didn't think about saving the output somewhere, so I don't know what the domain sockets state was (which files, where). I can say the machine runs amavis / spamd / lmtpd /saslauthd / cyrus / postfix / apache / tomcat / postgres for more than 600 users. Is there anything I should look deeper about the domain socket usage? Is it possible that they were so much busy slowing down every socket (even ssh took 1 to 2 minutes to take me to the bash). .....any idea? Gabriele ---------------------------------------------------------------------------------------- Sonicle S.r.l. : http://www.sonicle.com Music: http://www.gabrielebulfon.com Quantum Mechanics : http://www.cdbaby.com/cd/gabrielebulfon
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