Weirdness with 'ons' process....

Hi,

I'm running a 10gR2 (10.2.0.2) 64-bit RAC cluster, three nodes on DL-585s (configured w/ 4 dual core CPUs and 32GB of RAM). I've been doing some fairly large-scale load testing, pointing our preproduction environment at this cluster, and seeing some great performance results.

However, I've been seeing a weird anomaly on two of the three boxes. If I run:
netstat -an|grep -c ":6101 "
on each of the three nodes, one node reports zero, one reports 41,446 and one reports 63,961! These connections are all on the local loopback. Where are these coming from? I know (or I think I know) that this has to do with 'ons'. I haven't found much info on ONS.. I know it has to do with FAN, which I have not implemented at this point. Is this "normal"? If so, why the huge difference in distribution of the connections across nodes? (Oh, also, the status of these thousands of connections is 'TIME_WAIT'.)

As this point, it doesn't seem to be negatively affecting performance, but it sure seems odd....anyone have any clues for me??

AdvThanksance,

-Mark

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Mark J. Bobak
Senior Oracle Architect
ProQuest Information & Learning

There is nothing so useless as doing efficiently that which shouldn't be done at all. -Peter F. Drucker, 1909-2005

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http://www.freelists.org/webpage/oracle-l Received on Tue Oct 31 2006 - 10:58:48 CST