On 1/15/09 10:18 AM, "charlesdf23" <[email protected]> wrote:
> I would like to start out stating that I am very impressed with this product > and we going through a proof of concept/ eval. > > I'm seeing drastic performance issues with my fresh Zenoss install. > > I have 493 devices (mostly cisco switches) and according the the zenperfsnmp > log it's taking around 500 seconds to complete. > > I also receive numerous > Timeout connecting to zenhub: is it running? > > and for some reason zenwin and zeneventlog keep stopping themselves. > > This is a 2x quad core box with 8gb of memory in it. > > Any ideas or thoughts to hopefully troubleshoot this? It's not necessarily how many devices your poling, but how many data points your collecting. I've found that about 80k data points is the max any one server can handle before response time becomes an issue. Zenoss is very write intensive and anything you can do to improve performance of the disk sub-system will directly improve server performance. To check how many data points your collecting: grep OID `find $ZENHOME/log -name zenperfsnmp.log` | tail Top will give you an idea of how much I/O wait time your dealing with. On my HP Proliant DL360 G5's I'm using RAID 1+0 and allocated 75% of the controller cache to writes. You could also create another logical drive to store your data on ($ZENHOME/perf) and set the mount point option to noatime. Hope this helps. -- Chuck -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ zenoss-users mailing list [email protected] http://lists.zenoss.org/mailman/listinfo/zenoss-users
