Solve cacti monitor image intermittent problem

The recent cacti images are all intermittent. New device, image also, view cacti log found a large number of similar error messages:
04/12/2011 03:54:37 pm-spine:poller[0] host[233] ds[4990] WARNING:SNMP timeout detected [MS], ignoring Host ' 192.1 68.2.134 '
04/12/2011 03:54:37 pm-spine:poller[0] host[233] ds[4990] WARNING:SNMP timeout detected [MS], ignoring Host ' 192.1 68.2.134 '

04/12/2011 03:55:02 pm-spine:poller[0] warning:host[1] dataquery[1] Reindex Check failed:no SNMP Session. If not a SNMP host, don ' t use Uptime Goes backwards!
04/12/2011 03:55:02 pm-spine:poller[0] warning:host[1] dataquery[13] Reindex Check failed:no SNMP Session. If not a SNMP host, don ' t use Uptime Goes backwards!

Find a solution by searching the Web:

1) Adjust the SNMP timeout value of the host in question, default is 500ms, adjust to 2000

2) Decrease the max OID value of the host in question, my setting is 10, and then change to 60 max.

Fix the problem after modification.

Analysis Reason: The server has just been set up, all images are normal, but the relevant numerical settings are relatively small, added with the default add, as the number of servers, resulting in increased server pressure, the initial set of values is not enough to support the large round robin, so the server in 500ms timeout. The reason is only the approximate judgment, the specific need follow-up observation.

This article is from the "My Ops Road" blog, so be sure to keep this source http://newyue.blog.51cto.com/174760/542694

Solve cacti monitor image intermittent problem