Issue. A lot of SCM polling threads.
Increase number of SCM polling threads. Polling not run in job Environment.
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CloudBees Jenkins Enterprise. Jenkins. CloudBees Jenkins Operations Center Resolution In Jenkins there is an option in Manage Jenkins Configure System which allows users to manually set the number of polling threads to any number. This option is only available to Jenkins installations with over 10 jobs which all are using polling. After 10 jobs are configured for SCM polling, then this option becomes available. Sometimes Jenkins will not poll all jobs because there is polling happening in other jobs (or polling is stuck).
If you encounter this issue it is best to increase the total number of polling threads to a higher number. If polling operations are still stuck then perform a thread dump ( kill -3 $PID or jstack $PID) and provide CloudBees support with this information.
Polling can be triggered manually by POSTing to $JENKINSURL/job/JOBNAME/polling. Navigating to this via a browser will provide an option to post to trigger the polling manually.
This entry was posted in on by If you change Cisco switches from SNMP V1/2 to V3, it may go unnoticed that part of the SNMP polling in Netdisco stops working. Specifically, the collection of per-VLAN MAC address tables will fail, with authorization errors in the macsuck log. Additional snmp-server config commands on the switch are required to enable access to the per-VLAN / per-context MAC address table. On switches with newer IOS releases, a single snmp-server group v3group v3 auth context vlan- match prefix will do the job (replace v3group with the local group used for the SNMP V3 user). On older switches, the match prefix wildcard is not available, and the command needs to be issued for each VLAN configured on the switch. The command show snmp context can be used to list the configured VLAN’s. More info: https://supportforums.cisco.com/discussion/10633811/bridge-mib-snmp-v3.