Mesos plugin not spreading load across nodes

[Rahul Roy]

Hello All,

We are running Mesos v1.4.1 with Meoss Jenkins plugin v0.15.1. I noticed that all builds end up getting scheduled on the same node over and over again, despite the fact that there 

are several open nodes available. I see severe overloading of one node rather than some kind of a round robin functionality. 

Is there any known way in order to spread the load across multiple nodes ? 

Thanks !

Rahul Roy

[geoffroy...@gmail.com]

Jenkins mesos plugin is doing some mesos slave preselection based on affinity.

It stores a list of last used mesos slaves, and will first try to start any new task on known mesos slaves.

See https://github.com/jenkinsci/mesos-plugin/blob/master/src/main/java/org/jenkinsci/plugins/mesos/JenkinsScheduler.java#L410 and https://github.com/jenkinsci/mesos-plugin/pull/212

Not sure how to disable this feature. Maybe it is possible to set this variable to 0: https://github.com/jenkinsci/mesos-plugin/blob/master/src/main/java/org/jenkinsci/plugins/mesos/JenkinsScheduler.java#L118

BR

[RR]

Thanks for the pointers ! Will explore different options from here on.

regards,

Rahul

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