[JIRA] (OVIRT-2782) Configure Jenkins to wait less and allocate more

[ https://ovirt-jira.atlassian.net/browse/OVIRT-2782?page=com.atlassian.jir... ] Daniel Belenky updated OVIRT-2782: ---------------------------------- Description: By default, Jenkins is configured to wait a few seconds before allocating a new node in a hope that a node in use to be freed. We can control this setting by setting `hudson.slaves.NodeProvisioner.initialDelay` to `0`. But, because Jenkins computes the excess workload value (which decides if we need to allocate a new node) using an EMA, we also can control it's margins to lower its threshold so that Jenkins will allocate nodes faster and in advance. The recommended settings by the k8s plugin to spawn a node for every build in the queue: ``` By default, Jenkins is configured to wait a few seconds before allocating a new node in a hope that a node in use to be freed. We can control this setting by setting `hudson.slaves.NodeProvisioner.initialDelay` to `0`. But, because Jenkins computes the excess workload value (which decides if we need to allocate a new node) using an EMA, we also can lower its threshold so that Jenkins will allocate nodes faster and in advance. {code:java} -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85 {code} was: By default, Jenkins is configured to wait a few seconds before allocating a new node in a hope that a node in use to be freed. We can control this setting by setting `hudson.slaves.NodeProvisioner.initialDelay` to `0`. But, because Jenkins computes the excess workload value (which decides if we need to allocate a new node) using an EMA, we also can control it's margins to lower its threshold so that Jenkins will allocate nodes faster and in advance. The recommended settings by the k8s plugin to spawn a node for every build in the queue: ``` By default, Jenkins is configured to wait a few seconds before allocating a new node in a hope that a node in use to be freed. We can control this setting by setting `hudson.slaves.NodeProvisioner.initialDelay` to `0`. But, because Jenkins computes the excess workload value (which decides if we need to allocate a new node) using an EMA, we also can lower its threshold so that Jenkins will allocate nodes faster and in advance. ``` -Dhudson.slaves.NodeProvisioner.initialDelay=0 -Dhudson.slaves.NodeProvisioner.MARGIN=50 -Dhudson.slaves.NodeProvisioner.MARGIN0=0.85 ``` -- This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100107)