[Jenkins] Jenkins restarted frequently while using latest unreleased ks-jenkins

[JohnNiang]

What happened

Jenkins pod restarted frequently while using latest unreleased ks-jenkins for testing,

with following JVM options:

-Xms1200m
-Xmx1600m
-XX:MaxRAM=2g
-Dhudson.slaves.NodeProvisioner.initialDelay=20
-Dhudson.slaves.NodeProvisioner.MARGIN=50
-Dhudson.slaves.NodeProvisioner.MARGIN0=0.85
-Dhudson.model.LoadStatistics.clock=5000
-Dhudson.model.LoadStatistics.decay=0.2
-Dhudson.slaves.NodeProvisioner.recurrencePeriod=5000
-Dhudson.security.csrf.DefaultCrumbIssuer.EXCLUDE_SESSION_ID=true
-Dio.jenkins.plugins.casc.ConfigurationAsCode.initialDelay=10000
-Djenkins.install.runSetupWizard=false
-XX:+UseG1GC
-XX:+UseStringDeduplication
-XX:+ParallelRefProcEnabled
-XX:+DisableExplicitGC
-XX:+UnlockDiagnosticVMOptions
-XX:+UnlockExperimentalVMOptions

BTW, I was using one of the following images to test ks-jenkins.

# DIGEST:sha256:7d252ffe7afb2c13bcc1b7d88f1eae7244513dfc14fe280d440e6aeb2f3ad7ff
ghcr.io/kubesphere/ks-jenkins:master
# Or
# DIGEST:sha256:d58eb71c7776f6eeccfd620b12d1bd4d3ecaad1ff7a9988d2ad5d72ed49ebe1f
kubespheredev/ks-jenkins:master

Potential solution

Use following JVM options for test:

-Xms1200m
-Xmx1600m
-XX:MaxRAM=2g
-Dhudson.slaves.NodeProvisioner.initialDelay=20
-Dhudson.slaves.NodeProvisioner.MARGIN=50
-Dhudson.slaves.NodeProvisioner.MARGIN0=0.85
-Dhudson.model.LoadStatistics.clock=5000
-Dhudson.model.LoadStatistics.decay=0.2
-Dhudson.slaves.NodeProvisioner.recurrencePeriod=5000
-Dhudson.security.csrf.DefaultCrumbIssuer.EXCLUDE_SESSION_ID=true
-Dio.jenkins.plugins.casc.ConfigurationAsCode.initialDelay=10000
-Djenkins.install.runSetupWizard=false

I request all contributors to test it using this approach, and give me a feedback below. If you have any other ideas on it, feel free to express it at below.