Blocker frequently Windows JNLP agents can't connect to Master. When it happens we see high CPU load. Only restart of master helps.
I did not found that specific problem between 6 existing issues that looks the same.
In logs of client:
2018 10:36:39 PM hudson.remoting.jnlp.Main$CuiListener error SEVERE: The server rejected the connection: None of the protocols were accepted java.lang.Exception: The server rejected the connection: None of the protocols were accepted
and
java.util.concurrent.ExecutionException: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Server didn't accept the handshake
in logs of master:
May 29, 2018 12:19:06 AM jenkins.slaves.DefaultJnlpSlaveReceiver channelClosed WARNING: NioChannelHub keys=5 gen=21020468: Computer.threadPoolForRemoting [#8] for BuildVSPro2017-EOD terminated java.io.IOException: Connection aborted: org.jenkinsci.remoting.nio.NioChannelHub$MonoNioTransport@1816c5ac[name=Channel to /10.0.0.164]
Reconnect of manual JNLP does not helps.
Windows service continues running launched state without crash.
I've attached logs of master and slave before restart.
Here the list of plugins:
ws-cleanup: 0.34 rebuild: 1.25 resource-disposer: 0.8 workflow-multibranch: 2.16 git: 3.5.1 file-operations: 1.7 cloudbees-bitbucket-branch-source: 2.2.10 pipeline-stage-step: 2.3 handy-uri-templates-2-api: 2.1.6-1.0 javadoc: 1.4 envinject: 2.1.3 uno-choice: 1.5.2 blueocean-pipeline-scm-api: 1.2.4 handlebars: 1.1.1 config-file-provider: 2.16.4 ssh-slaves: 1.21 conditional-buildstep: 1.3.6 junit: 1.21 workflow-api: 2.20 docker-commons: 1.8 copyartifact: 1.39 ldap: 1.17 blueocean-pipeline-api-impl: 1.2.4 ivy: 1.27.1 aws-java-sdk: 1.11.264 structs: 1.10 external-monitor-job: 1.7 github: 1.28.0 built-on-column: 1.1 workflow-support: 2.14 blueocean-git-pipeline: 1.2.4 mercurial: 2.1 blueocean: 1.2.4 workflow-cps: 2.40 stashNotifier: 1.11.6 sse-gateway: 1.15 pipeline-input-step: 2.8 workflow-job: 2.11.2 ant: 1.7 artifactory: 2.12.2 cmakebuilder: 2.4.5 github-organization-folder: 1.6 pam-auth: 1.3 skip-certificate-check: 1.0 scm-api: 2.2.2 build-name-setter: 1.6.7 maven-plugin: 2.17 pipeline-stage-view: 2.9 role-strategy: 2.6.0 build-timeout: 1.18 workflow-durable-task-step: 2.15 token-macro: 2.3 jenkins-multijob-plugin: 1.28 pipeline-aws: 1.22 blueocean-dashboard: 1.2.4 schedule-build: 0.4.0 bouncycastle-api: 2.16.2 mailer: 1.20 s3: 0.10.12 multiple-scms: 0.6 branch-api: 2.0.11 mapdb-api: 1.0.9.0 blueocean-bitbucket-pipeline: 1.2.4 build-token-root: 1.4 active-directory: 2.6 node-iterator-api: 1.5.0 email-ext: 2.60 scriptler: 2.9 credentials-binding: 1.13 blueocean-rest-impl: 1.2.4 gradle: 1.27.1 blueocean-personalization: 1.2.4 jackson2-api: 2.7.3 matrix-project: 1.11 xunit: 1.102 purge-job-history: 1.1 blueocean-jwt: 1.2.4 msbuild: 1.27 momentjs: 1.1.1 blueocean-config: 1.2.4 scm-sync-configuration: 0.0.10 windows-slaves: 1.3.1 git-server: 1.7 icon-shim: 2.0.3 parameterized-scheduler: 0.5 nodelabelparameter: 1.7.2 apache-httpcomponents-client-4-api: 4.5.3-2.0 blueocean-events: 1.2.4 pipeline-model-extensions: 1.2 pubsub-light: 1.12 jquery-detached: 1.2.1 run-condition: 1.0 display-url-api: 2.0 blueocean-autofavorite: 1.0.0 workflow-step-api: 2.14 workflow-scm-step: 2.5 credentials: 2.1.16 pipeline-model-declarative-agent: 1.1.1 pipeline-build-step: 2.5.1 htmlpublisher: 1.14 ec2-fleet: 1.1.4 jquery: 1.12.4-0 ace-editor: 1.1 script-security: 1.41 workflow-cps-global-lib: 2.9 parameterized-trigger: 2.35.2 durable-task: 1.14 blueocean-i18n: 1.2.4 pipeline-github-lib: 1.0 subversion: 2.9 plain-credentials: 1.4 antisamy-markup-formatter: 1.5 dynamicparameter: 0.2.0 pipeline-utility-steps: 1.4.1 pipeline-model-api: 1.2 favorite: 2.3.0 timestamper: 1.8.8 jira: 2.4.2 ansicolor: 0.5.2 docker-workflow: 1.13 jira-steps: 1.2.3 blueocean-rest: 1.2.4 github-api: 1.89 pipeline-stage-tags-metadata: 1.2 aws-credentials: 1.23 blueocean-commons: 1.2.4 job-restrictions: 0.6 ec2: 1.37 pipeline-model-definition: 1.2 variant: 1.1 build-env-propagator: 1.0 aws-bucket-credentials: 0.2.2 workflow-aggregator: 2.5 blueocean-web: 1.2.4 pipeline-rest-api: 2.9 blueocean-github-pipeline: 1.2.4 pipeline-milestone-step: 1.3.1 workflow-basic-steps: 2.6 ssh-credentials: 1.13 powershell: 1.3 github-branch-source: 2.2.3 cloudbees-folder: 6.1.2 git-client: 2.5.0 envinject-api: 1.2 parameter-separator: 1.0 blueocean-display-url: 2.1.0 pipeline-graph-analysis: 1.5 authentication-tokens: 1.3 blueocean-pipeline-editor: 1.2.4 metrics: 3.1.2.10 matrix-auth: 1.7 blueocean-jira: 1.2.4 Result: [Plugin:ws-cleanup, Plugin:rebuild, Plugin:resource-disposer, Plugin:workflow-multibranch, Plugin:git, Plugin:file-operations, Plugin:cloudbees-bitbucket-branch-source, Plugin:pipeline-stage-step, Plugin:handy-uri-templates-2-api, Plugin:javadoc, Plugin:envinject, Plugin:uno-choice, Plugin:blueocean-pipeline-scm-api, Plugin:handlebars, Plugin:config-file-provider, Plugin:ssh-slaves, Plugin:conditional-buildstep, Plugin:junit, Plugin:workflow-api, Plugin:docker-commons, Plugin:copyartifact, Plugin:ldap, Plugin:blueocean-pipeline-api-impl, Plugin:ivy, Plugin:aws-java-sdk, Plugin:structs, Plugin:external-monitor-job, Plugin:github, Plugin:built-on-column, Plugin:workflow-support, Plugin:blueocean-git-pipeline, Plugin:mercurial, Plugin:blueocean, Plugin:workflow-cps, Plugin:stashNotifier, Plugin:sse-gateway, Plugin:pipeline-input-step, Plugin:workflow-job, Plugin:ant, Plugin:artifactory, Plugin:cmakebuilder, Plugin:github-organization-folder, Plugin:pam-auth, Plugin:skip-certificate-check, Plugin:scm-api, Plugin:build-name-setter, Plugin:maven-plugin, Plugin:pipeline-stage-view, Plugin:role-strategy, Plugin:build-timeout, Plugin:workflow-durable-task-step, Plugin:token-macro, Plugin:jenkins-multijob-plugin, Plugin:pipeline-aws, Plugin:blueocean-dashboard, Plugin:schedule-build, Plugin:bouncycastle-api, Plugin:mailer, Plugin:s3, Plugin:multiple-scms, Plugin:branch-api, Plugin:mapdb-api, Plugin:blueocean-bitbucket-pipeline, Plugin:build-token-root, Plugin:active-directory, Plugin:node-iterator-api, Plugin:email-ext, Plugin:scriptler, Plugin:credentials-binding, Plugin:blueocean-rest-impl, Plugin:gradle, Plugin:blueocean-personalization, Plugin:jackson2-api, Plugin:matrix-project, Plugin:xunit, Plugin:purge-job-history, Plugin:blueocean-jwt, Plugin:msbuild, Plugin:momentjs, Plugin:blueocean-config, Plugin:scm-sync-configuration, Plugin:windows-slaves, Plugin:git-server, Plugin:icon-shim, Plugin:parameterized-scheduler, Plugin:nodelabelparameter, Plugin:apache-httpcomponents-client-4-api, Plugin:blueocean-events, Plugin:pipeline-model-extensions, Plugin:pubsub-light, Plugin:jquery-detached, Plugin:run-condition, Plugin:display-url-api, Plugin:blueocean-autofavorite, Plugin:workflow-step-api, Plugin:workflow-scm-step, Plugin:credentials, Plugin:pipeline-model-declarative-agent, Plugin:pipeline-build-step, Plugin:htmlpublisher, Plugin:ec2-fleet, Plugin:jquery, Plugin:ace-editor, Plugin:script-security, Plugin:workflow-cps-global-lib, Plugin:parameterized-trigger, Plugin:durable-task, Plugin:blueocean-i18n, Plugin:pipeline-github-lib, Plugin:subversion, Plugin:plain-credentials, Plugin:antisamy-markup-formatter, Plugin:dynamicparameter, Plugin:pipeline-utility-steps, Plugin:pipeline-model-api, Plugin:favorite, Plugin:timestamper, Plugin:jira, Plugin:ansicolor, Plugin:docker-workflow, Plugin:jira-steps, Plugin:blueocean-rest, Plugin:github-api, Plugin:pipeline-stage-tags-metadata, Plugin:aws-credentials, Plugin:blueocean-commons, Plugin:job-restrictions, Plugin:ec2, Plugin:pipeline-model-definition, Plugin:variant, Plugin:build-env-propagator, Plugin:aws-bucket-credentials, Plugin:workflow-aggregator, Plugin:blueocean-web, Plugin:pipeline-rest-api, Plugin:blueocean-github-pipeline, Plugin:pipeline-milestone-step, Plugin:workflow-basic-steps, Plugin:ssh-credentials, Plugin:powershell, Plugin:github-branch-source, Plugin:cloudbees-folder, Plugin:git-client, Plugin:envinject-api, Plugin:parameter-separator, Plugin:blueocean-display-url, Plugin:pipeline-graph-analysis, Plugin:authentication-tokens, Plugin:blueocean-pipeline-editor, Plugin:metrics, Plugin:matrix-auth, Plugin:blueocean-jira]
Thank you in advance,
Ilya
