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  1. Cloud Enablement
  2. CLOUD-1965

[SSO7] Support clean shutdown on TERM

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    • Target Release:
    • Story Points:
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    • Git Pull Request:
    • Affects:
      Release Notes
    • Release Notes Text:
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      Feature: Replaced the SSO7 image prestop hooks in application templates with a TERM signal handler in the SSO7 openshift-launch script.
      Reason: Relying on a prestop hook for clean shutdown of JBossAS on a TERM signal adds an extra 2 seconds to termination. A TERM handler in the openshift-launch scripts cleanly terminates the SSO7 images without the 2 second delay.
      Result : The openshift-launch script wrapper now sets a trap for a TERM signal, forks the SSO7 application process in the background, then waits for SSO7 process to terminate. When a TERM signal is given, the wrapper process catches the signal and runs the jboss-cli script to cleanly shutdown the JBossAS process.
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      Feature: Replaced the SSO7 image prestop hooks in application templates with a TERM signal handler in the SSO7 openshift-launch script. Reason: Relying on a prestop hook for clean shutdown of JBossAS on a TERM signal adds an extra 2 seconds to termination. A TERM handler in the openshift-launch scripts cleanly terminates the SSO7 images without the 2 second delay. Result : The openshift-launch script wrapper now sets a trap for a TERM signal, forks the SSO7 application process in the background, then waits for SSO7 process to terminate. When a TERM signal is given, the wrapper process catches the signal and runs the jboss-cli script to cleanly shutdown the JBossAS process.
    • Sprint:
      CLOUD Maintenance Sprint 10

      Description

      At present we rely on a prestop hook to cleanly shutdown the EAP 7.x images, we should add in a wrapper script to handle clean shutdown on receipt of a TERM signal so the prestop hook is no longer necessary.

      Both mechanisms are impacted by the same termination period although there is an extra 2 second grace if the prestop hook is used.

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            Issue Links

            cloned from

            Enhancement - An enhancement or refactoring of existing functionality CLOUD-1864 [EAP7] Support clean shutdown on TERM

            • Major - A request that should be considered seriously but is not a show stopper.
            • Verified
            is followed up by

            Bug - A problem which impairs or prevents the functions of the product. CLOUD-2215 [SSO] Templates contain prestop lifecycle hook for graceful shutdown

            • Major - A request that should be considered seriously but is not a show stopper.
            • Verified
            is related to

            Feature Request - A new feature of the product, which has yet to be developed. WFCORE-3073 Handle Shutdown via TERM gracefully

            • Major - A request that should be considered seriously but is not a show stopper.
            • Resolved
            relates to

            Enhancement - An enhancement or refactoring of existing functionality CLOUD-2152 [tracker] Sprint 12 release

            • Major - A request that should be considered seriously but is not a show stopper.
            • Closed

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                • Assignee:
                  kliberti Kyle Liberti
                  Reporter:
                  kliberti Kyle Liberti
                  Tester:
                  Pavel Drobek
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                  • Created:
                    Updated:
                    Resolved: