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  1. JDK
  2. JDK-8266490

Extend the OSContainer API to support the pids controller of cgroups

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    • b10
    • generic
    • linux

    Backports

      Description

        Existing cgroup v1 and v2 metrics for Hotspot have been introduced with the container
        detection code. It is using os::Linux::print_container_info() which in turn uses OSContainer Linux-
        only API.
        Extend the OSContainer API in order to also support the pids controller of cgroups.

        There is a --pids-limit flag to docker/podman which seems to use the same cgroups interface files.
        systemd seems to use the same functionality to limit the number of tasks a user can start.


        More info
        https://www.freedesktop.org/software/systemd/man/systemd.resource-control.html
        https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v1/pids.html
        https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html#pid

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8279567 Extend the OSContainer API to support the pids controller of cgroups

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8279677 Extend the OSContainer API to support the pids controller of cgroups

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8288307 Extend the OSContainer API to support the pids controller of cgroups

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8294999 Extend the OSContainer API to support the pids controller of cgroups

            • P3 - Major loss of function.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8302221 Extend the OSContainer API to support the pids controller of cgroups

            • P3 - Major loss of function.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8274506 TestPids.java and TestPidsLimit.java fail with podman run as root

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Enhancement - null JDK-8273526 Extend the OSContainer API pids controller with pids.current

            • P3 - Major loss of function.
            • Resolved
            links to

            Commit Commit openjdk/jdk11u-dev/372af6a8

            Commit Commit openjdk/jdk17u-dev/3de6b2cb

            Commit Commit openjdk/jdk/089e83bf

            Review Review openjdk/jdk11u-dev/1089

            Review Review openjdk/jdk17u-dev/66

            Review Review openjdk/jdk/4518

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                mbaesken Matthias Baesken
                mbaesken Matthias Baesken
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                  Updated:
                  Resolved: