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Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8279567	17.0.3-oracle	Harold Seigel	P3	Resolved	Fixed	b01
JDK-8279677	17.0.3	Matthias Baesken	P3	Resolved	Fixed	b01
JDK-8294999	11.0.18-oracle	Calvin Cheung	P3	Resolved	Fixed	b03
JDK-8288307	11.0.17	Matthias Baesken	P3	Resolved	Fixed	b01
JDK-8302221	8u381	Ivan Bereziuk	P3	Resolved	Fixed	b01

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

backported by

JDK-8279567 Extend the OSContainer API to support the pids controller of cgroups

JDK-8279677 Extend the OSContainer API to support the pids controller of cgroups

JDK-8288307 Extend the OSContainer API to support the pids controller of cgroups

JDK-8294999 Extend the OSContainer API to support the pids controller of cgroups

JDK-8302221 Extend the OSContainer API to support the pids controller of cgroups

relates to

JDK-8274506 TestPids.java and TestPidsLimit.java fail with podman run as root

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

links to

Commit openjdk/jdk11u-dev/372af6a8

Commit openjdk/jdk17u-dev/3de6b2cb

Commit openjdk/jdk/089e83bf

Review openjdk/jdk11u-dev/1089

Review openjdk/jdk17u-dev/66

Review openjdk/jdk/4518

(2 relates to, 6 links to)