Jie Yu created MESOS-4697:
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Summary: Consolidate cgroup isolators into one single isolator.
Key: MESOS-4697
URL: https://issues.apache.org/jira/browse/MESOS-4697
Project: Mesos
Issue Type: Epic
Reporter: Jie Yu
There are two motivations for this:
1) It's very verbose to add a new isolator. For cgroup isolators (e.g., cpu,
mem, net_cls, etc.), many of the logics are the same. We are currently
duplicating a lot of the code.
2) Initially, we decided to use a separate isolator for each cgroup subsystem
is because we want each subsystem to be mounted under a different hierarchy.
This gradually become not true with unified cgroup hierarchy introduced in
kernel 3.16. Also, on some popular linux distributions, some subsystems are
co-mounted within the same hierarchy (e.g., net_cls and net_prio, cpu and
cpuacct). It becomes very hard to co-manage a hierarchy by two isolators.
We can still introduce subsystem specific code under the unified cgroup
isolator (e.g., introduce a Subsystem abstraction?).
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