Jiandan Yang created YARN-8320:
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Summary: Add support CPU isolation for latency-sensitive (LS)
tasks
Key: YARN-8320
URL: https://issues.apache.org/jira/browse/YARN-8320
Project: Hadoop YARN
Issue Type: New Feature
Components: nodemanager
Reporter: Jiandan Yang
Currently NodeManager uses “cpu.cfs_period_us”, “cpu.cfs_quota_us” and
“cpu.shares” to isolate cpu resource. However,
* Linux Completely Fair Scheduling (CFS) is a throughput-oriented scheduler; no
support for differentiated latency
* Request latency of services running on container may be frequent shake when
all containers share cpus, and latency-sensitive services can not afford in our
production environment.
So we need more finer cpu isolation.
My co-workers and I propose a solution using cgroup cpuset to binds containers
to different processors according to a [Google’s
PPT|http://schd.ws/hosted_files/lcccna2016/a7/CAT%20@%20Scale.pdf].
Later I will upload a detailed design doc.
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