[jira] [Created] (YARN-8320) Add support CPU isolation for latency-sensitive (LS) tasks

["Jiandan Yang (JIRA)" <ji...@apache.org>]

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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