Eric Yang created YARN-9669:
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Summary: YARN Container phase 3
Key: YARN-9669
URL: https://issues.apache.org/jira/browse/YARN-9669
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Eric Yang
Docker container can run on Hadoop cluster fine today in Hadoop 3.1.1+ release
and trunk code base. We are getting feedback from potential customers for
advance features that may take Docker support to the next level. The
frequently requested features are:
h3. Improve cgroups support
h4. Support systemd based cgorup
YARN-9660 provides instruction to setup cgroups fs to control Docker container
with cgroup. The next step is to support Docker cgroups with systemd natively.
This will reduce some configuration steps on Docker side to make the user
experience more seamless.
h4. Disk throttling
Docker supports IO throttling with several docker parameters:
{code}--device-read-bps=""
--device-write-bps=""
--device-read-iops=""
--device-write-iops=""{code}
This looks like a good feature for YARN to specify IO throughput for stress
test simulation.
h3. Docker volume support
Docker can create data container of fixed size. This is useful to limit disk
usage for containers. This feature provides resource management to data, and
ability to create docker volume and anchor docker containers to colocate with
data container.
h3. Protection against overlay network spike
Badly designed docker container can cause system to become non-responsive, if
network spikes occurs or forking uncontrollably. Some protection maybe useful
to guard against network flood and fork bomb. Active prevention can shutdown
the crashing docker container before system hangs.
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