Rohith Sharma K S created YARN-4819:
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Summary: SLS requested containers are never allocated for
NODE_LOCAL and RACK_LOCAL tyep
Key: YARN-4819
URL: https://issues.apache.org/jira/browse/YARN-4819
Project: Hadoop YARN
Issue Type: Bug
Components: scheduler-load-simulator
Reporter: Rohith Sharma K S
Assignee: Rohith Sharma K S
SLS requested containers are always assigned in off-switch mode. And scheduler
will never allocate any containers for Node-Local and Rack-local mode.
The reason for the above behavior is parsing of jobinput file for container
host and rack. The input given in job file for rack and node is like below.
{code}"container.host" : "/default-rack/node1",{code}. But after parsing , the
resource request sent for rack is "default-rack" which misses slash('/'). While
container allocation during node heartbeat , node rack name is resolved for
rack which is */default-rack* with which look up for resource request for this
rack returns null. So, All the requests are assigned to off-switch.
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