Arun Suresh created YARN-5338:
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Summary: Fix ContainerId fromString to correctly parse remotely
allocated container Ids
Key: YARN-5338
URL: https://issues.apache.org/jira/browse/YARN-5338
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Arun Suresh
Assignee: Arun Suresh
Fix For: 2.9.0
ContainerIds generated by the Local Scheduler on the NM monotonically
decrements from 0 to distinguish them from incrementing containerIds generated
by the RM.
Since only the last 40 bits of the ContainerId are actually used, This patch
ensures that -1 containerId maps to 2 ^40 -1 and the toString and fromString
correctly parses these containerId.
One implication of this is patch is that the containerId space is divided into
2. The top half will be used by remotely allocated containers and the bottom
half by those allocated by the RM
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