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https://reviews.apache.org/r/51633/
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Review request for samza.
Bugs: SAMZA-1013
https://issues.apache.org/jira/browse/SAMZA-1013
Repository: samza
Description
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YARN Node labels were introduced in Hadoop version 2.6, which allows to group nodes with similar
characteristics and allows applications to specify where to run. This patch adds support for
YARN node labels in Samza.
In this implementation, node labels are defined directly in yarnConfig in YarnClusterResourceManager.
It might be better to have node labels as a part of SamzaResourceRequest and SamzaResource
classes, but org.apache.hadoop.yarn.api.records.Container class doesn't contain node label
and hence we have nothing to pass to the SamzaResource constructor in onContainersAllocated
method of YarnClusterResourceManager class.
Diffs
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samza-yarn/src/main/java/org/apache/samza/config/YarnConfig.java 8f2dc48
samza-yarn/src/main/java/org/apache/samza/job/yarn/YarnClusterResourceManager.java 96d3d7c
samza-yarn/src/main/scala/org/apache/samza/job/yarn/ClientHelper.scala 0998c43
Diff: https://reviews.apache.org/r/51633/diff/
Testing
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Thanks,
Maxim Logvinenko
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