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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
