Github user ishark commented on the pull request:
https://github.com/apache/incubator-apex-core/pull/250#issuecomment-191536790
Testing Done:
1. Unit tests for Dag Validation scenarios
2. Unit tests for host allocation based on affinity rules
3. Tested following scenarios on Cloudera and Hortonworks:
- Anti-affinity between partitions of operators
- Anti-affinity between any two operators (stream connected and not
connected)
- Anti-affinity between parallel partitioned operators
- Node and Container Affinity between operators not connected by stream
- Node affinity between 2 Stream connected operators when the stream is
not Node Local
- Container affinity between 2 Stream connected operators when the
stream is not Node Local
- Affinity and Anti-affinity rules with Locality_host set for operator
- Out of resources condition in case of Strict Anti-affinity.
Application should keep waiting till resources are allocated as per rules
- Checked preferred anti-affinity rules are dropped if resources are not
available
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