tez issues

TEZ-4508: Allow the FAIR_PARALLELISM mode to accept multiple source vertices

1

As explained in [TEZ-4508](https://issues.apache.org/jira/browse/TEZ-4508), I expect there are valid use cases where FairShuffleVertexManager with FAIR_PARALLELISM should accept multiple SCATTER_GATHER edges.

okumin

TEZ-3268: Provide a demuxer sample app that uses fair routing

2

This is a sample application that uses FairShuffleVertexManager. We can use it like this. ``` $ hadoop jar /opt/tez/tez-examples-*.jar demuxerdatagen hdfs:///tmp/in 30 200 $ hadoop jar /opt/tez/tez-examples-*.jar demuxer hdfs:///tmp/in hdfs:///tmp/out...

okumin

Improve test reliability by resolving nondeterministic of HashMap

1

# Problem I detected the unstable For the test : [INFO] org.apache.tez.dag.api.TestDAG#testRecreateDAG [INFO] org.apache.tez.dag.api.TestDAGPlan#userVertexOrderingIsMaintained (they both use verify and createDag function and will be affected by the order of the...

MyEnthusiastic

TEZ-4503: Warn about large conf properties in payload

6

The changes were tested by running `mvn test -Dtest=TestTezUtils` and manually inspecting the output under: `tez-common/target/surefire-reports/org.apache.tez.common.TestTezUtils-output.txt `. ``` SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/home/stamatis/.m2/repository/org/slf4j/slf4j-reload4j/1.7.36/slf4j-reload4j-1.7.36.jar!/org/slf4j/impl/StaticLoggerBinder.class]...

zabetak