jeongyooneo commented on a change in pull request #99: [NEMO-64] Fix map stage
hang under DataSkewPolicy
URL: https://github.com/apache/incubator-nemo/pull/99#discussion_r209187268
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File path:
runtime/executor/src/test/java/edu/snu/nemo/runtime/executor/datatransfer/DataTransferTest.java
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@@ -300,6 +303,15 @@ private void writeAndRead(final BlockManagerWorker sender,
dummyIREdge.setProperty(DataPersistenceProperty.of(DataPersistenceProperty.Value.Keep));
dummyIREdge.setProperty(EncoderProperty.of(ENCODER_FACTORY));
dummyIREdge.setProperty(DecoderProperty.of(DECODER_FACTORY));
+ if (dummyIREdge.getPropertyValue(CommunicationPatternProperty.class).get()
Review comment:
It is actually used in `InputReader#read`(L355 and others). As now input
data for each task is set as Execution Properties(`DefaultMetricPass`) instead
of the constructor in `StageEdge`, we need to initialize it here for shuffle
read.
So this is not for testing, but simply a required process to enable
`InputReader#read`.
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