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From Wonbae Kim <zwi...@gmail.com>
Subject Problem occurs when I increase the number of workers
Date Tue, 09 Jul 2013 10:15:11 GMT
When running SimpleShortesPath example, it completed well if the number of
worker is 1.

hadoop jar \
/home/wb/giraph-1.0.0/giraph-examples/target/giraph-examples-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar
\
org.apache.giraph.GiraphRunner \
org.apache.giraph.examples.SimpleShortestPathsVertex \
-vif
org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat \
-vip /in/input \
-of org.apache.giraph.io.formats.IdWithValueTextOutputFormat \
-op /outShortest \
-w 1


However, when I increase the number of workers , like 2, map tasks were
killed.

hadoop jar \
/home/wb/giraph-1.0.0/giraph-examples/target/giraph-examples-1.0.0-for-hadoop-0.20.203.0-jar-with-dependencies.jar
\
org.apache.giraph.GiraphRunner \
org.apache.giraph.examples.SimpleShortestPathsVertex \
-vif
org.apache.giraph.io.formats.JsonLongDoubleFloatDoubleVertexInputFormat \
-vip /in/input \
-of org.apache.giraph.io.formats.IdWithValueTextOutputFormat \
-op /outShortest \
-w 2


How can I increase the number of workers?

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