Hi Team, I have the latest build of giraph running on a 5 node cluster. When i try to use OutofCore Graph option for a huge data set like 600Milion edges i am running into
the following exception. Please find below the script being executed and the exception logs. I have tried all possible ways and could not avoid this issue , i am really in need of your help. *Script:*hadoop jar /usr/local/giraph.back.1.2.0/giraph-examples/target/giraph-examples-1.2.0-SNAPSHOT-for-hadoop-2.7.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner -Dmapreduce.task.timeout=12000000 -Dmapred.job.tracker=ip-172-31-42-220.eu-west-1.compute.internal:8021 -Dmapreduce.map.memory.mb=23480 -Dmapreduce.map.java.opts=-Xmx22480m org.apache.giraph.examples.ConnectedComponentsComputation -vif org.apache.giraph.io.formats.IntIntNullTextInputFormat -vip /test/input_10M -vof org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /test/ouput_10M -w 5 -ca giraph.userPartitionCount=150,giraph.SplitMasterWorker=true,giraph.isStaticGraph=true,giraph.maxPartitionsInMemory=10,mapred.map.max.attempts=2,giraph.maxMessagesInMemory=100,giraph.numOutputThreads=10,giraph.useOutOfCoreMessages=true,giraph.numOutputThreads=4,giraph.numInputThreads=4,giraph.useOutOfCoreGraph=true,giraph.cleanupCheckpointsAfterSuccess=true,giraph.checkpointFrequency=1 *Exception:hadoop jar /usr/local/giraph.back.1.2.0/giraph-examples/target/giraph-examples-1.2.0-SNAPSHOT-for-hadoop-2.7.0-jar-with-dependencies.jar org.apache.giraph.GiraphRunner -Dmapreduce.task.timeout=12000000 -Dmapred.job.tracker=ip-172-31-42-220.eu-west-1.compute.internal:8021 -Dmapreduce.map.memory.mb=23480 -Dmapreduce.map.java.opts=-Xmx22480m org.apache.giraph.examples.ConnectedComponentsComputation -vif org.apache.giraph.io.formats.IntIntNullTextInputFormat -vip /test/input_10M -vof org.apache.giraph.io.formats.IdWithValueTextOutputFormat -op /test/ouput_10M -w 5 -ca giraph.userPartitionCount=150,giraph.SplitMasterWorker=true,giraph.isStaticGraph=true,giraph.maxPartitionsInMemory=10,mapred.map.max.attempts=2,giraph.maxMessagesInMemory=100,giraph.numOutputThreads=10,giraph.useOutOfCoreMessages=true,giraph.numOutputThreads=4,giraph.numInputThreads=4,giraph.useOutOfCoreGraph=true,giraph.cleanupCheckpointsAfterSuccess=true,giraph.checkpointFrequency=1* *thanks* *Ramesh*
