Craig Muchinsky created GIRAPH-735:
--------------------------------------
Summary: DiskBackedPartitionStore throws NPE due to uninitialized
OutEdges
Key: GIRAPH-735
URL: https://issues.apache.org/jira/browse/GIRAPH-735
Project: Giraph
Issue Type: Bug
Components: graph
Affects Versions: 1.1.0
Reporter: Craig Muchinsky
The DiskBackedPartitionStore is throwing an NPE when trying to load a partition
from disk. It seems to be related to the call to
ImmutableClassesGiraphConfiguration.createOutEdges() which doesn't initialize
the OutEdges before it attempts to populate them via Vertex.initialize().
Simply switching to
ImmutableClassesGiraphConfiguration.createAndInitializeOutEdges() seems to
correct the following stack trace:
Caused by: java.lang.NullPointerException
at org.apache.giraph.edge.HashMapEdges.write(HashMapEdges.java:130)
at
org.apache.giraph.utils.WritableUtils.writeVertexToDataOutput(WritableUtils.java:578)
at
org.apache.giraph.utils.WritableUtils.writeVertexToByteArray(WritableUtils.java:409)
at
org.apache.giraph.utils.WritableUtils.writeVertexToByteArray(WritableUtils.java:436)
at
org.apache.giraph.partition.ByteArrayPartition.putVertex(ByteArrayPartition.java:92)
at
org.apache.giraph.partition.DiskBackedPartitionStore.loadPartition(DiskBackedPartitionStore.java:457)
at
org.apache.giraph.partition.DiskBackedPartitionStore.access$1000(DiskBackedPartitionStore.java:74)
at
org.apache.giraph.partition.DiskBackedPartitionStore$GetPartition.call(DiskBackedPartitionStore.java:695)
at
org.apache.giraph.partition.DiskBackedPartitionStore$GetPartition.call(DiskBackedPartitionStore.java:631)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
at java.util.concurrent.FutureTask.run(FutureTask.java:149)
at
org.apache.giraph.partition.DiskBackedPartitionStore$DirectExecutorService.execute(DiskBackedPartitionStore.java:943)
at
java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:103)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
