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Review request for giraph.
Summary
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Warning: This is a very large change!
Vertex ranges no longer exist. A generic partitioner handles the
division of vertex ids to partitions. As a default, there is a
HashPartitioner and a HashRangePartitioner that will use the hashCode
of a Java object to decide which partition to place the vertex.
Developers can write their own algorithm to determine how to change
the partitioning as well as implement the assignment of partitions to
workers. All vertices loaded from the input split are sent to the
owner of the partition rather than loaded locally. This eliminates the
constraint that the vertices must be ordered in the input split.
The checkpoint format has been changed to suit the new partition
style. Checkpoints are now a lot simpler. The master will assign
partitions and the workers will only load their own partitions from
the checkpoint.
Unfortunately, the vertex range implementation was baked into almost
every aspect of the code (hence the ridiculous size of this diff).
But now it should be flexible to support several different graph
partitioning schemes (i.e. hash-based, hash-ranged-based, and for
special cases, fully ranged-based).
Sorry for the long delay, but this way pretty involved.
This addresses bug GIRAPH-11.
https://issues.apache.org/jira/browse/GIRAPH-11
Diffs
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/bsp/CentralizedServiceWorker.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/BasicRPCCommunications.java
1196639
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/CommunicationsInterface.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/RPCCommunications.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/ServerInterface.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/WorkerCommunications.java
1196639
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/GeneratedVertexInputFormat.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/GeneratedVertexReader.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/MaxAggregator.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/MinAggregator.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/SimpleMutateGraphVertex.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/SimpleSuperstepVertex.java
1196639
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/SuperstepBalancer.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/SuperstepHashPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/examples/VerifyMessage.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/AutoBalancer.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BasicVertex.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BasicVertexRangeBalancer.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspService.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspServiceMaster.java
1196639
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspServiceWorker.java
1198972
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/BspUtils.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GiraphJob.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GlobalStats.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GraphMapper.java
1198972
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/GraphState.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/LongDoubleFloatDoubleVertex.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/MutableVertex.java
1196639
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/StaticBalancer.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/Vertex.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/VertexRange.java
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http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/VertexRangeBalancer.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/WorkerInfo.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/BasicPartitionOwner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/GraphPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/HashMasterPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/HashPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/HashRangePartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/HashRangeWorkerPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/HashWorkerPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/MasterGraphPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/Partition.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/PartitionBalancer.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/PartitionExchange.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/PartitionOwner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/PartitionStats.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangeMasterPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangePartitionOwner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangePartitionStats.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangePartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangeSplitHint.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/RangeWorkerPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/graph/partition/WorkerGraphPartitioner.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/utils/WritableUtils.java
PRE-CREATION
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/zk/ZooKeeperExt.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/site/site.xml
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/test/java/org/apache/giraph/TestMutateGraphVertex.java
1199643
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/test/java/org/apache/giraph/TestVertexRangeBalancer.java
1186590
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/test/java/org/apache/giraph/TestVertexRangeBalancer.java
1199643
Diff: https://reviews.apache.org/r/2788/diff
Testing
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local and MR unittests. Added some simple unittests for testing the
out-of-order input splits and other balancing algorithms.
Thanks,
Avery
