Sergey Edunov created GIRAPH-1100:
-------------------------------------
Summary: Multiple mutation requests to one vertex result in failure
Key: GIRAPH-1100
URL: https://issues.apache.org/jira/browse/GIRAPH-1100
Project: Giraph
Issue Type: Bug
Reporter: Sergey Edunov
Assignee: Sergey Edunov
The scenario is simple:
You send multiple addEdgeRequest() where the source vertex of new edge does not
exist (typical scenario for adding reverse edges). If two of these requests
happen to arrive in the single SendPartitionMutationsRequest, giraph is unable
to handle it:
FATAL 2016-07-26 17:59:09,563 [netty-server-worker-6]
org.apache.giraph.graph.GraphTaskManager - uncaughtException:
OverrideExceptionHandler on thread netty-server-worker-6, msg = readFields:
Already has vertex id 977939745592684, exiting...
java.lang.IllegalStateException: readFields: Already has vertex id
977939745592684
at
org.apache.giraph.comm.requests.SendPartitionMutationsRequest.readFieldsRequest(SendPartitionMutationsRequest.java:98)
at
org.apache.giraph.comm.requests.WritableRequest.readFields(WritableRequest.java:118)
at
org.apache.giraph.utils.RequestUtils.decodeWritableRequest(RequestUtils.java:52)
at
org.apache.giraph.comm.netty.handler.RequestDecoder.channelRead(RequestDecoder.java:89)
at
io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:338)
at
io.netty.channel.DefaultChannelHandlerContext.access$700(DefaultChannelHandlerContext.java:29)
at
io.netty.channel.DefaultChannelHandlerContext$8.run(DefaultChannelHandlerContext.java:329)
at
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:354)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:353)
at
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
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