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Posted to dev@giraph.apache.org by "Sergey Edunov (JIRA)" <ji...@apache.org> on 2016/07/27 18:12:20 UTC
[jira] [Created] (GIRAPH-1100) Multiple mutation requests to one
vertex result in failure
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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