Hi Folks,
        I am seeing this error recently in jobs, can you please throw some light on what resolveMutations in NettyWorkerServer.java tries to achieve ?
Trace:   
Caused by: java.lang.IllegalStateException: resolveMutations: Already has missing vertex on this worker for 8345381246748292335
	at org.apache.giraph.comm.netty.NettyWorkerServer.resolveMutations(NettyWorkerServer.java:184)
	at org.apache.giraph.comm.netty.NettyWorkerServer.prepareSuperstep(NettyWorkerServer.java:152)
	at org.apache.giraph.worker.BspServiceWorker.startSuperstep(BspServiceWorker.java:677)
	at org.apache.giraph.graph.GraphTaskManager.execute(GraphTaskManager.java:249)
	at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:92)

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Best Regards,
Jyotirmoy Sundi