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Matthias commented on FLINK-9974: --------------------------------- [~NicoK] Is there a way to reproduce this issue? > "Implementation error: Unhandled exception" in CheckpointingStatisticsHandler > ----------------------------------------------------------------------------- > > Key: FLINK-9974 > URL: https://issues.apache.org/jira/browse/FLINK-9974 > Project: Flink > Issue Type: Improvement > Components: Runtime / Coordination > Affects Versions: 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.7.0 > Reporter: Nico Kruber > Priority: Major > > {code} > 2018-07-22 16:12:21.252 ERROR o.a.f.r.r.h.j.c.CheckpointingStatisticsHandler > - Implementation error: Unhandled exception. > java.util.concurrent.CancellationException: null > at > java.util.concurrent.CompletableFuture.cancel(CompletableFuture.java:2263) > at > org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache.getExecutionGraph(ExecutionGraphCache.java:124) > at > org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler.handleRequest(AbstractExecutionGraphHandler.java:76) > at > org.apache.flink.runtime.rest.handler.AbstractRestHandler.respondToRequest(AbstractRestHandler.java:77) > at > org.apache.flink.runtime.rest.AbstractHandler.respondAsLeader(AbstractHandler.java:144) > at > org.apache.flink.runtime.rest.handler.RedirectHandler.lambda$null$0(RedirectHandler.java:139) > at > java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) > at > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736) > at > java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357) > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) > at java.lang.Thread.run(Thread.java:748) > {code} > and > {code} > 2018-07-22 16:20:26.444 ERROR o.a.f.r.r.h.job.JobDetailsHandler - > Implementation error: Unhandled exception. > java.util.concurrent.CancellationException: null > at > java.util.concurrent.CompletableFuture.cancel(CompletableFuture.java:2263) > at > org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache.getExecutionGraph(ExecutionGraphCache.java:124) > at > org.apache.flink.runtime.rest.handler.job.AbstractExecutionGraphHandler.handleRequest(AbstractExecutionGraphHandler.java:76) > at > org.apache.flink.runtime.rest.handler.AbstractRestHandler.respondToRequest(AbstractRestHandler.java:77) > at > org.apache.flink.runtime.rest.AbstractHandler.respondAsLeader(AbstractHandler.java:144) > at > org.apache.flink.runtime.rest.handler.RedirectHandler.lambda$null$0(RedirectHandler.java:139) > at > java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760) > at > java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736) > at > java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357) > at > org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111) > at > org.apache.flink.shaded.netty4.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) > at java.lang.Thread.run(Thread.java:748) > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)