Stefan Richter created FLINK-9388: ------------------------------------- Summary: Inconsistency in job shutdown produces confusing log message Key: FLINK-9388 URL: https://issues.apache.org/jira/browse/FLINK-9388 Project: Flink Issue Type: Bug Components: TaskManager Affects Versions: 1.5.0, 1.6.0 Reporter: Stefan Richter
I found some logged exceptions in a user log that occurred during shutdown in the context of latency markers. Those exceptions are most certainly not a real problem, but can be confusing to users, so maybe we can get rid of them. {code} org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:527) at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:676) at org.apache.flink.streaming.api.operators.StreamSource$LatencyMarksEmitter$1.onProcessingTime(StreamSource.java:151) at org.apache.flink.streaming.runtime.tasks.SystemProcessingTimeService$RepeatedTriggerTask.run(SystemProcessingTimeService.java:294) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:527) at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:676) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.reportOrForwardLatencyMarker(AbstractStreamOperator.java:652) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processLatencyMarker(AbstractStreamOperator.java:635) at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:524) ... 10 more Caused by: org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:527) at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:676) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.reportOrForwardLatencyMarker(AbstractStreamOperator.java:652) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processLatencyMarker(AbstractStreamOperator.java:635) at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:524) ... 14 more Caused by: org.apache.flink.streaming.runtime.tasks.ExceptionInChainedOperatorException: Could not forward element to next operator at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:527) at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:676) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.reportOrForwardLatencyMarker(AbstractStreamOperator.java:652) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processLatencyMarker(AbstractStreamOperator.java:635) at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:524) ... 18 more Caused by: java.lang.RuntimeException: Buffer pool is destroyed. at org.apache.flink.streaming.runtime.io.RecordWriterOutput.emitLatencyMarker(RecordWriterOutput.java:147) at org.apache.flink.streaming.api.operators.AbstractStreamOperator$CountingOutput.emitLatencyMarker(AbstractStreamOperator.java:676) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.reportOrForwardLatencyMarker(AbstractStreamOperator.java:652) at org.apache.flink.streaming.api.operators.AbstractStreamOperator.processLatencyMarker(AbstractStreamOperator.java:635) at org.apache.flink.streaming.runtime.tasks.OperatorChain$ChainingOutput.emitLatencyMarker(OperatorChain.java:524) ... 22 more Caused by: java.lang.IllegalStateException: Buffer pool is destroyed. at org.apache.flink.runtime.io.network.buffer.LocalBufferPool.requestBufferBuilder(LocalBufferPool.java:211) at org.apache.flink.runtime.io.network.buffer.LocalBufferPool.requestBufferBuilderBlocking(LocalBufferPool.java:199) at org.apache.flink.runtime.io.network.api.writer.RecordWriter.sendToTarget(RecordWriter.java:134) at org.apache.flink.runtime.io.network.api.writer.RecordWriter.randomEmit(RecordWriter.java:108) at org.apache.flink.streaming.runtime.io.StreamRecordWriter.randomEmit(StreamRecordWriter.java:102) at org.apache. {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)