Roman Khachatryan created FLINK-22553:
-----------------------------------------
Summary: Improve error reporting on TM connection failures
Key: FLINK-22553
URL: https://issues.apache.org/jira/browse/FLINK-22553
Project: Flink
Issue Type: Improvement
Components: Runtime / Network
Reporter: Roman Khachatryan
Fix For: 1.14.0
Connection failures reported by NettyPartitionRequestClient contain misleading
NPE in their stacktrace, e.g. reported in
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/remote-task-manager-netty-exception-td43401.html
{code}
org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException:
Connecting to remote task manager '/100.98.115.117:41245' has failed. This
might indicate that the remote task manager has been lost.
at
org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory.connect(PartitionRequestClientFactory.java:145)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory.connectWithRetries(PartitionRequestClientFactory.java:114)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory.createPartitionRequestClient(PartitionRequestClientFactory.java:81)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.netty.NettyConnectionManager.createPartitionRequestClient(NettyConnectionManager.java:70)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.requestSubpartition(RemoteInputChannel.java:179)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.internalRequestPartitions(SingleInputGate.java:321)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.requestPartitions(SingleInputGate.java:290)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.taskmanager.InputGateWithMetrics.requestPartitions(InputGateWithMetrics.java:94)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:50)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.streaming.runtime.tasks.mailbox.Mail.run(Mail.java:90)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.processMail(MailboxProcessor.java:297)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:189)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:617)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:581)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:755)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:570)
[flink-dist_2.12-1.12.2.jar:1.12.2]
at java.lang.Thread.run(Thread.java:834) [?:?]Caused by:
java.lang.NullPointerException
at org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:59)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.netty.NettyPartitionRequestClient.<init>(NettyPartitionRequestClient.java:74)
~[flink-dist_2.12-1.12.2.jar:1.12.2]
at
org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory.connect(PartitionRequestClientFactory.java:136)
~[flink-dist_2.12-1.12.2.jar:1.12.2] ... 16 more
{code}
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