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https://issues.apache.org/jira/browse/FLINK-21857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17306110#comment-17306110
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Dawid Wysakowicz commented on FLINK-21857:
------------------------------------------
I'll look into it.
> StackOverflow for large parallelism jobs when processing
> EndOfChannelStateEvent
> -------------------------------------------------------------------------------
>
> Key: FLINK-21857
> URL: https://issues.apache.org/jira/browse/FLINK-21857
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Reporter: Yingjie Cao
> Priority: Major
> Fix For: 1.13.0
>
>
> CheckpointedInputGate#handleEvent calls pollNext recursively when processing
> EndOfChannelStateEvent, for large parallelism job of large amount of input
> channels, the stack can become really deep thus causing StackOverflow. The
> following is the stack:
> {code:java}
> 12:11
> java.lang.StackOverflowError
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.waitAndGetNextData(SingleInputGate.java:650)
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:625)
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.pollNext(SingleInputGate.java:611)
> at
> org.apache.flink.runtime.taskmanager.InputGateWithMetrics.pollNext(InputGateWithMetrics.java:109)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:149)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:158)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:158)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:158)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:158)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.pollNext(CheckpointedInputGate.java:158)
> at
> org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate.handleEvent(CheckpointedInputGate.java:202){code}
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