[
https://issues.apache.org/jira/browse/FLINK-18348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jiayi Liao updated FLINK-18348:
-------------------------------
Description:
The error will be set and \{{partitionRequestClient}} will be a null value if a
remote channel fails to request the partition at the beginning. And the task
will fail
[here|https://github.com/apache/flink/blob/2150533ac0b2a6cc00238041853bbb6ebf22cee9/flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java#L172]
when the task thread trying to fetch data from channels.
And then we get error:
{code:java}
java.lang.IllegalStateException: Queried for a buffer before requesting a queue.
at
org.apache.flink.util.Preconditions.checkState(Preconditions.java:195)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.getNextBuffer(RemoteInputChannel.java:172)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.waitAndGetNextData(SingleInputGate.java:637)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:615)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNext(SingleInputGate.java:598)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
{code}
But the root cause is the error we set when requesting the partition.
was:
The error will be set and \{{partitionRequestClient}} will be a null value if a
remote channel fails to request the partition at the beginning. And the task
will fail
[here|https://github.com/apache/flink/blob/2150533ac0b2a6cc00238041853bbb6ebf22cee9/flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java#L172]
when the task thread trying to fetch data from channel.
And then we get error:
{code:java}
java.lang.IllegalStateException: Queried for a buffer before requesting a queue.
at
org.apache.flink.util.Preconditions.checkState(Preconditions.java:195)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.getNextBuffer(RemoteInputChannel.java:172)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.waitAndGetNextData(SingleInputGate.java:637)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:615)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
at
org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNext(SingleInputGate.java:598)
~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
{code}
But the root cause is the error we set when requesting the partition.
> RemoteInputChannel should checkError before checking partitionRequestClient
> ---------------------------------------------------------------------------
>
> Key: FLINK-18348
> URL: https://issues.apache.org/jira/browse/FLINK-18348
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Affects Versions: 1.10.1
> Reporter: Jiayi Liao
> Priority: Major
>
> The error will be set and \{{partitionRequestClient}} will be a null value if
> a remote channel fails to request the partition at the beginning. And the
> task will fail
> [here|https://github.com/apache/flink/blob/2150533ac0b2a6cc00238041853bbb6ebf22cee9/flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java#L172]
> when the task thread trying to fetch data from channels.
> And then we get error:
> {code:java}
> java.lang.IllegalStateException: Queried for a buffer before requesting a
> queue.
> at
> org.apache.flink.util.Preconditions.checkState(Preconditions.java:195)
> ~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
> at
> org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.getNextBuffer(RemoteInputChannel.java:172)
> ~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.waitAndGetNextData(SingleInputGate.java:637)
> ~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:615)
> ~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
> at
> org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNext(SingleInputGate.java:598)
> ~[flink-dist_2.11-1.11-SNAPSHOT.jar:1.11-SNAPSHOT]
> {code}
> But the root cause is the error we set when requesting the partition.
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