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https://issues.apache.org/jira/browse/FLINK-34288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814638#comment-17814638
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Rui Fan commented on FLINK-34288:
---------------------------------
Thanks [~lincoln.86xy] for the reminder.
Test suggestion:
# Prepare a datastream job that all tasks throw exception directly.
## Set the parallelism to 5 or above
# Prepare some configuration options:
** restart-strategy.type : exponential-delay
** restart-strategy.exponential-delay.attempts-before-reset-backoff : 7
# Start the cluster: ./bin/start-cluster.sh
# Run the job: ./bin/flink run -c className jarName
# Check the result
** Check whether job will be retried 7 times
** Check the exception history, the list has 2 exceptions
** Each retries except the last one can see the 5 subtasks(They are concurrent
exceptions).
!image-2024-02-06-14-51-11-256.png!
Note: Set these options mentioned at step2 at 2 level separately
* Cluster level: set them in the config.yaml
* Job level: Set them in the code
Job level demo:
{code:java}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
conf.setString("restart-strategy", "exponential-delay");
conf.setString("restart-strategy.exponential-delay.attempts-before-reset-backoff",
"6");
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment(conf);
env.setParallelism(5);
DataGeneratorSource<Long> generatorSource =
new DataGeneratorSource<>(
value -> value,
300,
RateLimiterStrategy.perSecond(10),
Types.LONG);
env.fromSource(generatorSource, WatermarkStrategy.noWatermarks(), "Data
Generator")
.map(new RichMapFunction<Long, Long>() {
@Override
public Long map(Long value) {
throw new RuntimeException(
"Excepted testing exception, subtaskIndex: " +
getRuntimeContext().getIndexOfThisSubtask());
}
})
.print();
env.execute();
} {code}
> Release Testing Instructions: Verify FLINK-33735 Improve the
> exponential-delay restart-strategy
> ------------------------------------------------------------------------------------------------
>
> Key: FLINK-34288
> URL: https://issues.apache.org/jira/browse/FLINK-34288
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Affects Versions: 1.19.0
> Reporter: lincoln lee
> Assignee: Rui Fan
> Priority: Blocker
> Labels: release-testing
> Fix For: 1.19.0
>
> Attachments: image-2024-02-06-14-51-11-256.png, screenshot-1.png
>
>
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