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https://issues.apache.org/jira/browse/FLINK-38499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mingliang Liu updated FLINK-38499:
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Affects Version/s: 2.0.1
2.2.0
2.1.2
> Limit max sleep time in Curator for Zookeeper HA
> ------------------------------------------------
>
> Key: FLINK-38499
> URL: https://issues.apache.org/jira/browse/FLINK-38499
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 2.0.1, 2.2.0, 2.1.2
> Reporter: Mingliang Liu
> Priority: Major
> Labels: pull-request-available
>
> Currently, the Curator framework used by ZK based HA is using the exponential
> backoff retry policy. However, the max sleep time is unbounded. That could
> cause unbounded sleep time when the retryCount is large. When that happens,
> recovery from ZK issues may be unreasonably slow.
> In my day job, we have a critical patch that limits the max sleep time after
> seeing multiple ZK issues in the past. In other Apache projects, the
> {{BoundedExponentialBackoffRetry}} is widely used, such as fluss, druid,
> hudi, bookeeper, phoeniex, hbase...to name a few.
> This Jira proposes to limit the max sleep time by leveraging
> {{{}BoundedExponentialBackoffRetry{}}}, with a 60s default value for
> starters. Users can change this via a new config option.
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