[jira] [Created] (FLINK-24369) Resource Leak may happen if flink cluster runs abnormally and repeatedly retry

["turtlebin (Jira)" <ji...@apache.org>]

turtlebin created FLINK-24369:
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             Summary: Resource Leak may happen if flink cluster runs abnormally and repeatedly retry
                 Key: FLINK-24369
                 URL: https://issues.apache.org/jira/browse/FLINK-24369
             Project: Flink
          Issue Type: Bug
          Components: API / DataStream
    Affects Versions: 1.13.0
            Reporter: turtlebin


I encountered a problem in the process of integrating Flink and Redisson. When the task encounters abnormalities and keeps retries, it will cause the number of Redis Clients to increase volatility (sometimes the number increases, sometimes the number decreases, but the overall trend is growth). Even if I shutdown the Redisson Instance by overwriting the close function , the number of Redis-Clients cannot be prevented from continuing to grow, and eventually the number of Clients will reach the upper limit and an error will be thrown. Moreover, this situation only occurs in the Flink cluster operation mode with version 1.13.0 or above, and the number of Redis-Clients will remain stable in the local mode or in the cluster mode with version under1.12. The test code is below. I wonder if you can provide specific reasons and solutions for this situation, thank you.



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