alien11689 opened a new pull request #9: Fix ignite sink startup URL: https://github.com/apache/ignite-extensions/pull/9 Current implementation of `open` function in Ignite Sink does not work when flink `parallelism` is set to value higher than one. Flink quickly starts multiple instances of job and checking first if the instance is already started and then starting new instance leads to IgniteException `Default instance is has already been started` and job does not connect to ignite at all. Example test scenario: 0. Flink job with parallelism > 1 (higher is better to reproduce) starts 1. Job instance 1 checks for ignite existence 2. Job instance 2 checks for ignite existence 3. Job instance 1 starts ignite -> success 4. Job instance 2 starts ignite -> exception 5. Flink stops all job instances because of exception on one of its job instances
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