vivekratnavel opened a new pull request #1424: HDDS-2107. Datanodes should retry forever to connect to SCM in an… URL: https://github.com/apache/hadoop/pull/1424 … unsecure environment In an unsecure environment, the datanodes try upto 10 times after waiting for 1000 milliseconds each time before throwing this error: ```Unable to communicate to SCM server at scm:9861 for past 0 seconds. java.net.ConnectException: Call From scm:9861 failed on connection exception: java.net.ConnectException: Connection refused;``` This PR fixes that issue by having datanodes try forever to connect with SCM and not fail immediately after 10 retries. I have also increased timeouts on a unit test to improve its stability.
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