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Chris Nauroth commented on ZOOKEEPER-2183: ------------------------------------------ We've had some prior discussion of this topic on the dev mailing list: http://mail-archives.apache.org/mod_mbox/zookeeper-dev/201505.mbox/%3CCANLc_9K69jkAzHx2xdh-GPhDTMJtLsUCn5zTcWbg1cj09ugNiQ%40mail.gmail.com%3E > Change test port assignments to improve uniqueness of ports for multiple > concurrent test processes on the same host. > -------------------------------------------------------------------------------------------------------------------- > > Key: ZOOKEEPER-2183 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2183 > Project: ZooKeeper > Issue Type: Improvement > Components: tests > Reporter: Chris Nauroth > Assignee: Chris Nauroth > > Tests use {{PortAssignment#unique}} for assignment of the ports to bind > during tests. Currently, this method works by using a monotonically > increasing counter from a static starting point. Generally, this is > sufficient to achieve uniqueness within a single JVM process, but it does not > achieve uniqueness across multiple processes on the same host. This can > cause tests to get bind errors if there are multiple pre-commit jobs running > concurrently on the same Jenkins host. This also prevents running tests in > parallel to improve the speed of pre-commit runs. -- This message was sent by Atlassian JIRA (v6.3.4#6332)