Ahmed Hussein created HADOOP-17314: -------------------------------------- Summary: Reduce port collisions in JUnits Key: HADOOP-17314 URL: https://issues.apache.org/jira/browse/HADOOP-17314 Project: Hadoop Common Issue Type: Bug Reporter: Ahmed Hussein Assignee: Ahmed Hussein
Several Junit tests passes a non-zero port number to {{ServerSocketUtil.getPort()}}. I noticed that those non-zero values are shared between test methods. Based, on the implementation of {{ServerSocketUtil.getPort()}}, the port is checked then, the socket is closed immediately. Two concurrent tests can have the same port number, but one of them fails with binding exceptions. Passing a zero port number reduces the probability of returning the same port numbers in two different tests, because the {{ServerSocketUtil.getPort()}} will call a random port number. An example of that is as described in HDFS-15618. {{testRead()}} between {{TestBlockTokenWithDFSStriped}} and {{TestBlockTokenWithDFS}} where port 19870 is used by the two test cases. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-dev-h...@hadoop.apache.org