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From "Daniel Voros (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SQOOP-3283) MySQL thirdparty tests hang if there's no USER environment variable
Date Tue, 06 Feb 2018 10:58:00 GMT
Daniel Voros created SQOOP-3283:
-----------------------------------

             Summary: MySQL thirdparty tests hang if there's no USER environment variable
                 Key: SQOOP-3283
                 URL: https://issues.apache.org/jira/browse/SQOOP-3283
             Project: Sqoop
          Issue Type: Bug
          Components: connectors/mysql, test
    Affects Versions: 1.4.7
            Reporter: Daniel Voros
            Assignee: Daniel Voros


{{org.apache.sqoop.manager.mysql.MySQLTestUtils#getCurrentUser()}} executes {{whoami}} in
a subprocess if there's no USER environment variable (happened to me while running tests from
Docker). However, it waits for the Process variable to become null, that never happens:
{code:java}
// wait for whoami to exit.
while (p != null) {
  try {
    int ret = p.waitFor();
    if (0 != ret) {
      LOG.error("whoami exited with error status " + ret);
      // suppress original return value from this method.
      return null;
    }
  } catch (InterruptedException ie) {
    continue; // loop around.
  }
}
{code}
We could get rid of the while loop since {{Process#waitFor()}} blocks while it completes.

Note, that it's easy to workaround the issue by setting the USER environment variable when
running the tests.



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