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Review request for Sqoop. Bugs: SQOOP-3283 https://issues.apache.org/jira/browse/SQOOP-3283 Repository: sqoop-trunk Description ------- `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: ``` // 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. } } ``` 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. Diffs ----- src/test/org/apache/sqoop/manager/mysql/MySQLTestUtils.java 25dbe9d Diff: https://reviews.apache.org/r/65530/diff/1/ Testing ------- Run `org.apache.sqoop.manager.mysql.MySQLCompatTest`. Failed with timout without the patch. All 46 test cases pass in ~45 seconds with the patch in place. Thanks, daniel voros