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https://issues.apache.org/jira/browse/SQOOP-3283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353790#comment-16353790
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Daniel Voros commented on SQOOP-3283:
-------------------------------------
Adding review request link.
> 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
> Priority: Minor
> Attachments: SQOOP-3283.1.patch
>
>
> {{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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