private ProcessResults runCmdAndPrintStreams(String[] cmd, long secondsToWait)
            throws InterruptedException, IOException {
        ProcessResults results = runCmd(cmd, secondsToWait);
        LOG.info("Stdout from proc: " + results.stdout);
        LOG.info("Stderr from proc: " + results.stderr);
        return results;
    }
The class is in charge of connecting and populating dockerized databases for qtest.

The database should have at least one root user (admin/superuser) able to modify every aspect of the system. The user
either exists by default when the database starts or must created right after startup.
itests/util/src/main/java/org/apache/hadoop/hive/ql/externalDB/AbstractExternalDB.java