MTR2 has brought some new utility that can improve testing, but also some elements that can be pitfalls. This section attempts to describe both.
Changes
$MYSQLTEST_VARDIR/master-data -> $MYSQLD_DATADIR
New options
max-test-fail: The number of test cases that can fail before the test run aborts. Default=10, set to 0 to continue the run regardless of failure count.
