/usr/lib/mysql-testsuite/t/flush2.test is in percona-xtradb-cluster-testsuite-5.5 5.5.34-25.9+dfsg-0ubuntu4.
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# Bug#17733 Flushing logs causes daily server crash
#
flush logs;
set global expire_logs_days = 3;
show variables like 'log_bin%';
flush logs;
show variables like 'log_bin%';
set global expire_logs_days = 0;
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