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# # BUG # --- # BUG#28796: CHANGE MASTER TO MASTER_HOST="" leads to invalid master.info # # Description # ----------- # # This test aims at: # i) verifying that an error is thrown when setting MASTER_HOST='' # ii) no error is thrown when setting non empty MASTER_HOST # iii) replication works after setting a correct host name/ip # # Implementation is performed by feeding different values (according # to i), ii) and iii) ) to CHANGE MASTER TO MASTER_HOST= x and checking # along the way if error/no error is thrown and/or if replication starts # working when expected. --source include/master-slave.inc --source include/have_binlog_format_mixed.inc connection slave; STOP SLAVE; --source include/wait_for_slave_to_stop.inc let $master_host= query_get_value(SHOW SLAVE STATUS, Master_Host, 1); --echo Master_Host = '$master_host' (expected '127.0.0.1') # attempt to change to an empty master host should # result in error ER_WRONG_ARGUMENTS: "Incorrect arguments to ..." error ER_WRONG_ARGUMENTS; CHANGE MASTER TO MASTER_HOST=""; # show slave status still holds previous information let $master_host= query_get_value(SHOW SLAVE STATUS, Master_Host, 1); --echo Master_Host = '$master_host' (expected '127.0.0.1') # changing master to other than empty master host succeeds CHANGE MASTER TO MASTER_HOST="foo"; # show slave status should hold "foo" as master host let $master_host= query_get_value(SHOW SLAVE STATUS, Master_Host, 1); --echo Master_Host = '$master_host' (expected 'foo') # changing back to localhost CHANGE MASTER TO MASTER_HOST="127.0.0.1"; let $master_host= query_get_value(SHOW SLAVE STATUS, Master_Host, 1); --echo Master_Host = '$master_host' (expected '127.0.0.1') # start slave must succeed. START SLAVE; --source include/wait_for_slave_to_start.inc --source include/rpl_end.inc