./switchover.py --skip-slave-move db1111 db1112
Starting preflight checks...
* Original read only values are as expected (master: read_only=0, slave: read_only=1)
* The host to fail over is a direct replica of the master
* Replication is up and running between the 2 hosts
* The replication lag is acceptable: 0 (lower than the configured or default timeout)
* The master is not a replica of any other host
----- OUTPUT of '/bin/ps --no-hea...pid,args -C perl' -----                              
 3301 /usr/bin/perl /usr/local/bin/pt-heartbeat-wikimedia --defaults-file=/dev/null --user=root --host=localhost -D heartbeat --shard=test-s4 --datacenter=eqiad --update --replace --interval=1 --set-vars=binlog_format=STATEMENT -S /run/mysqld/mysqld.sock --daemonize --pid /var/run/pt-heartbeat.pid
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  2.96hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/ps --no-hea...pid,args -C perl'.                                                                              
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
Stopping heartbeat pid 3301 at db1111.eqiad.wmnet:3306/(none)
----- OUTPUT of '/bin/kill 3301' -----                                                   
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.14hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/kill 3301'.
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
Setting up original master as read-only
Slave caught up to the master after waiting 0.008825302124023438 seconds
Servers sync at master: db1111-bin.000285:24750836 slave: db1112-bin.000258:561179
Stopping original master->slave replication
Setting up replica as read-write
All commands where successful, current status: original master read_only: 1 / original slave read_only: 0
Trying to invert replication direction
Starting heartbeat section test-s4 at db1112.eqiad.wmnet
----- OUTPUT of '/usr/bin/nohup /...d &> /dev/null &' -----                              
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.10hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/usr/bin/nohup /...d &> /dev/null &'.                                                                              
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
----- OUTPUT of '/bin/ps --no-hea...pid,args -C perl' -----                              
 3613 /usr/bin/perl /usr/local/bin/pt-heartbeat-wikimedia --defaults-file=/dev/null --user=root --host=localhost -D heartbeat --shard=test-s4 --datacenter=eqiad --update --replace --interval=1 --set-vars=binlog_format=STATEMENT -S /run/mysqld/mysqld.sock --daemonize --pid /var/run/pt-heartbeat.pid
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.13hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/ps --no-hea...pid,args -C perl'.                                                                              
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
Detected heartbeat at db1112.eqiad.wmnet running with PID 3613
Verifying everything went as expected...
SUCCESS: Master switch completed successfully
root@cumin1001:~/wmfmariadbpy/wmfmariadbpy$ ./switchover.py --skip-slave-move db1112 db1111
Starting preflight checks...
* Original read only values are as expected (master: read_only=0, slave: read_only=1)
* The host to fail over is a direct replica of the master
* Replication is up and running between the 2 hosts
* The replication lag is acceptable: 0 (lower than the configured or default timeout)
* The master is not a replica of any other host
----- OUTPUT of '/bin/ps --no-hea...pid,args -C perl' -----                              
 3613 /usr/bin/perl /usr/local/bin/pt-heartbeat-wikimedia --defaults-file=/dev/null --user=root --host=localhost -D heartbeat --shard=test-s4 --datacenter=eqiad --update --replace --interval=1 --set-vars=binlog_format=STATEMENT -S /run/mysqld/mysqld.sock --daemonize --pid /var/run/pt-heartbeat.pid
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.14hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/ps --no-hea...pid,args -C perl'.                                                                              
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
Stopping heartbeat pid 3613 at db1112.eqiad.wmnet:3306/(none)
----- OUTPUT of '/bin/kill 3613' -----                                                   
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.97hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/kill 3613'.
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.                                                                                     
Setting up original master as read-only
Slave caught up to the master after waiting 0.008609294891357422 seconds
Servers sync at master: db1112-bin.000258:566093 slave: db1111-bin.000285:24755750
Stopping original master->slave replication
Setting up replica as read-write
All commands where successful, current status: original master read_only: 1 / original slave read_only: 0
Trying to invert replication direction
Starting heartbeat section test-s4 at db1111.eqiad.wmnet
----- OUTPUT of '/usr/bin/nohup /...d &> /dev/null &' -----                              
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.05hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/usr/bin/nohup /...d &> /dev/null &'.
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.
----- OUTPUT of '/bin/ps --no-hea...pid,args -C perl' -----                              
32398 /usr/bin/perl /usr/local/bin/pt-heartbeat-wikimedia --defaults-file=/dev/null --user=root --host=localhost -D heartbeat --shard=test-s4 --datacenter=eqiad --update --replace --interval=1 --set-vars=binlog_format=STATEMENT -S /run/mysqld/mysqld.sock --daemonize --pid /var/run/pt-heartbeat.pid
================                                                                         
PASS:  |████████████████████████████████████| 100% (1/1) [00:00<00:00,  3.12hosts/s]     
FAIL:  |                                            |   0% (0/1) [00:00<?, ?hosts/s]     
100.0% (1/1) success ratio (>= 100.0% threshold) for command: '/bin/ps --no-hea...pid,args -C perl'.
100.0% (1/1) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.
Detected heartbeat at db1111.eqiad.wmnet running with PID 32398
Verifying everything went as expected...
SUCCESS: Master switch completed successfully