# sudo systemctl status mariadb -n 64

● mariadb.service - MariaDB server

   Loaded: loaded (/nix/store/4hm49xrn8md0swvc3sm9n2qhafwllgc1-unit-mariadb.service/mariadb.service)

   Active: deactivating (stop-sigterm) since Fri 2016-02-19 21:06:29 SGT; 1h 50min ago

  Process: 3189 ExecStartPre=/nix/store/m8hhisn7gag7iycddw8hflila3gi71h3-unit-script/bin/mariadb-pre-start (code=exited, status=0/SUCCESS)

 Main PID: 3640 (mysqld)

   CGroup: /system.slice/mariadb.service

           └─3640 /nix/store/z7x0ndrckrsmqr3163hp9kgs9hwags61-mariadb-10.1.11/bin/mysqld --defaults-file=/nix/store/8lgvar6h0696ngpsladkvmqwbd5k6x5v-mysqld.cnf

Feb 19 20:04:23 grumpycat mysqld[3640]: 2016-02-19 20:04:23 139653215652608 [Note] Master 'oms-my': Slave SQL thread initialized, starting replication in l...n: 3761334

Feb 19 21:06:29 grumpycat systemd[1]: Stopping MariaDB server...

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652892388096 [Note] /nix/store/z7x0ndrckrsmqr3163hp9kgs9hwags61-mariadb-10.1.11/bin/mysqld: ...l shutdown

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652892388096 [Note] Event Scheduler: Purging the queue. 0 events

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139653540129536 [Note] Master 'bob-th': Error reading relay log event: slave SQL thread was killed

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652246162176 [ERROR] Master 'bob-th': Error reading packet from server: Lost connection to M...rrno=2013)

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652246162176 [Note] Master 'bob-th': Slave I/O thread exiting, read up to log 'mysql-bin-cha...on 3256007

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139653539826432 [Note] Master 'zops': Error reading relay log event: slave SQL thread was killed

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652894509824 [ERROR] Master 'zops': Error reading packet from server: Lost connection to MyS...rrno=2013)

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652894509824 [Note] Master 'zops': Slave I/O thread exiting, read up to log 'mysql-bin-chang...sition 422

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139653999532800 [Note] Master 'bob-my': Error reading relay log event: slave SQL thread was killed

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652570942208 [ERROR] Master 'bob-my': Error reading packet from server: Lost connection to M...rrno=2013)

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652570942208 [Note] Master 'bob-my': Slave I/O thread exiting, read up to log 'mysql-bin-cha...on 3947621

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139653538310912 [Note] Master 'bob-hk': Error reading relay log event: slave SQL thread was killed

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652570336000 [ERROR] Master 'bob-hk': Error reading packet from server: Lost connection to M...rrno=2013)

Feb 19 21:06:29 grumpycat mysqld[3640]: 2016-02-19 21:06:29 139652570336000 [Note] Master 'bob-hk': Slave I/O thread exiting, read up to log 'mysql-bin-cha...on 1303108

Feb 19 21:06:30 grumpycat mysqld[3640]: 2016-02-19 21:06:30 139653217471232 [Note] Master 'bob-ph': Error reading relay log event: slave SQL thread was killed

Feb 19 21:06:30 grumpycat mysqld[3640]: 2016-02-19 21:06:30 139652892691200 [ERROR] Master 'bob-ph': Error reading packet from server: Lost connection to M...rrno=2013)

Feb 19 21:06:30 grumpycat mysqld[3640]: 2016-02-19 21:06:30 139652892691200 [Note] Master 'bob-ph': Slave I/O thread exiting, read up to log 'mysql-bin-cha...on 8157090

...

[mysqld]

basedir = /nix/store/z7x0ndrckrsmqr3163hp9kgs9hwags61-mariadb-10.1.11

init_file = /nix/store/71malbvn6kkn29yiwrsalnpirf2b6v62-init

pid_file = /run/mysqld/mysqld.pid

plugin_load = unix_socket=auth_socket.so

datadir = /mariadb/db

ignore_db_dirs = lost+found

innodb_buffer_pool_instances = 64

innodb_buffer_pool_size = 19327352832

innodb_file_format = barracuda

innodb_file_per_table = ON

innodb_flush_log_at_trx_commit = 2

innodb_flush_method = O_DIRECT

innodb_lock_wait_timeout = 1800

innodb_log_file_size = 314572800

join_buffer_size = 1048576

log_slave_updates = OFF

max_allowed_packet = 268435456

max_connections = 1000

net_read_timeout = 1000

net_write_timeout = 1000

port = 3306

relay_log = /mariadb/relay/cat-bin

server_id = 112233

skip_log_bin

slave_compressed_protocol = ON

slave_domain_parallel_threads = 10

slave_net_timeout = 600

slave_parallel_max_queued = 8388608

slave_parallel_threads = 40

sort_buffer_size = 4194304

ssl_cert = /nix/store/rmlq71y8fnyx1k7sp3qx55fqwg45pl40-cats-cert.pem

ssl_key = /run/keys/cats-key.pem

table_open_cache = 30000

; replicate_*

!include /nix/store/czaiav63ddqrz18sizhfy69jvv04nfcn-mysqld-repl.cnf