Всем привет, настроил SLAVE к одному из мастеров галеры, но

проверяя как идет синхронизация, значения Seconds_Behind_Master идут в 2 потока, один уменьшается, так как слейв догоняет, а второй увеличивается.
Я делаю подряд SHOW SLAVE STATUS \G и вижу разные истории. WTF ?

MariaDB [(none)]> SHOW SLAVE STATUS \G
*************************** 1. row ***************************
Slave_IO_State: Queueing master event to the relay log
Master_Host: master
Master_User: usr
Master_Port: 3305
Connect_Retry: 10
Master_Log_File: mariadb-bin.273926
Read_Master_Log_Pos: 72730770
Relay_Log_File: mysqld-relay-bin.000103
Relay_Log_Pos: 103909179
Relay_Master_Log_File: mariadb-bin.273879
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 103908889
Relay_Log_Space: 5003083221
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 122558
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_SSL_Crl:
Master_SSL_Crlpath:
Using_Gtid: Slave_Pos
Gtid_IO_Pos: 0-1-1077293649
Replicate_Do_Domain_Ids:
Replicate_Ignore_Domain_Ids:
Parallel_Mode: conservative
1 row in set (0.90 sec)

MariaDB [(none)]> SHOW SLAVE STATUS \G
*************************** 1. row ***************************
Slave_IO_State: Queueing master event to the relay log
Master_Host: master
Master_User: usr
Master_Port: 3305
Connect_Retry: 10
Master_Log_File: mariadb-bin.273926
Read_Master_Log_Pos: 105057253
Relay_Log_File: mysqld-relay-bin.000104
Relay_Log_Pos: 521
Relay_Master_Log_File: mariadb-bin.273879
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 104873649
Relay_Log_Space: 4930535942
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 525
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_SSL_Crl:
Master_SSL_Crlpath:
Using_Gtid: Slave_Pos
Gtid_IO_Pos: 0-1-1077294733
Replicate_Do_Domain_Ids:
Replicate_Ignore_Domain_Ids:
Parallel_Mode: conservative
1 row in set (3.49 sec)