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5.6.x and show slave status
Posted by: Eugene Zheganin
Date: April 22, 2013 04:56AM


I'm using 5.6.x as a slave to 5.5.x (it's a replication chain).
MTS is off:

mysql> show variables like '%work%';
| Variable_name | Value |
| skip_networking | OFF |
| slave_parallel_workers | 0 |
2 rows in set (0.01 sec)

However, when I ussue a 'show slave status' command repeatedly, in the situation when the slave has a lag (for example lost of network connectivity or slave was used for backing up a large database and some tables were locked) the seconds_behind_master field shows different numbers. For example it can show hundreds of seconds and then thousands of seconds, switching between them. Bot numbers decrease until they become 0 at some moment. No question about zero, but why there are two numbers when MTS is off ? I tried to find an answer in Mysql documentation, but didn't succeed.


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5.6.x and show slave status
April 22, 2013 04:56AM
April 23, 2013 07:45AM

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