We have 1 master(x data centre) 2 slave(Y data centre) servers replicating over cross data centres. Sometimes in slave1 if we executes show slave status\G then seconds behind master is showing as '0' within a moment it is showing '1000+' seconds delay.We have checked master log file in master side(mysql-bin.008276) and slave side(mysql-bin.008270) . But in slave2 we couldn't see this issue. slave2 is working fine.
I would request you to check this scenario and give me a solution to find the issue.