Mongodb Slave replication lag
- by Leonid Bugaev
We using standard mongo setup: 2 replicas + 1 arbiter.
Both replica servers use same AWS m1.medium with RAID10 EBS.
We experiencing constantly growing replication lag on secondary replica.
I tried to do full-resync, you can see it on graph, but it helped only for some hours.
Our mongo usage is really low now, and frankly i can't understan why…