Dear Mongo

I have 3 mongo:

Mongo Master: 10.10.10.10

Mongo Slave: 10.10.10.11

Mongo Arbiter: 10.10.10.12

Mongo slave telnet 10.10.10.10 27017 --> Done. But show rs.status() on master, mongo slave status is STARTUP2.

Check in master /var/log/mongodb.log --> Flow control is engaged and the sustainer point is not moving. Please check the health of all secondaries

Check app connect DB: --> connection refused calling ismaster