SHARDING [Balancer] caught exception while doing balance: Server’s sharding
metadata manager failed to initialize and will remain in this state until
the instance is manually reset :: caused by :: HostNotFound: unable to
resolve DNS for host confserv_1.xyz.com
I believe the main issue is the inability of the mongos process to connect
to the config server confserv_1.xyz.com due to DNS issues. Is this a
constant issue, or is it intermittent?
When i connect config server using host name it is working fine.
Did you try to connect to confserv_1.xyz.com from the machine that is
hosting the mongos process? Also, how did you determine that the connection
between the two machines are fine (i.e. using ping, connecting using the
mongo shell, etc.)?
I tried to restart MOngoS server it is not coming up.
Is there any error messages in the mongos log that shows the reason why it
cannot be started?
If you are still having issues, could you please provide:
- your MongoDB version
- your deployment topology (i.e. how many config servers, how many mongos,
whether all mongos is having this issue, etc.)
- the output of db.serverCmdLineOpts() from the mongos processes
- the output of sh.status()
- any error messages in the logs (mongod and mongos)
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