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Replica Shards Enabled On Single Instance-Worth Changing?
Posted: Mon Jun 25, 2018 6:42 pm
by jslawrenc
I'm new to Nagios LMS and found that the Nagios log server we're using at my work had Replica shards enabled even though we only have a single instance running. The steps to disable Replica shards looks trivial, but we're probably going to add a 2nd instance in the next 6 months or so. Is there any serious downside to leaving the Replica shards enabled while running a single instance? Has anyone ever corrupted the indices & lost log data by disabling the shard replicas?
Re: Replica Shards Enabled On Single Instance-Worth Changing
Posted: Mon Jun 25, 2018 9:53 pm
by scottwilkerson
There is no benefit to changing it, it simply won't replicate which it cannot until you have a second instance.
Re: Replica Shards Enabled On Single Instance-Worth Changing
Posted: Tue Jun 26, 2018 12:02 pm
by jslawrenc
Thanks Scott. Nagios offers instructions to disable the replica shards on a single instance-but not much detail on why it matters. I guess just so admins don't have to see that yellow warning in the cluster health status. I can live with that, LOL!!
Re: Replica Shards Enabled On Single Instance-Worth Changing
Posted: Tue Jun 26, 2018 12:25 pm
by scottwilkerson
jslawrenc wrote:Thanks Scott. Nagios offers instructions to disable the replica shards on a single instance-but not much detail on why it matters. I guess just so admins don't have to see that yellow warning in the cluster health status. I can live with that, LOL!!
That is literally the only difference.
then when you add another instance you have to remember to turn on replication