Error Report

I am getting following error in log. What does this mean.

=ERROR REPORT==== Date Time ===
Discarding message replaced from <0.1080.0> to <0.2705.0> in an old incarnation (1) of this node (3)

=ERROR REPORT==== Date Time ===
Discarding message {route,{jid,"username1","hostname","Pandion","username1","hostname","Pandion"},{jid,"username2","hostname","Pandion","username2","hostname","Pandion"},{xmlelement,"presence",[{"xml:lang","en"}],[{xmlelement,"x",[{"xmlns","jabber:x:avatar"}],[{xmlelement,"hash",[],[{xmlcdata,<<40 bytes>>}]}]},{xmlelement,"priority",[],[{xmlcdata,<<1 byte>>}]}]}} from <0.508.0> to <0.2724.0> in an old incarnation (1) of this node (3)

However when I check realtime, both users are not chatting with each other.

I found this solution in an

I found this solution in an old thread in the ejabberd mailing list:

> Several mnesia tables MUST be RAM copies only.
> They are: presence, route, s2s, session .
> Thanks to Alexey Shchepin and Anastasia Gornostaeva.

pls elaborate

Where is this option/module ? Can you pls elaborate more ...?

In the Web Admin

You can change the storage type of the mnesia tables in ejabberd Web Admin -> Nodes -> your node -> Database.

mod_presence is not installed

route, s2s, session are already as Ram and Disc copy.
However I was unable to locate "presence". mod_presence is not installed on my server.

The error reporting is still same ...Logs are getting bigger.

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