Hello,

While our team is building out a SolrCloud solution for our product we are
still needing to maintain the product in production which uses Solr 6
(master/slave configuration).

We regularly encounter Replication failures between the slaves and the
master.  I have used the following api call to investigate and it appears
that after the failure the Solr replication state gets into a bad state
where the next scheduled replication date is in the past.  So replication
fails and stops.

      server:8080/solr/collection1/replication?command=details&wt=json

I have tried calls to disable and re-nable replications without it being
able to successfully restart replication.

>From the Solr Admin UI (server:8080/solr/old.html#/collection1/replication)
I can select the Replicate Now button. This will successfully replicate
once, but not restart the periodic replication.

Any tips?

I think if there was an api to modify the next replication date, that would
do the trick.

Thanks,
Matt

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