If I have 2 masters in a master-master setup, where one master is the live master and the other master acts as backup in slave mode, and then during failover the slave master accepts new documents, such that indexes become out of sync, how can original live master index get back into sync with the slave master index?
To be more clear: M1 - master SOLR server in master mode accepting all new document posts M2 - master SOLR server in slave mode pulling index replicas from M1 M1 fails, so that new documents are posted to M2. M1 comes back to live, but now has index without new documents added to M1 index. How do I get M1 index back in sync with M2 index? Of course, it can be some manual copy of index directory from M2 to M1, or a re-config of M1 as a slave to pull replicas from M2 and then re-configure, etc. Is there a better or simpler way that is automatic or some other best practice? Is it possible for both M1 and M2 be configured as slaves of each other so that they try to keep indexes in sync between themselves? I am not sure how index "versioning" works with replication. Thanks Bob
