Thank you so much Erick. Will check these out. Regards, Rohan Kasat
On Tue, Jun 4, 2019 at 12:54 PM Erick Erickson <erickerick...@gmail.com> wrote: > > (t’s usually far easier to create a new collection in your upper > environment and index to _that_. Once the indexing is done, use the > Collections API CREATEALIAS command to point traffic to the new collection. > You can then use the old one to index to and use CREATEALIAS to point to > that one, switching back and forth as necessary. > > > If that’s not possible, try is the low-level replication API call. > WARNING, “this should work”, but I haven’t tried it.….. > > See “HTTP API Commands for the Replication Handler” here: > https://lucene.apache.org/solr/guide/7_6/index-replication.html > > You do _not_ need to set up replication in solrconfig.xml or the like. You > want to use “fetchIndex”. Tricks: > > 1> you must issue this command _to the core_ you want the index copied to. > This will be something like “ > http://blahlbah/solr/collection1_shard1_replica_n2”. Specify the > masterURL as the core you want to copy _from_, i.e. your lower environment. > > 2> Have one and only one replica for each shard running in your higher > environment. This will be “leader only”, i.e. no followers. Once you’ve > successfully moved the index, bring up any other replicas (or use > ADDREPLICA). When they come up they’ll replicate down from the leader. > > 3> Be very, very careful that you copy the indexes from exactly the same > shard, as defined by the range in state.json associated with each shard. > > An alternative is to shut down both systems and just copy the data dir > (tlog and index) files manually from the lower to upper. You’d need your > upper collection to be completely shut down. Again, copy the files to one > replica of each shard then bring _only_ that replica up. Once it’s decided > to be the leader, bring the other replicas up or ADDREPLICA, whichever is > easier. > > > > On Jun 4, 2019, at 11:36 AM, Rohan Kasat <rohan.ka...@gmail.com> wrote: > > > > Hi, > > > > In our setup we have two SolrCloud environments running Solr 7.5 version. > > Specific to the question - We have one collection with 3 shards and 3 > > replicas on the lower environment and a newly created mirrored collection > > on Production. > > Wanted to know on approaches to copy the index for collection from cloud > on > > lower environment to Production solrcloud instance ? > > > > -- > > > > *Regards,Rohan Kasat* > > -- *Regards,Rohan Kasat*
