Please review: http://wiki.apache.org/solr/UsingMailingLists
There isn't nearly enough information here to even begin to help. And have you looked at the Solr logs for the replicas that are down to try to diagnose the underlying issue? Best, Erick On Fri, Aug 26, 2016 at 6:45 PM, Hardika Catur S < hardika.sa...@solusi247.com.invalid> wrote: > Hi, > > I find problems in collection status in apache solr, > when solr restart some collection status to "down". It happened at server > 00 and 01. > how to turn some of the collection?? > > > > Please help me to find a solution. > > Thanks, > Hardika CS. >