Hi everyone, We have SolrCloud cluster with 3 zk and 3 solr nodes. It's 1 shard only and all replicas are PULL. We have bulk updates so like once a day we reindex all cores (no soft commits, only hard commit every 15s), do commit with openSearcher=true and all our indexes become available for search.
The issue is that for PULL replication when leader reindexing starts it downloads index every hard commit / 2 seconds (o.a.s.h.ReplicationHandler Poll scheduled at an interval of 7000ms) then puts index into proper directory and just reopens searcher so that we see no changes on leader because there was no commit with openSearcher=true yet and that index keeps growing on PULL replicas. Judging by this page <https://lucene.apache.org/solr/guide/7_7/index-replication.html#index-replication-in-solr> there's no setting for pollInterval or when to start replication on slaves in SolrCloud and the info is rather confusing because in cloud we still use the same handlers which we cannot configure. We changed replication from NRT to PULL because we don't need realtime and burn CPU with bulk updates on every machine, but this constantly catching up index on slaves isn't any better... Do you know any way to fix it?
