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Varun Thacker commented on SOLR-12088: -------------------------------------- Hi Jerry, So if I was to put it in another way if this was the scenario then shard2's write latency will be higher? shard1 : has 3 "active" replicas shard2 : has 3 "active" replicas and 3 replicas in "down" state Can you tell me a few things about the cluster: 1. How many nodes are there in the cluster 2. Of the N nodes are there nodes that are part of the cluster but not hosting any replica of any shard on nodes 3. Are you indexing via a SolrJ based client ? 4. How are you measuring the latency? JMX ? > Shards with dead replicas cause increased write latency > ------------------------------------------------------- > > Key: SOLR-12088 > URL: https://issues.apache.org/jira/browse/SOLR-12088 > Project: Solr > Issue Type: Bug > Security Level: Public(Default Security Level. Issues are Public) > Components: SolrCloud > Affects Versions: 7.2 > Reporter: Jerry Bao > Priority: Major > > If a collection's shard contains dead replicas, write latency to the > collection is increased. For example, if a collection has 10 shards with a > replication factor of 3, and one of those shards contains 3 replicas and 3 > downed replicas, write latency is increased in comparison to a shard that > contains only 3 replicas. > My feeling here is that downed replicas should be completely ignored and not > cause issues to other alive replicas in terms of write latency. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org