Hi, We are using solr 6.3.0 and a collection has 3 of 4 replicas down and 1 is up and serving.
I see a single line error repeating in logs as below. nothing else specific exception apart from it. Wondering what this below message is saying, is it the cause of nodes being down, but saw that this happened even before the repllicas went down. 2018-06-18 04:45:51.818 ERROR (qtp1528637575-27215) [c:poi s:shard1 r:core_node5 x:poi_shard1_replica3] o.a.s.s.PKIAuthenticationPlugin Invalid key request timestamp: 1529297138215 , received timestamp: 1529297151817 , TTL: 5000 Thanks, Satya