Hi there, Looking for a graceful way to restart a node in solr9, please help!
On Mon, Sep 2, 2024 at 5:21 PM Saksham Gupta <saksham.gu...@indiamart.com> wrote: > Hi All, > We have encountered an issue while upgrading our solr cloud from v8.10 to > v9.6.1. We use a collection with 56 shards [each having a single replica], > hosted across a cluster of 8 nodes. Solr queries contain _route_ parameter > to decide which shards/ replicas will be used for the respective query. > > *Problem Description:* > > In solr8 if we stop/ restart a node for a maintenance activity, we did not > encounter any 5xx, but on solr9 we are facing multiple 5xx. > On further debugging, we noticed that all the queries which are being > routed to *different shards of a single node* [which is stopped], are > returning 5xx which was not the case in solr 8. On replicating this on > solr8, the queries are simply returning with partialResults=true flag and 0 > results. > Important to note that if a solr 9 query is being routed to multiple > shards out of which shard is present on some other node, it will be > returned with partialResults=true and status=0, and 5xx is returned only if > query is routed to shards of a single node [which is stopped]. > > *1. Is someone aware of any changes done in solr9, to handle such cases?* > *2. Is there a way to avoid 5xx in these cases on solr9 as well?* >
