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https://issues.apache.org/jira/browse/SOLR-14235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cassandra Targett resolved SOLR-14235.
--------------------------------------
Resolution: Won't Fix
The autoscaling framework has been removed from Solr, so this can be resolved
as Won't Fix.
> Node lost event does not delete all replicas from the nodes are being deleted
> ------------------------------------------------------------------------------
>
> Key: SOLR-14235
> URL: https://issues.apache.org/jira/browse/SOLR-14235
> Project: Solr
> Issue Type: Bug
> Affects Versions: 7.7.2
> Reporter: jawlit patel
> Priority: Critical
>
> Hello,
>
> Node lost event does not delete all replicas from the nodes are being deleted
> when a higher number of collections & replicas. This is really blocking the
> implementation of solr on autoscaling groups where nodes are being added &
> removed. All events are working fine when very few(3-4) collections and
> replicas but we started adding more collections and replicas to the cluster,
> we started seeing the cluster is not maintaining the desired state. during
> scale down, nodes are being removed but replicas pointing to the nodes are
> still there in down status. The only way it works is manually deleting them
> from admin UI.
>
> have added the following policies
> curl -X POST "http://localhost:8983/solr/admin/autoscaling"; --data-binary \
> '
> { "set-cluster-policy": [ \\{ "replica": "1","shard": "#EACH", "node":
> "#EACH" }
> ]
> }'
> curl -X POST "http://localhost:8983/solr/admin/autoscaling"; --data-binary \
> '{
> "set-trigger":
> { "name": "node_added_trigger", "event": "nodeAdded", "waitFor": "5s",
> "preferredOperation": "ADDREPLICA" }
> }'
> curl -X POST "localhost:8983/solr/admin/autoscaling" --data-binary \
> '{
> "set-trigger":
> { "name": "node_lost_trigger", "event": "nodeLost", "waitFor": "600s",
> "preferredOperation": "DELETENODE" }
> }'
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