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https://issues.apache.org/jira/browse/SOLR-13142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16748540#comment-16748540
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Lyle commented on SOLR-13142:
-----------------------------
after add below Cluster Policies via /admin/autoscaling, new collection's
replica will be put in two different nodes.
{code:java}
{
"set-cluster-policy": [
{"replica": "<2", "shard": "#EACH", "node": "#ANY"}
]
}
{code}
hence, close this ticket as its expected behavior.
> Create Collection will put two replicas in same node
> ----------------------------------------------------
>
> Key: SOLR-13142
> URL: https://issues.apache.org/jira/browse/SOLR-13142
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Affects Versions: 7.6
> Reporter: Lyle
> Priority: Major
> Attachments: CLUSTERSTATUS.json, autoscaling.json, diagnostics.json
>
>
> I have a solr cluster with two nodes, and both of them are alive.
> Solr cluster:
> [http://10.58.91.47:8082/search]
> [http://10.58.91.83:8082/search]
>
> In solr7.5 when create a collection in two nodes cluster with shards=1 and
> replicationFactor=2, each node will have a replica.
> However, in solr7.6, when use same request to create collection, two replicas
> will be put in same solr node.
> example:
> create collection request:
> [http://10.58.91.47:8082/search/admin/collections?action=CREATE&name=NewCollection&numShards=1&replicationFactor=2&collection.configName=conf&shards=shard1&maxShardsPerNode=1]
> response:
> {code:java}
> {
> "responseHeader": {
> "status": 0,
> "QTime": 5392
> },
> "success": {
> "10.58.91.47:8082_search": {
> "responseHeader": {
> "status": 0,
> "QTime": 2584
> },
> "core": "NewCollection_shard1_replica_n1"
> }
> }
> }
> {code}
> use clusterstatus request to query replica info:
> request:
> [http://10.58.91.83:8082/search/admin/collections?action=CLUSTERSTATUS&collection=NewCollection]
> response:
> {code:java}
> Tree
> Chart
> JSON Input
> {
> "responseHeader": {
> "status": 0,
> "QTime": 8
> },
> "cluster": {
> "collections": {
> "NewCollection": {
> "pullReplicas": "0",
> "replicationFactor": "2",
> "shards": {
> "shard1": {
> "range": "80000000-7fffffff",
> "state": "active",
> "replicas": {
> "core_node3": {
> "core": "NewCollection_shard1_replica_n1",
> "base_url": "http://10.58.91.47:8082/search";,
> "node_name": "10.58.91.47:8082_search",
> "state": "active",
> "type": "NRT"
> },
> "core_node4": {
> "core": "NewCollection_shard1_replica_n2",
> "base_url": "http://10.58.91.47:8082/search";,
> "node_name": "10.58.91.47:8082_search",
> "state": "active",
> "type": "NRT",
> "leader": "true"
> }
> }
> }
> },
> "router": {
> "name": "compositeId"
> },
> "maxShardsPerNode": "1",
> "autoAddReplicas": "false",
> "nrtReplicas": "2",
> "tlogReplicas": "0",
> "znodeVersion": 4,
> "configName": "conf"
> }
> },
> "properties": {
> "legacyCloud": "true"
> },
> "live_nodes": [
> "10.58.91.47:8082_search",
> "10.58.91.83:8082_search"
> ]
> }
> }
> {code}
> Is there any change for solr7.6 since I have not find any create collection
> API changes from document.
> Could anyone please provide help?
>
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