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https://issues.apache.org/jira/browse/SOLR-11676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307028#comment-16307028
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Varun Thacker commented on SOLR-11676:
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The create collection API allows passing both replicationFactor and nrtReplicas
today unfortunately.
So with this API call
{{action=create&name=test_collection&replicationFactor=3&nrtReplicas=2&numShards=1}}
I get a state.json like this and in reality it creates a 2 replica collection
{code}
{"test_collection":{
"pullReplicas":"0",
"replicationFactor":"3",
"router":{"name":"compositeId"},
"maxShardsPerNode":"1",
"autoAddReplicas":"false",
"nrtReplicas":"2",
"tlogReplicas":"0",
{code}
> nrt replicas is always 1 when not specified
> -------------------------------------------
>
> Key: SOLR-11676
> URL: https://issues.apache.org/jira/browse/SOLR-11676
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Varun Thacker
> Attachments: SOLR-11676.patch
>
>
> I created 1 2 shard X 2 replica collection . Here's the log entry for it
> {code}
> 2017-11-27 06:43:47.071 INFO (qtp159259014-22) [ ]
> o.a.s.h.a.CollectionsHandler Invoked Collection Action :create with params
> replicationFactor=2&routerName=compositeId&collection.configName=_default&maxShardsPerNode=2&name=test_recovery&router.name=compositeId&action=CREATE&numShards=2&wt=json&_=1511764995711
> and sendToOCPQueue=true
> {code}
> And then when I look at the state.json file I see nrtReplicas is set to 1.
> Any combination of numShards and replicationFactor without explicitly
> specifying the "nrtReplicas" param puts the "nrtReplicas" as 1 instead of
> using the replicationFactor value
> {code}
> {"test_recovery":{
> "pullReplicas":"0",
> "replicationFactor":"2",
> ...
> "nrtReplicas":"1",
> "tlogReplicas":"0",
> ..
> {code}
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