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https://issues.apache.org/jira/browse/SOLR-6598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14176053#comment-14176053
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Anurag Sharma commented on SOLR-6598:
-------------------------------------
Is it specific to MacOS? Case sensitive names are supported by most of the OS.
> Solr Collections API, case sensitivity of collection name and
> core's/replica's instance directory
> -------------------------------------------------------------------------------------------------
>
> Key: SOLR-6598
> URL: https://issues.apache.org/jira/browse/SOLR-6598
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.10.1
> Environment: Mac OS X
> Reporter: Alexey Serba
> Priority: Trivial
>
> Solr Collections API returns misleading error when trying to create two
> collections with the same name but with different case on MacOS file system
> (which is case insensitive).
> {noformat}
> sh> curl
> 'http://localhost:8983/solr/admin/collections?action=CREATE&name=test&numShards=1&collection.configName=default&indent=true&wt=json'
> {
> "responseHeader":{
> "status":0,
> "QTime":1949},
> "success":{
> "":{
> "responseHeader":{
> "status":0,
> "QTime":1833},
> "core":"test_shard1_replica1"}}}
> sh> curl
> 'http://localhost:8983/solr/admin/collections?action=CREATE&name=TEST&numShards=1&collection.configName=default&indent=true&wt=json'
> {
> "responseHeader":{
> "status":0,
> "QTime":2509},
> "failure":{
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'TEST_shard1_replica1': Unable to create core
> [TEST_shard1_replica1] Caused by: Lock obtain timed out:
> NativeFSLock@/Users/alexey/Desktop/solr-4.10.1/node1/solr/test_shard1_replica1/data/index/write.lock"}}
> {noformat}
> See {{Lock obtain timed out}} exception. It will be more user friendly to
> check existence of instance dir {{test_shard1_replica1}} and return something
> like "Node A has replica B that uses the same index directory" exception
> (instead of just trying to hijack that existing directory and then
> propagating the inexplicable lock exception that arises as a result).
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