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https://issues.apache.org/jira/browse/SOLR-7400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Erick Erickson resolved SOLR-7400.
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Resolution: Invalid
This is both very old and almost certainly a configuration issue, dataDirs are
not shared amongst multiple replicas on the same node.
> Collection creation fails when over-provisioning maxShardsPerNode > 1
> ---------------------------------------------------------------------
>
> Key: SOLR-7400
> URL: https://issues.apache.org/jira/browse/SOLR-7400
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.10.3
> Environment: HDP 2.2 / HDP Search
> Reporter: Hari Sekhon
> Priority: Major
>
> When trying to overprovision shards I've encountered an issue before where
> the additional shards are trying to use the same dataDir resulting in failure
> to obtain locks for those additional shard replicas:
> {code}curl
> 'http://host:8983/solr/admin/collections?action=CREATE&name=test&numShards=6&maxShardsPerNode=6&replicationFactor=2&wt=json&indent=true'
> {
> "responseHeader":{
> "status":0,
> "QTime":3925},
> "failure":{
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard1_replica2': Unable to create core
> [test_shard1_replica2] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock",
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard6_replica1': Unable to create core
> [test_shard6_replica1] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock",
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard5_replica2': Unable to create core
> [test_shard5_replica2] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock",
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard2_replica1': Unable to create core
> [test_shard2_replica1] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock",
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard3_replica2': Unable to create core
> [test_shard3_replica2] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock",
>
> "":"org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:Error
> CREATEing SolrCore 'test_shard4_replica1': Unable to create core
> [test_shard4_replica1] Caused by: Lock obtain timed out:
> NativeFSLock@/data1/solr/test/index/write.lock"},
> "success":{
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3225},
> "core":"test_shard5_replica1"},
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3234},
> "core":"test_shard6_replica2"},
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3248},
> "core":"test_shard1_replica1"},
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3433},
> "core":"test_shard4_replica2"},
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3620},
> "core":"test_shard3_replica1"},
> "":{
> "responseHeader":{
> "status":0,
> "QTime":3800},
> "core":"test_shard2_replica2"}}}
> {code}
> It's not clear given this how you could have more than one shard per node to
> pre-provision for anticipated node growth.
> Hari Sekhon
> http://www.linkedin.com/in/harisekhon
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