# Total shards, but this cluster currently has \[1000\]/\[1000\]
**URL:** https://discuss.elastic.co/t/total-shards-but-this-cluster-currently-has-1000-1000/204960
**Category:** Elasticsearch
**Created:** [October 23, 2019, 8:51pm UTC](https://discuss.elastic.co/t/total-shards-but-this-cluster-currently-has-1000-1000/204960 "2019-10-23T20:51:54Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@rbrodrigues](https://discuss.elastic.co/u/rbrodrigues)
#### Post date: [October 23, 2019, 8:51pm UTC](https://discuss.elastic.co/t/total-shards-but-this-cluster-currently-has-1000-1000/204960/1 "2019-10-23T20:51:54Z")
Hello Elasticsearch Team,
I have the following problem when I index a very large volume of data.
```
2019-10-23 17:33:52,158 ERROR 0:0:0:0:0:0:0:1 admin [LumisRequest - http-nio-8080-exec-7; url: [http://localhost:8080/portal/lumis/service/portalmanagement/servicesearchindex/DouiReindexerControllerXml.jsp]; login: [admin]] lumis.portal.bigdata.elasticsearch.ElasticsearchRepository - Could not update mapping of document type lumis_service_forum_message. Its indices ([lumisportal-null-lumis_service_forum_message, lumisportal-es-lumis_service_forum_message, lumisportal-pt_br-lumis_service_forum_message, lumisportal-en_us-lumis_service_forum_message]) will be recreated, because 'force' is 'true', and will require reindexing.
java.lang.IllegalArgumentException: Validation Failed: 1: this action would add [2] total shards, but this cluster currently has [1000]/[1000] maximum shards open;
at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validateIndexSettings(MetaDataCreateIndexService.java:629)
at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validate(MetaDataCreateIndexService.java:618)
at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$IndexCreationTask.execute(MetaDataCreateIndexService.java:286)
at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterStateUpdateTask.java:47)
at org.elasticsearch.cluster.service.MasterService.executeTasks(MasterService.java:687)
at org.elasticsearch.cluster.service.MasterService.calculateTaskOutputs(MasterService.java:310)
at org.elasticsearch.cluster.service.MasterService.runTasks(MasterService.java:210)
at org.elasticsearch.cluster.service.MasterService$Batcher.run(MasterService.java:142)
at org.elasticsearch.cluster.service.TaskBatcher.runIfNotProcessed(TaskBatcher.java:150)
at org.elasticsearch.cluster.service.TaskBatcher$BatchedTask.run(TaskBatcher.java:188)
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:681)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:252)
at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:215)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
Specifically in this passage
`java.lang.IllegalArgumentException: Validation Failed: 1: this action would add [2] total shards, but this cluster currently has [1000]/[1000] maximum shards open;`
How to solve this problem?
I have two nodes.
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [October 24, 2019, 12:03am UTC](https://discuss.elastic.co/t/total-shards-but-this-cluster-currently-has-1000-1000/204960/2 "2019-10-24T00:03:36Z")
There is a soft limit on the number of shards per data node which is set rather high at 1000. You say you have 2 nodes. How many of these are data nodes?
Having large numbers of small indices and shards can cause performance problems and instability so I would recommend you look into reducing the number of shards in your cluster. I would also recommend you read [this blog post](https://www.elastic.co/blog/how-many-shards-should-i-have-in-my-elasticsearch-cluster).
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 21, 2019, 12:05am UTC](https://discuss.elastic.co/t/total-shards-but-this-cluster-currently-has-1000-1000/204960/3 "2019-11-21T00:05:57Z")
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