# Metricbeat Http Module mapping error (Can't merge a non object mapping \[http.json\_namespace.classes\] with an object mapping \[http.json\_namespace.classes\] )

**URL:** <https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322>\
**Category:** Beats\
**Tags:** metricbeat\
**Created:** [January 16, 2020, 1:53pm UTC](https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322 "2020-01-16T13:53:17Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![fnkbz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/fnkbz/32/60903_2.png) [@fnkbz](https://discuss.elastic.co/u/fnkbz)\
**Post date:** [January 16, 2020, 1:53pm UTC](https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322/1 "2020-01-16T13:53:18Z")

</div>

I am running elasticsearch 7.5, kibana 7.5 and Metricbeat 7.5. I have enabled metricbeat's http module to get data from a spring boot app. Here is my metricbeat.yml http module snippet

```
#--------------------------------- HTTP Module ---------------------------------
- module: http
  metricsets: ["json"]
  period: 60s
  hosts: ["localhost:9998"]
  namespace: "json_namespace"
  path: "/metrics"
  method: "GET"

```

I get this error when it tries to fetch data from the http module

```
[2020-01-16T13:28:11,059][DEBUG][o.e.a.b.TransportShardBulkAction] [elasticstage1] [metricbeat-2020.01.16-000001][0] failed to execute bulk item (create) index {[metricbeat][_doc][wQiKrm8BkKjJO7a7Nkwx], source[n/a, actual length: [5.9kb], max length: 2kb]}
java.lang.IllegalArgumentException: Can't merge a non object mapping [http.json_namespace.classes] with an object mapping [http.json_namespace.classes]
	at org.elasticsearch.index.mapper.ObjectMapper.merge(ObjectMapper.java:439) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.ObjectMapper.merge(ObjectMapper.java:47) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentParser.createDynamicUpdate(DocumentParser.java:237) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentParser.parseDocument(DocumentParser.java:83) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:267) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.prepareIndex(IndexShard.java:776) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.applyIndexOperation(IndexShard.java:753) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.applyIndexOperationOnPrimary(IndexShard.java:725) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.executeBulkItemRequest(TransportShardBulkAction.java:258) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction$2.doRun(TransportShardBulkAction.java:161) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.performOnPrimary(TransportShardBulkAction.java:193) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:118) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:79) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:917) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:108) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.runWithPrimaryShardReference(TransportReplicationAction.java:394) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.lambda$doRun$0(TransportReplicationAction.java:316) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener$1.onResponse(ActionListener.java:63) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.lambda$wrapPrimaryOperationPermitListener$21(IndexShard.java:2752) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener$3.onResponse(ActionListener.java:113) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:285) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:237) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationPermit(IndexShard.java:2726) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryOperationPermit(TransportReplicationAction.java:858) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:312) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction.handlePrimaryRequest(TransportReplicationAction.java:275) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.xpack.security.transport.SecurityServerTransportInterceptor$ProfileSecuredRequestHandler$1.doRun(SecurityServerTransportInterceptor.java:257) [x-pack-security-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.xpack.security.transport.SecurityServerTransportInterceptor$ProfileSecuredRequestHandler.messageReceived(SecurityServerTransportInterceptor.java:315) [x-pack-security-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:63) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:752) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:773) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.5.0.jar:7.5.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
[2020-01-16T13:29:11,062][DEBUG][o.e.a.b.TransportShardBulkAction] [elasticstage1] [metricbeat-2020.01.16-000001][0] failed to execute bulk item (create) index {[metricbeat][_doc][9wiLrm8BkKjJO7a7IF6R], source[n/a, actual length: [5.9kb], max length: 2kb]}
java.lang.IllegalArgumentException: mapper [http.json_namespace.classes] of different type, current_type [long], merged_type [ObjectMapper]
	at org.elasticsearch.index.mapper.FieldMapper.doMerge(FieldMapper.java:352) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.NumberFieldMapper.doMerge(NumberFieldMapper.java:1081) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.FieldMapper.merge(FieldMapper.java:339) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.FieldMapper.merge(FieldMapper.java:55) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentParser.createDynamicUpdate(DocumentParser.java:237) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentParser.parseDocument(DocumentParser.java:83) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:267) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.prepareIndex(IndexShard.java:776) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.applyIndexOperation(IndexShard.java:753) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.applyIndexOperationOnPrimary(IndexShard.java:725) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.executeBulkItemRequest(TransportShardBulkAction.java:258) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction$2.doRun(TransportShardBulkAction.java:161) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.performOnPrimary(TransportShardBulkAction.java:193) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:118) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:79) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:917) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:108) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.runWithPrimaryShardReference(TransportReplicationAction.java:394) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.lambda$doRun$0(TransportReplicationAction.java:316) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener$1.onResponse(ActionListener.java:63) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.lambda$wrapPrimaryOperationPermitListener$21(IndexShard.java:2752) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener$3.onResponse(ActionListener.java:113) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:285) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:237) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationPermit(IndexShard.java:2726) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryOperationPermit(TransportReplicationAction.java:858) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:312) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.support.replication.TransportReplicationAction.handlePrimaryRequest(TransportReplicationAction.java:275) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.xpack.security.transport.SecurityServerTransportInterceptor$ProfileSecuredRequestHandler$1.doRun(SecurityServerTransportInterceptor.java:257) [x-pack-security-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.xpack.security.transport.SecurityServerTransportInterceptor$ProfileSecuredRequestHandler.messageReceived(SecurityServerTransportInterceptor.java:315) [x-pack-security-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:63) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:752) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:773) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.5.0.jar:7.5.0]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_222]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_222]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]

```

From the above stacktrace it seems like it tries to create the same fields with a different type. I didnt mess with anything else like fields.yml. Any help?

---

<div class="post-metadata">

**Author:** ![fnkbz](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/fnkbz/32/60903_2.png) [@fnkbz](https://discuss.elastic.co/u/fnkbz)\
**Post date:** [January 20, 2020, 7:57am UTC](https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322/2 "2020-01-20T07:57:21Z")

</div>

Ok! The error occured due to dots in the json document. With the flag dedot.enabled of the http module it works fine! Problem solved

---

<div class="post-metadata">

**Author:** ![Mario\_Castro](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mario_castro/32/35107_2.png) [@Mario\_Castro](https://discuss.elastic.co/u/Mario_Castro)\
**Post date:** [January 21, 2020, 12:53pm UTC](https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322/3 "2020-01-21T12:53:21Z")

</div>

Awesome! Thank you for posting!

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 18, 2020, 12:53pm UTC](https://discuss.elastic.co/t/metricbeat-http-module-mapping-error-cant-merge-a-non-object-mapping-http-json-namespace-classes-with-an-object-mapping-http-json-namespace-classes/215322/4 "2020-02-18T12:53:24Z")

</div>

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