# Field \[\_id\] is a metadata field and cannot be added inside a document

**URL:** <https://discuss.elastic.co/t/field-id-is-a-metadata-field-and-cannot-be-added-inside-a-document/125898>\
**Category:** Elasticsearch\
**Created:** [March 28, 2018, 9:39am UTC](https://discuss.elastic.co/t/field-id-is-a-metadata-field-and-cannot-be-added-inside-a-document/125898 "2018-03-28T09:39:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![satyarajp](https://avatars.discourse-cdn.com/v4/letter/s/90db22/32.png) [@satyarajp](https://discuss.elastic.co/u/satyarajp)\
**Post date:** [March 28, 2018, 9:39am UTC](https://discuss.elastic.co/t/field-id-is-a-metadata-field-and-cannot-be-added-inside-a-document/125898/1 "2018-03-28T09:39:32Z")

</div>

Hi Team,

I've found some references with no luck to resolve the \_id field error.  
Please help me with following.

Below is complete log trace. And I'm trying to set json source like this while persisting document in ES index. This is exactly when i try to **reindex**  
While my index doesn't contain '\_id' and also mapper object. But I'm not sure how come after converting to json it is getting '\_id' appended.

```
IndexResponse rval = client.prepareIndex().setId(content.getId())
				.setType(CONTENT_TYPE).setIndex(INDEX)
				.setSource(json(content), XContentType.JSON).execute()
				.actionGet();

```

Where Json is generated from

```
import com.fasterxml.jackson.databind.ObjectMapper;
protected static ObjectMapper mapper = new ObjectMapper(); 
String json = mapper.writeValueAsString(v);

```

Now the Log says

```
org.elasticsearch.index.mapper.MapperParsingException: Field [_id] is a metadata field and cannot be added inside a document. Use the index API request parameters.
        at org.elasticsearch.index.mapper.DocumentParser.innerParseObject(DocumentParser.java:389) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.mapper.DocumentParser.parseObjectOrNested(DocumentParser.java:373) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.mapper.DocumentParser.internalParseDocument(DocumentParser.java:93) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.mapper.DocumentParser.parseDocument(DocumentParser.java:66) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:277) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.shard.IndexShard.prepareIndex(IndexShard.java:530) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.shard.IndexShard.prepareIndexOnPrimary(IndexShard.java:507) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.bulk.TransportShardBulkAction.prepareIndexOperationOnPrimary(TransportShardBulkAction.java:458) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.bulk.TransportShardBulkAction.executeIndexRequestOnPrimary(TransportShardBulkAction.java:466) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.bulk.TransportShardBulkAction.executeBulkItemRequest(TransportShardBulkAction.java:146) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:115) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:70) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:975) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:944) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:113) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:345) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:270) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:924) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:921) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.shard.IndexShardOperationsLock.acquire(IndexShardOperationsLock.java:151) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationLock(IndexShard.java:1659) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryShardReference(TransportReplicationAction.java:933) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction.access$500(TransportReplicationAction.java:92) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:291) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:266) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:248) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:69) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:644) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:638) ~[elasticsearch-5.6.0.jar:5.6.0]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[elasticsearch-5.6.0.jar:5.6.0]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_131]
        at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
```

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<div class="post-metadata">

**Author:** ![satyarajp](https://avatars.discourse-cdn.com/v4/letter/s/90db22/32.png) [@satyarajp](https://discuss.elastic.co/u/satyarajp)\
**Post date:** [March 28, 2018, 10:42am UTC](https://discuss.elastic.co/t/field-id-is-a-metadata-field-and-cannot-be-added-inside-a-document/125898/2 "2018-03-28T10:42:28Z")

</div>

import org.jongo.marshall.jackson.oid.Id;

@id Annotation is the culprit causing this.

![image](https://us1.discourse-cdn.com/elastic/original/3X/e/a/ea72137c569733f26a642e666ac10b07ff8edb45.png)

---

<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:** [April 25, 2018, 10:42am UTC](https://discuss.elastic.co/t/field-id-is-a-metadata-field-and-cannot-be-added-inside-a-document/125898/3 "2018-04-25T10:42:51Z")

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