# Field name cannot be an empty string

**URL:** <https://discuss.elastic.co/t/field-name-cannot-be-an-empty-string/137121>\
**Category:** Elasticsearch\
**Created:** [June 23, 2018, 2:51pm UTC](https://discuss.elastic.co/t/field-name-cannot-be-an-empty-string/137121 "2018-06-23T14:51:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![viewmithun](https://avatars.discourse-cdn.com/v4/letter/v/a3d4f5/32.png) [@viewmithun](https://discuss.elastic.co/u/viewmithun)\
**Post date:** [June 23, 2018, 2:51pm UTC](https://discuss.elastic.co/t/field-name-cannot-be-an-empty-string/137121/1 "2018-06-23T14:51:04Z")

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Hi Team,

I am trying to transport bulk reports from a different VM (192.168.0.xxx) to Elasticsearch machine (192.168.0.xxx).  
I saw the below error in /var/log/elasticsearch/elasticsearch.log

Error:  
[2018-06-18Txx:xx:xx,xxx][DEBUG][o.e.a.b.TransportShardBulkAction] [\*\*\*\*\*\*\*\*\*-2018.06.18][4] failed to execute bulk item (index) BulkShardRequest [[xxxxxxxxx-2018.06.18][4]] containing [9] requests  
org.elasticsearch.index.mapper.MapperParsingException: failed to parse  
at org.elasticsearch.index.mapper.DocumentParser.wrapInMapperParsingException(DocumentParser.java:175) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.parseDocument(DocumentParser.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:261) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.shard.IndexShard.prepareIndex(IndexShard.java:714) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.shard.IndexShard.applyIndexOperation(IndexShard.java:692) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.shard.IndexShard.applyIndexOperationOnPrimary(IndexShard.java:673) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.action.bulk.TransportShardBulkAction.executeIndexRequestOnPrimary(TransportShardBulkAction.java:548) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.action.bulk.TransportShardBulkAction.executeIndexRequest(TransportShardBulkAction.java:140) [elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:66) [elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:656) [elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:672) [elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-6.2.4.jar:6.2.4]  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0\_171]  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0\_171]  
at java.lang.Thread.run(Thread.java:748) [?:1.8.0\_171]  
**Caused by: java.lang.IllegalArgumentException: field name cannot be an empty string**  
at org.elasticsearch.index.mapper.DocumentParser.splitAndValidatePath(DocumentParser.java:195) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.parseValue(DocumentParser.java:604) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.innerParseObject(DocumentParser.java:407) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.parseObjectOrNested(DocumentParser.java:384) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.internalParseDocument(DocumentParser.java:93) ~[elasticsearch-6.2.4.jar:6.2.4]  
at org.elasticsearch.index.mapper.DocumentParser.parseDocument(DocumentParser.java:67) ~[elasticsearch-6.2.4.jar:6.2.4]

Request you to resolve this issue as soon as possible.

Regards,  
Mithun

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 23, 2018, 5:45pm UTC](https://discuss.elastic.co/t/field-name-cannot-be-an-empty-string/137121/2 "2018-06-23T17:45:18Z")

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Please format your logs and code.

We can't help without knowing what you sent to elasticsearch.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 21, 2018, 5:45pm UTC](https://discuss.elastic.co/t/field-name-cannot-be-an-empty-string/137121/3 "2018-07-21T17:45:18Z")

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Closed on July 21, 2018, 5:45pm UTC

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