# Newbie question: mapping **URL:** \ **Category:** Elasticsearch\ **Created:** [March 3, 2011, 3:22am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018 "2011-03-03T03:22:32Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![canal](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@canal](https://discuss.elastic.co/u/canal)\ **Post date:** [March 3, 2011, 3:22am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018/1 "2011-03-03T03:22:32Z")
Hi, Sorry if this has been already answered: sure this is a newbie question: is mapping required? My understanding is, ES is scheme less, so mapping is not required - but I would like to verify if this is only true for text based, mapping is required for attachment. Is it correct? if so, for the attachment mapping, do I need to specify all fields, or minimum one field with type "attachment" is enough, the additional fields can be added dynamically? thanks, canal ---
**Author:** ![canal](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@canal](https://discuss.elastic.co/u/canal)\ **Post date:** [March 3, 2011, 3:58am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018/2 "2011-03-03T03:58:51Z")
got an error message when creating the index for the attachment: Caused by: org.elasticsearch.index.mapper.MapperParsingException: No handler for type [attachment] declared on field [file] My mapping: private String mapping= "{ "document" : { "properties" : { "file" : {"type" : "attachment" } } } }"; Creating the index: client.admin().indices().create(new CreateIndexRequest(indexName).mapping(indexType, mapping)).actionGet(); Something I miss out? thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Thu, March 3, 2011 11:22:32 AM Subject: newbie question: mapping Hi, Sorry if this has been already answered: sure this is a newbie question: is mapping required? My understanding is, ES is scheme less, so mapping is not required - but I would like to verify if this is only true for text based, mapping is required for attachment. Is it correct? if so, for the attachment mapping, do I need to specify all fields, or minimum one field with type "attachment" is enough, the additional fields can be added dynamically? thanks, canal ---
**Author:** ![canal](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@canal](https://discuss.elastic.co/u/canal)\ **Post date:** [March 5, 2011, 12:53am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018/3 "2011-03-05T00:53:20Z")
Hello, Still have no idea why it failed - this is what I did and still getting the same error: ----- code to create the index and add mapping ----- client.admin().indices().create(new CreateIndexRequest(indexName)).actionGet(); File file = new File ("classpath:test-mapping.json"); String mapping; try { mapping = IOUtils.toString(getClass().getResourceAsStream("/test-mapping.json")); client.admin().indices().putMapping(new PutMappingRequest(indexName).source(mapping)).actionGet(); client.admin().cluster().health(new ClusterHealthRequest(indexName).waitForYellowStatus()).actionGet(); } catch (IOException e) { e.printStackTrace(); } ----- the mapping file ----- { document : { properties : { "file" : { type : "attachment" } } } } ----- the error message ----- Caused by: org.elasticsearch.index.mapper.MapperParsingException: No handler for type [attachment] declared on field [file] at org.elasticsearch.index.mapper.xcontent.ObjectMapper$TypeParser.parseProperties(ObjectMapper.java:190) at org.elasticsearch.index.mapper.xcontent.ObjectMapper$TypeParser.parse(ObjectMapper.java:158) at org.elasticsearch.index.mapper.xcontent.XContentDocumentMapperParser.parse(XContentDocumentMapperParser.java:135) at org.elasticsearch.index.mapper.xcontent.XContentDocumentMapperParser.parse(XContentDocumentMapperParser.java:54) at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:206) at org.elasticsearch.cluster.metadata.MetaDataMappingService$3.execute(MetaDataMappingService.java:193) at org.elasticsearch.cluster.service.InternalClusterService$2.run(InternalClusterService.java:175) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) Really appreciate your help. thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Thu, March 3, 2011 11:58:51 AM Subject: Re: newbie question: mapping got an error message when creating the index for the attachment: Caused by: org.elasticsearch.index.mapper.MapperParsingException: No handler for type [attachment] declared on field [file] My mapping: private String mapping= "{ "document" : { "properties" : { "file" : {"type" : "attachment" } } } }"; Creating the index: client.admin().indices().create(new CreateIndexRequest(indexName).mapping(indexType, mapping)).actionGet(); Something I miss out? thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Thu, March 3, 2011 11:22:32 AM Subject: newbie question: mapping Hi, Sorry if this has been already answered: sure this is a newbie question: is mapping required? My understanding is, ES is scheme less, so mapping is not required - but I would like to verify if this is only true for text based, mapping is required for attachment. Is it correct? if so, for the attachment mapping, do I need to specify all fields, or minimum one field with type "attachment" is enough, the additional fields can be added dynamically? thanks, canal ---
**Author:** ![canal](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@canal](https://discuss.elastic.co/u/canal)\ **Post date:** [March 5, 2011, 1:17am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018/4 "2011-03-05T01:17:17Z")
problem solved finally:I did not unzip the downloaded file. thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Sat, March 5, 2011 8:53:20 AM Subject: [HELP] Re: newbie question: attachment mapping exception in Java Hello, Still have no idea why it failed - this is what I did and still getting the same error: ----- code to create the index and add mapping ----- client.admin().indices().create(new CreateIndexRequest(indexName)).actionGet(); File file = new File ("classpath:test-mapping.json"); String mapping; try { mapping = IOUtils.toString(getClass().getResourceAsStream("/test-mapping.json")); client.admin().indices().putMapping(new PutMappingRequest(indexName).source(mapping)).actionGet(); client.admin().cluster().health(new ClusterHealthRequest(indexName).waitForYellowStatus()).actionGet(); } catch (IOException e) { e.printStackTrace(); } ----- the mapping file ----- { document : { properties : { "file" : { type : "attachment" } } } } ----- the error message ----- Caused by: org.elasticsearch.index.mapper.MapperParsingException: No handler for type [attachment] declared on field [file] at org.elasticsearch.index.mapper.xcontent.ObjectMapper$TypeParser.parseProperties(ObjectMapper.java:190) at org.elasticsearch.index.mapper.xcontent.ObjectMapper$TypeParser.parse(ObjectMapper.java:158) at org.elasticsearch.index.mapper.xcontent.XContentDocumentMapperParser.parse(XContentDocumentMapperParser.java:135) at org.elasticsearch.index.mapper.xcontent.XContentDocumentMapperParser.parse(XContentDocumentMapperParser.java:54) at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:206) at org.elasticsearch.cluster.metadata.MetaDataMappingService$3.execute(MetaDataMappingService.java:193) at org.elasticsearch.cluster.service.InternalClusterService$2.run(InternalClusterService.java:175) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) Really appreciate your help. thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Thu, March 3, 2011 11:58:51 AM Subject: Re: newbie question: mapping got an error message when creating the index for the attachment: Caused by: org.elasticsearch.index.mapper.MapperParsingException: No handler for type [attachment] declared on field [file] My mapping: private String mapping= "{ "document" : { "properties" : { "file" : {"type" : "attachment" } } } }"; Creating the index: client.admin().indices().create(new CreateIndexRequest(indexName).mapping(indexType, mapping)).actionGet(); Something I miss out? thanks, canal * * * From: go canal [gocanal@yahoo.com](mailto:gocanal@yahoo.com) To: [users@elasticsearch.com](mailto:users@elasticsearch.com) Sent: Thu, March 3, 2011 11:22:32 AM Subject: newbie question: mapping Hi, Sorry if this has been already answered: sure this is a newbie question: is mapping required? My understanding is, ES is scheme less, so mapping is not required - but I would like to verify if this is only true for text based, mapping is required for attachment. Is it correct? if so, for the attachment mapping, do I need to specify all fields, or minimum one field with type "attachment" is enough, the additional fields can be added dynamically? thanks, canal ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 4:10am UTC](https://discuss.elastic.co/t/newbie-question-mapping/4018/5 "2017-07-06T04:10:50Z")