# Fieldata **URL:** \ **Category:** Elasticsearch\ **Created:** [October 27, 2017, 10:58am UTC](https://discuss.elastic.co/t/fieldata/105555 "2017-10-27T10:58:58Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![David\_Pizu\_Micallef](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/david_pizu_micallef/32/23498_2.png) [@David\_Pizu\_Micallef](https://discuss.elastic.co/u/David_Pizu_Micallef)\ **Post date:** [October 27, 2017, 10:58am UTC](https://discuss.elastic.co/t/fieldata/105555/1 "2017-10-27T10:58:59Z")
Good Morning ALL, I need to set the Fielddata, but cannot find where I should add this. Am having the below error when trying to access source. Oct 27 10:50:38 itnetgraylog elasticsearch: [2017-10-27 10:50:38,700][DEBUG][action.search] [g0\_RYrN] All shards failed for phase: [query\_fetch] Oct 27 10:50:38 itnetgraylog elasticsearch: RemoteTransportException[[g0\_RYrN][127.0.0.1:9300][indices:data/read/search[phase/query+fetch]]]; nested: IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [source] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; Oct 27 10:50:38 itnetgraylog elasticsearch: Caused by: java.lang.IllegalArgumentException: Fielddata is disabled on text fields by default. Set fielddata=true on [source] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory. Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.index.mapper.core.TextFieldMapper$TextFieldType.fielddataBuilder(TextFieldMapper.java:296) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.index.fielddata.IndexFieldDataService.getForField(IndexFieldDataService.java:111) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder.config(ValuesSourceAggregationBuilder.java:355) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder.resolveConfig(ValuesSourceAggregationBuilder.java:305) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder.doBuild(ValuesSourceAggregationBuilder.java:299) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder.doBuild(ValuesSourceAggregationBuilder.java:49) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.AbstractAggregationBuilder.build(AbstractAggregationBuilder.java:126) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.AggregatorFactories$Builder.build(AggregatorFactories.java:211) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.AggregatorFactory.(AggregatorFactory.java:187) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.bucket.filter.FilterAggregatorFactory.(FilterAggregatorFactory.java:43) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.bucket.filter.FilterAggregationBuilder.doBuild(FilterAggregationBuilder.java:77) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.AbstractAggregationBuilder.build(AbstractAggregationBuilder.java:126) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.aggregations.AggregatorFactories$Builder.build(AggregatorFactories.java:211) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.SearchService.parseSource(SearchService.java:695) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.SearchService.createContext(SearchService.java:550) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:352) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.action.SearchTransportService$SearchQueryFetchTransportHandler.messageReceived(SearchTransportService.java:339) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.search.action.SearchTransportService$SearchQueryFetchTransportHandler.messageReceived(SearchTransportService.java:336) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.transport.TransportRequestHandler.messageReceived(TransportRequestHandler.java:33) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:69) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.transport.TransportService$5.doRun(TransportService.java:517) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:510) Oct 27 10:50:38 itnetgraylog elasticsearch: at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) Oct 27 10:50:38 itnetgraylog elasticsearch: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) Oct 27 10:50:38 itnetgraylog elasticsearch: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) Oct 27 10:50:38 itnetgraylog elasticsearch: at java.lang.Thread.run(Thread.java:748) The Above error from logs. When trying to call: [http://itnetgraylog.corporate.intra:12900/api/sources?range=3600](http://itnetgraylog.corporate.intra:12900/api/sources?range=3600) Linux itnetgraylog 3.10.0-693.5.2.el7.x86\_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017 x86\_64 x86\_64 x86\_64 GNU/Linux Graylog Version: v2.3.2+3df951e Elasticsearch Version: 5.0.0\_alpha5-1 MongoDB Version: 3.4.10-1.el7 Operating System: Centos 7 Browser version: Latest Chrome/IE/Firefox ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [October 27, 2017, 3:37pm UTC](https://discuss.elastic.co/t/fieldata/105555/2 "2017-10-27T15:37:19Z")
please dont use alpha versions, when there is a stable version since more than a year! Maybe you just need to switch from field `foo` to `foo.keyword` and everything works. Alternatively you need to change the mapping from your field to become a keyword instead of a `text` field. It is usually a really bad idea enable fielddata on analyzed fields, unless you want to use the significant terms aggregation - which BTW has a replacement on 6.0.0, which you might want to use instead. Usually there is no reason to enable fielddata anymore, as the long term plan is to remove it ---
**Author:** ![David\_Pizu\_Micallef](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/david_pizu_micallef/32/23498_2.png) [@David\_Pizu\_Micallef](https://discuss.elastic.co/u/David_Pizu_Micallef)\ **Post date:** [October 28, 2017, 6:36pm UTC](https://discuss.elastic.co/t/fieldata/105555/3 "2017-10-28T18:36:06Z")
Hey, Thanks for your reply. Will try to make a small change and get back to you. Thanks,David ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 25, 2017, 6:36pm UTC](https://discuss.elastic.co/t/fieldata/105555/4 "2017-11-25T18:36:18Z")
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