# How Script Filters are implemented internally **URL:** \ **Category:** Elasticsearch\ **Created:** [May 2, 2013, 4:22pm UTC](https://discuss.elastic.co/t/how-script-filters-are-implemented-internally/11782 "2013-05-02T16:22:47Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Txus](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/txus/32/2353_2.png) [@Txus](https://discuss.elastic.co/u/Txus)\ **Post date:** [May 2, 2013, 4:22pm UTC](https://discuss.elastic.co/t/how-script-filters-are-implemented-internally/11782/1 "2013-05-02T16:22:47Z")
Hi, I'm working on a native ElasticSearch plugin (using the Java API). I was logging stuff to stdout to debug some things, and I noticed two things: - The script was running non-deterministically on the various documents, which makes sense, and - The script was running more than once _per document_. Which seems like a waste? I've been browsing the source code trying to find where's this mapping [Documents] =\> [Filtered documents], with no luck. Does anyone know how the script filters know exactly, so that maybe we could find out why scripts are running more than once per document? Cheers! -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Clinton\_Gormley](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Clinton\_Gormley](https://discuss.elastic.co/u/Clinton_Gormley)\ **Post date:** [May 2, 2013, 7:18pm UTC](https://discuss.elastic.co/t/how-script-filters-are-implemented-internally/11782/2 "2013-05-02T19:18:22Z")
Could you provide some sample code which demonstrates this? ta Clint On Thu, May 2, 2013 at 6:22 PM, Txus [josep.m.bach@gmail.com](mailto:josep.m.bach@gmail.com) wrote: > Hi, > > I'm working on a native Elasticsearch plugin (using the Java API). I was > logging stuff to stdout to debug some things, and I noticed two things: > > - The script was running non-deterministically on the various > documents, which makes sense, and > - The script was running more than once _per document_. Which seems > like a waste? > > I've been browsing the source code trying to find where's this mapping > [Documents] =\> [Filtered documents], with no luck. Does anyone know how the > script filters know exactly, so that maybe we could find out why scripts > are running more than once per document? > > Cheers! > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 2:38am UTC](https://discuss.elastic.co/t/how-script-filters-are-implemented-internally/11782/3 "2017-07-06T02:38:35Z")