# Making Source Compression on by default at index creation time without explicit mappings **URL:** \ **Category:** Elasticsearch\ **Created:** [May 3, 2012, 1:12am UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545 "2012-05-03T01:12:37Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Paul\_Smith](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/paul_smith/32/1323_2.png) [@Paul\_Smith](https://discuss.elastic.co/u/Paul_Smith)\ **Post date:** [May 3, 2012, 1:12am UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545/1 "2012-05-03T01:12:37Z")
IIUC, \_source compression is available, but off by default, and it can be turned on at either index creation, or by changing the mappings. However IIUC as well, the compression setting needs to be set per-index-type? Reading the index creation, as well as the mapping docs, there doesn't seem to be a way to set compression to be on by default for all types that appear, one would have to define it to be on for the expected types. Would it seem (even) more useful to have a per-index top level setting to make compression on by default rather than need to explicitly set it per-type in the mappings? cheers, Paul ---
**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 3, 2012, 12:01pm UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545/2 "2012-05-03T12:01:15Z")
Hi Paul On Thu, 2012-05-03 at 11:12 +1000, Paul Smith wrote: > IIUC, \_source compression is available, but off by default, and it can > be turned on at either index creation, or by changing the mappings. > However IIUC as well, the compression setting needs to be set > per-index-type? > > Reading the index creation, as well as the mapping docs, there doesn't > seem to be a way to set compression to be on by default for all types > that appear, one would have to define it to be on for the expected > types. > > Would it seem (even) more useful to have a per-index top level setting > to make compression on by default rather than need to explicitly set > it per-type in the mappings? You can do this by putting a mapping for the type '_default_' which is then the base for any other types that you map clint > cheers, > > Paul ---
**Author:** ![Paul\_Smith](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/paul_smith/32/1323_2.png) [@Paul\_Smith](https://discuss.elastic.co/u/Paul_Smith)\ **Post date:** [May 3, 2012, 12:12pm UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545/3 "2012-05-03T12:12:04Z")
wahay! thanks clinton, presumably I can then just set this cluster wide via the "default-mapping.json" file in the cluster then too right? that's cool, thanks, I had forgotten about this part of dynamic mappings, cheers. Paul On 3 May 2012 22:01, Clinton Gormley [clint@traveljury.com](mailto:clint@traveljury.com) wrote: > Hi Paul > > On Thu, 2012-05-03 at 11:12 +1000, Paul Smith wrote: > > > IIUC, \_source compression is available, but off by default, and it can > > be turned on at either index creation, or by changing the mappings. > > However IIUC as well, the compression setting needs to be set > > per-index-type? > > > > Reading the index creation, as well as the mapping docs, there doesn't > > seem to be a way to set compression to be on by default for all types > > that appear, one would have to define it to be on for the expected > > types. > > > > Would it seem (even) more useful to have a per-index top level setting > > to make compression on by default rather than need to explicitly set > > it per-type in the mappings? > > You can do this by putting a mapping for the type '_default_' which is > then the base for any other types that you map > > clint > > > cheers, > > > > Paul ---
**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\ **Post date:** [May 4, 2012, 1:18pm UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545/4 "2012-05-04T13:18:00Z")
Yes, you can also set it in default-mapping.json, though the new preferred way is to simply put an index template, with a template matching all (\*), and then in it have _defualt_ mapping with the compression of \_source set to true. On Thu, May 3, 2012 at 3:12 PM, Paul Smith [tallpsmith@gmail.com](mailto:tallpsmith@gmail.com) wrote: > wahay! thanks clinton, presumably I can then just set this cluster wide > via the "default-mapping.json" file in the cluster then too right? > > that's cool, thanks, I had forgotten about this part of dynamic mappings, > cheers. > > Paul > > On 3 May 2012 22:01, Clinton Gormley [clint@traveljury.com](mailto:clint@traveljury.com) wrote: > > > Hi Paul > > > > On Thu, 2012-05-03 at 11:12 +1000, Paul Smith wrote: > > > > > IIUC, \_source compression is available, but off by default, and it can > > > be turned on at either index creation, or by changing the mappings. > > > However IIUC as well, the compression setting needs to be set > > > per-index-type? > > > > > > Reading the index creation, as well as the mapping docs, there doesn't > > > seem to be a way to set compression to be on by default for all types > > > that appear, one would have to define it to be on for the expected > > > types. > > > > > > Would it seem (even) more useful to have a per-index top level setting > > > to make compression on by default rather than need to explicitly set > > > it per-type in the mappings? > > > > You can do this by putting a mapping for the type '_default_' which is > > then the base for any other types that you map > > > > clint > > > > > cheers, > > > > > > Paul ---
**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, 3:30am UTC](https://discuss.elastic.co/t/making-source-compression-on-by-default-at-index-creation-time-without-explicit-mappings/7545/5 "2017-07-06T03:30:08Z")