# Assistance with parent/child relationships
**URL:** https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807
**Category:** Elasticsearch
**Created:** [May 22, 2012, 2:51pm UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807 "2012-05-22T14:51:57Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Jay\_Shirley](https://discuss.elastic.co/u/Jay_Shirley)
#### Post date: [May 22, 2012, 2:51pm UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807/1 "2012-05-22T14:51:57Z")
I'm struggling with this behavior and am uncertain of how to proceed
with debugging. I've read through all the docs I can find, but still
am not having any luck.
I am building a knowledge base search index, and a requirement is to
be able to match posts with answers. This seems very obviously best
suited as a parent/child relationship. A KB Post has many responses,
which are the children. This is very similar to a blog and comment
model. To be more similar to the documentation examples, I've just
narrowed the example down to a post and tags (though my real world
usage will be post -\> answers).
I've attempted to follow the documentation and have also setup the
mappings. It seems they are correct in that the \_parent field is
reporting correctly.
I've put everything in this gist that I think is needed to help me
trouble-shoot: [https://gist.github.com/2758363](https://gist.github.com/2758363) but I may be missing
something key.
The search is against only the single index (kb-post), the final file
in the gist are the mappings in that index. It clearly says that kb-
post-tag has a \_parent of kb-post, and the type kb-post has every
property defined as I expect it.
Thanks for any help!
-Jay
---
### Author:  [@Jay\_Shirley](https://discuss.elastic.co/u/Jay_Shirley)
#### Post date: [May 23, 2012, 10:51pm UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807/2 "2012-05-23T22:51:50Z")
I thought that maybe the documents being inserted were after, or I was
missing a re-index.
I've attempted this (reindexed with a confirmed correct mapping) but still
having no luck on getting the parent/child relationship to work.
Does anybody have any debugging tips or any additional information I can
look at?
Thanks,
-Jay
On Tuesday, May 22, 2012 7:51:57 AM UTC-7, Jay Shirley wrote:
> I'm struggling with this behavior and am uncertain of how to proceed
> with debugging. I've read through all the docs I can find, but still
> am not having any luck.
>
> I am building a knowledge base search index, and a requirement is to
> be able to match posts with answers. This seems very obviously best
> suited as a parent/child relationship. A KB Post has many responses,
> which are the children. This is very similar to a blog and comment
> model. To be more similar to the documentation examples, I've just
> narrowed the example down to a post and tags (though my real world
> usage will be post -\> answers).
>
> I've attempted to follow the documentation and have also setup the
> mappings. It seems they are correct in that the \_parent field is
> reporting correctly.
>
> I've put everything in this gist that I think is needed to help me
> trouble-shoot: [Index Mapping ยท GitHub](https://gist.github.com/2758363) but I may be missing
> something key.
>
> The search is against only the single index (kb-post), the final file
> in the gist are the mappings in that index. It clearly says that kb-
> post-tag has a \_parent of kb-post, and the type kb-post has every
> property defined as I expect it.
>
> Thanks for any help!
>
> -Jay
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [May 25, 2012, 8:44pm UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807/3 "2012-05-25T20:44:30Z")
Can you post a full curl recreation? A curl that creates the index with the
relevant mappings, index some sample data, and then sends the failing
search request.
On Thu, May 24, 2012 at 12:51 AM, Jay Shirley [jshirley@tdp.me](mailto:jshirley@tdp.me) wrote:
> I thought that maybe the documents being inserted were after, or I was
> missing a re-index.
>
> I've attempted this (reindexed with a confirmed correct mapping) but still
> having no luck on getting the parent/child relationship to work.
>
> Does anybody have any debugging tips or any additional information I can
> look at?
>
> Thanks,
> -Jay
>
> On Tuesday, May 22, 2012 7:51:57 AM UTC-7, Jay Shirley wrote:
>
> > I'm struggling with this behavior and am uncertain of how to proceed
> > with debugging. I've read through all the docs I can find, but still
> > am not having any luck.
> >
> > I am building a knowledge base search index, and a requirement is to
> > be able to match posts with answers. This seems very obviously best
> > suited as a parent/child relationship. A KB Post has many responses,
> > which are the children. This is very similar to a blog and comment
> > model. To be more similar to the documentation examples, I've just
> > narrowed the example down to a post and tags (though my real world
> > usage will be post -\> answers).
> >
> > I've attempted to follow the documentation and have also setup the
> > mappings. It seems they are correct in that the \_parent field is
> > reporting correctly.
> >
> > I've put everything in this gist that I think is needed to help me
> > trouble-shoot: [https://gist.github.com/\*\*2758363](https://gist.github.com/**2758363)[https://gist.github.com/2758363](https://gist.github.com/2758363)but I may be missing
> > something key.
> >
> > The search is against only the single index (kb-post), the final file
> > in the gist are the mappings in that index. It clearly says that kb-
> > post-tag has a \_parent of kb-post, and the type kb-post has every
> > property defined as I expect it.
> >
> > Thanks for any help!
> >
> > -Jay
---
### Author:  [@Jay\_Shirley](https://discuss.elastic.co/u/Jay_Shirley)
#### Post date: [May 25, 2012, 9:01pm UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807/4 "2012-05-25T21:01:31Z")
I would love to, however when I went back into es-head to start it's now
working.
I think that perhaps my previous re-index I wasn't waiting long enough? I
was reindexing and then immediately re-querying.
Perhaps it was something I was doing wrong.
What I was trying previously was to dynamically insert data and create the
types, then I apply the mapping with the \_parent fields from what was
inserted. I then would reindex.
I think now I have the index and mapping in there, so the new data seems to
be available to query.
Is my understanding correct? I don't want to spend a lot more time
researching it if that sounds plausible.
On Fri, May 25, 2012 at 1:44 PM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:
> Can you post a full curl recreation? A curl that creates the index with
> the relevant mappings, index some sample data, and then sends the failing
> search request.
>
> On Thu, May 24, 2012 at 12:51 AM, Jay Shirley [jshirley@tdp.me](mailto:jshirley@tdp.me) wrote:
>
> > I thought that maybe the documents being inserted were after, or I was
> > missing a re-index.
> >
> > I've attempted this (reindexed with a confirmed correct mapping) but
> > still having no luck on getting the parent/child relationship to work.
> >
> > Does anybody have any debugging tips or any additional information I can
> > look at?
> >
> > Thanks,
> > -Jay
> >
> > On Tuesday, May 22, 2012 7:51:57 AM UTC-7, Jay Shirley wrote:
> >
> > > I'm struggling with this behavior and am uncertain of how to proceed
> > > with debugging. I've read through all the docs I can find, but still
> > > am not having any luck.
> > >
> > > I am building a knowledge base search index, and a requirement is to
> > > be able to match posts with answers. This seems very obviously best
> > > suited as a parent/child relationship. A KB Post has many responses,
> > > which are the children. This is very similar to a blog and comment
> > > model. To be more similar to the documentation examples, I've just
> > > narrowed the example down to a post and tags (though my real world
> > > usage will be post -\> answers).
> > >
> > > I've attempted to follow the documentation and have also setup the
> > > mappings. It seems they are correct in that the \_parent field is
> > > reporting correctly.
> > >
> > > I've put everything in this gist that I think is needed to help me
> > > trouble-shoot: [https://gist.github.com/\*\*2758363](https://gist.github.com/**2758363)[https://gist.github.com/2758363](https://gist.github.com/2758363)but I may be missing
> > > something key.
> > >
> > > The search is against only the single index (kb-post), the final file
> > > in the gist are the mappings in that index. It clearly says that kb-
> > > post-tag has a \_parent of kb-post, and the type kb-post has every
> > > property defined as I expect it.
> > >
> > > Thanks for any help!
> > >
> > > -Jay
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:26am UTC](https://discuss.elastic.co/t/assistance-with-parent-child-relationships/7807/5 "2017-07-06T03:26:58Z")