Hi Jan,

The same sequence of add/commit commands results in a successful atomic
update in Solr 8.11.2. And I don't see anything in the ref guide (for Solr
8 or 9) that makes me think this shouldn't be possible. So from a user
perspective, I'd argue that this is a bug introduced in Solr 9.0.0. Should
I add it to JIRA as such?

Thomas

Op vr 28 okt. 2022 om 01:35 schreef Jan Høydahl <jan....@cominvent.com>:

> You are using three features together
> A) Nested docs
> B) Price field (which is really storing price and currency in two sub
> fields)
> C) Atomic updates
>
> I would not be surprised if these three are not really compatible.
> Since there is a requiement to ALWAYS index the entire block of parent and
> children for every update to nested docs, I think you violate that
> requirement by attempting an atomic update. Solr would take the PARENT
> document, read it from disk, construct a new version of it with the added
> value, and then storing it in a different segment. But the children would
> be gone.
>
> So your safest bet is to treat the entire block as a unit, avoid atomic
> and re-send the entire block every time you need an update to even the
> smallest part of the parent/child structure.
>
> Jan
>
> > 27. okt. 2022 kl. 23:51 skrev Thomas Corthals <tho...@klascement.net>:
> >
> > Op do 27 okt. 2022 om 22:04 schreef Shawn Heisey <apa...@elyograg.org
> <mailto:apa...@elyograg.org>>:
> >
> >> On 10/19/22 16:41, Thomas Corthals wrote:
> >>> I'm running into an exception with Solr 9.0.0 for a request that works
> >> fine
> >>> with Solr 8.11.2 and I have no idea why.
> >> <snip>
> >>> However, if I don't do a commit between the two adds, I don't get the
> >> error.
> >>>
> >>>
> >>> Did something change between Solr 8 and 9 that I have to account for in
> >> my
> >>> schema or my update requests? Or is this a bug?
> >>
> >> The error seems to indicate that there is a conflict between the
> >> existing index and the schema with respect to docValues on the field
> >> named price_c____l_ns.  Usually when this happens you have to completely
> >> delete the data directory, reload the index or restart Solr, and reindex
> >> from scratch.
> >>
> >
> > I can reproduce it on a pristine techproducts example index by unpacking
> > the Solr 9.0.0 download and changing the schema in the sample configset
> > *before* I even start that Solr instance for the very first time. That
> > should rule out a conflict between the existing index and the schema as
> the
> > index was built from scratch with that schema and I didn't change it
> > afterwards.
> >
> > The error only occurs with _nest_path_ in the schema, changing _root_ to
> > stored="true" alone doesn't cause it.
> >
> > The error still only occurs with a commit between the initial "add" of
> the
> > doc and the atomic update. The error doesn't occur if I commit after both
> > "add"'s.
> >
> > Thomas
>
>

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