[Exist-open] eXist server no longer returns a result for some queries

[Samuel A. <kni...@gm...>]

Hi,

We currently have a problem that eXist server no longer returns any
results for many queries. For example, when querying "/", eXist
correctly returns all documents:

<host name="foo">
  <card position="1/0"/>
</host>
<host name="foo2">
  <card position="1/0"/>
  <card position="2/0"/>
</host>

However, selecting //host doesn't produce any results. On the other
hand, I can still select on some of the children of host, i.e. //card
still works.

This is validated in the admin interface, so I can rule out a bug in our code.
Since to me this indicates broken indexes, I have tried to reindex all
collections, but it did not change the behavior. I have also tried to
delete all documents and re-import them using backup/restore.

None of the logfiles contains any new entries when such a query is made.

Any idea what may be going on?

-Samuel