[Exist-open] eXist xml file locks

[Prerovsky, C. <Cle...@be...>]

Hi,
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we're using eXist to keep track of projects, storing them in a project
database. It works fine most of the time, no crashes, no errors etc.
After about two weeks the database suddently switches to "strange
behaviour", crashes about once an hour. Documents are only stored
partially, file locks don't get removed anymore - and can't be removed
even by the administrator. Some documents get malformed and contain
scrambled information. The only solution is to delete the affected
collection and recreate it from backup afterwards. Some documents can't
be queried anymore - simple queries such as //Projects/* deliver empty
return values - even though the documents are there and filled with
information. This has happened twice since first install - only
reinstall could revive the db. Has anyone experienced something like
this before?
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We're running Suse Linux 9.2 with eXist-1.0b2-build-1107. Since our
files are rather small this does not seem to be the problem - the whole
db is far below 492K in size. We also thought there were "evil" queries
which kill the database - but they don't cause any matter after
reinstall.
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Hope one of you guys can help!
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Thanks in advance + best regards
Clemens Prerovsky