Hah, sounds like an rtfm. Thanks - that fixed it.
For others, I put the lucene.initVM(lucene.CLASSPATH) call in
middleware.py, and then just called getVMEnv().attachCurrentThread() in
the controller before using any PyLucene functions.
Andi Vajda wrote:
On Apr 11, 2008, at 8:47, John Beaver <[EMAIL PROTECTED]> wrote:
Hi, I'm trying to integrate PyLucene with a Pylons app, but I'm
having serious stability problems. Does anyone have experience with
this?
Specifically, I have a single action which does the following:
lucene.initVM(lucene.CLASSPATH)
directory = FSDirectory.getDirectory(Globals.LUCENE_INDEX_PATH);
searcher = IndexSearcher(directory)
analyzer = StandardAnalyzer()
query = QueryParser('terms', analyzer).parse(term)
hits = searcher.search(query)
... process hits
It works perfectly the first time I view the corresponding webpage,
but it reproducibly crashes the webserver (paster serve) the second
time I try, always while in the initVM() function.
I've tried putting the initVM() call in middleware.py, and I've tried
using a global flag to make sure that initVM() is only called once in
the controller. Both seem to fail when a different thread tries to
access PyLucene functions.
I'm assuming this is a threading issue, so I'm going to write some
code to ensure that everything happens within a single thread. But
does anyone have a simpler solution for getting this working within
Pylons?
initVM() should be called from the main thread. Calling it more than
once, in recent versions, is a nop.
Any other thread requiring JVM access needs to first call
env.attachCurrentThread() or the process will crash. See README for
PyLucene and JCC for more info.
Andi..
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