Hi TJ. Sounds like a Solr-like solution. I was avoiding Solr, since I'm
already going to have a hard time getting IT to install a Pylons app on
the webserver; Tomcat would take more time.
What software/libraries do you use for this? Code samples?
TJ Ninneman wrote:
I'm sure someone can shed some light on this for you but I'm a strong
believer in separating the front end web app and any backend
search/indexing services (just like we separate the front end webapp
from the backend database (mysql, pgsql, etc).
Our Pylons app simply queries a backend XML-RPC instance which can be
threaded, forking, single threaded, twisted or whatever. Let me just
say it's a lot easier debugging concurrency issues in a a simple
XML-RPC server than in Apache, Paste Http, CherryPy, etc.
TJ
On Apr 11, 2008, at 10:47 AM, John Beaver 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?
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