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From David Mosca <DMo...@shopzilla.com>
Subject RE: PyLucene Error Message
Date Thu, 29 Mar 2012 16:56:31 GMT
Yes I am using threads (threading module).

I initialise the JVM like this: jvm = lucene.initVM(initialheap='8G', maxheap='8G')

Then I use it as follows:

for i in range(8):
        t = ThreadSearch(queue, jvm)
        t.setDaemon(True)
        t.start()

with ThreadSearch built like this:

class ThreadSearch(threading.Thread):
    def __init__(self, queue, jvm):
        threading.Thread.__init__(self)
        self.queue = queue
        self.jvm = jvm
    def run(self):
        self.jvm.attachCurrentThread()

I have tried lucene.getVMEnv().attachCurrentThread() instead but I still get the same error
message.

Thanks,

David

From: Greg Bowyer [mailto:gbowyer@fastmail.co.uk]
Sent: 29 March 2012 17:30
To: David Mosca
Cc: java-user@lucene.apache.org
Subject: Re: PyLucene Error Message

Wow a VM / hotspot crash, are you using threads ?

If you are make sure you have correctly attached the vm env to each new thread *after* you
have initialised it on the main thread

This is done with the following
lucene.getVMEnv().attachCurrentThread()

On 29/03/2012 09:10, David Mosca wrote:

I have re-attached the log.



Thanks,



David





-----Original Message-----

From: Greg Bowyer [mailto:gbowyer@fastmail.co.uk]

Sent: 29 March 2012 16:55

To: java-user@lucene.apache.org<mailto:java-user@lucene.apache.org>

Subject: Re: PyLucene Error Message



I dont see any attached log, can you attach the log please.



-- Greg

On 29/03/2012 07:35, David Mosca wrote:



Hello,



I am using Lucene version 3.4 through the Python extension (pylucene)

in a multi-threaded script. When I launch the script I sometimes get a

fatal error message (log attached) and sometimes not (I always launch

the same script, exactly in the same way). When I get the error

message I keep launching the script again until the script stops

crashing (it sometimes takes up to 5 or 6 times).



Could you please have a look into this?



Thank you.



*David*







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