Ferret talk - Jan 2007 - test/functional/thread_safety_index_test.rb failures - segfaults too

Hi,

I just checked out ferret 0.10.14 from subversion and am getting
intermittent failures from the thread_safety_index_test.rb script.

Sometimes it runs through to the end with no errors, but other times I
get errors, including segfaults.

I reported the bug here: http://ferret.davebalmain.com/trac/ticket/153

Can anyone else reproduce this?

svn co svn://davebalmain.com/ferret/tags/REL-0.10.14/ ferret-0.10.14
cd ferret-0.10.14
rake ext
ruby test/functional/thread_safety_index_test.rb

You''ll need to run it a few times though (just the last line).
Sometimes it returns successful, sometimes it returns weird and random
test errors, and every so often it actually segfaults.

Additionally, I encountered problems running "rake ext" on a box that
already has Ferret 0.10.14 installed as a gem.  You may need to do this
on a box without Ferret already installed (or figure out why it fails to
build and fix it :)

I''m on Ubuntu Edgy.

Thanks,

John.
--
http://johnleach.co.uk

Hi,

I''ve tweaked the test script to almost guarantee a segfault now. 
I''ve
also simplified it to try help rule out a few things.  It no longer
deletes or optimizes the index: just one thread for adding docs and one
thread for searching docs.

http://johnleach.co.uk/downloads/ruby/ferret/thread_safety_read_write_test.rb

You''ll need to drop it in the directory "test/functional/" in
an
unpacked Ferret source package.

John.
--
http://johnleach.co.uk

On Sun, 2007-01-28 at 01:56 +0000, John Leach wrote:
> Hi,
> 
> I just checked out ferret 0.10.14 from subversion and am getting
> intermittent failures from the thread_safety_index_test.rb script.
> 
> Sometimes it runs through to the end with no errors, but other times I
> get errors, including segfaults.
> 
> I reported the bug here: http://ferret.davebalmain.com/trac/ticket/153
> 
> Can anyone else reproduce this?
> 
> svn co svn://davebalmain.com/ferret/tags/REL-0.10.14/ ferret-0.10.14
> cd ferret-0.10.14
> rake ext
> ruby test/functional/thread_safety_index_test.rb
> 
> You''ll need to run it a few times though (just the last line).
> Sometimes it returns successful, sometimes it returns weird and random
> test errors, and every so often it actually segfaults.
> 
> Additionally, I encountered problems running "rake ext" on a box
that
> already has Ferret 0.10.14 installed as a gem.  You may need to do this
> on a box without Ferret already installed (or figure out why it fails to
> build and fix it :)
> 
> I''m on Ubuntu Edgy.
> 
> Thanks,
> 
> John.
> --
> http://johnleach.co.uk