new file hanging?

[Juan Ignacio Leon]

Brandon,
Take a look at the perlbal archives for July and August 2005.
http://lists.danga.com/pipermail/perlbal/

Brad posted a new release -1.36 that seems to be the one to use until
1.40 is out. (Anyone jump in and correct me if I am out-dated here). 
If you take a look at the changelog you'll see that Brad got rid of
several dependencies and added the AIO mode as an option:
http://cvs.danga.com/browse.cgi/wcmtools/perlbal/lib/Perlbal/AIO.pm

Juan


On 8/24/05, Brad Fitzpatrick <brad at danga.com> wrote:
> 
> 
> On Wed, 24 Aug 2005, Brandon Ooi wrote:
> 
> > Hi Juan,
> >
> > Interesting that you say that. I read this mailing list's archive and I
> > came across a problem with Linux::AIO here.
> >
> > http://lists.danga.com/pipermail/mogilefs/2005-March/000029.html
> >
> > The latest Linux::AIO (v1.8) does not pass "make test". I reverted to
> > using Linux::AIO 1.72. While this is Fedora Core 4, it is the 32-bit x86
> > build.
> >
> > I would like to try IO::AIO (which I believe is API compatible). How can
> > I instruct Perlbal to use IO::AIO instead of Linux::AIO?
> 
> Uninstall Linux::AIO.  Perlbal will prefer Linux::AIO, then IO::AIO, then
> native (blocking).
> 
> You can also set it with:
> 
>    server aio_mode = linux
>    server aio_mode = ioaio
>    server aio_mode = none
> 
> In your perlbal config file.  (but in mogstored's case, it auto-generates
> the config file...)
> 
> 
> >
> > Brandon
> >
> >
> > Juan Ignacio Leon wrote:
> >
> > >Brandon,
> > >As far as I dug, I was able to see that the problems had to do with
> > >the asynchronous IO routines.
> > >At the time I was testing (early this summer), Linux::AIO was a
> > >requirement and did not work well with 64bit kernels on RedHat (epoll
> > >problems also). Now, you can instruct perlbal to use IO::AIO which is
> > >a portable asynch IO written by the same developer - Lehmann.
> > >
> > >I ended up having to ditch the RedHat clone for the storage solution
> > >and threw mogile on Debian.  I will, however, try again on a RedHat
> > >derivative at some point in the future. Sorry I can't be of more help.
> > >This community is pretty darn good and quite active lately so best of
> > >luck.
> > >
> > >Oh one more thing:  be sure to try using CVS builds for all these
> > >sources rather than the older ones linked from the website.
> > >
> > >Juan
> > >
> > >
> > >On 8/24/05, Brandon Ooi <brandono at berkeley.edu> wrote:
> > >
> > >
> > >>I am running on Fedora Core 4 SMP. (which is probably an RHEL somethign
> > >>clone). Did you ever figure out what caused the hangs?
> > >>
> > >>Brandon
> > >>
> > >>Juan Ignacio Leon wrote:
> > >>
> > >>
> > >>
> > >>>Brandon,
> > >>>What platform are you running mogilefs on? I had similar hangs when
> > >>>using CentOS 4.1 (RHEL 4.1 Clone).
> > >>>J
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>
> >
> >
>