new file hanging?

[Brad Fitzpatrick]

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
> >>>
> >>>
> >>>
> >>>
> >>>
>
>