[gentoo-user] python-updater broken

[gentoo-user] python-updater broken

[James]

Hello,

One of my systems in an old Pentium III (Coppermine).
python-updater will not complete. It echoes one
line and then sits indefinately (for a day or more).

The system is a minimal (static html) apache 2 web server.
It has 128 meg of ram.

emerge sync and updates all work fine

Here's what else happens:

# eselect python list
!!! Error: Can't load module python


thoughts and ideas are most welcome.


James

Re: [gentoo-user] python-updater broken

[Arttu V.]

On 10/23/08, James <wireless@tampabay.rr.com> wrote:
> Hello,
>
> One of my systems in an old Pentium III (Coppermine).
> python-updater will not complete. It echoes one
> line and then sits indefinately (for a day or more).
...
> Here's what else happens:
>
> # eselect python list
> !!! Error: Can't load module python
>
>
> thoughts and ideas are most welcome.

Some thoughts, not really informed, but trying to lure some better
experts and ideas out:

- Maybe you should run python-updater with several "-v" options? Maybe
it will become more talkative? (See man page and/or the script itself)

- Maybe the disks or filesystems have some problems or bit-rot after
having possibly been powered on 24/7 for a long time? Has there been
power outages? Voluntary fsck time!

- Has something happened to your scanelf? emerge -1 pax-utils might
fix some issues

- I'd guess eselect python complaining like above is probably just
normal, unless you're supposed to have eselect-python package
installed (many systems probably don't and you say your system is sort
of minimal anyway?)

- Does anything unusual appear in /var/log/messages or other logs?

-- 
Arttu V.

Re: [gentoo-user] python-updater broken

[Albert Hopkins]

On Wed, 2008-10-22 at 23:23 +0000, James wrote:
> Hello,
> 
> One of my systems in an old Pentium III (Coppermine).
> python-updater will not complete. It echoes one
> line and then sits indefinately (for a day or more).
> 

Perhaps you can run strace (or bash -x) on it to see where it's hanging.

[...]
> Here's what else happens:
> 
> # eselect python list
> !!! Error: Can't load module python

Probably because there is no eselect module for python installed (there
isn't one on any my machines).

-a

[gentoo-user] Re: python-updater broken

[James]

Arttu V. <arttuv69 <at> gmail.com> writes:


> run python-updater with several "-v" options? 

Here's what I get:


  Starting Python Updater from 2.4 to 2.5 :
  check "soname" enabled.
  check "pylibdir" enabled.
  check "eclass" disabled.
  check "manual" enabled.

<then it hangs>

> - Maybe the disks or filesystems have some problems or bit-rot after
> having possibly been powered on 24/7 for a long time? Has there been
> power outages? Voluntary fsck time!

It's on a high quality UPS. The  Hard drive may have problems, but, I see
no evidence of this. All else compiles and it runs fine, for long
periods of time with no problems. The HD is less than 13%
full....


> - Has something happened to your scanelf? emerge -1 pax-utils 

I did the 'emerge -1 pax-utils'  and 
when I launch python-updater scanelf runs fine as I watch it
via top.

When python-updater actually starts up, that's when the load goes
to 3 or 4 and it just sleeps (as seen in top).


> - I'd guess eselect python complaining like above is probably just
> normal, unless you're supposed to have eselect-python package
> installed (many systems probably don't and you say your system is sort
> of minimal anyway?)

Correct, eselect-python is not installed, so it should not run.
I saw this in a bugs.gentoo.org thread and thought it might help.
I do not think I even need this? (no python whiz here).


> - Does anything unusual appear in /var/log/messages or other logs?

nope, just cron and syslog messages. Nothing out of the ordinary....

[gentoo-user] Re: python-updater broken

[James]

Albert Hopkins <marduk <at> letterboxes.org> writes:


> Perhaps you can run strace (or bash -x) on it to see where it's hanging.

Oh, I would not know the syntax. No man page for strace. more info?
syntax suggestions? The machine hoses everytime I run python-update.


> > # eselect python list
> > !!! Error: Can't load module python

> Probably because there is no eselect module for python installed (there
> isn't one on any my machines).

Right, so now I installed it and it says:


Available python interpreters:
  [1]   python2.4
  [2]   python2.5 *

So why does python-updater have to be used at all?
Everything else seems fine....


James

Re: [gentoo-user] Re: python-updater broken

[Paul Hartman]

On Fri, Oct 24, 2008 at 3:38 PM, James <wireless@tampabay.rr.com> wrote:
> Albert Hopkins <marduk <at> letterboxes.org> writes:
>
>
>> Perhaps you can run strace (or bash -x) on it to see where it's hanging.
>
> Oh, I would not know the syntax. No man page for strace. more info?
> syntax suggestions? The machine hoses everytime I run python-update.

Weird, it has a man page on my system. Have you got strace installed
at all? dev-util/strace

strace --help will show you commands as well.

Re: [gentoo-user] Re: python-updater broken

[Albert Hopkins]

On Fri, 2008-10-24 at 20:38 +0000, James wrote:
> Albert Hopkins <marduk <at> letterboxes.org> writes:
> 
> 
> > Perhaps you can run strace (or bash -x) on it to see where it's hanging.
> 
> Oh, I would not know the syntax. No man page for strace. more info?
> syntax suggestions? The machine hoses everytime I run python-update.

Probably no man page because it's likely not installed.

    # emerge strace

But the generic way of running it is

    # strace python-updater


> 
> > > # eselect python list
> > > !!! Error: Can't load module python
> 
> > Probably because there is no eselect module for python installed (there
> > isn't one on any my machines).
> 
> Right, so now I installed it and it says:
> 
> 
> Available python interpreters:
>   [1]   python2.4
>   [2]   python2.5 *
> 
> So why does python-updater have to be used at all?
> Everything else seems fine....


The python-updater and eselect module do completely different things.
All the eselect module probably does is update a
symlink: /usr/bin/python => python2.5.  What python-updater is supposed
to do is take all the packages that were emerged against python2.4 and
re-emerge them agains python2.5.  Basically what it does is identify all
the files in /usr/lib/python-<oldversion>/site-packages, associates them
with packages and re-emerges those packages.  It's a shell script so
running:

    # bash -x /usr/sbin/python-updater 

should give you some indication as to where it's hanging.

Hope this helps.
-a

[gentoo-user] Re: python-updater broken

[James]

Paul Hartman <paul.hartman+gentoo <at> gmail.com> writes:


> > Oh, I would not know the syntax. No man page for strace. more info?
> > syntax suggestions? 

> strace --help will show you commands as well.


Working too late at night...

Strace is not install on the minimalistic server, but, I have man
pages on other machines... I'll give it a whirl....



James

[gentoo-user] Re: python-updater broken

[James]

Albert Hopkins <marduk <at> letterboxes.org> writes:


> > > Perhaps you can run strace (or bash -x) on it to see where it's hanging.

>     # bash -x /usr/sbin/python-updater 


Simple enough:

<snip>
+ CATPKGVER==sys-apps/man-pages-2.78
+ [[ 0 = 2 ]]
+ [[ CHECK_PYLIBDIR -ne 0 ]]
+ grep -qe '/usr/\(include\|lib\(32\|64\)\?\)/python2.4'
/var/db/pkg/sys-apps/man-pages-2.78/CONTENTS
+ [[ CHECK_SONAME -ne 0 ]]
++ scanelf -qBN libpython2.4.so.1.0
+++ grep -e '^obj' /var/db/pkg/sys-apps/man-pages-2.78/CONTENTS
+++ cut '-d ' -f2


I have already (twice) emerged  scanelf  (pax-utils 0.1.17).


Remember the system only has 128 meg of ram on a P3 (coppermine)
machine.

Here are the USE flags:
USE="  -X  pic ncurses ssl crypt berkdb tcpd pam perl python php 
postgres apache2 \
readline bzip2 nptl nptlonly syslog sse mmx hardened 
gif gpm hal dvd jpeg \
socketspm3 mpeg png spell udev unicode v4l v4l2 
win32codecs ral x264 tiff \
usb mjpeg mng snmp wmf pdf dbus wmp mp4 jpeg2k gs -kde -gtk -gnome "


thoughts or ideas? 

James