> /usr/sbin/checkrestart in package debian-goodies tells you what processes
> are using obsolete libraries and can usually tell you which services to
> restart.

Nice! I hadn't heard of that before.

Is there anything already existing that can run as a cronjob and
periodically let the admin know if there're any out-of-date libraries
in use?

-Steve


On 27 February 2011 23:50, Ron Johnson <[email protected]> wrote:
> On 02/27/2011 04:56 PM, shawn wilson wrote:
>>
>> On Sun, Feb 27, 2011 at 1:32 PM, Boyd Stephen Smith Jr.<
>> [email protected]>  wrote:
>>
>>>
>>> In<[email protected]>, Aaron Toponce wrote:
>>>>
>>>> More garbage. There are _many_ good reasons to reboot a UNIX or
>>>> GNU/Linux server:
>>>>
>>>> * Forcing applications to use the new libraries.
>>>
>>> Poor reason; I've never found an application that needed a reboot to fix
>>> this.  (Yes, you need to restart the application, but not the OS.)
>>>
>>> lets look at this for a second. lets look at the libraries that init
>>> uses:
>>
>> swilson@swilson-mbp-vdebian:~/catalyst/New/lib/New/Controller$ ldd
>> /sbin/init
>>         linux-vdso.so.1 =>   (0x00007fffe94c1000)
>
> [snip]
>>
>> hummm, so libc6 was updated on january 11, when did i last reboot this
>> box?
>> swilson@swilson-mbp-vdebian:~/catalyst/New/lib/New/Controller$ uptime
>>  19:28:15 up 41 days, 17:35,  6 users,  load average: 1.72, 0.72, 0.26
>>
>> so, i'm pretty sure that whatever got fixed in libc6 is not fixed on this
>> box if it deals with the base library. maybe i'm wrong - i'm pretty sure
>> it's possible to link a new library to a running process but i don't know.
>> and i don't know whether the dpkg scripts will do this whenever a new
>> library is installed for a running process.
>>
>
> /sbin/init is the only process that can't be forced to use a newly installed
> library w/o rebooting.  Every other process can.
>
> /usr/sbin/checkrestart in package debian-goodies tells you what processes
> are using obsolete libraries and can usually tell you which services to
> restart.
>
> --
> I prefer banana-flavored energy bars made from tofu.
>
>
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