Re: Tracer Output

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On Tue, 17 Dec 2024 at 22:20, Stephen Morris <steve.morris.au@xxxxxxxxx> wrote:
Hi,
    How does Tracer decide on what messages to display and what instructions to provide. For example, what does it look at to produce the following snippet of its output, especially when I ran "sudo akonadictl restart" and that command said Akonadi wasn't running? If it is restarting other associated applications then where are the messages about what it is restarting and whether or not it was successful?

You should restart:
 * Some applications using:
     akonadictl restart

 * These applications manually:
     DiscoverNotifier
     akonadi_archivemail_agent

sudo akonadictl restart
Akonadi is not running.

First I'd review the man page:

DESCRIPTION
       Tracer  determines which applications use outdated files and prints them. For special kind of 
       applications such as services or daemons, it suggests a standard command to restart it. Detecting
       whether file is outdated or not is based on a simple idea. If application has loaded in memory any ver‐
       sion of a file which is provided by any package updated since system was booted up, tracer consider 
       this application as outdated.
 
If that's 100% the case, then it's looking at fairly crude deltas in order to figure out what needs restarting. And restarting a service doesn't change tracer's output. Since it's calculating the delta between last boot and packages updated.

Then anecdotally, I've just updated a system, restarted a service tracer has identified (as you have), tracer still tells me that it needs restarting because the calculated delta hasn't changed, despite the service being restarted?


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