Mailinglist Archive: zypp-devel (92 mails)

[Lukas Ocilka <lukas.ocilka@xxxxxxx>]

Lukas Ocilka wrote:
> Lukas Ocilka wrote:
>> Hi,
>>
>> There are several bugreports in bugzilla that YaST logs are still
>> increasing and they're very often impossible to attach them into a
>> bugreport because of 5MB limit.
> 
> We've also found this kind of entries:
>   Measure -> Measure.cc -> 5
>   Count: 103
>   Size:  12878

Maybe I should have told you more about the reason why minimized logging
is worth investing your time. Installation of SUSE/openSUSE Linux needs
quite a lot of memory because it uses virtual system (in memory) also
for logging. Very often no swap is activated until the disk is formatted
and installation really starts.

YaST logs are not rotated during the installation and compression
on-the-fly also seems to be very uneasy. So, all logs are stored in the
uncompressed textual form. During upgrade, when there are several
repositories available, the log sometimes take take tenths or even
hundreds of megabytes.

I'd like to point out some issues how logging could be optimized. Quite
easy seems to be remove duplicated data stored into the log. See this
example:

--- example ---
Source.cc(ScanProductsWithCallBacks):75 Scanning products in
ftp://10.10.0.100/install/SLP/openSUSE-10.3-Build936-DVD/i386/DVD1 ;...
MediaAccess.cc(open):109 Trying scheme 'ftp'
MediaCurl.cc(MediaCurl):177
MediaCurl::MediaCurl(ftp://10.10.0.100/install/SLP/openSUSE-10.3-Build936-DVD/i386/DVD1,)
MediaAccess.cc(open):141 Opened:
ftp(ftp://10.10.0.100/install/SLP/openSUSE-10.3-Build936-DVD/i386/DVD1
not attached; localRoot "")
MediaManager.cc(open):426 Opened new media access using id 1 to
ftp://10.10.0.100/install/SLP/openSUSE-10.3-Build936-DVD/i386/DVD1
--- example ---

What's wrong there? The very same URL is logged four-times even if it
would be enough to log it only once or twice.
We don't use several threads so it's easy to track the URL in log-lines
above. And even if we used several threads, there is always a PID
written into the log.

Please, try to remove such issues from the libzypp code.

Thanks
Lukas