how can I read old varnish logs?

[John Cherouvim]

Yes, that worked. I am sorry for the confusion but, yes, it seems that 
my modified logrotate configuration broke the log:

 > /var/log/varnish/varnish.log {
 >     compress
 >     compresscmd /bin/gzip
 >     uncompresscmd /bin/gunzip
 >     compressext gz
 >     dateext
 >     dateformat .%Y-%m-%d.
 >     daily
 >     rotate 7
 >     ifempty
 >     missingok
 >     copytruncate
 > }


Will fix that. Thanks for your time.




Dridi Boukelmoune wrote:
> On Mon, Aug 28, 2017 at 3:05 PM, John Cherouvim <jc at eworx.gr> wrote:
>   
>>> 00000000  12 00 00 4c 63 b6 4e 40  72 65 71 20 35 31 35 38  |...Lc.N at req
>>> 5158|
>>>       
>
> This is weird, you are missing 4 magic bytes at the beginning of the
> file. It could be that the logrotate integration is fundamentally
> broken.
>
> Does this work for you?
>
>     $ (printf 'VSL\0' | cat - some_extracted_file) >some_fixed_file
>     $ varnishlog -r some_fixed_file
>
> Dridi
>