[sheepdog] [PATCH] sheep: add an option for selecting the output directory of sheep.log

[Liu Yuan]

On Mon, Dec 09, 2013 at 08:49:45PM +0900, Teruaki Ishizaki wrote:
> Previously sheep.log was saved in the Sheepdog store directory,
> and used size of Sheepdog store directory included log file size.
> So, administrator couldn't do capacity planning simply.
> 
> This patch adds an option for setting the output directory of sheep.log.
> 
> Usage:
> 	$ sheep -L dir=<log_output_dir>
> 
> Example:
> 	$ sheep -L dir=/logdir /datastore

I think it is a good time to group logger parameters into a single option, that 
is

 -l level=xxx,dir=yyy,formatter=zzz.
 
> Signed-off-by: Teruaki Ishizaki <ishizaki.teruaki at lab.ntt.co.jp>
> ---
>  sheep/sheep.c |   36 ++++++++++++++++++++++++++++++++++--
>  1 files changed, 34 insertions(+), 2 deletions(-)
> 
> diff --git a/sheep/sheep.c b/sheep/sheep.c
> index 9d9afa0..fc4982c 100644
> --- a/sheep/sheep.c
> +++ b/sheep/sheep.c
> @@ -98,6 +98,12 @@ static const char cache_help[] =
>  "This tries to use /my_ssd as the cache storage with 200G allocted to the\n"
>  "cache in directio mode\n";
>  
> +static const char logdir_help[] =
> +"Example:\n\t$ sheep -L dir=/var/log/ ...\n"
> +"Available arguments:\n"
> +"\tdir=: path to the location of sheep.log\n"
> +"if not specified use datastore directory\n";

"use metastore direcotry"

Thanks
Yuan