[Orca-users] lost graphs with orca-0.27

[andy bezella]

thanks!  do you think that is also causing the problem i am seeing with
the daily plots in the weekly statistics (this problem comes and goes. 
very odd)?  i had assumed the two were unrelated, and was going to look
into the "too many open files" later (although i feel very sheepish for
not reading the faq)... 

thanks again... 

andy 

On Wed, 2002-12-11 at 12:19, Blair Zajac wrote: 
> andy bezella wrote:
> > 
> > hello -
> > 
> >         i'm pretty much a newbie to orca (great tool!), so i may be
> > missing something obvious.  i did browse the mailing list archives, but didn't
> > see anything that looked applicable.
> > 
> >         my main problem is that after a few days i am unable to access the
> > weekly graphs through the web pages.  everything seems to work well at first,
> > but then after a while the html is generated incorrectly.  the
> > weekly statistics page for an individual host points to the daily pngs,
> > and few of the "available data set" pages include any pngs (the hosts are still
> > listed at the top).  this appears to be resolved with a stop and restart of the
> > orca process.  running with a single -v i see a number of errors like:
> > 
> > warning: cannot create Orca::HTMLFile object: cannot open [filename] for
> > writing: Too many open files.
> 
> Hello,
> 
> From the FAQ:
> 
>   2.3) Warning: cannot create Orca::HTMLFile object: cannot open
>        `/home/orca_html/o_host1-monthly.html.htm' for writing: Too
>        many open files.
> 
>        This obviously happens with Orca runs out of open file
>        descriptors.  Orca opens many file descriptors to do its work
>        and it doesn't like to close them unless it needs to.
> 
>        The first thing to check is the maximum number of file
>        descriptors each process can have.  On some systems, the login
>        shell scripts lower the maximum number of open file descriptors
>        a process may have.
> 
>        To check this in a Csh shell variant (csh, tcsh), then type
> 
>          limit descriptors
> 
>        or for Bourne shell variant (sh, bash), then type
> 
>          ulimit -n
> 
>        On all operating systems Orca should be able to use 256 file
>        descriptors.  On some, such as Linux, Orca can open 1024 files
>        at once.  If the number you are getting is less than 256, then
>        raise this limit.  Some operating systems let you raise the
>        limit. such as Solaris, while others do not, such as Linux.  To
>        try to raise the limit, do
> 
>          limit descriptors 1024
> 
>        or
> 
>          ulimit -n 1024
> 
>        If these commands do not work, ask your system administrator
>        how to do this.
> 
>        There is a bug in Orca's older than 0.27b2 where Orca would not
>        close a pipe file descriptor that is uncompressing a compressed
>        percol-* file to Orca.  If your percol-* files are compressed,
>        then try either upgrading to 0.27b2 or later or apply the patch
> 
>          http://www.orcaware.com/orca/pub/patches/orca-0.26-defunct-processes-patch.txt
> 
>        to Orca 0.26.  This should have Orca reduce its file descriptor
>        count.
> 
> Best,
> Blair
> 
> -- 
> Blair Zajac <blair at orcaware.com>
> Plots of your system's performance - http://www.orcaware.com/orca/