[Orca-users] Re: Adding Removing graphs and plots

Wed May 1 10:43:19 PDT 2002

Hi,

Maybe the thing to try is to

1) Stop Orca.
2) Edit orcallator.cfg to show only those data sets you want.
3) Move aside all of the RRD files you currently have.
3) Start Orca.

Let me know if that works.

Best,
Blair

-- 
Blair Zajac <blair at orcaware.com>
Web and OS performance plots - http://www.orcaware.com/orca/

Andrew Broad wrote:
> 
> Hi
> 
> Setting the file decriptor limit to 1024 fixed the problem regarding "Too
> many open files" however I still get the errors regarding "expecting RRD
> name  no data loaded from etc" All I am doing is commenting out the plots on
> the orcallator.cfg file which seems to work for everybody but me :o( any
> ideas would be greatly appreciated.
> 
> Regards
> 
> Andy
> 
> > RSS  VSZ %MEM        TIME     USER   PID COMMAND
> > 7144 7960  0.3        0:05     root 11194 /usr/local/bin/perl
> > Current running time is 0:09 minutes.
> > Loading new data from group orcallator for hostname1.
> > Loading new data from group orcallator for hostname2.
> > Odd number of elements in hash assignment at
> > /usr/local/lib/Orca/SourceFile.pm
> > line 876, <FD> line 2.
> > /usr/local/bin/orca: internal error: expecting RRD name
> > `orcallator_hostname2_g
> > auge_1024_*_8_*_hme0InKB/s' but no data loaded from
> > `/usr/local/var/orca/orcall
> > ator/hostname2/percol-2001-11-16-000' at time Fri Nov 16 14:00:01 2001
> > (1005919
> > 201).
> -----Original Message-----
> From: Blair Zajac [mailto:blair at orcaware.com]
> Sent: Tuesday, April 23, 2002 6:57 PM
> To: orca-users at yahoogroups.com
> Subject: Re: [orca-users] Adding Removing graphs and plots
> 
> Andrew Broad wrote:
> >
> > I have Orca running successfully on my test systems and want to get rid of
> > the plots and html graphs for NFS stuff as we dont use it as well as all
> the
> > graphs and plots that are web related. I tried to comment out the plots in
> > the orcallator.cfg file and it works as far as not showing the NFS/Web
> > graphs etc when it rebuilds the index.html file but produces a lot of
> errors
> > into the orca.log file such as below. Is it a just a matter of commenting
> > out the plots in the orcallator.cfg or do I need to do something else.
> >
> > /usr/local/bin/perl -w /usr/local/bin/orca -v
> /usr/local/bin/orcallator.cfg
> > > /tmp/orca.log 2>&1 &
> >
> > Below is a short extract from the orca.log file.
> >
> > <Orca.log>
> >
> > Orca version 0.264 using RRDs version 1.000331 at Tue Apr 23 11:24:46
> 2002.
> > Loading state from `/usr/local/var/orca/rrd/orcallator/orca.state'.
> > Creating orca.gif.
> > Creating rrdtool.gif.
> > Finding files and setting up data structures at Tue Apr 23 11:24:46 2002.
> > /usr/local/bin/orca: warning: cannot open `gunzip -c
> > /usr/local/var/orca/orcall
> > ator/hostname2/percol-2002-01-12-000.gz |' for reading: Too many open
> files
> > /usr/local/bin/orca: warning: shrinking maximum number open files to 56.
> 
> This is the first problem I would start off handling.  You need to increase
> the number of open file descriptors available to Orca.
> 
> >From the FAQ, follow these steps:
> 
>   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.t
> xt
> 
>        to Orca 0.26.  This should have Orca reduce its file descriptor
>        count.
> 
> > RSS  VSZ %MEM        TIME     USER   PID COMMAND
> > 7144 7960  0.3        0:05     root 11194 /usr/local/bin/perl
> > Current running time is 0:09 minutes.
> > Loading new data from group orcallator for hostname1.
> > Loading new data from group orcallator for hostname2.
> > Odd number of elements in hash assignment at
> > /usr/local/lib/Orca/SourceFile.pm
> > line 876, <FD> line 2.
> > /usr/local/bin/orca: internal error: expecting RRD name
> > `orcallator_hostname2_g
> > auge_1024_*_8_*_hme0InKB/s' but no data loaded from
> > `/usr/local/var/orca/orcall
> > ator/hostname2/percol-2001-11-16-000' at time Fri Nov 16 14:00:01 2001
> > (1005919
> > 201).
> 
> Let me know if these continue after the first problem is handled.
> 
> Best,
> Blair