[PATCH] NDO - Check for configuration file availability
Michael Friedrich
michael.friedrich at univie.ac.at
Thu Jan 6 12:47:37 CET 2011
On 05.01.2011 18:45, Ricardo Maraschini wrote:
> Hello,
>
> I don't know if this is the right list for NDO, but i'll learn it on the hard way, though.
> I installed NDO into a CentOS, and when i started Nagios i received the following message at nagios.log:
>
> ndomod: Could not open data sink! I'll keep trying, but some output may get lost...
>
> I figured out that nagios' user couldn't access NDO configuration file due to a permission issue. It took me some time to discover the source of the problem, so i thought that maybe an accurate error message can help on this.
>
> I've applied the patch below against ndoutils-1.4b9.
Thanks, very useful. I'll apply slightly modified against IDOUtils -
ido2db will need that too (https://dev.icinga.org/issues/1087). ndo2db
lacks of syslog output either way, so your patch against NDOUtils is
correct :)
Kind regards,
Michael
>
>
> --- ndomod.c 2009-10-27 01:08:29.000000000 -0700
> +++ ndomod.c-modified 2011-01-05 03:40:08.000000000 -0800
> @@ -330,10 +330,15 @@
> ndo_mmapfile *thefile=NULL;
> char *buf=NULL;
> int result=NDO_OK;
> + char temp_buffer[NDOMOD_MAX_BUFLEN];
>
> /* open the file */
> - if((thefile=ndo_mmap_fopen(filename))==NULL)
> + if((thefile=ndo_mmap_fopen(filename))==NULL) {
> + snprintf(temp_buffer,sizeof(temp_buffer)-1,"ndomod: Unable to open configuration file, please check permissions.\n");
> + temp_buffer[sizeof(temp_buffer)-1]='\x0';
> + ndomod_write_to_logs(temp_buffer,NSLOG_INFO_MESSAGE);
> return NDO_ERROR;
> + }
>
> /* process each line of the file */
> while((buf=ndo_mmap_fgets(thefile))){
>
>
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should the need arise, upgrade to a full multi-node Oracle RAC database
without downtime or disruption
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