<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=UTF-8" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Indeed it is a nagios 3.x bug :( I did some debug on base/check.c file and found the bogus function: <tt>/* check for hosts that never returned from a check... */ void check_for_orphaned_hosts(void){ host *temp_host=NULL; time_t current_time=0L; time_t expected_time=0L; log_debug_info(DEBUGL_FUNCTIONS,0,"check_for_orphaned_hosts()\n"); /* get the current time */ time(&current_time); /* check all hosts... */ for(temp_host=host_list;temp_host!=NULL;temp_host=temp_host->next){ /* skip hosts that are not currently executing */ if(temp_host->is_executing==FALSE) continue; /* determine the time at which the check results should have come in (allow 10 minutes slack time) */ expected_time=(time_t)(temp_host->next_check+temp_host->latency+host_check_timeout+check_reaper_interval+600); /* this host was supposed to have executed a while ago, but for some reason the results haven't come back in... */ if(expected_time<current_time){ /* log a warning */ logit(NSLOG_RUNTIME_WARNING,TRUE,"Warning: The check of host '%s' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the host...\n",temp_host->name); logit(NSLOG_RUNTIME_WARNING,TRUE,"---------------- %d < %d\n",expected_time,current_time); logit(NSLOG_RUNTIME_WARNING,TRUE,"---------------- next_check %d\n",temp_host->next_check); logit(NSLOG_RUNTIME_WARNING,TRUE,"---------------- latency %g\n",temp_host->latency); logit(NSLOG_RUNTIME_WARNING,TRUE,"---------------- host_check_timeout %d\n",host_check_timeout); logit(NSLOG_RUNTIME_WARNING,TRUE,"---------------- check_reaper_interval %d\n",check_reaper_interval); log_debug_info(DEBUGL_CHECKS,1,"Host '%s' was orphaned, so we're scheduling an immediate check...\n",temp_host->name); /* decrement the number of running host checks */ if(currently_running_host_checks>0) currently_running_host_checks--; /* disable the executing flag */ temp_host->is_executing=FALSE; /* schedule an immediate check of the host */ schedule_host_check(temp_host,current_time,CHECK_OPTION_ORPHAN_CHECK); } } return; }</tt> Some of the logit() calls are from my debug. When nagios checks for orphaned host checks it compares the actual time with an expected time for the result to appear. This expected time is a sum of the next scheduled check, the latency, the host_check_timeout and check_reaper_interval directives plus 10 minutes. The problem here is that I setted up to don't have regularly scheduled host checks by putting check_interval to 0. So this expected time is wrongly computed because next_check time is 0. With this debug I get the following information: [1213718288] Warning: The check of host 'teste' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the host... [1213718288] ---------------- 730 < 1213718288 [1213718288] ---------------- next_check 0 [1213718288] ---------------- latency 0.454 [1213718288] ---------------- host_check_timeout 120 [1213718288] ---------------- check_reaper_interval 10 The 730 is the expected_time where the plugin should have terminated and 1213718288 is the current time. Because next_check is always set to 0, this causes that nagios always thinks that this was a orphanated check. For now I puted the <tt>if(expected_time<current_time)</tt> condition to <tt>if(expected_time<current_time && </tt><tt>temp_host->next_check>0</tt><tt>)</tt> to don't have nagios think it has an orphaned check when the next_check is 0. But I don't think this is a very good solution since host checks can be orphaned and nagios don't get them. Is there any possibility to correct this behavior on a next nagios release? Thank you very much Best regrads, <div class="moz-signature"> <meta http-equiv="Content-Type" content="text/html; "> <title>Emanuel Massano</title> Emanuel Massano FCCN Av. do Brasil, n.º 101 1700-066 Lisboa Tel: +351 21 844 0100 Fax: +351 21 847 2167 E-Mail: <a href="mailto:emanuel.massano@fccn.pt">emanuel.massano@fccn.pt </a><a href="http://www.fccn.pt/" title="http://www.fccn.pt">www.fccn.pt</a> Aviso de Confidencialidade Esta mensagem é exclusivamente destinada ao seu destinatário, podendo conter informação CONFIDENCIAL, cuja divulgação está expressamente vedada nos termos da lei. Caso tenha recepcionado indevidamente esta mensagem, solicitamos-lhe que nos comunique esse mesmo facto por esta via ou para o telefone +351 218440100 devendo apagar o seu conteúdo de imediato. This message is intended exclusively for its addressee. It may contain CONFIDENTIAL information protected by law. If this message has been received by error, please notify us via e-mail or by telephone +351 218440100 and delete it immediately </div> </body> </html>