granicus.if.org Git - icinga2/blob - lib/methods/clusterzonechecktask.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/)  *
   4  *                                                                            *
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   6  * modify it under the terms of the GNU General Public License                *
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   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
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  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
  18  ******************************************************************************/
  19
  20 #include "methods/clusterzonechecktask.hpp"
  21 #include "icinga/checkcommand.hpp"
  22 #include "icinga/macroprocessor.hpp"
  23 #include "icinga/perfdatavalue.hpp"
  24 #include "remote/apilistener.hpp"
  25 #include "remote/endpoint.hpp"
  26 #include "remote/zone.hpp"
  27 #include "base/function.hpp"
  28 #include "base/utility.hpp"
  29 #include <boost/foreach.hpp>
  30
  31 using namespace icinga;
  32
  33 REGISTER_SCRIPTFUNCTION(ClusterZoneCheck, &ClusterZoneCheckTask::ScriptFunc);
  34
  35 void ClusterZoneCheckTask::ScriptFunc(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr,
  36     const Dictionary::Ptr& resolvedMacros, bool useResolvedMacros)
  37 {
  38         ApiListener::Ptr listener = ApiListener::GetInstance();
  39
  40         if (!listener) {
  41                 cr->SetOutput("No API listener is configured for this instance.");
  42                 cr->SetState(ServiceUnknown);
  43                 checkable->ProcessCheckResult(cr);
  44                 return;
  45         }
  46
  47         CheckCommand::Ptr commandObj = checkable->GetCheckCommand();
  48         Value raw_command = commandObj->GetCommandLine();
  49
  50         Host::Ptr host;
  51         Service::Ptr service;
  52         tie(host, service) = GetHostService(checkable);
  53
  54         MacroProcessor::ResolverList resolvers;
  55         if (service)
  56                 resolvers.push_back(std::make_pair("service", service));
  57         resolvers.push_back(std::make_pair("host", host));
  58         resolvers.push_back(std::make_pair("command", commandObj));
  59         resolvers.push_back(std::make_pair("icinga", IcingaApplication::GetInstance()));
  60
  61         String zoneName = MacroProcessor::ResolveMacros("$cluster_zone$", resolvers, checkable->GetLastCheckResult(),
  62             NULL, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  63
  64         String missingLagWarning;
  65         String missingLagCritical;
  66
  67         double lagWarning = MacroProcessor::ResolveMacros("$cluster_lag_warning$", resolvers, checkable->GetLastCheckResult(),
  68             &missingLagWarning, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  69
  70         double lagCritical = MacroProcessor::ResolveMacros("$cluster_lag_critical$", resolvers, checkable->GetLastCheckResult(),
  71             &missingLagCritical, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  72
  73         if (resolvedMacros && !useResolvedMacros)
  74                 return;
  75
  76         if (zoneName.IsEmpty()) {
  77                 cr->SetOutput("Macro 'cluster_zone' must be set.");
  78                 cr->SetState(ServiceUnknown);
  79                 checkable->ProcessCheckResult(cr);
  80                 return;
  81         }
  82
  83         Zone::Ptr zone = Zone::GetByName(zoneName);
  84
  85         if (!zone) {
  86                 cr->SetOutput("Zone '" + zoneName + "' does not exist.");
  87                 cr->SetState(ServiceUnknown);
  88                 checkable->ProcessCheckResult(cr);
  89                 return;
  90         }
  91
  92         bool connected = false;
  93         double zoneLag = 0;
  94
  95         BOOST_FOREACH(const Endpoint::Ptr& endpoint, zone->GetEndpoints()) {
  96                 if (endpoint->GetConnected())
  97                         connected = true;
  98
  99                 double eplag = ApiListener::CalculateZoneLag(endpoint);
 100
 101                 if (eplag > 0 && eplag > zoneLag)
 102                         zoneLag = eplag;
 103         }
 104
 105         if (!connected) {
 106                 cr->SetState(ServiceCritical);
 107                 cr->SetOutput("Zone '" + zoneName + "' is not connected. Log lag: " + Utility::FormatDuration(zoneLag));
 108         } else {
 109                 cr->SetState(ServiceOK);
 110                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag));
 111         }
 112
 113         /* Check whether the thresholds have been resolved and compare them */
 114         if (missingLagCritical.IsEmpty() && zoneLag > lagCritical) {
 115                 cr->SetState(ServiceCritical);
 116                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
 117                     + " greater than critical threshold: " + Utility::FormatDuration(lagCritical));
 118         } else if (missingLagWarning.IsEmpty() && zoneLag > lagWarning) {
 119                 cr->SetState(ServiceWarning);
 120                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
 121                     + " greater than warning threshold: " + Utility::FormatDuration(lagWarning));
 122         }
 123
 124         Array::Ptr perfdata = new Array();
 125         perfdata->Add(new PerfdataValue("slave_lag", zoneLag, false, "s", lagWarning, lagCritical));
 126         cr->SetPerformanceData(perfdata);
 127
 128         checkable->ProcessCheckResult(cr);
 129 }