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  *                                                                            *
   5  * This program is free software; you can redistribute it and/or              *
   6  * modify it under the terms of the GNU General Public License                *
   7  * as published by the Free Software Foundation; either version 2             *
   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
  10  * This program is distributed in the hope that it will be useful,            *
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  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
  14  *                                                                            *
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  16  * along with this program; if not, write to the Free Software Foundation     *
  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
  30 using namespace icinga;
  31
  32 REGISTER_SCRIPTFUNCTION_NS(Internal, ClusterZoneCheck, &ClusterZoneCheckTask::ScriptFunc);
  33
  34 void ClusterZoneCheckTask::ScriptFunc(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr,
  35     const Dictionary::Ptr& resolvedMacros, bool useResolvedMacros)
  36 {
  37         ApiListener::Ptr listener = ApiListener::GetInstance();
  38
  39         if (!listener) {
  40                 cr->SetOutput("No API listener is configured for this instance.");
  41                 cr->SetState(ServiceUnknown);
  42                 checkable->ProcessCheckResult(cr);
  43                 return;
  44         }
  45
  46         CheckCommand::Ptr commandObj = checkable->GetCheckCommand();
  47         Value raw_command = commandObj->GetCommandLine();
  48
  49         Host::Ptr host;
  50         Service::Ptr service;
  51         tie(host, service) = GetHostService(checkable);
  52
  53         MacroProcessor::ResolverList resolvers;
  54         if (service)
  55                 resolvers.push_back(std::make_pair("service", service));
  56         resolvers.push_back(std::make_pair("host", host));
  57         resolvers.push_back(std::make_pair("command", commandObj));
  58         resolvers.push_back(std::make_pair("icinga", IcingaApplication::GetInstance()));
  59
  60         String zoneName = MacroProcessor::ResolveMacros("$cluster_zone$", resolvers, checkable->GetLastCheckResult(),
  61             NULL, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  62
  63         String missingLagWarning;
  64         String missingLagCritical;
  65
  66         double lagWarning = MacroProcessor::ResolveMacros("$cluster_lag_warning$", resolvers, checkable->GetLastCheckResult(),
  67             &missingLagWarning, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  68
  69         double lagCritical = MacroProcessor::ResolveMacros("$cluster_lag_critical$", resolvers, checkable->GetLastCheckResult(),
  70             &missingLagCritical, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
  71
  72         if (resolvedMacros && !useResolvedMacros)
  73                 return;
  74
  75         if (zoneName.IsEmpty()) {
  76                 cr->SetOutput("Macro 'cluster_zone' must be set.");
  77                 cr->SetState(ServiceUnknown);
  78                 checkable->ProcessCheckResult(cr);
  79                 return;
  80         }
  81
  82         Zone::Ptr zone = Zone::GetByName(zoneName);
  83
  84         if (!zone) {
  85                 cr->SetOutput("Zone '" + zoneName + "' does not exist.");
  86                 cr->SetState(ServiceUnknown);
  87                 checkable->ProcessCheckResult(cr);
  88                 return;
  89         }
  90
  91         bool connected = false;
  92         double zoneLag = 0;
  93
  94         for (const Endpoint::Ptr& endpoint : zone->GetEndpoints()) {
  95                 if (endpoint->GetConnected())
  96                         connected = true;
  97
  98                 double eplag = ApiListener::CalculateZoneLag(endpoint);
  99
 100                 if (eplag > 0 && eplag > zoneLag)
 101                         zoneLag = eplag;
 102         }
 103
 104         if (!connected) {
 105                 cr->SetState(ServiceCritical);
 106                 cr->SetOutput("Zone '" + zoneName + "' is not connected. Log lag: " + Utility::FormatDuration(zoneLag));
 107         } else {
 108                 cr->SetState(ServiceOK);
 109                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag));
 110         }
 111
 112         /* Check whether the thresholds have been resolved and compare them */
 113         if (missingLagCritical.IsEmpty() && zoneLag > lagCritical) {
 114                 cr->SetState(ServiceCritical);
 115                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
 116                     + " greater than critical threshold: " + Utility::FormatDuration(lagCritical));
 117         } else if (missingLagWarning.IsEmpty() && zoneLag > lagWarning) {
 118                 cr->SetState(ServiceWarning);
 119                 cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
 120                     + " greater than warning threshold: " + Utility::FormatDuration(lagWarning));
 121         }
 122
 123         Array::Ptr perfdata = new Array();
 124         perfdata->Add(new PerfdataValue("slave_lag", zoneLag, false, "s", lagWarning, lagCritical));
 125         cr->SetPerformanceData(perfdata);
 126
 127         checkable->ProcessCheckResult(cr);
 128 }