icinga2/lib/methods/clusterzonechecktask.cpp

129 lines
5.2 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "methods/clusterzonechecktask.hpp"
#include "icinga/checkcommand.hpp"
#include "icinga/macroprocessor.hpp"
#include "remote/apilistener.hpp"
#include "remote/endpoint.hpp"
#include "remote/zone.hpp"
#include "base/function.hpp"
#include "base/utility.hpp"
#include "base/perfdatavalue.hpp"
using namespace icinga;
REGISTER_SCRIPTFUNCTION_NS(Internal, ClusterZoneCheck, &ClusterZoneCheckTask::ScriptFunc, "checkable:cr:resolvedMacros:useResolvedMacros");
void ClusterZoneCheckTask::ScriptFunc(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr,
const Dictionary::Ptr& resolvedMacros, bool useResolvedMacros)
{
ApiListener::Ptr listener = ApiListener::GetInstance();
if (!listener) {
cr->SetOutput("No API listener is configured for this instance.");
cr->SetState(ServiceUnknown);
checkable->ProcessCheckResult(cr);
return;
}
CheckCommand::Ptr commandObj = checkable->GetCheckCommand();
Value raw_command = commandObj->GetCommandLine();
Host::Ptr host;
Service::Ptr service;
tie(host, service) = GetHostService(checkable);
MacroProcessor::ResolverList resolvers;
if (service)
resolvers.push_back(std::make_pair("service", service));
resolvers.push_back(std::make_pair("host", host));
resolvers.push_back(std::make_pair("command", commandObj));
resolvers.push_back(std::make_pair("icinga", IcingaApplication::GetInstance()));
String zoneName = MacroProcessor::ResolveMacros("$cluster_zone$", resolvers, checkable->GetLastCheckResult(),
NULL, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
String missingLagWarning;
String missingLagCritical;
double lagWarning = MacroProcessor::ResolveMacros("$cluster_lag_warning$", resolvers, checkable->GetLastCheckResult(),
&missingLagWarning, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
double lagCritical = MacroProcessor::ResolveMacros("$cluster_lag_critical$", resolvers, checkable->GetLastCheckResult(),
&missingLagCritical, MacroProcessor::EscapeCallback(), resolvedMacros, useResolvedMacros);
if (resolvedMacros && !useResolvedMacros)
return;
if (zoneName.IsEmpty()) {
cr->SetOutput("Macro 'cluster_zone' must be set.");
cr->SetState(ServiceUnknown);
checkable->ProcessCheckResult(cr);
return;
}
Zone::Ptr zone = Zone::GetByName(zoneName);
if (!zone) {
cr->SetOutput("Zone '" + zoneName + "' does not exist.");
cr->SetState(ServiceUnknown);
checkable->ProcessCheckResult(cr);
return;
}
bool connected = false;
double zoneLag = 0;
for (const Endpoint::Ptr& endpoint : zone->GetEndpoints()) {
if (endpoint->GetConnected())
connected = true;
double eplag = ApiListener::CalculateZoneLag(endpoint);
if (eplag > 0 && eplag > zoneLag)
zoneLag = eplag;
}
if (!connected) {
cr->SetState(ServiceCritical);
cr->SetOutput("Zone '" + zoneName + "' is not connected. Log lag: " + Utility::FormatDuration(zoneLag));
} else {
cr->SetState(ServiceOK);
cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag));
}
/* Check whether the thresholds have been resolved and compare them */
if (missingLagCritical.IsEmpty() && zoneLag > lagCritical) {
cr->SetState(ServiceCritical);
cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
+ " greater than critical threshold: " + Utility::FormatDuration(lagCritical));
} else if (missingLagWarning.IsEmpty() && zoneLag > lagWarning) {
cr->SetState(ServiceWarning);
cr->SetOutput("Zone '" + zoneName + "' is connected. Log lag: " + Utility::FormatDuration(zoneLag)
+ " greater than warning threshold: " + Utility::FormatDuration(lagWarning));
}
Array::Ptr perfdata = new Array();
perfdata->Add(new PerfdataValue("slave_lag", zoneLag, false, "s", lagWarning, lagCritical));
cr->SetPerformanceData(perfdata);
checkable->ProcessCheckResult(cr);
}