icinga2/lib/icinga/icingastatuswriter.cpp

171 lines
7.1 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
* *
* 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 "icinga/icingastatuswriter.hpp"
#include "icinga/cib.hpp"
#include "base/dynamictype.hpp"
#include "base/logger.hpp"
#include "base/exception.hpp"
#include "base/application.hpp"
#include "base/statsfunction.hpp"
#include "base/json.hpp"
#include <boost/foreach.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <fstream>
using namespace icinga;
REGISTER_TYPE(IcingaStatusWriter);
REGISTER_STATSFUNCTION(IcingaStatusWriterStats, &IcingaStatusWriter::StatsFunc);
void IcingaStatusWriter::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr& perfdata)
{
Dictionary::Ptr nodes = new Dictionary();
BOOST_FOREACH(const IcingaStatusWriter::Ptr& icingastatuswriter, DynamicType::GetObjectsByType<IcingaStatusWriter>()) {
nodes->Set(icingastatuswriter->GetName(), 1); //add more stats
}
status->Set("icingastatuswriter", nodes);
}
/**
* Hint: The reason why we're using "\n" rather than std::endl is because
* std::endl also _flushes_ the output stream which severely degrades
* performance (see http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch25s02.html).
*/
/**
* Starts the component.
*/
void IcingaStatusWriter::Start(void)
{
DynamicObject::Start();
m_StatusTimer = new Timer();
m_StatusTimer->SetInterval(GetUpdateInterval());
m_StatusTimer->OnTimerExpired.connect(boost::bind(&IcingaStatusWriter::StatusTimerHandler, this));
m_StatusTimer->Start();
m_StatusTimer->Reschedule(0);
}
Dictionary::Ptr IcingaStatusWriter::GetStatusData(void)
{
Dictionary::Ptr bag = new Dictionary();
/* features */
std::pair<Dictionary::Ptr, Array::Ptr> stats = CIB::GetFeatureStats();
bag->Set("feature_status", stats.first);
bag->Set("feature_perfdata", stats.second);
/* icinga stats */
Dictionary::Ptr icinga_stats = new Dictionary();
double interval = Utility::GetTime() - Application::GetStartTime();
if (interval > 60)
interval = 60;
icinga_stats->Set("active_host_checks", CIB::GetActiveHostChecksStatistics(interval) / interval);
icinga_stats->Set("passive_host_checks", CIB::GetPassiveHostChecksStatistics(interval) / interval);
icinga_stats->Set("active_host_checks_1min", CIB::GetActiveHostChecksStatistics(60));
icinga_stats->Set("passive_host_checks_1min", CIB::GetPassiveHostChecksStatistics(60));
icinga_stats->Set("active_host_checks_5min", CIB::GetActiveHostChecksStatistics(60 * 5));
icinga_stats->Set("passive_host_checks_5min", CIB::GetPassiveHostChecksStatistics(60 * 5));
icinga_stats->Set("active_host_checks_15min", CIB::GetActiveHostChecksStatistics(60 * 15));
icinga_stats->Set("passive_host_checks_15min", CIB::GetPassiveHostChecksStatistics(60 * 15));
icinga_stats->Set("active_service_checks", CIB::GetActiveServiceChecksStatistics(interval) / interval);
icinga_stats->Set("passive_service_checks", CIB::GetPassiveServiceChecksStatistics(interval) / interval);
icinga_stats->Set("active_service_checks_1min", CIB::GetActiveServiceChecksStatistics(60));
icinga_stats->Set("passive_service_checks_1min", CIB::GetPassiveServiceChecksStatistics(60));
icinga_stats->Set("active_service_checks_5min", CIB::GetActiveServiceChecksStatistics(60 * 5));
icinga_stats->Set("passive_service_checks_5min", CIB::GetPassiveServiceChecksStatistics(60 * 5));
icinga_stats->Set("active_service_checks_15min", CIB::GetActiveServiceChecksStatistics(60 * 15));
icinga_stats->Set("passive_service_checks_15min", CIB::GetPassiveServiceChecksStatistics(60 * 15));
CheckableCheckStatistics scs = CIB::CalculateServiceCheckStats();
icinga_stats->Set("min_latency", scs.min_latency);
icinga_stats->Set("max_latency", scs.max_latency);
icinga_stats->Set("avg_latency", scs.avg_latency);
icinga_stats->Set("min_execution_time", scs.min_latency);
icinga_stats->Set("max_execution_time", scs.max_latency);
icinga_stats->Set("avg_execution_time", scs.avg_execution_time);
ServiceStatistics ss = CIB::CalculateServiceStats();
icinga_stats->Set("num_services_ok", ss.services_ok);
icinga_stats->Set("num_services_warning", ss.services_warning);
icinga_stats->Set("num_services_critical", ss.services_critical);
icinga_stats->Set("num_services_unknown", ss.services_unknown);
icinga_stats->Set("num_services_pending", ss.services_pending);
icinga_stats->Set("num_services_unreachable", ss.services_unreachable);
icinga_stats->Set("num_services_flapping", ss.services_flapping);
icinga_stats->Set("num_services_in_downtime", ss.services_in_downtime);
icinga_stats->Set("num_services_acknowledged", ss.services_acknowledged);
HostStatistics hs = CIB::CalculateHostStats();
icinga_stats->Set("num_hosts_up", hs.hosts_up);
icinga_stats->Set("num_hosts_down", hs.hosts_down);
icinga_stats->Set("num_hosts_unreachable", hs.hosts_unreachable);
icinga_stats->Set("num_hosts_flapping", hs.hosts_flapping);
icinga_stats->Set("num_hosts_in_downtime", hs.hosts_in_downtime);
icinga_stats->Set("num_hosts_acknowledged", hs.hosts_acknowledged);
bag->Set("icinga_status", icinga_stats);
return bag;
}
void IcingaStatusWriter::StatusTimerHandler(void)
{
Log(LogNotice, "IcingaStatusWriter", "Writing status.json file");
String statuspath = GetStatusPath();
String statuspathtmp = statuspath + ".tmp"; /* XXX make this a global definition */
std::ofstream statusfp;
statusfp.open(statuspathtmp.CStr(), std::ofstream::out | std::ofstream::trunc);
statusfp << std::fixed;
statusfp << JsonEncode(GetStatusData());
statusfp.close();
#ifdef _WIN32
_unlink(statuspath.CStr());
#endif /* _WIN32 */
if (rename(statuspathtmp.CStr(), statuspath.CStr()) < 0) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("rename")
<< boost::errinfo_errno(errno)
<< boost::errinfo_file_name(statuspathtmp));
}
Log(LogNotice, "IcingaStatusWriter", "Finished writing status.json file");
}