icinga2/lib/perfdata/graphitewriter.cpp

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/******************************************************************************
* Icinga 2 *
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* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
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* *
* 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. *
******************************************************************************/
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#include "perfdata/graphitewriter.hpp"
#include "perfdata/graphitewriter.tcpp"
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#include "icinga/service.hpp"
#include "icinga/macroprocessor.hpp"
#include "icinga/icingaapplication.hpp"
#include "icinga/compatutility.hpp"
#include "icinga/perfdatavalue.hpp"
#include "base/tcpsocket.hpp"
#include "base/configtype.hpp"
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#include "base/objectlock.hpp"
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#include "base/logger.hpp"
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#include "base/convert.hpp"
#include "base/utility.hpp"
#include "base/application.hpp"
#include "base/stream.hpp"
#include "base/networkstream.hpp"
#include "base/exception.hpp"
#include "base/statsfunction.hpp"
#include <boost/algorithm/string.hpp>
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#include <boost/algorithm/string/classification.hpp>
#include <boost/foreach.hpp>
#include <boost/algorithm/string/split.hpp>
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#include <boost/algorithm/string/replace.hpp>
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using namespace icinga;
REGISTER_TYPE(GraphiteWriter);
REGISTER_STATSFUNCTION(GraphiteWriter, &GraphiteWriter::StatsFunc);
void GraphiteWriter::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr&)
{
Dictionary::Ptr nodes = new Dictionary();
BOOST_FOREACH(const GraphiteWriter::Ptr& graphitewriter, ConfigType::GetObjectsByType<GraphiteWriter>()) {
nodes->Set(graphitewriter->GetName(), 1); //add more stats
}
status->Set("graphitewriter", nodes);
}
void GraphiteWriter::Start(bool runtimeCreated)
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{
ObjectImpl<GraphiteWriter>::Start(runtimeCreated);
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m_ReconnectTimer = new Timer();
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m_ReconnectTimer->SetInterval(10);
m_ReconnectTimer->OnTimerExpired.connect(boost::bind(&GraphiteWriter::ReconnectTimerHandler, this));
m_ReconnectTimer->Start();
m_ReconnectTimer->Reschedule(0);
Service::OnNewCheckResult.connect(boost::bind(&GraphiteWriter::CheckResultHandler, this, _1, _2));
}
void GraphiteWriter::ReconnectTimerHandler(void)
{
if (m_Stream)
return;
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TcpSocket::Ptr socket = new TcpSocket();
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Log(LogNotice, "GraphiteWriter")
<< "Reconnecting to Graphite on host '" << GetHost() << "' port '" << GetPort() << "'.";
try {
socket->Connect(GetHost(), GetPort());
} catch (std::exception&) {
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Log(LogCritical, "GraphiteWriter")
<< "Can't connect to Graphite on host '" << GetHost() << "' port '" << GetPort() << "'.";
return;
}
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m_Stream = new NetworkStream(socket);
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}
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void GraphiteWriter::CheckResultHandler(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr)
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{
CONTEXT("Processing check result for '" + checkable->GetName() + "'");
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if (!IcingaApplication::GetInstance()->GetEnablePerfdata() || !checkable->GetEnablePerfdata())
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return;
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Service::Ptr service = dynamic_pointer_cast<Service>(checkable);
Host::Ptr host;
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if (service)
host = service->GetHost();
else
host = static_pointer_cast<Host>(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("icinga", IcingaApplication::GetInstance()));
String prefix;
double ts = cr->GetExecutionEnd();
/* new mode below. old mode in else tree with 2.4, deprecate it in 2.6 */
if (!GetEnableLegacyMode()) {
if (service) {
prefix = MacroProcessor::ResolveMacros(GetServiceNameTemplate(), resolvers, cr, NULL, boost::bind(&GraphiteWriter::EscapeMacroMetric, _1, false));
} else {
prefix = MacroProcessor::ResolveMacros(GetHostNameTemplate(), resolvers, cr, NULL, boost::bind(&GraphiteWriter::EscapeMacroMetric, _1, false));
}
String prefix_perfdata = prefix + ".perfdata";
String prefix_metadata = prefix + ".metadata";
if (GetEnableSendMetadata()) {
if (service) {
SendMetric(prefix_metadata, "state", service->GetState(), ts);
} else {
SendMetric(prefix_metadata, "state", host->GetState(), ts);
}
SendMetric(prefix_metadata, "current_attempt", checkable->GetCheckAttempt(), ts);
SendMetric(prefix_metadata, "max_check_attempts", checkable->GetMaxCheckAttempts(), ts);
SendMetric(prefix_metadata, "state_type", checkable->GetStateType(), ts);
SendMetric(prefix_metadata, "reachable", checkable->IsReachable(), ts);
SendMetric(prefix_metadata, "downtime_depth", checkable->GetDowntimeDepth(), ts);
SendMetric(prefix_metadata, "acknowledgement", checkable->GetAcknowledgement(), ts);
SendMetric(prefix_metadata, "latency", cr->CalculateLatency(), ts);
SendMetric(prefix_metadata, "execution_time", cr->CalculateExecutionTime(), ts);
}
SendPerfdata(prefix_perfdata, cr, ts);
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} else {
if (service) {
prefix = MacroProcessor::ResolveMacros(GetServiceNameTemplate(), resolvers, cr, NULL, boost::bind(&GraphiteWriter::EscapeMacroMetric, _1, true));
SendMetric(prefix, "state", service->GetState(), ts);
} else {
prefix = MacroProcessor::ResolveMacros(GetHostNameTemplate(), resolvers, cr, NULL, boost::bind(&GraphiteWriter::EscapeMacroMetric, _1, true));
SendMetric(prefix, "state", host->GetState(), ts);
}
SendMetric(prefix, "current_attempt", checkable->GetCheckAttempt(), ts);
SendMetric(prefix, "max_check_attempts", checkable->GetMaxCheckAttempts(), ts);
SendMetric(prefix, "state_type", checkable->GetStateType(), ts);
SendMetric(prefix, "reachable", checkable->IsReachable(), ts);
SendMetric(prefix, "downtime_depth", checkable->GetDowntimeDepth(), ts);
SendMetric(prefix, "acknowledgement", checkable->GetAcknowledgement(), ts);
SendMetric(prefix, "latency", cr->CalculateLatency(), ts);
SendMetric(prefix, "execution_time", cr->CalculateExecutionTime(), ts);
SendPerfdata(prefix, cr, ts);
}
}
void GraphiteWriter::SendPerfdata(const String& prefix, const CheckResult::Ptr& cr, double ts)
{
Array::Ptr perfdata = cr->GetPerformanceData();
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if (!perfdata)
return;
ObjectLock olock(perfdata);
BOOST_FOREACH(const Value& val, perfdata) {
PerfdataValue::Ptr pdv;
if (val.IsObjectType<PerfdataValue>())
pdv = val;
else {
try {
pdv = PerfdataValue::Parse(val);
} catch (const std::exception&) {
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Log(LogWarning, "GraphiteWriter")
<< "Ignoring invalid perfdata value: " << val;
continue;
}
}
/* new mode below. old mode in else tree with 2.4, deprecate it in 2.6 */
if (!GetEnableLegacyMode()) {
String escaped_key = EscapeMetricLabel(pdv->GetLabel());
SendMetric(prefix, escaped_key + ".value", pdv->GetValue(), ts);
if (GetEnableSendThresholds()) {
if (pdv->GetCrit())
SendMetric(prefix, escaped_key + ".crit", pdv->GetCrit(), ts);
if (pdv->GetWarn())
SendMetric(prefix, escaped_key + ".warn", pdv->GetWarn(), ts);
if (pdv->GetMin())
SendMetric(prefix, escaped_key + ".min", pdv->GetMin(), ts);
if (pdv->GetMax())
SendMetric(prefix, escaped_key + ".max", pdv->GetMax(), ts);
}
} else {
String escaped_key = EscapeMetric(pdv->GetLabel());
boost::algorithm::replace_all(escaped_key, "::", ".");
SendMetric(prefix, escaped_key, pdv->GetValue(), ts);
if (pdv->GetCrit())
SendMetric(prefix, escaped_key + "_crit", pdv->GetCrit(), ts);
if (pdv->GetWarn())
SendMetric(prefix, escaped_key + "_warn", pdv->GetWarn(), ts);
if (pdv->GetMin())
SendMetric(prefix, escaped_key + "_min", pdv->GetMin(), ts);
if (pdv->GetMax())
SendMetric(prefix, escaped_key + "_max", pdv->GetMax(), ts);
}
}
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}
void GraphiteWriter::SendMetric(const String& prefix, const String& name, double value, double ts)
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{
std::ostringstream msgbuf;
msgbuf << prefix << "." << name << " " << Convert::ToString(value) << " " << static_cast<long>(ts);
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Log(LogDebug, "GraphiteWriter")
<< "Add to metric list:'" << msgbuf.str() << "'.";
// do not send \n to debug log
msgbuf << "\n";
String metric = msgbuf.str();
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ObjectLock olock(this);
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if (!m_Stream)
return;
try {
m_Stream->Write(metric.CStr(), metric.GetLength());
} catch (const std::exception& ex) {
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Log(LogCritical, "GraphiteWriter")
<< "Cannot write to TCP socket on host '" << GetHost() << "' port '" << GetPort() << "'.";
m_Stream.reset();
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}
}
String GraphiteWriter::EscapeMetric(const String& str, bool legacyMode)
{
String result = str;
//don't allow '.' in metric prefixes
boost::replace_all(result, " ", "_");
boost::replace_all(result, ".", "_");
boost::replace_all(result, "\\", "_");
boost::replace_all(result, "/", "_");
if (legacyMode)
boost::replace_all(result, "-", "_");
return result;
}
String GraphiteWriter::EscapeMetricLabel(const String& str)
{
String result = str;
//allow to pass '.' in perfdata labels
boost::replace_all(result, " ", "_");
boost::replace_all(result, "\\", "_");
boost::replace_all(result, "/", "_");
boost::replace_all(result, "::", ".");
return result;
}
Value GraphiteWriter::EscapeMacroMetric(const Value& value, bool legacyMode)
{
if (value.IsObjectType<Array>()) {
Array::Ptr arr = value;
Array::Ptr result = new Array();
ObjectLock olock(arr);
BOOST_FOREACH(const Value& arg, arr) {
result->Add(EscapeMetric(arg, legacyMode));
}
return Utility::Join(result, '.');
} else
return EscapeMetric(value, legacyMode);
}
void GraphiteWriter::ValidateHostNameTemplate(const String& value, const ValidationUtils& utils)
{
ObjectImpl<GraphiteWriter>::ValidateHostNameTemplate(value, utils);
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if (!MacroProcessor::ValidateMacroString(value))
BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("host_name_template"), "Closing $ not found in macro format string '" + value + "'."));
}
void GraphiteWriter::ValidateServiceNameTemplate(const String& value, const ValidationUtils& utils)
{
ObjectImpl<GraphiteWriter>::ValidateServiceNameTemplate(value, utils);
if (!MacroProcessor::ValidateMacroString(value))
BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("service_name_template"), "Closing $ not found in macro format string '" + value + "'."));
}