mirror of https://github.com/Icinga/icinga2.git
357 lines
11 KiB
C++
357 lines
11 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2018 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "perfdata/graphitewriter.hpp"
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#include "perfdata/graphitewriter-ti.cpp"
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#include "icinga/service.hpp"
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#include "icinga/macroprocessor.hpp"
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#include "icinga/icingaapplication.hpp"
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#include "base/tcpsocket.hpp"
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#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"
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#include "base/utility.hpp"
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#include "base/perfdatavalue.hpp"
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#include "base/application.hpp"
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#include "base/stream.hpp"
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#include "base/networkstream.hpp"
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#include "base/exception.hpp"
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#include "base/statsfunction.hpp"
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#include <boost/algorithm/string.hpp>
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#include <boost/algorithm/string/replace.hpp>
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#include <utility>
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using namespace icinga;
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REGISTER_TYPE(GraphiteWriter);
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REGISTER_STATSFUNCTION(GraphiteWriter, &GraphiteWriter::StatsFunc);
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void GraphiteWriter::OnConfigLoaded()
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{
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ObjectImpl<GraphiteWriter>::OnConfigLoaded();
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m_WorkQueue.SetName("GraphiteWriter, " + GetName());
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}
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void GraphiteWriter::StatsFunc(const Dictionary::Ptr& status, const Array::Ptr& perfdata)
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{
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DictionaryData nodes;
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for (const GraphiteWriter::Ptr& graphitewriter : ConfigType::GetObjectsByType<GraphiteWriter>()) {
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size_t workQueueItems = graphitewriter->m_WorkQueue.GetLength();
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double workQueueItemRate = graphitewriter->m_WorkQueue.GetTaskCount(60) / 60.0;
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nodes.emplace_back(graphitewriter->GetName(), new Dictionary({
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{ "work_queue_items", workQueueItems },
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{ "work_queue_item_rate", workQueueItemRate },
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{ "connected", graphitewriter->GetConnected() }
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}));
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perfdata->Add(new PerfdataValue("graphitewriter_" + graphitewriter->GetName() + "_work_queue_items", workQueueItems));
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perfdata->Add(new PerfdataValue("graphitewriter_" + graphitewriter->GetName() + "_work_queue_item_rate", workQueueItemRate));
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}
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status->Set("graphitewriter", new Dictionary(std::move(nodes)));
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}
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void GraphiteWriter::Start(bool runtimeCreated)
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{
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ObjectImpl<GraphiteWriter>::Start(runtimeCreated);
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Log(LogInformation, "GraphiteWriter")
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<< "'" << GetName() << "' started.";
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/* Register exception handler for WQ tasks. */
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m_WorkQueue.SetExceptionCallback(std::bind(&GraphiteWriter::ExceptionHandler, this, _1));
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/* Timer for reconnecting */
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m_ReconnectTimer = new Timer();
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m_ReconnectTimer->SetInterval(10);
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m_ReconnectTimer->OnTimerExpired.connect(std::bind(&GraphiteWriter::ReconnectTimerHandler, this));
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m_ReconnectTimer->Start();
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m_ReconnectTimer->Reschedule(0);
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/* Register event handlers. */
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Checkable::OnNewCheckResult.connect(std::bind(&GraphiteWriter::CheckResultHandler, this, _1, _2));
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}
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void GraphiteWriter::Stop(bool runtimeRemoved)
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{
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Log(LogInformation, "GraphiteWriter")
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<< "'" << GetName() << "' stopped.";
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m_WorkQueue.Join();
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ObjectImpl<GraphiteWriter>::Stop(runtimeRemoved);
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}
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void GraphiteWriter::AssertOnWorkQueue()
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{
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ASSERT(m_WorkQueue.IsWorkerThread());
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}
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void GraphiteWriter::ExceptionHandler(boost::exception_ptr exp)
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{
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Log(LogCritical, "GraphiteWriter", "Exception during Graphite operation: Verify that your backend is operational!");
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Log(LogDebug, "GraphiteWriter")
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<< "Exception during Graphite operation: " << DiagnosticInformation(std::move(exp));
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if (GetConnected()) {
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m_Stream->Close();
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SetConnected(false);
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}
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}
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void GraphiteWriter::Reconnect()
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{
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AssertOnWorkQueue();
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double startTime = Utility::GetTime();
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CONTEXT("Reconnecting to Graphite '" + GetName() + "'");
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SetShouldConnect(true);
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if (GetConnected())
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return;
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TcpSocket::Ptr socket = new TcpSocket();
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Log(LogNotice, "GraphiteWriter")
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<< "Reconnecting to Graphite on host '" << GetHost() << "' port '" << GetPort() << "'.";
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try {
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socket->Connect(GetHost(), GetPort());
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} catch (const std::exception& ex) {
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Log(LogCritical, "GraphiteWriter")
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<< "Can't connect to Graphite on host '" << GetHost() << "' port '" << GetPort() << "'.";
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throw ex;
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}
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m_Stream = new NetworkStream(socket);
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SetConnected(true);
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Log(LogInformation, "GraphiteWriter")
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<< "Finished reconnecting to Graphite in " << std::setw(2) << Utility::GetTime() - startTime << " second(s).";
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}
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void GraphiteWriter::ReconnectTimerHandler()
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{
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m_WorkQueue.Enqueue(std::bind(&GraphiteWriter::Reconnect, this), PriorityNormal);
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}
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void GraphiteWriter::Disconnect()
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{
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AssertOnWorkQueue();
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if (!GetConnected())
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return;
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m_Stream->Close();
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SetConnected(false);
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}
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void GraphiteWriter::CheckResultHandler(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr)
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{
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m_WorkQueue.Enqueue(std::bind(&GraphiteWriter::CheckResultHandlerInternal, this, checkable, cr));
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}
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void GraphiteWriter::CheckResultHandlerInternal(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr)
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{
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AssertOnWorkQueue();
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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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Host::Ptr host;
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Service::Ptr service;
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tie(host, service) = GetHostService(checkable);
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MacroProcessor::ResolverList resolvers;
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if (service)
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resolvers.emplace_back("service", service);
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resolvers.emplace_back("host", host);
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resolvers.emplace_back("icinga", IcingaApplication::GetInstance());
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String prefix;
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if (service) {
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prefix = MacroProcessor::ResolveMacros(GetServiceNameTemplate(), resolvers, cr, nullptr, std::bind(&GraphiteWriter::EscapeMacroMetric, _1));
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} else {
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prefix = MacroProcessor::ResolveMacros(GetHostNameTemplate(), resolvers, cr, nullptr, std::bind(&GraphiteWriter::EscapeMacroMetric, _1));
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}
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String prefixPerfdata = prefix + ".perfdata";
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String prefixMetadata = prefix + ".metadata";
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double ts = cr->GetExecutionEnd();
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if (GetEnableSendMetadata()) {
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if (service) {
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SendMetric(prefixMetadata, "state", service->GetState(), ts);
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} else {
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SendMetric(prefixMetadata, "state", host->GetState(), ts);
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}
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SendMetric(prefixMetadata, "current_attempt", checkable->GetCheckAttempt(), ts);
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SendMetric(prefixMetadata, "max_check_attempts", checkable->GetMaxCheckAttempts(), ts);
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SendMetric(prefixMetadata, "state_type", checkable->GetStateType(), ts);
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SendMetric(prefixMetadata, "reachable", checkable->IsReachable(), ts);
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SendMetric(prefixMetadata, "downtime_depth", checkable->GetDowntimeDepth(), ts);
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SendMetric(prefixMetadata, "acknowledgement", checkable->GetAcknowledgement(), ts);
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SendMetric(prefixMetadata, "latency", cr->CalculateLatency(), ts);
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SendMetric(prefixMetadata, "execution_time", cr->CalculateExecutionTime(), ts);
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}
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SendPerfdata(prefixPerfdata, cr, ts);
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}
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void GraphiteWriter::SendPerfdata(const String& prefix, const CheckResult::Ptr& cr, double ts)
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{
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Array::Ptr perfdata = cr->GetPerformanceData();
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if (!perfdata)
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return;
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ObjectLock olock(perfdata);
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for (const Value& val : perfdata) {
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PerfdataValue::Ptr pdv;
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if (val.IsObjectType<PerfdataValue>())
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pdv = val;
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else {
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try {
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pdv = PerfdataValue::Parse(val);
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} catch (const std::exception&) {
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Log(LogWarning, "GraphiteWriter")
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<< "Ignoring invalid perfdata value: " << val;
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continue;
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}
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}
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String escapedKey = EscapeMetricLabel(pdv->GetLabel());
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SendMetric(prefix, escapedKey + ".value", pdv->GetValue(), ts);
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if (GetEnableSendThresholds()) {
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if (pdv->GetCrit())
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SendMetric(prefix, escapedKey + ".crit", pdv->GetCrit(), ts);
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if (pdv->GetWarn())
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SendMetric(prefix, escapedKey + ".warn", pdv->GetWarn(), ts);
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if (pdv->GetMin())
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SendMetric(prefix, escapedKey + ".min", pdv->GetMin(), ts);
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if (pdv->GetMax())
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SendMetric(prefix, escapedKey + ".max", pdv->GetMax(), ts);
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}
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}
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}
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void GraphiteWriter::SendMetric(const String& prefix, const String& name, double value, double ts)
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{
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std::ostringstream msgbuf;
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msgbuf << prefix << "." << name << " " << Convert::ToString(value) << " " << static_cast<long>(ts);
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Log(LogDebug, "GraphiteWriter")
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<< "Add to metric list:'" << msgbuf.str() << "'.";
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// do not send \n to debug log
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msgbuf << "\n";
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String metric = msgbuf.str();
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ObjectLock olock(this);
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if (!GetConnected())
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return;
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try {
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m_Stream->Write(metric.CStr(), metric.GetLength());
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} catch (const std::exception& ex) {
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Log(LogCritical, "GraphiteWriter")
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<< "Cannot write to TCP socket on host '" << GetHost() << "' port '" << GetPort() << "'.";
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throw ex;
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}
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}
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String GraphiteWriter::EscapeMetric(const String& str)
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{
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String result = str;
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//don't allow '.' in metric prefixes
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boost::replace_all(result, " ", "_");
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boost::replace_all(result, ".", "_");
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boost::replace_all(result, "\\", "_");
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boost::replace_all(result, "/", "_");
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return result;
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}
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String GraphiteWriter::EscapeMetricLabel(const String& str)
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{
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String result = str;
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//allow to pass '.' in perfdata labels
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boost::replace_all(result, " ", "_");
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boost::replace_all(result, "\\", "_");
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boost::replace_all(result, "/", "_");
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boost::replace_all(result, "::", ".");
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return result;
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}
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Value GraphiteWriter::EscapeMacroMetric(const Value& value)
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{
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if (value.IsObjectType<Array>()) {
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Array::Ptr arr = value;
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ArrayData result;
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ObjectLock olock(arr);
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for (const Value& arg : arr) {
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result.push_back(EscapeMetric(arg));
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}
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return Utility::Join(new Array(std::move(result)), '.');
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} else
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return EscapeMetric(value);
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}
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void GraphiteWriter::ValidateHostNameTemplate(const Lazy<String>& lvalue, const ValidationUtils& utils)
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{
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ObjectImpl<GraphiteWriter>::ValidateHostNameTemplate(lvalue, utils);
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if (!MacroProcessor::ValidateMacroString(lvalue()))
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BOOST_THROW_EXCEPTION(ValidationError(this, { "host_name_template" }, "Closing $ not found in macro format string '" + lvalue() + "'."));
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}
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void GraphiteWriter::ValidateServiceNameTemplate(const Lazy<String>& lvalue, const ValidationUtils& utils)
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{
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ObjectImpl<GraphiteWriter>::ValidateServiceNameTemplate(lvalue, utils);
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if (!MacroProcessor::ValidateMacroString(lvalue()))
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BOOST_THROW_EXCEPTION(ValidationError(this, { "service_name_template" }, "Closing $ not found in macro format string '" + lvalue() + "'."));
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}
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