granicus.if.org Git - icinga2/blob - components/perfdata/graphitewriter.cpp

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2014 Icinga Development Team (http://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,            *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
  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 "perfdata/graphitewriter.h"
  21 #include "icinga/service.h"
  22 #include "icinga/macroprocessor.h"
  23 #include "icinga/icingaapplication.h"
  24 #include "icinga/compatutility.h"
  25 #include "icinga/perfdatavalue.h"
  26 #include "base/tcpsocket.h"
  27 #include "base/dynamictype.h"
  28 #include "base/objectlock.h"
  29 #include "base/logger_fwd.h"
  30 #include "base/convert.h"
  31 #include "base/utility.h"
  32 #include "base/application.h"
  33 #include "base/stream.h"
  34 #include "base/networkstream.h"
  35 #include "base/bufferedstream.h"
  36 #include "base/exception.h"
  37 #include "base/statsfunction.h"
  38 #include <boost/algorithm/string.hpp>
  39 #include <boost/algorithm/string/classification.hpp>
  40 #include <boost/foreach.hpp>
  41 #include <boost/algorithm/string/split.hpp>
  42 #include <boost/algorithm/string/replace.hpp>
  43
  44 using namespace icinga;
  45
  46 REGISTER_TYPE(GraphiteWriter);
  47
  48 REGISTER_STATSFUNCTION(GraphiteWriterStats, &GraphiteWriter::StatsFunc);
  49
  50 Value GraphiteWriter::StatsFunc(Dictionary::Ptr& status, Dictionary::Ptr& perfdata)
  51 {
  52         Dictionary::Ptr nodes = make_shared<Dictionary>();
  53
  54         BOOST_FOREACH(const GraphiteWriter::Ptr& graphitewriter, DynamicType::GetObjects<GraphiteWriter>()) {
  55                 nodes->Set(graphitewriter->GetName(), 1); //add more stats
  56         }
  57
  58         status->Set("graphitewriter", nodes);
  59
  60         return 0;
  61 }
  62
  63 void GraphiteWriter::Start(void)
  64 {
  65         DynamicObject::Start();
  66
  67         m_ReconnectTimer = make_shared<Timer>();
  68         m_ReconnectTimer->SetInterval(10);
  69         m_ReconnectTimer->OnTimerExpired.connect(boost::bind(&GraphiteWriter::ReconnectTimerHandler, this));
  70         m_ReconnectTimer->Start();
  71         m_ReconnectTimer->Reschedule(0);
  72
  73         Service::OnNewCheckResult.connect(boost::bind(&GraphiteWriter::CheckResultHandler, this, _1, _2));
  74 }
  75
  76 void GraphiteWriter::ReconnectTimerHandler(void)
  77 {
  78         try {
  79                 if (m_Stream) {
  80                         m_Stream->Write("\n", 1);
  81                         Log(LogWarning, "perfdata", "GraphiteWriter already connected on socket on host '" + GetHost() + "' port '" + GetPort() + "'.");
  82                         return;
  83                 }
  84         } catch (const std::exception& ex) {
  85                 Log(LogWarning, "perfdata", "GraphiteWriter socket on host '" + GetHost() + "' port '" + GetPort() + "' gone. Attempting to reconnect.");
  86         }
  87
  88         TcpSocket::Ptr socket = make_shared<TcpSocket>();
  89
  90         Log(LogDebug, "perfdata", "GraphiteWriter: Reconnect to tcp socket on host '" + GetHost() + "' port '" + GetPort() + "'.");
  91         socket->Connect(GetHost(), GetPort());
  92
  93         NetworkStream::Ptr net_stream = make_shared<NetworkStream>(socket);
  94         m_Stream = make_shared<BufferedStream>(net_stream);
  95 }
  96
  97 void GraphiteWriter::CheckResultHandler(const Checkable::Ptr& checkable, const CheckResult::Ptr& cr)
  98 {
  99         if (!IcingaApplication::GetInstance()->GetEnablePerfdata() || !checkable->GetEnablePerfdata())
 100                 return;
 101
 102         Service::Ptr service = dynamic_pointer_cast<Service>(checkable);
 103         Host::Ptr host;
 104
 105         if (service)
 106                 host = service->GetHost();
 107         else
 108                 host = static_pointer_cast<Host>(checkable);
 109
 110         String hostName = host->GetName();
 111         SanitizeMetric(hostName);
 112
 113         String prefix;
 114
 115         if (service) {
 116                 String serviceName = service->GetShortName();
 117                 SanitizeMetric(serviceName);
 118                 prefix = "icinga." + hostName + "." + serviceName;
 119
 120                 SendMetric(prefix, "state", service->GetState());
 121         } else {
 122                 prefix = "icinga." + hostName;
 123
 124                 SendMetric(prefix, "state", host->GetState());
 125         }
 126
 127         SendMetric(prefix, "current_attempt", checkable->GetCheckAttempt());
 128         SendMetric(prefix, "max_check_attempts", checkable->GetMaxCheckAttempts());
 129         SendMetric(prefix, "state_type", checkable->GetStateType());
 130         SendMetric(prefix, "reachable", checkable->IsReachable());
 131         SendMetric(prefix, "latency", Service::CalculateLatency(cr));
 132         SendMetric(prefix, "execution_time", Service::CalculateExecutionTime(cr));
 133         SendPerfdata(prefix, cr);
 134 }
 135
 136 void GraphiteWriter::SendPerfdata(const String& prefix, const CheckResult::Ptr& cr)
 137 {
 138         Value pdv = cr->GetPerformanceData();
 139
 140         if (!pdv.IsObjectType<Dictionary>())
 141                 return;
 142
 143         Dictionary::Ptr perfdata = pdv;
 144
 145         ObjectLock olock(perfdata);
 146         BOOST_FOREACH(const Dictionary::Pair& kv, perfdata) {
 147                 double valueNum;
 148
 149                 if (!kv.second.IsObjectType<PerfdataValue>())
 150                         valueNum = kv.second;
 151                 else
 152                         valueNum = static_cast<PerfdataValue::Ptr>(kv.second)->GetValue();
 153
 154                 String escaped_key = kv.first;
 155                 SanitizeMetric(escaped_key);
 156                 boost::algorithm::replace_all(escaped_key, "::", ".");
 157
 158                 SendMetric(prefix, escaped_key, valueNum);
 159         }
 160 }
 161
 162 void GraphiteWriter::SendMetric(const String& prefix, const String& name, double value)
 163 {
 164         std::ostringstream msgbuf;
 165         msgbuf << prefix << "." << name << " " << value << " " << static_cast<long>(Utility::GetTime()) << "\n";
 166
 167         String metric = msgbuf.str();
 168         Log(LogDebug, "perfdata", "GraphiteWriter: Add to metric list:'" + metric + "'.");
 169
 170         ObjectLock olock(this);
 171
 172         if (!m_Stream)
 173                 return;
 174
 175         try {
 176                 m_Stream->Write(metric.CStr(), metric.GetLength());
 177         } catch (const std::exception& ex) {
 178                 std::ostringstream msgbuf;
 179                 msgbuf << "Exception thrown while writing to the Graphite socket: " << std::endl
 180                        << DiagnosticInformation(ex);
 181
 182                 Log(LogCritical, "base", msgbuf.str());
 183
 184                 m_Stream.reset();
 185         }
 186 }
 187
 188 void GraphiteWriter::SanitizeMetric(String& str)
 189 {
 190         boost::replace_all(str, " ", "_");
 191         boost::replace_all(str, ".", "_");
 192         boost::replace_all(str, "-", "_");
 193         boost::replace_all(str, "\\", "_");
 194         boost::replace_all(str, "/", "_");
 195 }