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

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012-2013 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  *                                                                            *
  15  * You should have received a copy of the GNU General Public License          *
  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 <boost/algorithm/string.hpp>
  38 #include <boost/algorithm/string/classification.hpp>
  39 #include <boost/foreach.hpp>
  40 #include <boost/algorithm/string/split.hpp>
  41 #include <boost/algorithm/string/replace.hpp>
  42
  43 using namespace icinga;
  44
  45 REGISTER_TYPE(GraphiteWriter);
  46
  47 void GraphiteWriter::Start(void)
  48 {
  49         DynamicObject::Start();
  50
  51         m_ReconnectTimer = make_shared<Timer>();
  52         m_ReconnectTimer->SetInterval(10);
  53         m_ReconnectTimer->OnTimerExpired.connect(boost::bind(&GraphiteWriter::ReconnectTimerHandler, this));
  54         m_ReconnectTimer->Start();
  55         m_ReconnectTimer->Reschedule(0);
  56
  57         Service::OnNewCheckResult.connect(boost::bind(&GraphiteWriter::CheckResultHandler, this, _1, _2));
  58 }
  59
  60 void GraphiteWriter::ReconnectTimerHandler(void)
  61 {
  62         try {
  63                 if (m_Stream) {
  64                         m_Stream->Write("\n", 1);
  65                         Log(LogWarning, "perfdata", "GraphiteWriter already connected on socket on host '" + GetHost() + "' port '" + GetPort() + "'.");
  66                         return;
  67                 }
  68         } catch (const std::exception& ex) {
  69                 Log(LogWarning, "perfdata", "GraphiteWriter socket on host '" + GetHost() + "' port '" + GetPort() + "' gone. Attempting to reconnect.");
  70         }
  71
  72         TcpSocket::Ptr socket = make_shared<TcpSocket>();
  73
  74         Log(LogDebug, "perfdata", "GraphiteWriter: Reconnect to tcp socket on host '" + GetHost() + "' port '" + GetPort() + "'.");
  75         socket->Connect(GetHost(), GetPort());
  76
  77         NetworkStream::Ptr net_stream = make_shared<NetworkStream>(socket);
  78         m_Stream = make_shared<BufferedStream>(net_stream);
  79 }
  80
  81 void GraphiteWriter::CheckResultHandler(const Service::Ptr& service, const CheckResult::Ptr& cr)
  82 {
  83         if (!IcingaApplication::GetInstance()->GetEnablePerfdata() || !service->GetEnablePerfdata())
  84                 return;
  85
  86         /* TODO: sanitize host and service names */
  87         String hostName = service->GetHost()->GetName();
  88         String serviceName = service->GetShortName();
  89
  90         SanitizeMetric(hostName);
  91         SanitizeMetric(serviceName);
  92
  93         String prefix = "icinga." + hostName + "." + serviceName;
  94
  95         /* basic metrics */
  96         SendMetric(prefix, "current_attempt", service->GetCheckAttempt());
  97         SendMetric(prefix, "max_check_attempts", service->GetMaxCheckAttempts());
  98         SendMetric(prefix, "state_type", service->GetStateType());
  99         SendMetric(prefix, "state", service->GetState());
 100         SendMetric(prefix, "latency", Service::CalculateLatency(cr));
 101         SendMetric(prefix, "execution_time", Service::CalculateExecutionTime(cr));
 102
 103         Value pdv = cr->GetPerformanceData();
 104
 105         if (!pdv.IsObjectType<Dictionary>())
 106                 return;
 107
 108         Dictionary::Ptr perfdata = pdv;
 109
 110         ObjectLock olock(perfdata);
 111         BOOST_FOREACH(const Dictionary::Pair& kv, perfdata) {
 112                 double valueNum;
 113
 114                 if (!kv.second.IsObjectType<PerfdataValue>())
 115                         valueNum = kv.second;
 116                 else
 117                         valueNum = static_cast<PerfdataValue::Ptr>(kv.second)->GetValue();
 118
 119                 String escaped_key = kv.first;
 120                 SanitizeMetric(escaped_key);
 121                 boost::algorithm::replace_all(escaped_key, "::", ".");
 122
 123                 SendMetric(prefix, escaped_key, valueNum);
 124         }
 125 }
 126
 127 void GraphiteWriter::SendMetric(const String& prefix, const String& name, double value)
 128 {
 129         std::ostringstream msgbuf;
 130         msgbuf << prefix << "." << name << " " << value << " " << static_cast<long>(Utility::GetTime()) << "\n";
 131
 132         String metric = msgbuf.str();
 133         Log(LogDebug, "perfdata", "GraphiteWriter: Add to metric list:'" + metric + "'.");
 134
 135         ObjectLock olock(this);
 136
 137         if (!m_Stream)
 138                 return;
 139
 140         try {
 141                 m_Stream->Write(metric.CStr(), metric.GetLength());
 142         } catch (const std::exception& ex) {
 143                 std::ostringstream msgbuf;
 144                 msgbuf << "Exception thrown while writing to the Graphite socket: " << std::endl
 145                        << DiagnosticInformation(ex);
 146
 147                 Log(LogCritical, "base", msgbuf.str());
 148
 149                 m_Stream.reset();
 150         }
 151 }
 152
 153 void GraphiteWriter::SanitizeMetric(String& str)
 154 {
 155         boost::replace_all(str, " ", "_");
 156         boost::replace_all(str, ".", "_");
 157         boost::replace_all(str, "-", "_");
 158         boost::replace_all(str, "\\", "_");
 159         boost::replace_all(str, "/", "_");
 160 }