mirror of https://github.com/Icinga/icinga2.git
518 lines
15 KiB
C++
518 lines
15 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 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 "db_ido/dbconnection.hpp"
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#include "db_ido/dbconnection.tcpp"
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#include "db_ido/dbvalue.hpp"
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#include "icinga/icingaapplication.hpp"
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#include "icinga/host.hpp"
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#include "icinga/service.hpp"
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#include "base/configtype.hpp"
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#include "base/convert.hpp"
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#include "base/objectlock.hpp"
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#include "base/utility.hpp"
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#include "base/logger.hpp"
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#include "base/exception.hpp"
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using namespace icinga;
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REGISTER_TYPE(DbConnection);
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Timer::Ptr DbConnection::m_ProgramStatusTimer;
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boost::once_flag DbConnection::m_OnceFlag = BOOST_ONCE_INIT;
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DbConnection::DbConnection(void)
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: m_IDCacheValid(false), m_QueryStats(15 * 60), m_PendingQueries(0),
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m_PendingQueriesTimestamp(0), m_ActiveChangedHandler(false)
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{ }
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void DbConnection::OnConfigLoaded(void)
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{
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ConfigObject::OnConfigLoaded();
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Value categories = GetCategories();
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//TODO: Remove 'cat1 | cat2' notation in 2.6
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if (categories.IsNumber()) {
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SetCategoryFilter(categories);
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Log(LogWarning, "DbConnection")
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<< "Specifying flags using '|' for 'categories' for object '" << GetName()
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<< "' of type '" << GetReflectionType()->GetName() << "'"
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<< " is deprecated. This functionality will be removed in 2.6.0. Please use an array.";
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} else
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SetCategoryFilter(FilterArrayToInt(categories, DbQuery::GetCategoryFilterMap(), DbCatEverything));
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if (!GetEnableHa()) {
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Log(LogDebug, "DbConnection")
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<< "HA functionality disabled. Won't pause IDO connection: " << GetName();
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SetHAMode(HARunEverywhere);
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}
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boost::call_once(m_OnceFlag, InitializeDbTimer);
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}
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void DbConnection::Start(bool runtimeCreated)
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{
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ObjectImpl<DbConnection>::Start(runtimeCreated);
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DbObject::OnQuery.connect(boost::bind(&DbConnection::ExecuteQuery, this, _1));
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DbObject::OnMultipleQueries.connect(boost::bind(&DbConnection::ExecuteMultipleQueries, this, _1));
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}
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void DbConnection::EnableActiveChangedHandler(void)
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{
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if (!m_ActiveChangedHandler) {
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ConfigObject::OnActiveChanged.connect(boost::bind(&DbConnection::UpdateObject, this, _1));
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m_ActiveChangedHandler = true;
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}
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}
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void DbConnection::StatsLoggerTimerHandler(void)
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{
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if (!GetConnected())
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return;
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int pending = GetPendingQueryCount();
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double now = Utility::GetTime();
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double gradient = (pending - m_PendingQueries) / (now - m_PendingQueriesTimestamp);
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double timeToZero = -pending / gradient;
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String timeInfo;
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if (pending > GetQueryCount(5)) {
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timeInfo = " empty in ";
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if (timeToZero < 0)
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timeInfo += "infinite time, your database isn't able to keep up";
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else
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timeInfo += Utility::FormatDuration(timeToZero);
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}
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m_PendingQueries = pending;
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m_PendingQueriesTimestamp = now;
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Log(LogInformation, GetReflectionType()->GetName())
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<< "Query queue items: " << pending
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<< ", query rate: " << std::setw(2) << GetQueryCount(60) / 60.0 << "/s"
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<< " (" << GetQueryCount(60) << "/min " << GetQueryCount(5 * 60) << "/5min " << GetQueryCount(15 * 60) << "/15min);"
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<< timeInfo;
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}
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void DbConnection::Resume(void)
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{
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ConfigObject::Resume();
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Log(LogInformation, "DbConnection")
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<< "Resuming IDO connection: " << GetName();
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m_CleanUpTimer = new Timer();
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m_CleanUpTimer->SetInterval(60);
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m_CleanUpTimer->OnTimerExpired.connect(boost::bind(&DbConnection::CleanUpHandler, this));
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m_CleanUpTimer->Start();
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m_StatsLoggerTimer = new Timer();
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m_StatsLoggerTimer->SetInterval(15);
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m_StatsLoggerTimer->OnTimerExpired.connect(boost::bind(&DbConnection::StatsLoggerTimerHandler, this));
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m_StatsLoggerTimer->Start();
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}
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void DbConnection::Pause(void)
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{
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ConfigObject::Pause();
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Log(LogInformation, "DbConnection")
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<< "Pausing IDO connection: " << GetName();
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m_CleanUpTimer.reset();
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DbQuery query1;
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query1.Table = "programstatus";
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query1.IdColumn = "programstatus_id";
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query1.Type = DbQueryUpdate;
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query1.Category = DbCatProgramStatus;
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query1.WhereCriteria = new Dictionary();
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query1.WhereCriteria->Set("instance_id", 0); /* DbConnection class fills in real ID */
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query1.Fields = new Dictionary();
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query1.Fields->Set("instance_id", 0); /* DbConnection class fills in real ID */
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query1.Fields->Set("program_end_time", DbValue::FromTimestamp(Utility::GetTime()));
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query1.Priority = PriorityHigh;
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ExecuteQuery(query1);
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NewTransaction();
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}
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void DbConnection::InitializeDbTimer(void)
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{
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m_ProgramStatusTimer = new Timer();
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m_ProgramStatusTimer->SetInterval(10);
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m_ProgramStatusTimer->OnTimerExpired.connect(boost::bind(&DbConnection::UpdateProgramStatus));
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m_ProgramStatusTimer->Start();
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}
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void DbConnection::InsertRuntimeVariable(const String& key, const Value& value)
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{
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DbQuery query;
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query.Table = "runtimevariables";
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query.Type = DbQueryInsert;
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query.Category = DbCatProgramStatus;
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query.Fields = new Dictionary();
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query.Fields->Set("instance_id", 0); /* DbConnection class fills in real ID */
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query.Fields->Set("varname", key);
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query.Fields->Set("varvalue", value);
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DbObject::OnQuery(query);
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}
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void DbConnection::UpdateProgramStatus(void)
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{
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Log(LogNotice, "DbConnection")
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<< "Updating programstatus table.";
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std::vector<DbQuery> queries;
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DbQuery query1;
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query1.Table = "programstatus";
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query1.IdColumn = "programstatus_id";
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query1.Type = DbQueryInsert | DbQueryUpdate;
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query1.Category = DbCatProgramStatus;
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query1.Fields = new Dictionary();
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query1.Fields->Set("instance_id", 0); /* DbConnection class fills in real ID */
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query1.Fields->Set("program_version", Application::GetAppVersion());
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query1.Fields->Set("status_update_time", DbValue::FromTimestamp(Utility::GetTime()));
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query1.Fields->Set("program_start_time", DbValue::FromTimestamp(Application::GetStartTime()));
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query1.Fields->Set("is_currently_running", 1);
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query1.Fields->Set("endpoint_name", IcingaApplication::GetInstance()->GetNodeName());
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query1.Fields->Set("process_id", Utility::GetPid());
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query1.Fields->Set("daemon_mode", 1);
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query1.Fields->Set("last_command_check", DbValue::FromTimestamp(Utility::GetTime()));
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query1.Fields->Set("notifications_enabled", (IcingaApplication::GetInstance()->GetEnableNotifications() ? 1 : 0));
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query1.Fields->Set("active_host_checks_enabled", (IcingaApplication::GetInstance()->GetEnableHostChecks() ? 1 : 0));
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query1.Fields->Set("passive_host_checks_enabled", 1);
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query1.Fields->Set("active_service_checks_enabled", (IcingaApplication::GetInstance()->GetEnableServiceChecks() ? 1 : 0));
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query1.Fields->Set("passive_service_checks_enabled", 1);
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query1.Fields->Set("event_handlers_enabled", (IcingaApplication::GetInstance()->GetEnableEventHandlers() ? 1 : 0));
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query1.Fields->Set("flap_detection_enabled", (IcingaApplication::GetInstance()->GetEnableFlapping() ? 1 : 0));
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query1.Fields->Set("process_performance_data", (IcingaApplication::GetInstance()->GetEnablePerfdata() ? 1 : 0));
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query1.WhereCriteria = new Dictionary();
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query1.WhereCriteria->Set("instance_id", 0); /* DbConnection class fills in real ID */
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query1.Priority = PriorityHigh;
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queries.push_back(query1);
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DbQuery query2;
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query2.Type = DbQueryNewTransaction;
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queries.push_back(query2);
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DbObject::OnMultipleQueries(queries);
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DbQuery query3;
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query3.Table = "runtimevariables";
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query3.Type = DbQueryDelete;
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query3.Category = DbCatProgramStatus;
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query3.WhereCriteria = new Dictionary();
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query3.WhereCriteria->Set("instance_id", 0); /* DbConnection class fills in real ID */
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DbObject::OnQuery(query3);
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InsertRuntimeVariable("total_services", ConfigType::Get<Service>()->GetObjectCount());
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InsertRuntimeVariable("total_scheduled_services", ConfigType::Get<Service>()->GetObjectCount());
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InsertRuntimeVariable("total_hosts", ConfigType::Get<Host>()->GetObjectCount());
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InsertRuntimeVariable("total_scheduled_hosts", ConfigType::Get<Host>()->GetObjectCount());
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}
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void DbConnection::CleanUpHandler(void)
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{
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long now = static_cast<long>(Utility::GetTime());
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struct {
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String name;
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String time_column;
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} tables[] = {
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{ "acknowledgements", "entry_time" },
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{ "commenthistory", "entry_time" },
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{ "contactnotifications", "start_time" },
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{ "contactnotificationmethods", "start_time" },
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{ "downtimehistory", "entry_time" },
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{ "eventhandlers", "start_time" },
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{ "externalcommands", "entry_time" },
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{ "flappinghistory", "event_time" },
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{ "hostchecks", "start_time" },
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{ "logentries", "logentry_time" },
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{ "notifications", "start_time" },
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{ "processevents", "event_time" },
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{ "statehistory", "state_time" },
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{ "servicechecks", "start_time" },
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{ "systemcommands", "start_time" }
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};
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for (size_t i = 0; i < sizeof(tables) / sizeof(tables[0]); i++) {
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double max_age = GetCleanup()->Get(tables[i].name + "_age");
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if (max_age == 0)
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continue;
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CleanUpExecuteQuery(tables[i].name, tables[i].time_column, now - max_age);
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Log(LogNotice, "DbConnection")
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<< "Cleanup (" << tables[i].name << "): " << max_age
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<< " now: " << now
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<< " old: " << now - max_age;
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}
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}
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void DbConnection::CleanUpExecuteQuery(const String&, const String&, double)
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{
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/* Default handler does nothing. */
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}
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void DbConnection::SetConfigHash(const DbObject::Ptr& dbobj, const String& hash)
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{
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SetConfigHash(dbobj->GetType(), GetObjectID(dbobj), hash);
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}
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void DbConnection::SetConfigHash(const DbType::Ptr& type, const DbReference& objid, const String& hash)
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{
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if (!objid.IsValid())
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return;
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if (!hash.IsEmpty())
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m_ConfigHashes[std::make_pair(type, objid)] = hash;
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else
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m_ConfigHashes.erase(std::make_pair(type, objid));
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}
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String DbConnection::GetConfigHash(const DbObject::Ptr& dbobj) const
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{
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return GetConfigHash(dbobj->GetType(), GetObjectID(dbobj));
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}
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String DbConnection::GetConfigHash(const DbType::Ptr& type, const DbReference& objid) const
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{
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if (!objid.IsValid())
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return String();
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auto it = m_ConfigHashes.find(std::make_pair(type, objid));
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if (it == m_ConfigHashes.end())
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return String();
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return it->second;
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}
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void DbConnection::SetObjectID(const DbObject::Ptr& dbobj, const DbReference& dbref)
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{
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if (dbref.IsValid())
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m_ObjectIDs[dbobj] = dbref;
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else
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m_ObjectIDs.erase(dbobj);
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}
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DbReference DbConnection::GetObjectID(const DbObject::Ptr& dbobj) const
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{
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auto it = m_ObjectIDs.find(dbobj);
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if (it == m_ObjectIDs.end())
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return DbReference();
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return it->second;
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}
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void DbConnection::SetInsertID(const DbObject::Ptr& dbobj, const DbReference& dbref)
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{
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SetInsertID(dbobj->GetType(), GetObjectID(dbobj), dbref);
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}
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void DbConnection::SetInsertID(const DbType::Ptr& type, const DbReference& objid, const DbReference& dbref)
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{
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if (!objid.IsValid())
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return;
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if (dbref.IsValid())
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m_InsertIDs[std::make_pair(type, objid)] = dbref;
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else
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m_InsertIDs.erase(std::make_pair(type, objid));
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}
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DbReference DbConnection::GetInsertID(const DbObject::Ptr& dbobj) const
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{
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return GetInsertID(dbobj->GetType(), GetObjectID(dbobj));
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}
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DbReference DbConnection::GetInsertID(const DbType::Ptr& type, const DbReference& objid) const
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{
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if (!objid.IsValid())
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return DbReference();
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auto it = m_InsertIDs.find(std::make_pair(type, objid));
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if (it == m_InsertIDs.end())
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return DbReference();
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return it->second;
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}
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void DbConnection::SetObjectActive(const DbObject::Ptr& dbobj, bool active)
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{
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if (active)
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m_ActiveObjects.insert(dbobj);
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else
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m_ActiveObjects.erase(dbobj);
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}
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bool DbConnection::GetObjectActive(const DbObject::Ptr& dbobj) const
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{
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return (m_ActiveObjects.find(dbobj) != m_ActiveObjects.end());
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}
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void DbConnection::ClearIDCache(void)
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{
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SetIDCacheValid(false);
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m_ObjectIDs.clear();
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m_InsertIDs.clear();
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m_ActiveObjects.clear();
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m_ConfigUpdates.clear();
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m_StatusUpdates.clear();
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m_ConfigHashes.clear();
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}
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void DbConnection::SetConfigUpdate(const DbObject::Ptr& dbobj, bool hasupdate)
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{
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if (hasupdate)
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m_ConfigUpdates.insert(dbobj);
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else
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m_ConfigUpdates.erase(dbobj);
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}
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bool DbConnection::GetConfigUpdate(const DbObject::Ptr& dbobj) const
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{
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return (m_ConfigUpdates.find(dbobj) != m_ConfigUpdates.end());
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}
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void DbConnection::SetStatusUpdate(const DbObject::Ptr& dbobj, bool hasupdate)
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{
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if (hasupdate)
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m_StatusUpdates.insert(dbobj);
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else
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m_StatusUpdates.erase(dbobj);
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}
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bool DbConnection::GetStatusUpdate(const DbObject::Ptr& dbobj) const
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{
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return (m_StatusUpdates.find(dbobj) != m_StatusUpdates.end());
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}
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void DbConnection::UpdateObject(const ConfigObject::Ptr& object)
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{
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if (!GetConnected() || Application::IsShuttingDown())
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return;
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DbObject::Ptr dbobj = DbObject::GetOrCreateByObject(object);
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if (dbobj) {
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bool dbActive = GetObjectActive(dbobj);
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bool active = object->IsActive();
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if (active) {
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if (!dbActive)
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ActivateObject(dbobj);
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Dictionary::Ptr configFields = dbobj->GetConfigFields();
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String configHash = dbobj->CalculateConfigHash(configFields);
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ASSERT(configHash.GetLength() <= 64);
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configFields->Set("config_hash", configHash);
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String cachedHash = GetConfigHash(dbobj);
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if (cachedHash != configHash) {
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dbobj->SendConfigUpdateHeavy(configFields);
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dbobj->SendStatusUpdate();
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} else {
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dbobj->SendConfigUpdateLight();
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}
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} else if (!active) {
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/* Deactivate the deleted object no matter
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* which state it had in the database.
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*/
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DeactivateObject(dbobj);
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}
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}
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}
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void DbConnection::UpdateAllObjects(void)
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{
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for (const Type::Ptr& type : Type::GetAllTypes()) {
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ConfigType *dtype = dynamic_cast<ConfigType *>(type.get());
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if (!dtype)
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continue;
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for (const ConfigObject::Ptr& object : dtype->GetObjects()) {
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UpdateObject(object);
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}
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}
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}
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void DbConnection::PrepareDatabase(void)
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{
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for (const DbType::Ptr& type : DbType::GetAllTypes()) {
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FillIDCache(type);
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}
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}
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void DbConnection::ValidateFailoverTimeout(double value, const ValidationUtils& utils)
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{
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ObjectImpl<DbConnection>::ValidateFailoverTimeout(value, utils);
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if (value < 60)
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BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("failover_timeout"), "Failover timeout minimum is 60s."));
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}
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void DbConnection::IncreaseQueryCount(void)
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{
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double now = Utility::GetTime();
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boost::mutex::scoped_lock lock(m_StatsMutex);
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m_QueryStats.InsertValue(now, 1);
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}
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int DbConnection::GetQueryCount(RingBuffer::SizeType span) const
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{
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boost::mutex::scoped_lock lock(m_StatsMutex);
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return m_QueryStats.GetValues(span);
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}
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bool DbConnection::IsIDCacheValid(void) const
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{
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return m_IDCacheValid;
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}
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void DbConnection::SetIDCacheValid(bool valid)
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{
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m_IDCacheValid = valid;
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}
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int DbConnection::GetSessionToken(void)
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{
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return Application::GetStartTime();
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}
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