icinga2/lib/db_ido/dbconnection.cpp

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