mirror of https://github.com/Icinga/icinga2.git
519 lines
16 KiB
C++
519 lines
16 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012-2016 Icinga Development Team (https://www.icinga.org/) *
|
|
* *
|
|
* 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. *
|
|
******************************************************************************/
|
|
|
|
#include "icinga/checkable.hpp"
|
|
#include "icinga/service.hpp"
|
|
#include "icinga/host.hpp"
|
|
#include "icinga/checkcommand.hpp"
|
|
#include "icinga/icingaapplication.hpp"
|
|
#include "icinga/cib.hpp"
|
|
#include "icinga/clusterevents.hpp"
|
|
#include "remote/messageorigin.hpp"
|
|
#include "remote/apilistener.hpp"
|
|
#include "base/objectlock.hpp"
|
|
#include "base/logger.hpp"
|
|
#include "base/convert.hpp"
|
|
#include "base/utility.hpp"
|
|
#include "base/context.hpp"
|
|
#include <boost/foreach.hpp>
|
|
|
|
using namespace icinga;
|
|
|
|
boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, const MessageOrigin::Ptr&)> Checkable::OnNewCheckResult;
|
|
boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, StateType, const MessageOrigin::Ptr&)> Checkable::OnStateChange;
|
|
boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, std::set<Checkable::Ptr>, const MessageOrigin::Ptr&)> Checkable::OnReachabilityChanged;
|
|
boost::signals2::signal<void (const Checkable::Ptr&, NotificationType, const CheckResult::Ptr&, const String&, const String&)> Checkable::OnNotificationsRequested;
|
|
boost::signals2::signal<void (const Checkable::Ptr&)> Checkable::OnNextCheckUpdated;
|
|
|
|
CheckCommand::Ptr Checkable::GetCheckCommand(void) const
|
|
{
|
|
return dynamic_pointer_cast<CheckCommand>(NavigateCheckCommandRaw());
|
|
}
|
|
|
|
TimePeriod::Ptr Checkable::GetCheckPeriod(void) const
|
|
{
|
|
return TimePeriod::GetByName(GetCheckPeriodRaw());
|
|
}
|
|
|
|
void Checkable::SetSchedulingOffset(long offset)
|
|
{
|
|
m_SchedulingOffset = offset;
|
|
}
|
|
|
|
long Checkable::GetSchedulingOffset(void)
|
|
{
|
|
return m_SchedulingOffset;
|
|
}
|
|
|
|
void Checkable::UpdateNextCheck(void)
|
|
{
|
|
double interval;
|
|
|
|
if (GetStateType() == StateTypeSoft && GetLastCheckResult() != NULL)
|
|
interval = GetRetryInterval();
|
|
else
|
|
interval = GetCheckInterval();
|
|
|
|
double now = Utility::GetTime();
|
|
double adj = 0;
|
|
|
|
if (interval > 1)
|
|
adj = fmod(now * 100 + GetSchedulingOffset(), interval * 100) / 100.0;
|
|
|
|
SetNextCheck(now - adj + interval);
|
|
}
|
|
|
|
bool Checkable::HasBeenChecked(void) const
|
|
{
|
|
return GetLastCheckResult() != NULL;
|
|
}
|
|
|
|
double Checkable::GetLastCheck(void) const
|
|
{
|
|
CheckResult::Ptr cr = GetLastCheckResult();
|
|
double schedule_end = -1;
|
|
|
|
if (cr)
|
|
schedule_end = cr->GetScheduleEnd();
|
|
|
|
return schedule_end;
|
|
}
|
|
|
|
void Checkable::ProcessCheckResult(const CheckResult::Ptr& cr, const MessageOrigin::Ptr& origin)
|
|
{
|
|
{
|
|
ObjectLock olock(this);
|
|
m_CheckRunning = false;
|
|
}
|
|
|
|
double now = Utility::GetTime();
|
|
|
|
if (cr->GetScheduleStart() == 0)
|
|
cr->SetScheduleStart(now);
|
|
|
|
if (cr->GetScheduleEnd() == 0)
|
|
cr->SetScheduleEnd(now);
|
|
|
|
if (cr->GetExecutionStart() == 0)
|
|
cr->SetExecutionStart(now);
|
|
|
|
if (cr->GetExecutionEnd() == 0)
|
|
cr->SetExecutionEnd(now);
|
|
|
|
if (!origin || origin->IsLocal()) {
|
|
Log(LogDebug, "Checkable")
|
|
<< "No origin or local origin for object '" << GetName()
|
|
<< "', setting " << IcingaApplication::GetInstance()->GetNodeName()
|
|
<< " as check_source.";
|
|
cr->SetCheckSource(IcingaApplication::GetInstance()->GetNodeName());
|
|
}
|
|
|
|
Endpoint::Ptr command_endpoint = GetCommandEndpoint();
|
|
|
|
/* override check source if command_endpoint was defined */
|
|
if (command_endpoint && !GetExtension("agent_check")) {
|
|
Log(LogDebug, "Checkable")
|
|
<< "command_endpoint found for object '" << GetName()
|
|
<< "', setting " << command_endpoint->GetName()
|
|
<< " as check_source.";
|
|
cr->SetCheckSource(command_endpoint->GetName());
|
|
}
|
|
|
|
/* agent checks go through the api */
|
|
if (command_endpoint && GetExtension("agent_check")) {
|
|
ApiListener::Ptr listener = ApiListener::GetInstance();
|
|
|
|
if (listener) {
|
|
/* send message back to its origin */
|
|
Dictionary::Ptr message = ClusterEvents::MakeCheckResultMessage(this, cr);
|
|
listener->SyncSendMessage(command_endpoint, message);
|
|
}
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
bool reachable = IsReachable();
|
|
bool notification_reachable = IsReachable(DependencyNotification);
|
|
|
|
ObjectLock olock(this);
|
|
|
|
CheckResult::Ptr old_cr = GetLastCheckResult();
|
|
ServiceState old_state = GetStateRaw();
|
|
StateType old_stateType = GetStateType();
|
|
long old_attempt = GetCheckAttempt();
|
|
bool recovery = false;
|
|
|
|
if (old_cr && cr->GetExecutionStart() < old_cr->GetExecutionStart())
|
|
return;
|
|
|
|
/* The ExecuteCheck function already sets the old state, but we need to do it again
|
|
* in case this was a passive check result. */
|
|
SetLastStateRaw(old_state);
|
|
SetLastStateType(old_stateType);
|
|
SetLastReachable(reachable);
|
|
|
|
long attempt = 1;
|
|
|
|
std::set<Checkable::Ptr> children = GetChildren();
|
|
|
|
if (!old_cr) {
|
|
SetStateType(StateTypeHard);
|
|
} else if (cr->GetState() == ServiceOK) {
|
|
if (old_state == ServiceOK && old_stateType == StateTypeSoft) {
|
|
SetStateType(StateTypeHard); // SOFT OK -> HARD OK
|
|
recovery = true;
|
|
}
|
|
|
|
if (old_state != ServiceOK)
|
|
recovery = true; // NOT OK -> SOFT/HARD OK
|
|
|
|
ResetNotificationNumbers();
|
|
SaveLastState(ServiceOK, Utility::GetTime());
|
|
|
|
/* update reachability for child objects in OK state */
|
|
if (!children.empty())
|
|
OnReachabilityChanged(this, cr, children, origin);
|
|
} else {
|
|
if (old_attempt >= GetMaxCheckAttempts()) {
|
|
SetStateType(StateTypeHard);
|
|
} else if (old_stateType == StateTypeSoft && old_state != ServiceOK) {
|
|
SetStateType(StateTypeSoft);
|
|
attempt = old_attempt + 1; //NOT-OK -> NOT-OK counter
|
|
} else if (old_state == ServiceOK) {
|
|
SetStateType(StateTypeSoft);
|
|
attempt = 1; //OK -> NOT-OK transition, reset the counter
|
|
} else {
|
|
attempt = old_attempt;
|
|
}
|
|
|
|
if (cr->GetState() != ServiceOK) {
|
|
SaveLastState(cr->GetState(), Utility::GetTime());
|
|
}
|
|
|
|
/* update reachability for child objects in NOT-OK state */
|
|
if (!children.empty())
|
|
OnReachabilityChanged(this, cr, children, origin);
|
|
}
|
|
|
|
if (!reachable)
|
|
SetLastStateUnreachable(Utility::GetTime());
|
|
|
|
SetCheckAttempt(attempt);
|
|
|
|
ServiceState new_state = cr->GetState();
|
|
SetStateRaw(new_state);
|
|
|
|
bool stateChange = (old_state != new_state);
|
|
if (stateChange) {
|
|
SetLastStateChange(now);
|
|
|
|
/* remove acknowledgements */
|
|
if (GetAcknowledgement() == AcknowledgementNormal ||
|
|
(GetAcknowledgement() == AcknowledgementSticky && new_state == ServiceOK)) {
|
|
ClearAcknowledgement();
|
|
}
|
|
|
|
/* reschedule direct parents */
|
|
BOOST_FOREACH(const Checkable::Ptr& parent, GetParents()) {
|
|
if (parent.get() == this)
|
|
continue;
|
|
|
|
ObjectLock olock(parent);
|
|
parent->SetNextCheck(Utility::GetTime());
|
|
}
|
|
}
|
|
|
|
bool remove_acknowledgement_comments = false;
|
|
|
|
if (GetAcknowledgement() == AcknowledgementNone)
|
|
remove_acknowledgement_comments = true;
|
|
|
|
bool hardChange = (GetStateType() == StateTypeHard && old_stateType == StateTypeSoft);
|
|
|
|
if (stateChange && old_stateType == StateTypeHard && GetStateType() == StateTypeHard)
|
|
hardChange = true;
|
|
|
|
bool is_volatile = GetVolatile();
|
|
|
|
if (hardChange || is_volatile) {
|
|
SetLastHardStateRaw(new_state);
|
|
SetLastHardStateChange(now);
|
|
}
|
|
|
|
if (new_state != ServiceOK)
|
|
TriggerDowntimes();
|
|
|
|
Host::Ptr host;
|
|
Service::Ptr service;
|
|
tie(host, service) = GetHostService(this);
|
|
|
|
CheckableType checkable_type = CheckableHost;
|
|
if (service)
|
|
checkable_type = CheckableService;
|
|
|
|
/* statistics for external tools */
|
|
Checkable::UpdateStatistics(cr, checkable_type);
|
|
|
|
bool in_downtime = IsInDowntime();
|
|
bool send_notification = hardChange && notification_reachable && !in_downtime && !IsAcknowledged();
|
|
|
|
if (!old_cr)
|
|
send_notification = false; /* Don't send notifications for the initial state change */
|
|
|
|
if (old_state == ServiceOK && old_stateType == StateTypeSoft)
|
|
send_notification = false; /* Don't send notifications for SOFT-OK -> HARD-OK. */
|
|
|
|
if (is_volatile && old_state == ServiceOK && new_state == ServiceOK)
|
|
send_notification = false; /* Don't send notifications for volatile OK -> OK changes. */
|
|
|
|
bool send_downtime_notification = (GetLastInDowntime() != in_downtime);
|
|
SetLastInDowntime(in_downtime);
|
|
|
|
olock.Unlock();
|
|
|
|
if (remove_acknowledgement_comments)
|
|
RemoveCommentsByType(CommentAcknowledgement);
|
|
|
|
Dictionary::Ptr vars_after = new Dictionary();
|
|
vars_after->Set("state", new_state);
|
|
vars_after->Set("state_type", GetStateType());
|
|
vars_after->Set("attempt", GetCheckAttempt());
|
|
vars_after->Set("reachable", reachable);
|
|
|
|
if (old_cr)
|
|
cr->SetVarsBefore(old_cr->GetVarsAfter());
|
|
|
|
cr->SetVarsAfter(vars_after);
|
|
|
|
olock.Lock();
|
|
SetLastCheckResult(cr);
|
|
|
|
bool was_flapping, is_flapping;
|
|
|
|
was_flapping = IsFlapping();
|
|
if (GetStateType() == StateTypeHard)
|
|
UpdateFlappingStatus(stateChange);
|
|
is_flapping = IsFlapping();
|
|
|
|
/* update next check time for active and passive check results */
|
|
if (!GetEnableActiveChecks() && GetEnablePassiveChecks()) {
|
|
/* Reschedule the next passive check. The side effect of this is that for as long
|
|
* as we receive passive results for a service we won't execute any
|
|
* active checks. */
|
|
SetNextCheck(Utility::GetTime() + GetCheckInterval());
|
|
} else if (GetEnableActiveChecks()) {
|
|
/* update next check time based on state changes and types */
|
|
UpdateNextCheck();
|
|
}
|
|
|
|
olock.Unlock();
|
|
|
|
// Log(LogDebug, "Checkable")
|
|
// << "Flapping: Checkable " << GetName()
|
|
// << " was: " << (was_flapping)
|
|
// << " is: " << is_flapping)
|
|
// << " threshold: " << GetFlappingThreshold()
|
|
// << "% current: " + GetFlappingCurrent()) << "%.";
|
|
|
|
OnNewCheckResult(this, cr, origin);
|
|
|
|
/* signal status updates to for example db_ido */
|
|
OnStateChanged(this);
|
|
|
|
String old_state_str = (service ? Service::StateToString(old_state) : Host::StateToString(Host::CalculateState(old_state)));
|
|
String new_state_str = (service ? Service::StateToString(new_state) : Host::StateToString(Host::CalculateState(new_state)));
|
|
|
|
if (hardChange || is_volatile) {
|
|
OnStateChange(this, cr, StateTypeHard, origin);
|
|
Log(LogNotice, "Checkable")
|
|
<< "State Change: Checkable " << GetName() << " hard state change from " << old_state_str << " to " << new_state_str << " detected." << (is_volatile ? " Checkable is volatile." : "");
|
|
} else if (stateChange) {
|
|
OnStateChange(this, cr, StateTypeSoft, origin);
|
|
Log(LogNotice, "Checkable")
|
|
<< "State Change: Checkable " << GetName() << " soft state change from " << old_state_str << " to " << new_state_str << " detected.";
|
|
}
|
|
|
|
if (GetStateType() == StateTypeSoft || hardChange || recovery || is_volatile)
|
|
ExecuteEventHandler();
|
|
|
|
if (send_downtime_notification)
|
|
OnNotificationsRequested(this, in_downtime ? NotificationDowntimeStart : NotificationDowntimeEnd, cr, "", "");
|
|
|
|
if (!was_flapping && is_flapping) {
|
|
OnNotificationsRequested(this, NotificationFlappingStart, cr, "", "");
|
|
|
|
Log(LogNotice, "Checkable")
|
|
<< "Flapping: Checkable " << GetName() << " started flapping (" << GetFlappingThreshold() << "% < " << GetFlappingCurrent() << "%).";
|
|
|
|
NotifyFlapping(origin);
|
|
} else if (was_flapping && !is_flapping) {
|
|
OnNotificationsRequested(this, NotificationFlappingEnd, cr, "", "");
|
|
|
|
Log(LogNotice, "Checkable")
|
|
<< "Flapping: Checkable " << GetName() << " stopped flapping (" << GetFlappingThreshold() << "% >= " << GetFlappingCurrent() << "%).";
|
|
|
|
NotifyFlapping(origin);
|
|
} else if (send_notification)
|
|
OnNotificationsRequested(this, recovery ? NotificationRecovery : NotificationProblem, cr, "", "");
|
|
}
|
|
|
|
bool Checkable::IsCheckPending(void) const
|
|
{
|
|
ObjectLock olock(this);
|
|
return m_CheckRunning;
|
|
}
|
|
|
|
void Checkable::ExecuteRemoteCheck(const Dictionary::Ptr& resolvedMacros)
|
|
{
|
|
CONTEXT("Executing remote check for object '" + GetName() + "'");
|
|
|
|
double scheduled_start = GetNextCheck();
|
|
double before_check = Utility::GetTime();
|
|
|
|
CheckResult::Ptr cr = new CheckResult();
|
|
cr->SetScheduleStart(scheduled_start);
|
|
cr->SetExecutionStart(before_check);
|
|
|
|
GetCheckCommand()->Execute(this, cr, resolvedMacros, true);
|
|
}
|
|
|
|
void Checkable::ExecuteCheck(void)
|
|
{
|
|
CONTEXT("Executing check for object '" + GetName() + "'");
|
|
|
|
UpdateNextCheck();
|
|
|
|
bool reachable = IsReachable();
|
|
|
|
{
|
|
ObjectLock olock(this);
|
|
|
|
/* don't run another check if there is one pending */
|
|
if (m_CheckRunning)
|
|
return;
|
|
|
|
m_CheckRunning = true;
|
|
|
|
SetLastStateRaw(GetStateRaw());
|
|
SetLastStateType(GetLastStateType());
|
|
SetLastReachable(reachable);
|
|
}
|
|
|
|
/* keep track of scheduling info in case the check type doesn't provide its own information */
|
|
double scheduled_start = GetNextCheck();
|
|
double before_check = Utility::GetTime();
|
|
|
|
CheckResult::Ptr cr = new CheckResult();
|
|
|
|
cr->SetScheduleStart(scheduled_start);
|
|
cr->SetExecutionStart(before_check);
|
|
|
|
Endpoint::Ptr endpoint = GetCommandEndpoint();
|
|
bool local = !endpoint || endpoint == Endpoint::GetLocalEndpoint();
|
|
|
|
if (local) {
|
|
GetCheckCommand()->Execute(this, cr, NULL, false);
|
|
} else {
|
|
Dictionary::Ptr macros = new Dictionary();
|
|
GetCheckCommand()->Execute(this, cr, macros, false);
|
|
|
|
if (endpoint->GetConnected()) {
|
|
/* perform check on remote endpoint */
|
|
Dictionary::Ptr message = new Dictionary();
|
|
message->Set("jsonrpc", "2.0");
|
|
message->Set("method", "event::ExecuteCommand");
|
|
|
|
Host::Ptr host;
|
|
Service::Ptr service;
|
|
tie(host, service) = GetHostService(this);
|
|
|
|
Dictionary::Ptr params = new Dictionary();
|
|
message->Set("params", params);
|
|
params->Set("command_type", "check_command");
|
|
params->Set("command", GetCheckCommand()->GetName());
|
|
params->Set("host", host->GetName());
|
|
|
|
if (service)
|
|
params->Set("service", service->GetShortName());
|
|
|
|
params->Set("macros", macros);
|
|
|
|
ApiListener::Ptr listener = ApiListener::GetInstance();
|
|
|
|
if (listener)
|
|
listener->SyncSendMessage(endpoint, message);
|
|
|
|
} else if (Application::GetInstance()->GetStartTime() < Utility::GetTime() - 30) {
|
|
/* fail to perform check on unconnected endpoint */
|
|
cr->SetState(ServiceUnknown);
|
|
|
|
cr->SetOutput("Remote Icinga instance '" + endpoint->GetName() +
|
|
"' " + "is not connected to '" + Endpoint::GetLocalEndpoint()->GetName() + "'");
|
|
|
|
ProcessCheckResult(cr);
|
|
}
|
|
|
|
{
|
|
ObjectLock olock(this);
|
|
m_CheckRunning = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Checkable::UpdateStatistics(const CheckResult::Ptr& cr, CheckableType type)
|
|
{
|
|
time_t ts = cr->GetScheduleEnd();
|
|
|
|
if (type == CheckableHost) {
|
|
if (cr->GetActive())
|
|
CIB::UpdateActiveHostChecksStatistics(ts, 1);
|
|
else
|
|
CIB::UpdatePassiveHostChecksStatistics(ts, 1);
|
|
} else if (type == CheckableService) {
|
|
if (cr->GetActive())
|
|
CIB::UpdateActiveServiceChecksStatistics(ts, 1);
|
|
else
|
|
CIB::UpdatePassiveServiceChecksStatistics(ts, 1);
|
|
} else {
|
|
Log(LogWarning, "Checkable", "Unknown checkable type for statistic update.");
|
|
}
|
|
}
|
|
|
|
double Checkable::CalculateExecutionTime(const CheckResult::Ptr& cr)
|
|
{
|
|
if (!cr)
|
|
return 0;
|
|
|
|
return cr->GetExecutionEnd() - cr->GetExecutionStart();
|
|
}
|
|
|
|
double Checkable::CalculateLatency(const CheckResult::Ptr& cr)
|
|
{
|
|
if (!cr)
|
|
return 0;
|
|
|
|
double latency = (cr->GetScheduleEnd() - cr->GetScheduleStart()) - CalculateExecutionTime(cr);
|
|
|
|
if (latency < 0)
|
|
latency = 0;
|
|
|
|
return latency;
|
|
}
|