mirror of
https://github.com/Icinga/icinga2.git
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5fe6b68b89
This commit changes the ordering of CheckableScheduleInfo in the multi-index container to ensure that checkables with running checks are pushed to the end of the ordering. This prevents them from being prioritized for scheduling ahead of others, which could lead to unnecessary CPU load due to repeated scheduling attempts. By using a very large value for the index of checkables with running checks, they are effectively deprioritized until their current check is completed and they can be reinserted with their actual next check time.
285 lines
9.9 KiB
C++
285 lines
9.9 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#ifndef CHECKABLE_H
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#define CHECKABLE_H
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#include "base/atomic.hpp"
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#include "base/timer.hpp"
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#include "base/process.hpp"
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#include "icinga/i2-icinga.hpp"
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#include "icinga/checkable-ti.hpp"
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#include "icinga/timeperiod.hpp"
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#include "icinga/notification.hpp"
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#include "icinga/comment.hpp"
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#include "icinga/downtime.hpp"
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#include "base/wait-group.hpp"
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#include "remote/endpoint.hpp"
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#include "remote/messageorigin.hpp"
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#include <condition_variable>
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#include <cstdint>
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#include <functional>
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#include <limits>
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#include <variant>
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namespace icinga
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{
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/**
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* @ingroup icinga
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*/
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enum DependencyType
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{
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DependencyState,
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DependencyCheckExecution,
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DependencyNotification
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};
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/**
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* Checkable Types
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*
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* @ingroup icinga
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*/
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enum CheckableType
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{
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CheckableHost,
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CheckableService
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};
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/**
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* @ingroup icinga
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*/
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enum FlappingStateFilter
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{
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FlappingStateFilterOk = 1,
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FlappingStateFilterWarning = 2,
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FlappingStateFilterCritical = 4,
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FlappingStateFilterUnknown = 8,
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};
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class CheckCommand;
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class EventCommand;
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class Dependency;
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class DependencyGroup;
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/**
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* An Icinga service.
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*
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* @ingroup icinga
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*/
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class Checkable : public ObjectImpl<Checkable>
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{
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public:
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DECLARE_OBJECT(Checkable);
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DECLARE_OBJECTNAME(Checkable);
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static void StaticInitialize();
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static thread_local std::function<void(const Value& commandLine, const ProcessResult&)> ExecuteCommandProcessFinishedHandler;
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Checkable();
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std::set<Checkable::Ptr> GetParents() const;
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std::set<Checkable::Ptr> GetChildren() const;
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std::set<Checkable::Ptr> GetAllChildren() const;
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size_t GetAllChildrenCount() const;
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void AddGroup(const String& name);
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bool IsReachable(DependencyType dt = DependencyState) const;
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bool AffectsChildren() const;
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AcknowledgementType GetAcknowledgement();
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void AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify = true, bool persistent = false, double changeTime = Utility::GetTime(), double expiry = 0, const MessageOrigin::Ptr& origin = nullptr);
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void ClearAcknowledgement(const String& removedBy, double changeTime = Utility::GetTime(), const MessageOrigin::Ptr& origin = nullptr);
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int GetSeverity() const override;
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bool GetProblem() const override;
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bool GetHandled() const override;
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Timestamp GetNextUpdate() const override;
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/* Checks */
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intrusive_ptr<CheckCommand> GetCheckCommand() const;
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TimePeriod::Ptr GetCheckPeriod() const;
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long GetSchedulingOffset() const;
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void SetSchedulingOffset(long offset);
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void UpdateNextCheck(const MessageOrigin::Ptr& origin = nullptr);
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static String StateTypeToString(StateType type);
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bool HasBeenChecked() const;
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bool HasRunningCheck() const;
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virtual bool IsStateOK(ServiceState state) const = 0;
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double GetLastCheck() const final;
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virtual void SaveLastState(ServiceState state, double timestamp) = 0;
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static void UpdateStatistics(const CheckResult::Ptr& cr, CheckableType type);
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void ExecuteRemoteCheck(const WaitGroup::Ptr& producer, const Dictionary::Ptr& resolvedMacros = nullptr);
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void ExecuteCheck(const WaitGroup::Ptr& producer);
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enum class ProcessingResult
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{
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Ok,
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CheckableInactive,
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NewerCheckResultPresent,
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};
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ProcessingResult ProcessCheckResult(const CheckResult::Ptr& cr, const WaitGroup::Ptr& producer, const MessageOrigin::Ptr& origin = nullptr);
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Endpoint::Ptr GetCommandEndpoint() const;
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static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, const MessageOrigin::Ptr&)> OnNewCheckResult;
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static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, StateType, const MessageOrigin::Ptr&)> OnStateChange;
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static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, std::set<Checkable::Ptr>, const MessageOrigin::Ptr&)> OnReachabilityChanged;
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static boost::signals2::signal<void (const Checkable::Ptr&, NotificationType, const CheckResult::Ptr&,
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const String&, const String&, const MessageOrigin::Ptr&)> OnNotificationsRequested;
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static boost::signals2::signal<void (const Notification::Ptr&, const Checkable::Ptr&, const User::Ptr&,
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const NotificationType&, const CheckResult::Ptr&, const String&, const String&, const String&,
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const MessageOrigin::Ptr&)> OnNotificationSentToUser;
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static boost::signals2::signal<void (const Notification::Ptr&, const Checkable::Ptr&, const std::set<User::Ptr>&,
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const NotificationType&, const CheckResult::Ptr&, const String&,
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const String&, const MessageOrigin::Ptr&)> OnNotificationSentToAllUsers;
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static boost::signals2::signal<void (const Checkable::Ptr&, const String&, const String&, AcknowledgementType,
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bool, bool, double, double, const MessageOrigin::Ptr&)> OnAcknowledgementSet;
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static boost::signals2::signal<void (const Checkable::Ptr&, const String&, double, const MessageOrigin::Ptr&)> OnAcknowledgementCleared;
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static boost::signals2::signal<void (const Checkable::Ptr&, double)> OnFlappingChange;
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static boost::signals2::signal<void (const Checkable::Ptr&)> OnNextCheckUpdated;
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static boost::signals2::signal<void (const Checkable::Ptr&)> OnEventCommandExecuted;
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static Atomic<uint_fast64_t> CurrentConcurrentChecks;
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/* Downtimes */
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int GetDowntimeDepth() const final;
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void TriggerDowntimes(double triggerTime);
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bool IsInDowntime() const;
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bool IsAcknowledged() const;
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std::set<Downtime::Ptr> GetDowntimes() const;
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void RegisterDowntime(const Downtime::Ptr& downtime);
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void UnregisterDowntime(const Downtime::Ptr& downtime);
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/* Comments */
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void RemoveAllComments();
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void RemoveAckComments(const String& removedBy = String(), double createdBefore = std::numeric_limits<double>::max());
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std::set<Comment::Ptr> GetComments() const;
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Comment::Ptr GetLastComment() const;
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void RegisterComment(const Comment::Ptr& comment);
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void UnregisterComment(const Comment::Ptr& comment);
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/* Notifications */
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void SendNotifications(NotificationType type, const CheckResult::Ptr& cr, const String& author = "", const String& text = "");
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std::set<Notification::Ptr> GetNotifications() const;
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void RegisterNotification(const Notification::Ptr& notification);
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void UnregisterNotification(const Notification::Ptr& notification);
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void ResetNotificationNumbers();
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/* Event Handler */
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void ExecuteEventHandler(const Dictionary::Ptr& resolvedMacros = nullptr,
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bool useResolvedMacros = false);
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intrusive_ptr<EventCommand> GetEventCommand() const;
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/* Flapping Detection */
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bool IsFlapping() const;
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/* Dependencies */
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void PushDependencyGroupsToRegistry();
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std::vector<intrusive_ptr<DependencyGroup>> GetDependencyGroups() const;
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void AddDependency(const intrusive_ptr<Dependency>& dependency);
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void RemoveDependency(const intrusive_ptr<Dependency>& dependency, bool runtimeRemoved = false);
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std::vector<intrusive_ptr<Dependency> > GetDependencies(bool includePending = false) const;
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bool HasAnyDependencies() const;
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void AddReverseDependency(const intrusive_ptr<Dependency>& dep);
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void RemoveReverseDependency(const intrusive_ptr<Dependency>& dep);
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std::vector<intrusive_ptr<Dependency> > GetReverseDependencies() const;
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void ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& value) final;
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void ValidateRetryInterval(const Lazy<double>& lvalue, const ValidationUtils& value) final;
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void ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& value) final;
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bool NotificationReasonApplies(NotificationType type);
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bool NotificationReasonSuppressed(NotificationType type);
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bool IsLikelyToBeCheckedSoon();
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void FireSuppressedNotifications();
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static void IncreasePendingChecks();
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static void DecreasePendingChecks();
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static int GetPendingChecks();
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static void AquirePendingCheckSlot(int maxPendingChecks);
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protected:
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void Start(bool runtimeCreated) override;
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void OnConfigLoaded() override;
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void OnAllConfigLoaded() override;
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private:
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mutable std::mutex m_CheckableMutex;
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Atomic<bool> m_CheckRunning{false};
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long m_SchedulingOffset;
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static std::mutex m_StatsMutex;
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static int m_PendingChecks;
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static std::condition_variable m_PendingChecksCV;
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/* Downtimes */
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std::set<Downtime::Ptr> m_Downtimes;
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mutable std::mutex m_DowntimeMutex;
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static void NotifyFixedDowntimeStart(const Downtime::Ptr& downtime);
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static void NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime);
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static void NotifyDowntimeInternal(const Downtime::Ptr& downtime);
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static void NotifyDowntimeEnd(const Downtime::Ptr& downtime);
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static void FireSuppressedNotificationsTimer(const Timer * const&);
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static void CleanDeadlinedExecutions(const Timer * const&);
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/* Comments */
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std::set<Comment::Ptr> m_Comments;
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mutable std::mutex m_CommentMutex;
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/* Notifications */
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std::set<Notification::Ptr> m_Notifications;
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mutable std::mutex m_NotificationMutex;
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/* Dependencies */
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mutable std::mutex m_DependencyMutex;
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std::map<std::variant<Checkable*, String>, intrusive_ptr<DependencyGroup>> m_DependencyGroups;
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std::set<intrusive_ptr<Dependency> > m_ReverseDependencies;
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/**
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* Registering a checkable to its parent DependencyGroups is delayed during config loading until all dependencies
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* were registered on the checkable. m_PendingDependencies is used to temporarily store the dependencies until then.
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* It is a pointer type for two reasons:
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* 1. The field is no longer needed after the DependencyGroups were registered, having it as a pointer reduces the
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* overhead from sizeof(std::map<>) to sizeof(std::map<>*).
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* 2. It allows the field to also be used as a flag: the delayed group registration is only done until it is reset
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* to nullptr.
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*/
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std::unique_ptr<std::map<std::variant<Checkable*, String>, std::set<intrusive_ptr<Dependency>>>>
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m_PendingDependencies {std::make_unique<decltype(m_PendingDependencies)::element_type>()};
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void GetAllChildrenInternal(std::set<Checkable::Ptr>& seenChildren, int level = 0) const;
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/* Flapping */
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static const std::map<String, int> m_FlappingStateFilterMap;
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void UpdateFlappingStatus(ServiceState newState);
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static int ServiceStateToFlappingFilter(ServiceState state);
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};
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}
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#endif /* CHECKABLE_H */
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#include "icinga/dependency.hpp"
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