Class LowResourceMonitor

    • Field Detail

      • _server

        protected final Server _server
    • Constructor Detail

      • LowResourceMonitor

        public LowResourceMonitor​(@Name("server")
                                  Server server)
    • Method Detail

      • getMonitorThreads

        @ManagedAttribute("True if low available threads status is monitored")
        public boolean getMonitorThreads()
      • setMonitorThreads

        public void setMonitorThreads​(boolean monitorThreads)
        Parameters:
        monitorThreads - If true, check connectors executors to see if they are ThreadPool instances that are low on threads.
      • getReasons

        @ManagedAttribute("The reasons the monitored connectors are low on resources")
        public java.lang.String getReasons()
      • setReasons

        protected void setReasons​(java.lang.String reasons)
      • isLowOnResources

        @ManagedAttribute("Are the monitored connectors low on resources?")
        public boolean isLowOnResources()
      • enableLowOnResources

        protected boolean enableLowOnResources​(boolean expectedValue,
                                               boolean newValue)
      • getLowResourcesReasons

        @ManagedAttribute("The reason(s) the monitored connectors are low on resources")
        public java.lang.String getLowResourcesReasons()
      • setLowResourcesReasons

        protected void setLowResourcesReasons​(java.lang.String reasons)
      • getLowResourcesStarted

        @ManagedAttribute("Get the timestamp in ms since epoch that low resources state started")
        public long getLowResourcesStarted()
      • setLowResourcesStarted

        public void setLowResourcesStarted​(long lowStarted)
      • getMonitoredConnectors

        @ManagedAttribute("The monitored connectors. If null then all server connectors are monitored")
        public java.util.Collection<Connector> getMonitoredConnectors()
      • setMonitoredConnectors

        public void setMonitoredConnectors​(java.util.Collection<Connector> monitoredConnectors)
        Parameters:
        monitoredConnectors - The collections of Connectors that should be monitored for low resources.
      • getMonitoredOrServerConnectors

        protected Connector[] getMonitoredOrServerConnectors()
      • isAcceptingInLowResources

        @ManagedAttribute("If false, new connections are not accepted while in low resources")
        public boolean isAcceptingInLowResources()
      • setAcceptingInLowResources

        public void setAcceptingInLowResources​(boolean acceptingInLowResources)
      • setPeriod

        public void setPeriod​(int periodMS)
        Parameters:
        periodMS - The period in ms to monitor for low resources
      • getLowResourcesIdleTimeout

        @ManagedAttribute("The idletimeout in ms to apply to all existing connections when low resources is detected")
        public int getLowResourcesIdleTimeout()
      • setLowResourcesIdleTimeout

        public void setLowResourcesIdleTimeout​(int lowResourcesIdleTimeoutMS)
        Parameters:
        lowResourcesIdleTimeoutMS - The timeout in ms to apply to EndPoints when in the low resources state.
      • getMaxLowResourcesTime

        @ManagedAttribute("The maximum time in ms that low resources condition can persist before lowResourcesIdleTimeout is applied to new connections as well as existing connections")
        public int getMaxLowResourcesTime()
      • setMaxLowResourcesTime

        public void setMaxLowResourcesTime​(int maxLowResourcesTimeMS)
        Parameters:
        maxLowResourcesTimeMS - The time in milliseconds that a low resource state can persist before the low resource idle timeout is reapplied to all connections
      • getMaxMemory

        @ManagedAttribute("The maximum memory (in bytes) that can be used before low resources is triggered.  Memory used is calculated as (totalMemory-freeMemory).")
        public long getMaxMemory()
      • setMaxMemory

        public void setMaxMemory​(long maxMemoryBytes)
        Parameters:
        maxMemoryBytes - The maximum memory in bytes in use before low resources is triggered.
      • monitor

        protected void monitor()
      • doStart

        protected void doStart()
                        throws java.lang.Exception
        Description copied from class: ContainerLifeCycle
        Starts the managed lifecycle beans in the order they were added.
        Overrides:
        doStart in class ContainerLifeCycle
        Throws:
        AbstractLifeCycle.StopException - If thrown, the lifecycle will immediately be stopped.
        java.lang.Exception - If there was a problem starting. Will cause a transition to FAILED state
      • doStop

        protected void doStop()
                       throws java.lang.Exception
        Description copied from class: ContainerLifeCycle
        Stops the managed lifecycle beans in the reverse order they were added.
        Overrides:
        doStop in class ContainerLifeCycle
        Throws:
        java.lang.Exception - If there was a problem stopping. Will cause a transition to FAILED state
      • setLowResources

        protected void setLowResources()
      • clearLowResources

        protected void clearLowResources()
      • low

        protected java.lang.String low​(java.lang.String reasons,
                                       java.lang.String newReason)