Package org.eclipse.jetty.server

Class LowResourceMonitor

java.lang.Object
org.eclipse.jetty.util.component.AbstractLifeCycle
org.eclipse.jetty.util.component.ContainerLifeCycle
org.eclipse.jetty.server.LowResourceMonitor
All Implemented Interfaces:
Container, Destroyable, Dumpable, Dumpable.DumpableContainer, LifeCycle
@ManagedObject("Monitor for low resource conditions and activate a low resource mode if detected") @Deprecated(since="2021-05-27") public class LowResourceMonitor extends ContainerLifeCycle
Deprecated.
The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
A monitor for low resources, low resources can be detected by:

  • Constructor Details

    • LowResourceMonitor

      public LowResourceMonitor(@Name("server") Server server)
      Deprecated.

  • Method Details

    • getMonitorThreads

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

    • setMonitorThreads

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

    • getMaxConnections

      @ManagedAttribute("The maximum connections allowed for the monitored connectors before low resource handling is activated") @Deprecated public int getMaxConnections()
      Deprecated.
      Replaced by ConnectionLimit
      Returns:
      The maximum connections allowed for the monitored connectors before low resource handling is activated

    • setMaxConnections

      @Deprecated public void setMaxConnections(int maxConnections)
      Deprecated.
      Replaced by ConnectionLimit
      Parameters:
      maxConnections - The maximum connections before low resources state is triggered

    • getReasons

      @ManagedAttribute("The reasons the monitored connectors are low on resources") public String getReasons()
      Deprecated.

    • isLowOnResources

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

    • getLowResourcesReasons

      @ManagedAttribute("The reason(s) the monitored connectors are low on resources") public String getLowResourcesReasons()
      Deprecated.

    • getLowResourcesStarted

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

    • setLowResourcesStarted

      public void setLowResourcesStarted(long lowStarted)
      Deprecated.

    • getMonitoredConnectors

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

    • setMonitoredConnectors

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

    • isAcceptingInLowResources

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

    • setAcceptingInLowResources

      public void setAcceptingInLowResources(boolean acceptingInLowResources)
      Deprecated.

    • getPeriod

      @ManagedAttribute("The monitor period in ms") public int getPeriod()
      Deprecated.

    • setPeriod

      public void setPeriod(int periodMS)
      Deprecated.
      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()
      Deprecated.

    • setLowResourcesIdleTimeout

      public void setLowResourcesIdleTimeout(int lowResourcesIdleTimeoutMS)
      Deprecated.
      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()
      Deprecated.

    • setMaxLowResourcesTime

      public void setMaxLowResourcesTime(int maxLowResourcesTimeMS)
      Deprecated.
      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()
      Deprecated.

    • setMaxMemory

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

    • getLowResourceChecks

      public Set<LowResourceMonitor.LowResourceCheck> getLowResourceChecks()
      Deprecated.

    • setLowResourceChecks

      public void setLowResourceChecks(Set<LowResourceMonitor.LowResourceCheck> lowResourceChecks)
      Deprecated.

    • addLowResourceCheck

      public void addLowResourceCheck(LowResourceMonitor.LowResourceCheck lowResourceCheck)
      Deprecated.