Package com.lightstreamer.jmx

Interface StreamMBean

  • public interface StreamMBean
    One StreamMBean instance exists in the system, to provide information related to the data push activity of the Server. It is created at startup by Lightstreamer Server and lasts until the shutdown of the Server.

    StreamMBean name:
    "com.lightstreamer:type=Stream"

    • Method Detail

      • getCumulOutboundBytes

        java.lang.Long getCumulOutboundBytes()
        Returns:
        The total (cumulative) number of bytes sent in the life of the Server (for Streaming and Polling Connections only). The count includes all HTTP contents sent.
        See Also:
        getCumulItemUpdates()

      • getCumulItemUpdates

        java.lang.Long getCumulItemUpdates()
        Returns:
        The total (cumulative) number of outbound Item Updates sent in the life of the Server. The count includes all Updates sent to the Clients through Streaming and Polling Connections; Updates sent through the Push Notification service are not included.

      • getItemUpdateFrequency

        java.lang.Double getItemUpdateFrequency()
        Returns:
        The frequency of outbound Item Updates sent in the last sampling period. It is expressed as updates per second; the value has a three decimal precision.
        See Also:
        getCumulItemUpdates()

      • getMaxItemUpdateFrequency

        java.lang.Double getMaxItemUpdateFrequency()
        Returns:
        The maximum frequency of outbound Item Updates reached in the life of the Server. It is expressed as updates per second; the value has a three decimal precision.
        See Also:
        getCumulItemUpdates()

      • getCumulInboundEvents

        java.lang.Long getCumulInboundEvents()
        Returns:
        The total (cumulative) number of inbound events flowing from all Data Adapters, within any Adapter Set, into LS Kernel.
        See Also:
        ResourceMBean.getTotalSubscribedItems()

      • getInboundEventFrequency

        java.lang.Double getInboundEventFrequency()
        Returns:
        The frequency of inbound events flowing from all Data Adapters, within any Adapter Set, into LS Kernel in the last sampling period. It is expressed as events per second; the value has a three decimal precision.
        See Also:
        ResourceMBean.getTotalSubscribedItems()

      • getMaxInboundEventFrequency

        java.lang.Double getMaxInboundEventFrequency()
        Returns:
        The maximum frequency of inbound events, flowing from all Data Adapters, within any Adapter Set, into LS Kernel, that has been reached in the life of the Server. It is expressed as events per second; the value has a three decimal precision.
        See Also:
        ResourceMBean.getTotalSubscribedItems()

      • getCumulPreprocOutboundEvents

        java.lang.Long getCumulPreprocOutboundEvents()
        Returns:
        The total (cumulative) number of outbound events flowing from the Preprocessor of LS Kernel.

      • getOutboundPreprocEventFrequency

        java.lang.Double getOutboundPreprocEventFrequency()
        Returns:
        The frequency of outbound events flowing from the Preprocessor of LS Kernel in the last sampling period. It is expressed as events per second; the value has a three decimal precision.

      • getMaxOutboundPreprocEventFrequency

        java.lang.Double getMaxOutboundPreprocEventFrequency()
        Returns:
        The maximum frequency of outbound events flowing from the Preprocessor of LS Kernel reached in the life of the Server. It is expressed as events per second; the value has a three decimal precision.

      • getCurrentBandwidthKbps

        java.lang.Double getCurrentBandwidthKbps()
        Returns:
        The current global outbound bandwidth used by the Server (for Streaming and Polling Connections only) in the last sampling period. The count includes network overheads. It is expressed as Kilobits per second; the value has a three decimal precision.

      • getMaxBandwidthKbps

        java.lang.Double getMaxBandwidthKbps()
        Returns:
        The maximum global outbound bandwidth used by the Server in its life (for Streaming and Polling Connections only). The count includes network overheads. It is expressed as Kilobits per second; the value has a three decimal precision.

      • getAvgSessionBandwidthKbps

        java.lang.Double getAvgSessionBandwidthKbps()
        Returns:
        The average outbound bandwidth used by the Server for each currently active Streaming or Polling Connection (in the last sampling period). The count includes network overheads. It is expressed as Kilobits per second; the value has a three decimal precision.

      • getAllocatedBandwidthKbps

        java.lang.Double getAllocatedBandwidthKbps()
        Returns:
        The current outbound allocated bandwidth, calculated as the sum of the maximum outbound bandwidth limits currently enforced by the Server for each active Streaming or Polling Connection. Note that an enforced limit can be smaller than the limit granted to a client, if the client has asked for a custom limit. It is expressed as Kilobits per second; the value has a three decimal precision; a 0 value means that no limit is set. Note that this aggregated value is meaningful only when bandwidth limits are enforced on all Sessions; if even a single Session has no limit currently enforced, the aggregated value is 0.

      • getCumulMessageBytes

        java.lang.Long getCumulMessageBytes()
        Returns:
        The total (cumulative) number of bytes submitted to the Metadata Adapter in the life of the Server and related to Client Messages associated to sendMessage requests. The count includes the byte length of the String objects carrying the messages, according with their internal UTF-16 encoding.

      • getCumulMessages

        java.lang.Long getCumulMessages()
        Returns:
        The total (cumulative) number of Client Messages submitted to the Metadata Adapter in the life of the Server.

      • getMessageFrequency

        java.lang.Double getMessageFrequency()
        Returns:
        The frequency of Client Messages submitted to the Metadata Adapter in the last sampling period. It is expressed as messages per second; the value has a three decimal precision.

      • getMaxMessageFrequency

        java.lang.Double getMaxMessageFrequency()
        Returns:
        The maximum frequency of Client Messages submitted to the Metadata Adapter reached in the life of the Server. It is expressed as messages per second; the value has a three decimal precision.

      • getCurrentMessageThroughputKbps

        java.lang.Double getCurrentMessageThroughputKbps()
        Returns:
        The current global throughput (measured in the last sampling period) related to the submission to the Metadata Adapter of Client Messages associated to sendMessage requests. The count includes the byte length of the String objects carrying the messages, according with their internal UTF-16 encoding. It is expressed as Kilobits per second; the value has a three decimal precision.

      • getMaxMessageThroughputKbps

        java.lang.Double getMaxMessageThroughputKbps()
        Returns:
        The maximum global throughput (occurred in the life of the Server) related to the submission to the Metadata Adapter of Client Messages associated to sendMessage requests. The count includes the byte length of the String objects carrying the messages, according with their internal UTF-16 encoding. It is expressed as Kilobits per second; the value has a three decimal precision.

      • getNewLostEvents

        java.lang.Integer getNewLostEvents()
        Returns:
        The number of lost events on all Sessions (as specified for SessionMBean.getNewLostEvents()) in the last sampling period.

      • getCumulLostEvents

        java.lang.Long getCumulLostEvents()
        Returns:
        The total (cumulative) number of lost events on all Sessions (as specified for SessionMBean.getNewLostEvents()) in the life of the Server.

      • getNewFilteredEvents

        java.lang.Integer getNewFilteredEvents()
        Returns:
        The number of filtered events on all Sessions (as specified for SessionMBean.getNewFilteredEvents()) in the last sampling period.

      • getCumulFilteredEvents

        java.lang.Long getCumulFilteredEvents()
        Returns:
        The total (cumulative) number of filtered events on all Sessions (as specified for SessionMBean.getNewFilteredEvents()) in the life of the Server.