摘要:
Methods, systems, and products are disclosed for filtering application messages in a high speed, low latency data communications environment that include: receiving an application message in a transport engine of a message receiving device from a message transmitting device, the application message having a message contents label and a collision indicator, the message contents label representing contents of the application message, the collision indicator specifying whether the message contents label represents different contents in at least one other application message; determining, by the transport engine, whether contents of the application message satisfy a transport layer constraint in dependence upon the message contents label; providing, by the transport engine, the application message and the collision indicator to messaging middleware of the message receiving device if the contents of the application message satisfy the transport layer constraint; and administering the application message, by the messaging middleware, in dependence upon the collision indicator.
摘要:
A method, system and computer program product for transmitting data entities, the method includes: receiving data entities to be transmitted over multiple channels; and preventing a transmission of data entities that are to be transmitted over congested channels while transmitting data entities that are to be are to be transmitted over non-congested channels.
摘要:
Methods, systems, and products are disclosed for filtering application messages in a high speed, low latency data communications environment that include: receiving an application message in a transport engine of a message receiving device from a message transmitting device, the application message having a message contents label and a collision indicator, the message contents label representing contents of the application message, the collision indicator specifying whether the message contents label represents different contents in at least one other application message; determining, by the transport engine, whether contents of the application message satisfy a transport layer constraint in dependence upon the message contents label; providing, by the transport engine, the application message and the collision indicator to messaging middleware of the message receiving device if the contents of the application message satisfy the transport layer constraint; and administering the application message, by the messaging middleware, in dependence upon the collision indicator.
摘要:
A group communication service maintains synchronization limiting the group to the processing entities that receive a plurality of source message streams from sources outside the group and transmit delivery message streams to destinations that are outside the group. Synchronization of message ordering and other state synchronization directives are communicated from a leader exclusively to other group members. Once having declared themselves to be synchronized and active by a reply protocol message, which is an opaque object and is interpreted by an application layer, the processing entities independently process the source message streams in accordance with the order specified in the directives, without requiring additional sequencing information from another processing entity.
摘要:
Methods, apparatus, and products are disclosed for synchronizing an active feed adapter and a backup feed adapter in a high speed, low latency data communications environment that include brokering, by a stream administration server, establishment of an active message stream to a subscribing client device from an active feed adapter, the active message stream capable of communicating active application messages; brokering, by the server, establishment of a backup message stream to the client device from a backup feed adapter, the backup message stream capable of communicating backup application messages; receiving an active feed adapter state in backup messaging middleware of the backup adapter from active messaging middleware of the active adapter; determining, by the backup feed adapter, whether a backup feed adapter state is synchronized with the active feed adapter state; and administering, by the backup feed adapter, operation of the backup adapter in dependence upon the determining.
摘要:
Deallocating resources allocated to a network communications session, including extrapolating an expected location of a selected node that belongs to a communications path of a network communications session, determining if the extrapolated location is beyond a predefined range from a neighboring node that belongs to the communications path of the network communications session and that immediately neighbors the selected node along the communications path, and deallocating any resources allocated to the network communications session if the extrapolated location is beyond the range.
摘要:
A method includes receiving active application messages that are part of an active message stream in a subscribing client device from an active feed adapter. Each active application message is characterized by an active source stream identifier, an active source stream sequence number, and an active message sequence number. The method includes receiving, in response to a failover from the active feed adapter to a backup feed adapter, backup application messages in the subscribing client device from the backup feed adapter. Each backup application message is characterized by a backup source stream identifier, a backup source stream sequence number, and a backup message sequence number. The method includes administering, by the subscribing client device, the backup application messages in dependence upon the active stream source identifier, the active stream source sequence number, the backup stream source identifier, and the backup stream source sequence number.
摘要:
A method includes receiving active application messages that are part of an active message stream in a subscribing client device from an active feed adapter. Each active application message is characterized by an active source stream identifier, an active source stream sequence number, and an active message sequence number. The method includes receiving, in response to a failover from the active feed adapter to a backup feed adapter, backup application messages in the subscribing client device from the backup feed adapter. Each backup application message is characterized by a backup source stream identifier, a backup source stream sequence number, and a backup message sequence number. The method includes administering, by the subscribing client device, the backup application messages in dependence upon the active stream source identifier, the active stream source sequence number, the backup stream source identifier, and the backup stream source sequence number.
摘要:
Deallocating resources allocated to a network communications session, including extrapolating an expected location of a selected node that belongs to a communications path of a network communications session, determining if the extrapolated location is beyond a predefined range from a neighboring node that belongs to the communications path of the network communications session and that immediately neighbors the selected node along the communications path, and deallocating any resources allocated to the network communications session if the extrapolated location is beyond the range.
摘要:
Methods, apparatus, and products are disclosed for synchronizing an active feed adapter and a backup feed adapter in a high speed, low latency data communications environment that include brokering, by a stream administration server, establishment of an active message stream to a subscribing client device from an active feed adapter, the active message stream capable of communicating active application messages; brokering, by the server, establishment of a backup message stream to the client device from a backup feed adapter, the backup message stream capable of communicating backup application messages; receiving an active feed adapter state in backup messaging middleware of the backup adapter from active messaging middleware of the active adapter; determining, by the backup feed adapter, whether a backup feed adapter state is synchronized with the active feed adapter state; and administering, by the backup feed adapter, operation of the backup adapter in dependence upon the determining.