A method and a device for processing a failure in at least one distributed cluster, and a system, where the at least one distributed cluster includes a first distributed cluster. The first distributed cluster includes a first Master node, a first Slave node, a first reference node, and a first secondary node that serves as a backup of the first Master node. The first secondary node receives a heartbeat message that includes first indication information. The first secondary node determines, according to the first indication information, that the first reference node is disconnected from the first Master node. The first secondary node determines that the first secondary node is also disconnected from the first Master node when it is detected that a heartbeat message from the first Master node to the first secondary node is interrupted. The first secondary node determines the first Master node is faulty.

Embodiments are disclosed that allow data to be sent between a Bluetooth enabled device and a virtual device associated with a corresponding physical device. In particular, embodiments of a virtual mobile device system may include one or more components for processing Bluetooth calls where these Bluetooth components may process received Bluetooth calls in a first manner in a connected state and process Bluetooth calls in a disconnected state in a second manner.

Embodiments are disclosed that allow data to be sent between a Bluetooth enabled device and a virtual device associated with a corresponding physical device. In particular, embodiments of a virtual mobile device system may include one or more components for processing Bluetooth calls where these Bluetooth components may process received Bluetooth calls in a first manner in a connected state and process Bluetooth calls in a disconnected state in a second manner.

A method for reducing data transmission delay is provided. The method includes: detecting whether a terminal has data sending or receiving, and determining whether a current network is idle; determining, if detecting that the terminal has no data sending or receiving, that the current network is idle, connecting and communicating with a server at a preset time interval, and maintaining the communication channel with the server. By the method, whether the network is idle is detected; when it is detected that the network is idle, connect and communicate with the server at a preset time interval, and maintain the communication channel with the server. This avoids the release of the channel due to idle network, and consequently avoids the need of re-establishing the channel when data transmission is enabled again, thereby reducing data transmission delay. Furthermore, a system for monitoring operation platform is also disclosed.

Embodiments of the present invention disclose a heartbeat period setting method, including: setting a heartbeat period of a tested application to T2 and performing a first heartbeat test; setting heartbeat periods of multiple applications to TI if the first heartbeat test is not passed, and performing heartbeat services; or setting the heartbeat period of the tested application to T3 if the first heartbeat test is passed, and performing a second heartbeat test; and setting the heartbeat periods of the multiple applications to T2 if the second heartbeat test is not passed, and performing heartbeat services; or setting the heartbeat period of the tested application to T4 if the second heartbeat test is passed, and performing a third heartbeat test, where T1<T2<T3<T4. The embodiments of the present invention further disclose a corresponding mobile terminal. According to the heartbeat period setting method and the terminal in the embodiments of the present invention, applications perform heartbeat services at a same moment by using a same heartbeat period, so that energy consumption of the terminal and signaling overheads are effectively reduced, and a load on an application server can further be reduced.

A session managing unit connects an interprocess communication between a server device and a client device, and receives a session start message (400) including the first server program identifier that identifies the first server program and the second server program identifier that identifies the second server program, from the client device. When the session start message (400) is received, the session managing unit connects an interprocess communication between a process of the first server program and a process of the second server program.

In an embodiment, a method is performed by one or more processors and comprises obtaining a hiatus declaration that indicates that a network device will be incommunicable; suspending communication with the network device until expiration of a hiatus time period during which the network device is expected to be incommunicable; resuming communication with the network device in response to any of: determining that the hiatus time period has expired; obtaining a keep-alive message from the network device; or obtaining other indication that the network device can communicate.

Exemplary embodiments for enabling planned network changes such as an upgrade or downgrade of a network device are disclosed. The systems and methods provide for planned upgrades and downgrades for network devices without impacting existing network sessions, by utilizing two network devices simultaneously, and creating a redirect network session for a predetermined period of time. In so doing, all network traffic may be gradually transferred to the second network device, until the sessions processed by the first network device time out. The first network device can then be taken offline for upgrade or downgrade, without any disruption to the network service or loss of network traffic.

This application discloses a communications method and apparatus. The method includes: sending, by a session management network element, first indication information when the session management network element determines, based on first information, to establish a first low-latency service flow for a session; and the first indication information is used to indicate to set the session to an always-on session. According to solutions of this application, when determining, based on the local configuration information, the subscription data, and the QoS parameter, to establish the low-latency service flow, the session management network element flexibly indicates a terminal apparatus to set the session to the always-on session. This avoids a resource waste caused by setting the session to the always-on session all the time, and avoids a transmission latency caused when the session is not set to the always-on session in time, so that resource utilization and transmission efficiency are improved.

There is provided mechanisms for configuration of liveness check using Internet key exchange messages. A method is performed by a user equipment. The method comprises transmitting, to a core network node, a first Internet key exchange message comprising a configuration attribute indicating support of receiving a timeout period for liveness check. The method comprises receiving, from the core network node, a second Internet key exchange message comprising a configuration attribute indicating a timeout period for said liveness check.