CN113301103A - Data processing system, method and device - Google Patents
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Abstract
This specification provides data processing systems, methods, and apparatus, wherein the data processing system comprises: a sending server configured to monitor a network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel; the receiving server is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; under the condition that the queue serial number of the second connection queue is reset, sending reset completion information to a sending server through an out-of-band channel; a sending server further configured to receive reset completion information; resetting the queue sequence number of the first connection queue according to the reset completion information; in the case where the queue number reset of the first connection queue is completed, the first connection queue is set to a transmittable state.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a data processing system, method, and apparatus.
Background
Data center networks increasingly use RDMA (Remote Direct Memory Access) to implement high-performance network transmission services of distributed computing and distributed storage, the distributed computing and storage of data centers usually use an all-internet communication model in a cluster, and RDMA network connection is established between each service node.
In a large-scale cluster, a full internet model can generate massive RDMA network connection on each server node, when a network fault or network jitter occurs, problems of data retransmission timeout or heartbeat timeout and the like can be generated, so that a large number of connection disconnection events are generated on each node core, then explosive memory resource recovery is started, after the network fault is recovered, a request for establishing connection is reinitiated for the disconnected connection in a short time when the full internet model is applied, a large number of connection establishment events and explosive memory resource allocation are generated in the cores, and as the process is very sudden, the utilization rate of a CPU is increased rapidly in a short time, machine load jitter and a large number of memory and cache refreshing can be realized, the whole connection establishment recovery process can be finished in a long time, and the availability and stability of the whole cluster service are influenced to a great extent, there is therefore a need for an effective solution to the above problems.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a data processing system, method and apparatus to solve technical defects in the prior art.
According to a first aspect of embodiments herein, there is provided a data processing system comprising:
a sending server and a receiving server;
the sending server is configured to monitor the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel;
the receiving server is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset;
the sending server is further configured to receive reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
Optionally, the sending server is further configured to:
receiving an expected queue sequence number sent by the receiving server;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number;
if so, determining that the network state is normal;
if not, determining that the network state is abnormal.
Optionally, the sending server is further configured to:
executing retransmission processing under the condition that the current queue serial number of the first connection queue is different from the expected queue serial number;
and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
Optionally, the first connection queue comprises a first sending queue;
the sending server is further configured to determine whether the current queue number of the first sending queue is the same as the expected queue number.
Optionally, the first connection queue includes a first sending queue and a first receiving queue;
the sending server is further configured to reset the queue number of the first sending queue and the queue number of the first receiving queue according to the reset completion information.
Optionally, the sending server is further configured to set the first connection queue to a sending stop state through a sending network card.
Optionally, the sending server is further configured to set the first connection queue to a transmittable state through the sending network card.
Optionally, the second connection queue includes a second sending queue and a second receiving queue;
the receiving server is further configured to reset the queue number of the second sending queue and the queue number of the second receiving queue in response to the queue reset request.
According to a second aspect of embodiments herein, there is provided a data processing method including:
a sending server and a receiving server;
the sending server side monitors the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel;
the receiving server receives a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset;
the sending server receives reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
According to a third aspect of the embodiments of the present specification, there is provided a data processing method, applied to a sending server, including:
monitoring a network state, and setting a first connection queue to be in a sending stop state under the condition that the network state is abnormal;
sending a queue resetting request to a receiving server through an out-of-band channel;
receiving reset completion information which is sent by the receiving server and generated in response to the queue reset request;
resetting the queue sequence number of the first connection queue according to the reset completion information;
and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
According to a fourth aspect of the embodiments of the present specification, there is provided a data processing method, applied to a receiving server, including:
receiving a queue resetting request sent by a sending server;
resetting a queue number of a second connection queue in response to the queue reset request;
and sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset completely.
According to a fifth aspect of the embodiments of the present specification, there is provided a data processing apparatus, applied to a sending server, including:
the monitoring module monitors a network state and sets the first connection queue to be in a sending stop state under the condition that the network state is abnormal;
the sending module is configured to send a queue resetting request to the receiving server through an out-of-band channel;
a receiving module configured to receive reset completion information sent by the receiving server and generated in response to the queue reset request;
a reset module configured to reset a queue number of the first connection queue according to the reset completion information;
a setting module configured to set the first connection queue to a transmittable state if a queue number reset of the first connection queue is completed.
According to a sixth aspect of the embodiments of the present specification, there is provided a data processing apparatus, applied to a receiving server, including:
the receiving module is configured to receive a queue resetting request sent by a sending server;
a reset module configured to reset a queue number of a second connection queue in response to the queue reset request;
and the sending module is configured to send reset completion information to the sending server through an out-of-band channel under the condition that the queue sequence number of the second connection queue is reset completely.
According to a seventh aspect of embodiments herein, there is provided a computing device comprising a memory, a processor and computer instructions stored on the memory and executable on the processor, the processor implementing the steps of any of the data processing methods described above when executing the instructions.
According to an eighth aspect of embodiments herein, there is provided a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of any of the data processing methods.
The present specification provides a data processing system including: a sending server and a receiving server; the sending server is configured to monitor the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel; the receiving server is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset; the sending server is further configured to receive reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; setting the first connection queue to a transmittable state when the reset of the queue number of the first connection queue is completed; by the system, under the scene that a network is in fault and a connection error occurs, the communication service between the first connection queue and the second connection queue is quickly recovered by resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel, so that a large number of connection disconnection and established kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after the fault are improved.
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FIG. 1 is a block diagram of a data processing system according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of a data processing method provided in an embodiment of the present specification;
fig. 3a is a schematic diagram of a communication state of the RMDA when the network is normal according to an embodiment of the present disclosure;
FIG. 3b is a schematic diagram of the communication status of the RMDA at the time of a network failure according to an embodiment of the present disclosure;
FIG. 3c is a schematic diagram of the communication status of the RMDA after the network failure is recovered, as provided by an embodiment of the present description;
fig. 4 is a processing flow chart of a data processing method applied to a sending server according to an embodiment of the present specification;
fig. 5 is a schematic structural diagram of a data processing apparatus applied to a sending server according to an embodiment of the present disclosure;
fig. 6 is a processing flow chart of a data processing method applied to a receiving server according to an embodiment of the present specification;
fig. 7 is a schematic structural diagram of a data processing apparatus applied to a receiving server according to an embodiment of the present disclosure;
fig. 8 is a block diagram of a computing device according to an embodiment of the present disclosure.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present description. This description may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make and use the present disclosure without departing from the spirit and scope of the present disclosure.
The terminology used in the description of the one or more embodiments is for the purpose of describing the particular embodiments only and is not intended to be limiting of the description of the one or more embodiments. As used in one or more embodiments of the present specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present specification refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It will be understood that, although the terms first, second, etc. may be used herein in one or more embodiments to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first can also be referred to as a second and, similarly, a second can also be referred to as a first without departing from the scope of one or more embodiments of the present description. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
First, the noun terms to which one or more embodiments of the present specification relate are explained.
RDMA: (Remote Direct Memory Access) is generated for solving the delay of server-side data processing in network transmission; RDMA transfers data directly to the storage area of a computer through a network, and quickly moves data from a system to a remote system memory without any influence on an operating system, so that the processing function of the computer is not needed; RDMA supports three queues, Send Queue (SQ) and Receive Queue (RQ), Completion Queue (CQ). Wherein the transmit Queue and receive Queue are typically created in Pairs, called Queue Pairs (QPs).
An out-of-band channel: (Out-Of-Band, OOB) requests server resources using some alternative channel than the conventional channel, which may be a TCP connection, UDP connection, or the like.
In this specification, data processing systems, methods, and apparatus are provided and are described in detail in the following examples.
In practical application, an RDMA network transmission service performs data communication with a remote node through a QP (reliable connection queue), and usually has a long connection, the application will not actively disconnect, data of the same QP will be encoded when being transmitted on the network, for example, the data packet is divided into a plurality of data packets after being processed by a network card, the numbering defaults to 0, and queue sequence numbers PSN of 0, 1, and 2 … … n are generated, when a first connection queue is established at a transmitting server and a second connection queue is established at a receiving server, an initial transmitting PSN of the transmitting server and an initial receiving PSN of the receiving server are negotiated, that is, the initial transmitting PSN of the transmitting server and the initial receiving PSN of the receiving server need to be consistent, the receiving server analyzes and obtains a carried PSN according to each received data packet, and compares the carried PSN with an expected receiving PSN stored locally, if the data packets are consistent, receiving the data packets and adding 1 to the expected received PSN to form the PSN of the next expected received data packet, otherwise discarding the data packets with inconsistent PSNs, and returning an ACK/NAK packet to the sending server, wherein the ACK/NAK packet comprises the PSN expected to be received by the receiving server and tells the sending server to retransmit from the PSN, if the number of times of retransmission exceeds a preset threshold, the network is judged to have a fault, and the connection is established again after disconnection, during which the surge of CPU utilization rate, machine load jitter, a large amount of refreshment of memory and cache can be caused, and the whole connection recovery process can be completed in a long time, so that the availability and stability of the whole cluster service can be obviously influenced.
Fig. 1 is a schematic structural diagram of a data processing system 100 provided in an embodiment of the present specification, including a sending server 110 and a receiving server 120:
the transmitting server 110 is configured to monitor a network status; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; and sending a queue resetting request to the receiving server through an out-of-band channel.
The receiving server 120 is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; and sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset completely.
The sending server 110 is further configured to receive reset completion information sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
Specifically, the sending server 110 specifically refers to any server in a distributed system, and correspondingly, the receiving server 120 specifically refers to a server having a network transmission relationship with the sending server 110, and the sending server 110 and the receiving server 120 establish an RDMA network connection to improve network transmission performance; the first connection queue is a QP1 in the sending server 110, and a queue number of the first connection queue is a QPN in the QP 1; the second connection queue is QP2 in the receiving server 120, and the queue number of the second connection queue is the QPN in QP 2; when the first connection queue QP1 is set to a transmission stop state, the transmission of the packet to the receiving server 120 is stopped, and when the first connection queue QP2 is set to a transmittable state, the packet can be transmitted to the receiving server 120; the first connection queue and the second connection queue are further connected via an out-of-band channel, such as a UDP connection, through which queue numbers of the first connection queue and the second connection queue may be negotiated.
Specifically, the application scenario of the embodiment provided in this specification is specifically directed to a case where a network state in a cluster is abnormal, and therefore, the sending server 110 needs to monitor the network state in the cluster, and when the network state is abnormal, the first connection queue in the sending server 110 is set to a sending stop state.
Specifically, the sending server 110 is further configured to:
receiving an expected queue sequence number sent by the receiving server;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number;
if so, determining that the network state is normal;
if not, determining that the network state is abnormal.
In practical applications, the sending server 110 sends a data packet to the receiving server 120, the receiving server 120 sends an expected queue number to the sending server 110, after the sending server 110 receives the expected queue number sent by the receiving server 120, the expected queue number is compared with a current queue number of a first connection queue stored locally, if the expected queue number and the current queue number are the same, it is described that there is no packet loss during transmission, the network is normal, and if the expected queue number and the current queue number are different, it is described that there is a packet loss during data transmission, and it is determined that the network is abnormal.
Optionally, the sending server is further configured to:
executing retransmission processing under the condition that the current queue serial number of the first connection queue is different from the expected queue serial number;
and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
In a specific application, retransmission times are set, for example, when queue numbers are inconsistent, a data packet may be retransmitted according to a preset retransmission time and a received expected queue number, and if the received expected queue number is still different from the queue number of the first connection queue after the retransmission of the preset number, it is determined that the network is abnormal.
Specifically, the first connection queue includes a first sending queue;
the sending server 110 is further configured to determine whether the current queue number of the first sending queue is the same as the expected queue number.
The RDMA-supported queues include a Send Queue (SQ) and a Receive Queue (RQ), where the Send Queue and the Receive Queue are usually created in Pairs and referred to as connection Queues (QP), and the connection Queue in the sending server 110 is referred to as a first connection Queue, and the Send Queue in the first connection Queue is the first Send Queue. When the sending server 110 receives the expected queue number sent by the receiving server 120, the expected queue number is compared with the current queue number in the first sending queue to determine whether the expected queue number and the current queue number are the same.
As described above, the first connection queue includes the first receiving queue in addition to the first sending queue, and accordingly, in practical applications, when the queue number of the first connection queue is reset according to the reset completion information sent by the receiving server 120, specifically, the queue number of the first sending queue and the queue number of the first receiving queue in the first connection queue are reset.
Correspondingly, the second connection queue also includes a second sending queue and a second receiving queue, and the receiving server 120 resets the queue number of the second sending queue and the queue number of the second receiving queue in response to the queue resetting request.
In practical applications, in the sending server 110, the network card of the sending-end server 110 generally sets the first connection queue to the stop sending state, and the network card of the sending-end server 110 also sets the first connection queue to the transmittable state.
In a specific embodiment provided in this specification, the sending server 110 monitors a network state in a cluster, where a queue number of a first sending queue is 5, and a received expected queue number sent by the receiving server 120 is 2, it is determined that there is a packet loss, and if there is a packet loss after a plurality of retries, it is determined that the current network state is abnormal, and a network card of the sending server 110 sets the first connection queue QP1 to a stop sending state, at this time, the first connection queue QP1 cannot receive data nor send data, and sends a queue reset request for resetting a queue number of a second connection queue in the receiving server 120 to a UDP connection of the receiving server 120 through a UDP connection of the sending server 110.
After receiving the queue reset request, the receiving server 120 resets both the queue number of the second sending queue and the queue number of the second receiving queue in the second connection queue QP2 in the receiving server 120 to 0 in response to the queue reset request, and after the reset is completed, sends reset completion information to the sending server 110 through UDP connection.
After receiving the reset completion information sent by the receiving server 120, the sending server 110 resets the local first connection queue QP1, resets both the queue number of the first sending connection of the first connection queue and the queue number of the first receiving queue to 0, and sets the first sending connection to a sending state, where the queue numbers of the first connection queue and the second connection queue are synchronized to a consistent value, so that normal data receiving and sending can be continued.
The present specification provides a data processing system including: a sending server and a receiving server; the sending server is configured to monitor the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel; the receiving server is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset; the sending server is further configured to receive reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; setting the first connection queue to a transmittable state when the reset of the queue number of the first connection queue is completed; by the system, under the scene that a network is in fault and a connection error occurs, the communication service between the first connection queue and the second connection queue is quickly recovered by resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel, so that a large number of connection disconnection and established kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after the fault are improved.
The present specification further provides a data processing method, where the method includes a sending server and a receiving server, referring to fig. 2, fig. 2 shows a processing flow chart of a data processing method provided in an embodiment of the present specification, and specifically includes the following steps:
step 202: the sending server side monitors the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; and sending a queue resetting request to the receiving server through an out-of-band channel.
Optionally, the sending server receives an expected queue sequence number sent by the receiving server; judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number; if so, determining that the network state is normal; if not, determining that the network state is abnormal.
Optionally, the sending server executes retransmission processing when the current queue number of the first connection queue is different from the expected queue number; and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
Optionally, the first connection queue comprises a first sending queue;
and the sending server judges whether the current queue sequence number of the first sending queue is the same as the expected queue sequence number.
Optionally, the sending server sets the first connection queue to a sending stop state through a sending network card.
Referring to fig. 3a, fig. 3a is a schematic diagram illustrating a communication state of an RMDA when a network is normal according to an embodiment of the present disclosure, where an application a is a sending server, an application B is a receiving server, a QP in the application a is a first connection queue, a sending PSN in the first connection queue is a first sending queue, and a receiving PSN is a first receiving queue; as shown in fig. 3a, if the transmission PSN of the application a is 1 and the reception PSN of the application B is 1, the same both indicate that the communication is normal.
Referring to fig. 3B, fig. 3B shows a schematic diagram of a communication state of the RMDA when a network fails according to an embodiment of the present disclosure, and as shown in fig. 3B, a transmission PSN of the application a is 3, and a reception PSN of the application B is 1, which indicates that a packet in the application a has been transmitted to the 3 rd, and a packet in the application B has not been received yet by the 1 st packet, so that a packet loss occurs in the packet transmitted by the application a, and at this time, the network fails.
Step 204: the receiving server receives a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; and sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset completely.
Optionally, the second connection queue includes a second sending queue and a second receiving queue;
and the receiving server side responds to the queue resetting request to reset the queue sequence number of the second sending queue and the queue sequence number of the second receiving queue.
Referring to fig. 3c, fig. 3c is a schematic diagram illustrating a communication state of the RMDA after recovery of a network failure according to an embodiment of the present disclosure, where as shown in fig. 3c, the application B resets both the sending PSN and the receiving PSN in the second connection queue to 0 in response to the queue reset request after receiving the queue reset request, and sends reset completion information to the sending server after the reset is completed.
Step 206: the sending server receives reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
Optionally, the first connection queue includes a first sending queue and a first receiving queue;
and the sending server resets the queue sequence number of the first sending queue and the queue sequence number of the first receiving queue according to the reset completion information.
Optionally, the sending server sets the first connection queue to a transmittable state through the sending network card.
As shown in fig. 3c, after receiving the reset completion information, the application a resets both the sending PSN and the receiving PSN in the first connection queue to 0 according to the reset completion information, and then changes the state of the first connection queue to a transmittable state, where both the sending PSN in the application a and the receiving PSN in the application B are reset to 0, so that normal data transmission and reception can be continued.
The data processing method provided by the specification comprises the following steps: a sending server and a receiving server; the sending server side monitors the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel; the receiving server receives a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset; the sending server receives reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; setting the first connection queue to a transmittable state when the reset of the queue number of the first connection queue is completed; by the method, under the scene that a network is in fault and a connection error occurs, the communication service between the first connection queue and the second connection queue is quickly recovered by resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel, a large number of connection disconnection and established kernel events generated in a cluster in a short time are avoided, invalid memory release, memory reallocation and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after the fault are improved.
The present specification further provides a data processing method applied to a sending server, and referring to fig. 4, fig. 4 shows a processing flow chart of the data processing method applied to the sending server provided in an embodiment of the present specification, and specifically includes the following steps:
step 402: and monitoring the network state, and setting the first connection queue to be in a sending stop state under the condition that the network state is abnormal.
Optionally, monitoring the network status includes:
receiving an expected queue sequence number sent by the receiving server;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number;
if so, determining that the network state is normal;
if not, determining that the network state is abnormal.
Optionally, the method further includes:
executing retransmission processing under the condition that the current queue serial number of the first connection queue is different from the expected queue serial number;
and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
Optionally, the first connection queue comprises a first sending queue;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number, including:
and judging whether the current queue sequence number of the first sending queue is the same as the expected queue sequence number.
Optionally, the setting the first connection queue to a transmission stop state includes:
and setting the first connection queue to be in a transmission stop state through the transmission network card.
Step 404: and sending a queue resetting request to a receiving server through an out-of-band channel.
Step 406: and receiving reset completion information which is sent by the receiving server and generated in response to the queue reset request.
Step 408: and resetting the queue sequence number of the first connection queue according to the reset completion information.
Optionally, the first connection queue includes a first sending queue and a first receiving queue;
resetting the queue number of the first connection queue according to the reset completion information, comprising:
and resetting the queue sequence number of the first sending queue and the queue sequence number of the first receiving queue according to the reset completion information.
Step 410: and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
Optionally, the setting the first connection queue to a transmittable state includes:
and setting the first connection queue to be in a transmittable state through the transmission network card.
The data processing method applied to the sending server side monitors the network state, and sets the first connection queue to be in a sending stop state under the condition that the network state is abnormal; sending a queue resetting request to a receiving server through an out-of-band channel; receiving reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; according to the method, under the scene that a network is in failure and connection errors occur, the communication service between the first connection queue and the second connection queue is rapidly recovered by resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel, a large number of connection disconnection and established kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after failure are improved.
Corresponding to the above-mentioned data processing method applied to the sending server, this specification further provides an embodiment of a data processing apparatus applied to the sending server, and fig. 5 shows a schematic structural diagram of the data processing apparatus applied to the sending server provided in an embodiment of this specification. As shown in fig. 5, the apparatus includes:
a monitoring module 502, configured to monitor a network state, and set the first connection queue to a transmission stop state when the network state is abnormal;
a sending module 504 configured to send a queue reset request to the receiving server through the out-of-band channel;
a receiving module 506 configured to receive reset completion information sent by the receiving server and generated in response to the queue reset request;
a reset module 508 configured to reset a queue number of the first connection queue according to the reset completion information;
a setting module 510 configured to set the first connection queue to a transmittable state if a queue number reset of the first connection queue is completed.
Optionally, the monitoring module 502 is further configured to:
receiving an expected queue sequence number sent by the receiving server;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number;
if so, determining that the network state is normal;
if not, determining that the network state is abnormal.
Optionally, the monitoring module 502 is further configured to:
executing retransmission processing under the condition that the current queue serial number of the first connection queue is different from the expected queue serial number;
and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
Optionally, the first connection queue comprises a first sending queue;
the monitoring module 502 is further configured to determine whether the current queue number of the first sending queue is the same as the expected queue number.
Optionally, the first connection queue includes a first sending queue and a first receiving queue;
the reset module 508 is further configured to reset the queue number of the first transmit queue and the queue number of the first receive queue according to the reset completion information.
Optionally, the monitoring module 502 is configured to set the first connection queue to a transmission stop state through the transmission network card.
Optionally, the setting module 510 is further configured to set the first connection queue to a transmittable state through the sending network card.
The data processing device applied to the sending server side monitors the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to a receiving server through an out-of-band channel; receiving reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; the device is used for resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel to quickly recover the communication service between the first connection queue and the second connection queue under the scene that the network fails and connection errors occur, so that a large number of connection disconnection and established kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after the failure are improved.
The foregoing is a schematic diagram of a data processing apparatus applied to a sending server in this embodiment. It should be noted that the technical solution applied to the data processing apparatus of the sending server belongs to the same concept as the technical solution applied to the data processing method of the sending server, and details of the technical solution applied to the data processing apparatus of the sending server, which are not described in detail, can be referred to the description of the technical solution applied to the data processing method of the sending server.
The present specification further provides a data processing method applied to a receiving server, and referring to fig. 6, fig. 6 shows a processing flow chart of the data processing method applied to the receiving server provided in an embodiment of the present specification, and specifically includes the following steps:
step 602: and receiving a queue resetting request sent by a sending server.
Step 604: the queue number of the second connection queue is reset in response to the queue reset request.
Optionally, the second connection queue includes a second sending queue and a second receiving queue;
resetting a queue number of a second connection queue in response to the queue reset request, comprising:
resetting the queue number of the second transmit queue and the queue number of the second receive queue in response to the queue reset request.
Step 606: and sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset completely.
The data processing method applied to the receiving server side receives a queue resetting request sent by the sending server side; resetting a queue number of a second connection queue in response to the queue reset request; according to the method, under the scene that a network is in failure and connection errors occur, the communication service between the first connection queue and the second connection queue is quickly recovered by resetting the queue serial numbers between the first connection queue and the second connection queue through the out-of-band channel, a large number of disconnection and built kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after failure are improved.
Corresponding to the above-mentioned data processing method applied to the receiving server, this specification further provides an embodiment of a data processing apparatus applied to the receiving server, and fig. 7 shows a schematic structural diagram of the data processing apparatus applied to the receiving server provided in an embodiment of this specification. As shown in fig. 7, the apparatus includes:
a receiving module 702 configured to receive a queue reset request sent by a sending server;
a reset module 704 configured to reset a queue number of a second connection queue in response to the queue reset request;
a sending module 706, configured to send reset completion information to the sending server through an out-of-band channel when the queue sequence number of the second connection queue is completely reset.
Optionally, the second connection queue includes a second sending queue and a second receiving queue;
the reset module 704 is further configured to reset the queue number of the second transmit queue and the queue number of the second receive queue in response to the queue reset request.
The data processing device applied to the receiving server side receives a queue resetting request sent by the sending server side; resetting a queue number of a second connection queue in response to the queue reset request; the device can be used for rapidly recovering the communication service between the first connection queue and the second connection queue by resetting the queue serial number between the first connection queue and the second connection queue through the out-of-band channel under the scene that the network fails and connection errors occur, so that a large number of disconnection and built kernel events generated in a cluster in a short time are avoided, invalid memory release, memory redistribution and cache refreshing processes are avoided, and the stability of the cluster and the speed of connection reconstruction after the failure are improved.
The foregoing is an illustrative scheme of the data processing apparatus applied to the receiving server in this embodiment. It should be noted that the technical solution applied to the data processing apparatus of the receiving server belongs to the same concept as the technical solution applied to the data processing method of the receiving server, and details of the technical solution applied to the data processing apparatus of the receiving server, which are not described in detail, can be referred to the description of the technical solution applied to the data processing method of the receiving server.
Fig. 8 illustrates a block diagram of a computing device 800 provided in accordance with an embodiment of the present description. The components of the computing device 800 include, but are not limited to, memory 810 and a processor 820. The processor 820 is coupled to the memory 810 via a bus 830, and the database 850 is used to store data.
Computing device 800 also includes access device 840, access device 840 enabling computing device 800 to communicate via one or more networks 860. Examples of such networks include the Public Switched Telephone Network (PSTN), a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or a combination of communication networks such as the internet. Access device 840 may include one or more of any type of network interface (e.g., a Network Interface Card (NIC)) whether wired or wireless, such as an IEEE802.11 Wireless Local Area Network (WLAN) wireless interface, a worldwide interoperability for microwave access (Wi-MAX) interface, an ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a bluetooth interface, a Near Field Communication (NFC) interface, and so forth.
In one embodiment of the present description, the above-described components of computing device 800, as well as other components not shown in FIG. 8, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device architecture shown in FIG. 8 is for purposes of example only and is not limiting as to the scope of the description. Those skilled in the art may add or replace other components as desired.
Computing device 800 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), a mobile phone (e.g., smartphone), a wearable computing device (e.g., smartwatch, smartglasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or PC. Computing device 800 may also be a mobile or stationary server.
When the processor 820 executes the instructions, the steps of the data processing method applied to the sending server or the data processing method applied to the receiving server are implemented.
The above is an illustrative scheme of a computing device of the present embodiment. It should be noted that the technical solution of the computing device is the same as the technical solution of the data processing method applied to the sending server or the data processing method applied to the receiving server, and details of the technical solution of the computing device, which are not described in detail, can be referred to the description of the technical solution of the data processing method applied to the sending server or the data processing method applied to the receiving server.
An embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions, and when the instructions are executed by a processor, the instructions implement the steps of the data processing method applied to the sending server or the data processing method applied to the receiving server as described above.
The above is an illustrative scheme of a computer-readable storage medium of the present embodiment. It should be noted that the technical solution of the storage medium belongs to the same concept as the technical solution of the data processing method applied to the sending server or the data processing method applied to the receiving server, and details of the technical solution of the storage medium, which are not described in detail, can be referred to the description of the technical solution of the data processing method applied to the sending server or the data processing method applied to the receiving server.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The computer instructions comprise computer program code which may be in the form of source code, object code, an executable file or some intermediate form, or the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
It should be noted that, for the sake of simplicity, the foregoing method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present disclosure is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present disclosure. Further, those skilled in the art should also appreciate that the embodiments described in this specification are preferred embodiments and that acts and modules referred to are not necessarily required for this description.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The preferred embodiments of the present specification disclosed above are intended only to aid in the description of the specification. Alternative embodiments are not exhaustive and do not limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the specification and its practical application, to thereby enable others skilled in the art to best understand the specification and its practical application. The specification is limited only by the claims and their full scope and equivalents.
Claims (15)
1. A data processing system comprising:
a sending server and a receiving server;
the sending server is configured to monitor the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel;
the receiving server is configured to receive a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset;
the sending server is further configured to receive reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
2. The data processing system of claim 1, the sending server further configured to:
receiving an expected queue sequence number sent by the receiving server;
judging whether the current queue sequence number of the first connection queue is the same as the expected queue sequence number;
if so, determining that the network state is normal;
if not, determining that the network state is abnormal.
3. The data processing system of claim 2, the sending server further configured to:
executing retransmission processing under the condition that the current queue serial number of the first connection queue is different from the expected queue serial number;
and if the retransmission times exceed a preset threshold value in a preset time interval, determining that the network state is abnormal.
4. The data processing system of claim 2, the first connection queue comprising a first send queue;
the sending server is further configured to determine whether the current queue number of the first sending queue is the same as the expected queue number.
5. The data processing system of claim 1, the first connection queue comprising a first transmit queue and a first receive queue;
the sending server is further configured to reset the queue number of the first sending queue and the queue number of the first receiving queue according to the reset completion information.
6. The data processing system of any of claims 1-5, the send server further configured to set the first connection queue to a stop-sending state via the send network card.
7. The data processing system of claim 6, the sending server further configured to set the first connection queue to a transmittable state via the sending network card.
8. The data processing system of claim 1, the second connection queue comprising a second send queue and a second receive queue;
the receiving server is further configured to reset the queue number of the second sending queue and the queue number of the second receiving queue in response to the queue reset request.
9. A method of data processing, comprising:
a sending server and a receiving server;
the sending server side monitors the network state; under the condition that the network state is abnormal, setting a first connection queue to be in a sending stop state; sending a queue resetting request to the receiving server through an out-of-band channel;
the receiving server receives a queue resetting request sent by the sending server; resetting a queue number of a second connection queue in response to the queue reset request; sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset;
the sending server receives reset completion information which is sent by the receiving server and generated in response to the queue reset request; resetting the queue sequence number of the first connection queue according to the reset completion information; and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
10. A data processing method is applied to a sending server and comprises the following steps:
monitoring a network state, and setting a first connection queue to be in a sending stop state under the condition that the network state is abnormal;
sending a queue resetting request to a receiving server through an out-of-band channel;
receiving reset completion information which is sent by the receiving server and generated in response to the queue reset request;
resetting the queue sequence number of the first connection queue according to the reset completion information;
and setting the first connection queue to a transmittable state when the reset of the queue sequence number of the first connection queue is completed.
11. A data processing method is applied to a receiving server and comprises the following steps:
receiving a queue resetting request sent by a sending server;
resetting a queue number of a second connection queue in response to the queue reset request;
and sending reset completion information to the sending server through an out-of-band channel under the condition that the queue serial number of the second connection queue is reset completely.
12. A data processing device is applied to a sending server and comprises:
the monitoring module monitors a network state and sets the first connection queue to be in a sending stop state under the condition that the network state is abnormal;
the sending module is configured to send a queue resetting request to the receiving server through an out-of-band channel;
a receiving module configured to receive reset completion information sent by the receiving server and generated in response to the queue reset request;
a reset module configured to reset a queue number of the first connection queue according to the reset completion information;
a setting module configured to set the first connection queue to a transmittable state if a queue number reset of the first connection queue is completed.
13. A data processing device is applied to a receiving server and comprises:
the receiving module is configured to receive a queue resetting request sent by a sending server;
a reset module configured to reset a queue number of a second connection queue in response to the queue reset request;
and the sending module is configured to send reset completion information to the sending server through an out-of-band channel under the condition that the queue sequence number of the second connection queue is reset completely.
14. A computing device comprising a memory, a processor and computer instructions stored on the memory and executable on the processor, the processor implementing the steps of the method of any one of claims 10 or 11 when executing the instructions.
15. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the method of any one of claims 10 or 11.
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