CN111352642A - Service equipment and service software upgrading method - Google Patents
Service equipment and service software upgrading method Download PDFInfo
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- CN111352642A CN111352642A CN202010123263.7A CN202010123263A CN111352642A CN 111352642 A CN111352642 A CN 111352642A CN 202010123263 A CN202010123263 A CN 202010123263A CN 111352642 A CN111352642 A CN 111352642A
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Abstract
The application provides a method for upgrading service software, which comprises the following steps: starting a new version software process and keeping the operation of an old version software process; after receiving a data packet, judging whether the data packet is newly initiated flow according to a connection identification value of the data packet; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved; distributing the data package to the new version software process or the old version software process based on the connection identification value of the data package. The invention also provides a server and a computer readable storage medium. The service equipment and the method for upgrading the service software can improve user experience.
Description
Technical Field
The present invention relates to the field of network technologies, and in particular, to a service device and a method for upgrading service software.
Background
As internet users have higher and higher requirements for network quality, service providers generally need to upgrade their service software in order to provide users with more sophisticated, more stable, and faster network services. However, in the process of upgrading based on the existing upgrading mode of service software, the problem of service interruption or instability is easy to occur, so that the experience brought to users is poor. Especially, if an exception occurs during the upgrade process, the user needs to return to the original version, which further reduces the user experience.
In view of the above problems in the prior art, there is a need to provide a service software upgrade method that does not affect the user experience.
Disclosure of Invention
The application aims to provide a service device and a service software upgrading method, and the influence on user experience in the software upgrading process is reduced by ensuring that the service flow is not interrupted.
To achieve the above object, an aspect of the present application provides a method for upgrading service software, including:
starting a new version software process and keeping the operation of an old version software process;
after receiving a data packet, judging whether the data packet is newly initiated flow according to a connection identification value of the data packet; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved;
distributing the data package to the new version software process or the old version software process based on the connection identification value of the data package.
In order to achieve the above object, another aspect of the present application further provides a service apparatus, including:
the process module is used for starting the new version software process and keeping the operation of the old version software process;
the identification module is used for judging whether the flow is newly initiated according to the connection identification value of the data packet after the data packet is received; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved; and is used for judging whether the connection identification value carried by the data packet is changed;
and the forwarding module is used for distributing the data packet to the new version software process or the old version software process based on the connection identification value of the data packet.
To achieve the above object, another aspect of the present application further provides a server including a processor and a memory, where at least one instruction, at least one program, a set of codes, or a set of instructions is stored in the memory, and the at least one instruction, the at least one program, the set of codes, or the set of instructions is loaded and executed by the processor to achieve the above method.
To achieve the above object, another aspect of the present application further provides a computer-readable storage medium storing at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the above method.
Therefore, in the technical scheme provided by the application, in the software upgrading process, by realizing the parallel switching of the new version software process and the old version software process, the old version software process can continue to serve the existing flow, and the new version software process can start to serve the newly initiated flow; the method avoids the existing upgrading mode of service software, is easy to cause service interruption or instability, and can not return to the original version due to abnormity in the upgrading process, thereby improving the user experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a service software upgrading method according to the present application.
FIG. 2 is a functional block diagram of a service device according to the present application;
FIG. 3 is a schematic diagram of a server according to the present application;
fig. 4 is a schematic structural diagram of a computer terminal according to the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The service software upgrading method provided by the application can be applied to service equipment provided with service software with upgrading requirements, such as a source station server, a proxy server, or user terminal equipment such as a mobile phone, a tablet computer and a set-top box, so as to realize smooth upgrading without interrupting the existing flow or service, thereby improving user experience, and the following description will be given with reference to the accompanying drawings.
Referring to fig. 1, the present application provides a service software upgrading method, which specifically includes the following steps:
and step S101, starting the new version software process and keeping the old version software process running.
In an alternative embodiment, both the new version software process and the old version software process are launched and run in user space. Generally, the process names of the same software may be the same, and in order to distinguish a new version of a software process from an old version of the software process, the old version of the software process is also notified to modify the process names before the new version of the software process is started. For example, the name of the old version software process may be modified from abc to abc _ old to distinguish it from the name of the new version software process by signaling the old version software process with a KILL command.
In an optional embodiment, after the new version software process is started in the user space, the connection access function of the TCP of the old version software process may be further closed, and the transceiving function of the UDP protocol data continues to be maintained, for example, the TCP listening socket of the old version software process may be closed, after the TCP listening socket is closed, the old version software process will not access the new TCP connection any more, and all of the new version software process will be processed by the new version software process.
Because UDP is oriented to connectionless transmission, and a complete user request usually consists of a plurality of UDP data packets, after a new version software process is started, the UDP transceiving function of an old version software process cannot be directly closed, otherwise, each UDP packet belonging to the same user request may be interrupted in transmission, so that the old version software process cannot receive the complete user request, cannot respond to the user request, and affects user experience.
Furthermore, since the UDP transceiving functions of the new and old version software processes are all in an open state, different binding addresses need to be set to implement independent transceiving of UDP packets. Specifically, the IP address and port to which the two are bound may be completely different; or the IP addresses bound by the two are the same, but the ports are different; or the two bound IP addresses may be different, but the ports are the same. Therefore, after receiving the data packet, the kernel space can send the data packet to the corresponding software process according to the IP address and the port bound by the new process and the old process. For example, the IP address bound by the old version of the software process may be 192.168.255.100, and the IP address bound by the new version of the software process may be 192.168.255.101, where both may bind the same port.
It is noted that embodiments of the present invention are not only applicable to TCP and UDP traffic, but also to other traffic via connection-oriented or connectionless transport layer protocols.
In step S102, a data packet is received.
Step S103, judging whether the flow is newly initiated according to the connection identification value of the data packet; if the flow is newly initiated, step S104 is entered, and the connection identification value of the data packet is changed; otherwise, step S105 is performed, and the connection identifier value of the data packet is retained.
In an optional embodiment, the service device receives the data packet through the local network card and transmits the data packet to a protocol stack of a kernel space for analysis, and the kernel space can determine a transmission connection to which the data packet belongs based on a connection record stored in the system, and sends the data packet to a destination address through the transmission connection, so that the data packet can be monitored by a corresponding process, and meanwhile, a corresponding connection identification value is set for the data packet.
Specifically, the kernel space may record all data transmissions of the system, and the data transmission records may include quadruple information carried in a data packet and corresponding transmission connections, and may set different connection identification values for distinguishing. In the process of analyzing the data packet by the kernel space, the corresponding transmission connection can be determined based on the matching of the four-tuple information, and the data packet is marked based on the connection identification value. It is noted that the transport connection here is different from the connection concept in the transport layer protocol, for example, UDP is a connectionless-oriented transport layer protocol, but data packets transmitted based on the UDP protocol also have corresponding transmission behavior, and the behavior characteristic can be understood as a transport connection.
Generally speaking, for a newly initiated transmission connection, since the transmission connection to which the newly initiated transmission connection belongs cannot be determined through the matching record, the kernel space sets the connection identifier value of the packet belonging to the transmission connection as a default value, and for the packet matched to the transmission connection, the kernel space sets the connection identifier value of the packet as a corresponding value, so that the newly initiated traffic can be guided to the new version software process by changing the default value to the connection identifier value corresponding to the transmission connection pointing to the new version software process.
For example, "0" may be used as the default connection identification value, "1" may be used as the connection identification value of the transport connection pointing to the new version software process, and "2" may be used as the connection identification value of the transport connection pointing to the old version software process. When the connection identification value carried by the data packet is '0', which indicates that the data packet does not belong to any existing transmission connection and belongs to newly initiated traffic, for example, a new user request, the connection identification value can be modified to a value corresponding to the transmission connection pointing to the new version software process, so that the data packet is finally received by the new version software process; when the connection identification value carried by the data packet is '1', the data packet is indicated to belong to the transmission connection pointing to the new version software process; when the connection id value carried by the packet is "2", it indicates that the packet belongs to a transmission connection directed to an old version of the software process.
In an alternative embodiment, the connection identification value of the received data packet may be matched and modified by the connmark module of iptables.
The following is a command that step S103 and step S104 can be selected:
iptables-t mangle-a prerouting-p udp-m connmark--mark 0-j connmark--set-mark 1
after the command is executed, it can be determined whether the connection identifier value of the packet is "0", and if the connection identifier value is "0", the connection identifier value is changed to "1".
And step S106, distributing the data packet to the new version software process or the old version software process based on the connection identification value.
In an optional embodiment, a specific process of distributing the data packet carrying the connection identifier value to the new version software process or the old version software process is as follows:
firstly, a set routing identification value, a destination port and an IP address corresponding to the connection identification value are set through matching the connection identification value of the data packet.
In this embodiment, a routing identifier value, a binding port corresponding to a process, and an IP address may be set for a data packet carrying a connection identifier value through a tproxy module of an iptables.
The following are optional commands:
iptables-t mangle-a prerouting-p udp-m connmark--mark 1-j tproxy--on-port 8081--on-ip 192.168.255.101--tproxy-mark 0x15
iptables-t mangle-a prerouting-p udp-m connmark--mark 2-j tproxy--on-port 8081--on-ip 192.168.255.100--tproxy-mark 0x15
"8081" and "192.168.255.101" in the above commands are the port and IP address bound by the new version software process; "8081" and "192.168.255.100" are the ports and IP addresses bound for the old version of the software process; "0 x 15" is the route identification value, and "1" and "2" are the matching connection identification values. The two commands can respectively realize that the data packet with the connection identification value of 1 is sent to the new version software process, and the data packet with the connection identification value of 2 is sent to the old version software process.
And secondly, sending the data packet to a corresponding process according to the routing identification value, the destination port and the IP address.
In this embodiment, the protocol stack of the kernel may query the routing table according to the routing identifier value to obtain a routing policy of the data packet, and then send the data packet to a corresponding process according to the routing policy, the port, and the IP address;
the following is an optional command:
ip rule add fwmark 0x15 lookup 100
ip route add local default dev lo table 100
in the above commands, "100" is the code of the routing table, the first row of commands means that the routing policy of the packet with the routing identification value of "0 x 15" can be found in the routing table 100, and the second row of commands means that the routing policy in the routing table 100 is that all packets are routed to the local loop address (local). Therefore, the data packet can be sent to the local loopback address and then sent according to the IP address and the port in the command, so that the data packet can be received by the corresponding process.
Of course, the commands and the related parameters may be modified according to actual needs, and the present invention is not limited thereto.
By the method, the service being processed in the old version software is not interrupted in the updating process of the new version software, and the user experience is improved.
In an alternative embodiment, when the number of received data packets of the process of the old version of software is reduced to a predetermined value, or after waiting for a predetermined time, the process of the old version of software is exited, so that the switching between the new version and the old version is completed.
In an optional embodiment, before the new version software process is started, the installation and configuration of the old version software can be backed up, and when the new version software process is started abnormally, the old version software process is notified to restore the installation and configuration of the backup old version software, and the upgrading of the new version software is quitted.
In an optional embodiment, before starting the new version software process, an installation step of the new version software may be included, where an installation package of the new version software may include a main body of the new version software and a script file for implementing the method, and when the new version software is installed, the method may be implemented by running the script file.
Referring to fig. 2, the present application further provides a service device, including:
the process module is used for starting the new version software process and keeping the operation of the old version software process;
the identification module is used for judging whether the flow is newly initiated according to the connection identification value of the data packet after the data packet is received; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved;
and the forwarding module is used for distributing the data packet to the new version software process or the old version software process based on the connection identification value.
In an alternative embodiment, the process module is further configured to modify a name of the old version software process prior to launching the new version software process.
In an optional embodiment, the process module is further configured to close a TCP connection access function of the old version software process when the new version software process is started.
In an optional embodiment, the process module is further configured to, after the data packet received by the process of the old version software is reduced to a predetermined value, or after a predetermined time period, quit the running of the process of the old version software.
In an optional embodiment, the identification module determines whether the traffic is newly initiated according to the connection identification value of the data packet; if the flow is newly initiated, the step of changing the connection identification value specifically comprises the following steps:
and judging whether the connection identification value of the data packet is a default value, if so, determining the connection identification value as a newly initiated flow, and changing the connection identification value to a connection identification value corresponding to the transmission connection pointing to the new version software process.
In an optional embodiment, the forwarding module is further configured to:
setting a corresponding routing identification value, a port and an IP address by matching the connection identification value of the data packet; wherein the port and the IP address are the port and the IP address of the new version software process or the port and the IP address of the old version software process; and sending the data packet to the new version software process or the old version software process according to the routing identification value, the port and the IP address.
In an optional embodiment, the service device further includes an installation control module, configured to quit the operation of the old version software process when the number of received data packets of the old version software process decreases to a predetermined value or waits for a predetermined time period, so as to complete the switching between the new version and the old version. Notably, software is not allowed to be upgraded again until the old version software process exits.
In an optional embodiment, the installation control module is further configured to backup installation and configuration of the old version software before starting the new version software process, and notify the old version software process to restore installation and configuration of the backup old version software and push out an upgrade of the new version software when the new version software process is abnormally started.
In an alternative embodiment, the installation control module is further configured to install the new version software before starting the new version software process.
The present application also provides a computer-readable storage medium, in which at least one instruction, at least one program, a set of codes, or a set of instructions is stored, and the at least one instruction, the at least one program, the set of codes, or the set of instructions is loaded and executed by a processor to implement the service software upgrade method.
Fig. 3 is a schematic structural diagram of a server according to the present application. The server comprises a processor and a memory, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to realize the service software upgrading method.
Fig. 4 is a schematic structural diagram of a computer terminal in an embodiment of the present invention. In the present application, the technical solutions in the above embodiments can be applied to the computer terminal 10 shown in fig. 4. The computer terminal 10 may include one or more (only one shown) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication functions. It will be understood by those skilled in the art that the structure shown in fig. 4 is only an illustration and is not intended to limit the structure of the electronic device. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 4, or have a different configuration than shown in FIG. 4.
In particular, in the present application, the service software upgrade method may be stored in the memory 104 as a computer program, and the memory 104 may be coupled to the processor 102, so that when the processor 102 executes the computer program in the memory 104, the steps of the service software upgrade method may be implemented.
The memory 104 may be used to store software programs and modules of application software, and the processor 102 executes various functional applications and data processing by executing the software programs and modules stored in the memory 104. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
Therefore, the technical scheme provided by the application can enable the old version software process to continue to serve the existing flow and enable the new version software process to start to serve the newly initiated flow; the method avoids the existing upgrading mode of service software, is easy to cause service interruption or instability, and can not return to the original version due to abnormity in the upgrading process, thereby improving the user experience.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, both the system and the server embodiments can be explained with reference to the introduction of the embodiments of the method described above.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (15)
1. A method of servicing a software upgrade, comprising:
starting a new version software process and keeping the operation of an old version software process;
after receiving a data packet, judging whether the data packet is newly initiated flow according to a connection identification value of the data packet; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved;
distributing the data package to the new version software process or the old version software process based on the connection identification value of the data package.
2. The method of claim 1, further comprising the step of modifying a name of the old version software process prior to launching the new version software process.
3. The method of claim 1, further comprising the step of shutting down TCP connection access functionality of the old version software process after the new version software process is started.
4. The method of claim 1, further comprising the step of stopping the execution of the process of the old version of software when the data packets received by the process of the old version of software decrease to a predetermined value or wait for a predetermined length of time.
5. The method of claim 1, wherein the determining whether the traffic is newly initiated is performed according to a connection identifier value of the data packet; if the traffic is newly initiated, the step of changing the connection identifier value specifically includes:
and if the connection identification value of the data packet is a default value, determining the connection identification value as a newly initiated flow, and changing the connection identification value into a connection identification value corresponding to the transmission connection pointing to the new version software process.
6. The method of claim 1, wherein the step of distributing the data package to the new version software process or the old version software process based on the connection identification value of the data package specifically comprises:
setting a corresponding routing identification value, a port and an IP address by matching the connection identification value of the data packet; wherein the port and the IP address are the port and the IP address of the new version software process or the port and the IP address of the old version software process;
and sending the data packet to the new version software process or the old version software process according to the routing identification value, the port and the IP address.
7. The method according to claim 1, wherein the step of sending the data packet carrying the unmodified connection identification value to the process of the old version of software specifically comprises:
setting a routing identification value, a port and an IP address bound by the old version software process for a data packet carrying an unmodified connection identification value;
and sending the data packet carrying the unmodified connection identification value to the old version software process according to the routing identification value, the port and the IP address bound by the old version software process.
8. A service device, wherein the server comprises:
the process module is used for starting the new version software process and keeping the operation of the old version software process;
the identification module is used for judging whether the flow is newly initiated according to the connection identification value of the data packet after the data packet is received; if the flow is newly initiated, changing the connection identification value; if the flow is not newly initiated, the connection identification value is reserved; and is used for judging whether the connection identification value carried by the data packet is changed;
and the forwarding module is used for distributing the data packet to the new version software process or the old version software process based on the connection identification value of the data packet.
9. The service device of claim 8, wherein the process module is further to modify a name of the old version software process prior to launching the new version software process.
10. The service device of claim 8, wherein the process module is further to close a TCP connection access function of the old version software process after the new version software process is started.
11. The service device of claim 8, wherein the process module is further configured to stop the process of the old version of software after the data packet received by the process of the old version of software decreases to a predetermined value or waits for a predetermined length of time.
12. The service device of claim 8, wherein the identification module is determining whether the traffic is newly initiated according to a connection identification value of the data packet; if the flow is newly initiated, the step of changing the connection identification value specifically comprises the following steps:
and if the connection identification value of the data packet is a default value, determining the connection identification value as a newly initiated flow, and changing the connection identification value into a connection identification value corresponding to the transmission connection pointing to the new version software process.
13. The service device of claim 8, wherein the forwarding module is further to:
setting a corresponding routing identification value, a port and an IP address by matching the connection identification value of the data packet; wherein the port and the IP address are the port and the IP address of the new version software process or the port and the IP address of the old version software process;
and sending the data packet to the new version software process or the old version software process according to the routing identification value, the port and the IP address.
14. A server, characterized in that it comprises a processor and a memory in which at least one instruction, at least one program, set of codes or set of instructions is stored, which is loaded and executed by the processor to implement a method of serving software upgrade as claimed in any one of claims 1 to 7.
15. A computer readable storage medium having stored therein at least one instruction, at least one program, a set of codes, or a set of instructions, which is loaded and executed by a processor to implement the method of service software upgrade as claimed in any one of claims 1 to 7.
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| CN111352642B (en) | 2023-08-18 |
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