CN114422434A - Hot key storage method and device - Google Patents
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Abstract
The invention provides a hot key storage method and device, and relates to the technical field of hot key storage. The method is applied to a server and comprises the following steps: when a hot key storage request of a client is received, performing hash calculation on the read hot key to obtain a hash value of the hot key; utilizing the hash value to perform modulo on the route, and determining a target route corresponding to the hot key; and determining an optimal cache memory storage hot key in the cache cluster by using the target route. According to the hot key storage method and device provided by the embodiment of the invention, the routing layer is added between the server side and the cache memory, the target route corresponding to the hot key in the routing layer selects the optimal cache memory to store the hot key according to the state of the cache memory, namely, one hot key finally corresponds to one cache memory and is stored in the cache memory, and the technical effects that the complexity of a system is lowered, and the optimal cache memory can be selected to store the hot key are achieved.
Description
Technical Field
The invention relates to the technical field of hotkey storage, in particular to a hotkey storage method and a hotkey storage device.
Background
In the internet system, a hot key (key) refers to a fixed key that requests for traffic to access the cache memory in hundreds of thousands of moments, which causes traffic to be too concentrated and too large, so that the traffic may reach the upper limit of the network card of the cache memory, thereby causing the cache memory to be down.
The current method for solving the above problem is to generate a plurality of new keys according to the hotkey, store the new keys in different cache memories, and when the hotkey request arrives, hash the new keys and modulo the number of the cache memories, thereby selecting one cache memory among the plurality of cache memories to store the hotkey. However, the above method has the following problems: the cache memory needs to maintain a plurality of new keys generated according to the hot keys, and the intrusiveness of the plurality of new keys to the system becomes high, which also increases the complexity of the system; the state of the cache memory service storing the hot key is unknown.
Therefore, there is a need for an improved method to improve the above problems.
Disclosure of Invention
In view of the above, the present invention provides a hot key storage method and apparatus to improve the above technical problems.
In a first aspect, an embodiment of the present invention provides a hotkey storage method, where the hotkey storage method is applied to a server, and the method includes:
when a hot key storage request of a client is received, performing hash calculation on the read hot key to obtain a hash value of the hot key;
utilizing the hash value to perform modulo operation on the route, and determining a target route corresponding to the hot key;
and determining the optimal cache memory in the cache cluster to store the hot key by using the target route.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the modulo of the route by using the hash value to determine the target route corresponding to the hot key includes:
and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the determining, by using the target route, that an optimal cache memory in a cache cluster stores the hot key includes:
determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table;
and determining the optimal cache memory in the cache memory blocks to store the hot keys by utilizing the target route.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the method further includes:
performing routing calculation on variables of each cache memory in the cache memory blocks by using the route, and determining the optimal cache memory to store the hot key; the variables comprise the failure rate of the cache memory, the average cache consumption time, the cache flow, the memory utilization rate, the CPU utilization rate and the IO utilization rate.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the number of cache memories in each cache memory block is the same.
In a second aspect, an embodiment of the present invention further provides a hotkey storage device, where the hotkey storage device is applied to a server, and the hotkey storage device includes:
the hash calculation module is used for performing hash calculation on the read hot key when a hot key storage request of the client is received to obtain a hash value of the hot key;
the route determining module is used for performing modulo operation on the route by utilizing the hash value and determining a target route corresponding to the hot key;
and the hot key storage module is used for determining the optimal cache memory in the cache cluster to store the hot key by utilizing the target route.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the route determining module is configured to:
and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the hotkey storage module is configured to:
determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table;
and determining the optimal cache memory in the cache memory blocks to store the hot keys by utilizing the target route.
With reference to the second aspect, an embodiment of the present invention provides a third possible implementation manner of the second aspect, where the hotkey storage module is further configured to:
performing routing calculation on variables of each cache memory in the cache memory blocks by using the route, and determining the optimal cache memory to store the hot key; the variables comprise the failure rate of the cache memory, the average cache consumption time, the cache flow, the memory utilization rate, the CPU utilization rate and the IO utilization rate.
In a third aspect, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions that, when invoked and executed by a processor, cause the processor to implement the method described above.
The embodiment of the invention has the following beneficial effects: according to the hot key storage method and device provided by the embodiment of the invention, when a hot key storage request of a client is received, the read hot key is subjected to Hash calculation to obtain a Hash value of the hot key, then, a module is taken for a route by using the Hash value to determine a target route corresponding to the hot key, and finally, the optimal cache memory in a cache cluster is determined by using the target route to store the hot key. According to the hot key storage method and device provided by the embodiment of the invention, the routing layer is added between the server side and the cache memory, the target route corresponding to the hot key in the routing layer selects the optimal cache memory to store the hot key according to the state of the cache memory, namely, one hot key finally corresponds to one cache memory and is stored in the cache memory, and the technical effects that the complexity of a system is lowered, and the optimal cache memory can be selected to store the hot key are achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a hotkey storage method according to an embodiment of the present invention;
FIG. 2 is a flowchart of another hot key storage method according to an embodiment of the present invention;
FIG. 3 is a block diagram of a hotkey storage device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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.
In the internet system, a hotkey refers to a fixed key which instantly requests hundreds of thousands of traffic to access the cache memory, which causes the traffic to be too concentrated and too large, so that the traffic may reach the upper limit of the network card of the cache memory, thereby causing the cache memory to be down. The current method for solving the above problem is to generate a plurality of new keys according to the hotkey, store the new keys in different cache memories, and when the hotkey request arrives, hash the new keys and modulo the number of the cache memories, thereby selecting one cache memory among the plurality of cache memories to store the hotkey. However, the above method has the following problems: the cache memory needs to maintain a plurality of new keys generated according to the hot keys, and the intrusiveness of the plurality of new keys to the system becomes high, which also increases the complexity of the system; the state of the cache memory service storing the hot key is unknown. Accordingly, embodiments of the present invention provide a hot key storage method and apparatus to alleviate the above problems.
In order to facilitate understanding of the embodiment, a hot key storage method disclosed in the embodiment of the present invention is first described in detail.
In a possible implementation manner, the present invention provides a hotkey storage method, which is applied to a server, and as shown in fig. 1, is a flowchart of a hotkey storage method provided in an embodiment of the present invention, and the method includes the following steps:
step S102: and when a hot key storage request of the client is received, performing hash calculation on the read hot key to obtain a hash value of the hot key.
Alternatively, a hotkey refers to an event that has hundreds or thousands of requested traffic at a moment.
Step S104: and performing modulo on the route by utilizing the hash value to determine the target route corresponding to the hot key.
Optionally, the destination route is a route in a routing layer added between the server and the cache memory, and a hot key request is sent to a destination route.
Step S106: and determining the optimal cache memory in the cache cluster to store the hot key by using the target route.
Optionally, one target route corresponds to multiple cache memories in the cache cluster, and the optimal cache memory is determined by using the target route.
In summary, in the hot key storage method according to the embodiment of the present invention, when a hot key storage request of a client is received, hash calculation is performed on a read hot key to obtain a hash value of the hot key, then a module is performed on a route by using the hash value to determine a target route corresponding to the hot key, and finally an optimal cache memory in a cache cluster is determined by using the target route to store the hot key. According to the hot key storage method and device provided by the embodiment of the invention, the routing layer is added between the server side and the cache memory, the target route corresponding to the hot key in the routing layer selects the optimal cache memory to store the hot key according to the state of the cache memory, namely, one hot key finally corresponds to one cache memory and is stored in the cache memory, and the technical effects that the complexity of a system is lowered, and the optimal cache memory can be selected to store the hot key are achieved.
For more detailed explanation of the above process, an embodiment of the present invention shows a flowchart of another hot key storage method provided by an embodiment of the present invention in fig. 2, where the method includes the following steps:
step S202: and when a hot key storage request of the client is received, performing hash calculation on the read hot key to obtain a hash value of the hot key.
Step S204: and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
Step S206: and determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table.
Optionally, the number of the cache memories in each of the cache memory blocks is the same, and the number of the cache memories in each of the cache memory blocks can be dynamically adjusted according to needs.
Step S208: and performing routing calculation on the variable of each cache memory in the cache memory block by using the target route, and determining the hot key stored in the optimal cache memory.
The variables include a failure rate of a cache memory, average cache consumption time, cache flow, a memory usage rate, a CPU (Central Processing Unit) usage rate, and an IO (Input/Output) usage rate.
Optionally, the routing priority of the variables is failure rate, average cache consumption time, cache flow, memory usage, CPU usage, and IO usage, and the priority may also be dynamically adjusted as needed.
In summary, in the hot key storage method of the present invention, when a hot key storage request of a client is received, hash calculation is performed on a read hot key to obtain a hash value of the hot key, then a module is performed on a route by using the hash value to determine a target route corresponding to the hot key, and finally an optimal cache memory in a cache cluster is determined by using the target route to store the hot key. According to the hot key storage method and device provided by the embodiment of the invention, the routing layer is added between the server side and the cache memory, the target route corresponding to the hot key in the routing layer selects the optimal cache memory to store the hot key according to the state of the cache memory, namely, one hot key finally corresponds to one cache memory and is stored in the cache memory, and the technical effects that the complexity of a system is lowered, and the optimal cache memory can be selected to store the hot key are achieved.
In another possible implementation manner, corresponding to the hotkey storage method provided in the foregoing implementation manner, an embodiment of the present invention further provides a hotkey storage device, where the hotkey storage device is applied to a server, and fig. 3 is a block diagram of a hotkey storage device provided in an embodiment of the present invention. As shown in fig. 3, the apparatus includes:
the hash calculation module 301 is configured to, when a hot key storage request of a client is received, perform hash calculation on the read hot key to obtain a hash value of the hot key;
a route determining module 302, configured to perform modulo on a route by using the hash value, and determine a target route corresponding to the hot key;
and a hot key storage module 303, configured to determine, by using the target route, an optimal cache memory in the cache cluster to store the hot key.
In actual use, the route determining module 302 is configured to:
and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
In actual use, the hot key storage module 303 is configured to:
determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table;
and determining the optimal cache memory in the cache memory blocks to store the hot keys by utilizing the target route.
In actual use, the hot key storage module 303 is further configured to:
and performing routing calculation on the variable of each cache memory in the cache memory block by using the route, and determining the optimal cache memory to store the hot key.
The variables comprise the failure rate of the cache memory, the average cache consumption time, the cache flow, the memory utilization rate, the CPU utilization rate and the IO utilization rate.
In summary, in the hotkey storage device according to the embodiment of the present invention, when a hotkey storage request of a client is received, a hash value of a hotkey is obtained by performing hash calculation on a read hotkey, and then a module is performed on a route by using the hash value to determine a target route corresponding to the hotkey, and finally an optimal cache memory in a cache cluster is determined by using the target route to store the hotkey. According to the hot key storage method and device provided by the embodiment of the invention, the routing layer is added between the server side and the cache memory, the target route corresponding to the hot key in the routing layer selects the optimal cache memory to store the hot key according to the state of the cache memory, namely, one hot key finally corresponds to one cache memory and is stored in the cache memory, and the technical effects that the complexity of a system is lowered, and the optimal cache memory can be selected to store the hot key are achieved.
In yet another possible implementation manner, an embodiment of the present invention further provides a server, and fig. 4 shows a schematic structural diagram of the server provided in the embodiment of the present invention, and referring to fig. 4, the server includes: a processor 400, a memory 401, a data bus 402 and a communication interface 403, wherein the processor 400, the memory 401, the communication interface 403 are connected through the data bus 402; the processor 400 is used to execute executable modules, such as computer programs, stored in the memory 401.
Wherein the memory 401 stores computer-executable instructions that can be executed by the processor 400, the processor 400 executes the computer-executable instructions to implement the methods described above.
Further, the Memory 401 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 403 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The data bus 402 may be an ISA data bus, a PCI data bus, or an EISA data bus, among others. The data bus may be divided into an address data bus, a data bus, a control data bus, etc. For ease of illustration, only one double-headed arrow is shown in fig. 4, but this does not indicate only one data bus or one type of data bus.
The memory 401 is used for storing a program, and the processor 400 executes the program after receiving a program execution instruction, and the hot key storage method disclosed in any embodiment of the invention may be applied to the processor 400, or implemented by the processor 400.
Further, processor 400 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 400. The Processor 400 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 401, and the processor 400 reads the information in the memory 401 and completes the steps of the method in combination with the hardware.
In yet another possible implementation, the embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions, which, when invoked and executed by a processor, cause the processor to implement the method described above.
The hot key storage device provided by the embodiment of the invention has the same technical characteristics as the hot key storage method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The computer program product of the hotkey storage method and the hotkey storage device provided by the embodiment of the present invention includes a computer readable storage medium storing a program code, and instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a ReaD-Only Memory (ROM), a RanDom Access Memory (RAM), a magnetic disk, or an optical disk.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A hotkey storage method is applied to a server side and comprises the following steps:
when a hot key storage request of a client is received, performing hash calculation on the read hot key to obtain a hash value of the hot key;
utilizing the hash value to perform modulo operation on the route, and determining a target route corresponding to the hot key;
and determining the optimal cache memory in the cache cluster to store the hot key by using the target route.
2. The method according to claim 1, wherein the modulo the route by the hash value to determine the target route corresponding to the hot key comprises:
and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
3. The method of claim 1, wherein determining the optimal cache memory in the cache cluster to store the hot key using the target route comprises:
determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table;
and determining the optimal cache memory in the cache memory blocks to store the hot keys by utilizing the target route.
4. The method of claim 3, wherein the determining an optimal cache memory in the cache memory bank to store the hot key using the target route comprises:
performing routing calculation on variables of each cache memory in the cache memory blocks by using the route, and determining the optimal cache memory to store the hot key; the variables comprise the failure rate of the cache memory, the average cache consumption time, the cache flow, the memory utilization rate, the CPU utilization rate and the IO utilization rate.
5. The method of claim 1, wherein the number of cache memories in each cache memory bank is the same.
6. A hotkey storage device, wherein the hotkey storage device is applied to a server, and the hotkey storage device comprises:
the hash calculation module is used for performing hash calculation on the read hot key when a hot key storage request of the client is received to obtain a hash value of the hot key;
the route determining module is used for performing modulo operation on the route by utilizing the hash value and determining a target route corresponding to the hot key;
and the hot key storage module is used for determining the optimal cache memory in the cache cluster to store the hot key by utilizing the target route.
7. The hotkey storage device of claim 6, wherein the route determination module is configured to:
and utilizing the hash value to perform modulo on the route according to the following formula, and determining the target route corresponding to the hot key: and the target route corresponding to the hot key is the hash value% route number of the hot key.
8. The hotkey storage device of claim 6, wherein said hotkey storage module is configured to:
determining a cache memory block corresponding to the target route in the cache cluster based on a predetermined routing table;
and determining the optimal cache memory in the cache memory blocks to store the hot keys by utilizing the target route.
9. The hotkey storage device of claim 8, wherein said hotkey storage module is further configured to:
performing routing calculation on variables of each cache memory in the cache memory blocks by using the route, and determining the optimal cache memory to store the hot key; the variables comprise the failure rate of the cache memory, the average cache consumption time, the cache flow, the memory utilization rate, the CPU utilization rate and the IO utilization rate.
10. A computer-readable storage medium, having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, is adapted to carry out the method of any one of claims 1-5.
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| CN104301233A (en) * | 2014-10-31 | 2015-01-21 | 易准科技发展（上海）有限公司 | Route access method, route access system and user terminal |
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