CN106598473B - Message persistence method and device - Google Patents
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- CN106598473B CN106598473B CN201510671214.6A CN201510671214A CN106598473B CN 106598473 B CN106598473 B CN 106598473B CN 201510671214 A CN201510671214 A CN 201510671214A CN 106598473 B CN106598473 B CN 106598473B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
Abstract
The invention discloses a message persistence method, which comprises the following steps: when a host initializes a message server, a persistent path of the message server is directed to a memory of the host, so that the message server can store received messages in the memory; and when a shutdown signal of the host is detected, storing the persistent message stored in the memory into a hard disk of the host. The invention also discloses a message persistence device. The invention can improve and reduce the damage of message persistence to the hard disk.
Description
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a message persistence method and apparatus.
Background
At present, the message middleware adopts a server/client mode, and includes a producer and a consumer of a message, and the message middleware completes the connection between the producer and the consumer, and an entity performing this part of functions is generally called a message server, where the message server mainly includes a switch and a message queue.
In an actual usage scenario, messages may be lost between the producer and the consumer due to factors such as packet loss, congestion of message queues, message server restart, or physical host restart at the underlying network transport layer. Especially, the message server or the physical host computer is restarted to cause the messages in the message queue to be totally lost, which is fatal in some application scenarios with strict message reliability, such as the application in the financial field. In order to solve the problem, the prior art proposes a message persistence method, and generally, a persistence parameter is specified when an exchanger, a message queue and a message are created, the exchanger writes a received message into a hard disk, and then the message queue extracts a message to be sent from the hard disk to perform a sending operation, so that, after a message server or a physical host is restarted, the message stored in the hard disk is not lost, thereby ensuring the reliability and continuity of message transmission. However, the message persistence will frequently read and write the hard disk during the message transmission process, especially when the communication message amount is large, the hard disk will be damaged greatly.
Disclosure of Invention
The invention mainly aims to provide a message persistence method and a message persistence device, and aims to reduce damage of message persistence to a hard disk.
In order to achieve the above object, the present invention provides a message persistence method, including:
when a host initializes a message server, a persistent path of the message server is directed to a memory of the host, so that the message server can store received messages in the memory;
and when a shutdown signal of the host is detected, storing the persistent message stored in the memory into a hard disk of the host.
Preferably, after the step of directing the persistent path of the message server to the memory of the host, the method further includes:
judging whether the hard disk stores the persistent message or not;
and when the persistent message is stored in the hard disk, loading the persistent message stored in the hard disk into the memory.
Preferably, after the step of loading the persistent message stored in the hard disk into the memory, the method further includes:
and deleting the persistent message stored in the hard disk.
Preferably, when the host initializes the message server, the step of directing the persistent path of the message server to the memory of the host includes:
when a host initializes a message server, judging whether the memory is divided into a memory virtual disk RAMDISK area or not;
if so, pointing the persistent path of the message server to the RAMDISK area;
if not, the RAMDISK area is divided in the memory, and then the persistent path of the message server points to the RAMDISK area.
Preferably, when the host includes a plurality of hard disks, the step of storing the current persistent message of the memory into the hard disk of the host when the shutdown signal of the host is detected includes:
and when a shutdown signal of the host is detected, storing the persistent message stored in the memory into the hard disk with the highest read-write speed in the plurality of hard disks.
Further, to achieve the above object, the present invention provides a message persistence apparatus comprising:
the device comprises a setting module, a message server and a message processing module, wherein the setting module is used for pointing a persistent path of the message server to a memory of a host when the host initializes the message server so that the message server can store received messages in the memory;
and the persistence module is used for storing the persistence message stored in the memory into a hard disk of the host when the shutdown signal of the host is detected.
Preferably, the device for persisting messages further comprises a loading module, configured to determine whether the persistent message is stored in the hard disk; and loading the persistent message stored in the hard disk into the memory when the persistent message is stored in the hard disk.
Preferably, the loading module is further configured to delete the persistent message stored in the hard disk.
Preferably, the setting module includes:
the judging unit is used for judging whether the memory is divided into a memory virtual disk RAMDISK area or not when the host initializes the message server;
a setting unit, configured to point the persistent path of the message server to the RAMDISK area when the RAMDISK area is divided in the memory;
the setting unit is further configured to partition the RAMDISK area in the memory when the RAMDISK area is not partitioned in the memory, and then point the persistent path of the message server to the RAMDISK area.
Preferably, when the host includes a plurality of hard disks, the persistent module is further configured to store the persistent message stored in the memory to a hard disk with the highest read-write speed among the plurality of hard disks when a shutdown signal of the host is detected.
The invention leads the message server to use the memory to transfer the message in the message communication process by pointing the persistent path of the message server to the memory of the host; and when the host computer is shut down, the persistent message stored in the memory is stored in the hard disk of the host computer, compared with the prior art, the frequent reading and writing of the hard disk due to the message persistence is avoided, the damage of the message persistence to the hard disk is reduced, and meanwhile, the communication performance equivalent to the message non-persistence can be provided.
Drawings
FIG. 1 is a flowchart illustrating a first embodiment of a message persistence method according to the present invention;
fig. 2 is a functional block diagram of a message persistence apparatus according to a first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention provides a message persistence method, and referring to fig. 1, in a first embodiment of the message persistence method of the present invention, the message persistence method includes:
step S10, when the host initializes the message server, the persistent path of the message server is directed to the memory of the host, so that the message server can store the received message in the memory;
it should be noted that the message server operates on a host basis and includes a switch and a message queue for completing a connection between a message producer (sender) and a consumer (receiver). Specifically, the association between the switch and the message queue is realized by Binding, the switch and the plurality of message queues form a "Routing table" after being bound, the stored information includes a restriction condition (Binding Key) of the message queue, the switch analyzes a Routing Key in a header of the message when receiving the message, and routes the message to the message queue according to the Routing Key and the Binding Key, thereby completing message transmission.
In this embodiment, when the host initializes the message server, the persistent path of the message server is directed to the memory of the host, where the persistent path may be directed to any area of the memory or a specific area as needed. As will be understood by those skilled in the art, after the persistent path of the message server is directed to the memory, the switch, upon receiving a message, stores the received message in the memory, and deletes the message stored in the memory after the message is routed to the message queue and is completely sent. Specifically, after the message queue completes sending the message, a successful response is fed back to the switch.
Step S20, when the shutdown signal of the host is detected, storing the persistent message stored in the memory in the hard disk of the host.
It will be readily appreciated that when message traffic is high, messages received by the switch cannot be sent in real time, resulting in a large number of messages being congested in the memory waiting to be sent. Although the memory has higher read-write performance compared with the hard disk, the memory does not have the power-off storage capability, so in order to ensure that the message can be persisted, in this embodiment, the persisted message stored in the memory is stored in the hard disk of the host when the shutdown signal of the host is detected. It can be understood by those skilled in the art that, in other embodiments, the persistent message in the memory is stored to the hard disk, and when the host is powered on again, the persistent message is loaded to the memory and is available for the message queue to send. The detection of the shutdown signal of the host is realized based on a shutdown signal of a pre-registered operating system operated by the host.
In addition, when the message server is restarted but the host is not restarted, the persistent message in the memory is still valid because the host is not powered off, and can be continuously used after the message server is restarted.
In the message persistence method provided by this embodiment, the persistent path of the message server is directed to the memory of the host, so that the message server can use the memory to transfer the message in the message communication process; and when the host computer is shut down, the persistent message stored in the memory is stored in the hard disk of the host computer, compared with the prior art, the frequent reading and writing of the hard disk due to the message persistence is avoided, the damage of the message persistence to the hard disk is reduced, and meanwhile, the communication performance equivalent to the message non-persistence can be provided.
Further, based on the first embodiment, a second embodiment of the message persistence method of the present invention is provided, and in this embodiment, after step S10, the method further includes:
judging whether the hard disk stores the persistent message or not;
and when the persistent message is stored in the hard disk, loading the persistent message stored in the hard disk into the memory.
As will be appreciated by those skilled in the art, the purpose of message persistence is to ensure that a message can be securely reached by a sender of the message to a recipient of the message, regardless of a shutdown (restart) of the message server or host, which, in this embodiment, after the initialization configuration of the message server is completed, whether the hard disk stores the persistent message is determined, based on the description of the first embodiment of the present invention, it can be understood by those skilled in the art that if the persistent message is currently stored in the hard disk, it indicates that there is a message that has not been sent when the host is powered off last time, and therefore, in this embodiment, if the persistent message is stored in the hard disk, the persistent message stored in the hard disk is loaded into the memory for the message queue to send, so that the persistent message is sent to the target recipient, and the reliability of message communication is ensured.
Further, based on the second embodiment, a third embodiment of the message persistence method of the present invention is provided, in this embodiment, after the step of loading the persistent message stored in the hard disk into the memory, the method further includes:
and deleting the persistent message stored in the hard disk.
It will be appreciated by those skilled in the art that although a hard disk typically has a large capacity, it still has an upper physical storage limit, and when the capacity is full, it will not be able to provide service normally, and cannot be used to store persistent messages, which seriously affects the reliability of message communication. Therefore, in this embodiment, after the persistent message stored in the hard disk is loaded into the memory, the persistent message is sent by a message queue, and the persistent message stored in the hard disk obviously does not have the need of continuing to be stored, at this time, the persistent message stored in the hard disk is deleted, so as to save the capacity space of the hard disk.
Further, based on any one of the foregoing embodiments, a fourth embodiment of the message persistence method of the present invention is provided, in this embodiment, the step S10 includes:
when a host initializes a message server, judging whether the memory is divided into a memory virtual disk RAMDISK area or not;
if so, pointing the persistent path of the message server to the RAMDISK area;
if not, the RAMDISK area is divided in the memory, and then the persistent path of the message server points to the RAMDISK area.
It should be noted that the RAMDISK technology is a technology for simulating a part of the area of the memory as a hard disk, and compared with direct hard disk file reading, the RAMDISK technology can greatly improve the speed of file reading performed thereon. In this embodiment, when the host initializes the message server, it is determined whether the memory is divided into the ram disk virtual area, if so, the persistent path of the message server is directly directed to the ram disk virtual area, otherwise, the ram disk virtual area is divided and initialized in the memory, and then the persistent path of the message server is directed to the ram disk virtual area.
Further, based on any one of the foregoing embodiments, a fifth embodiment of the message persistence method of the present invention is provided, in this embodiment, when the host includes a plurality of hard disks, the step S20 includes:
and when a shutdown signal of the host is detected, storing the persistent message stored in the memory into the hard disk with the highest read-write speed in the plurality of hard disks.
As will be understood by those skilled in the art, in the actual use process, a host usually has a plurality of hard disks, and the read-write performance of these hard disks is often different, for example, the host has an SSD (solid state disk) and an HDD (mechanical hard disk), and it is obvious that the read-write performance of the SSD is much higher than that of the HDD, that is, the SSD needs less time to write data of the same size compared to the HDD. Based on the description of the foregoing embodiment, the persistent message stored in the memory is transferred to the hard disk when the host is powered off, and the time taken for the host to complete the power-off operation is very short, so that the message can be further persisted.
In addition, after the persistent setting of the message server is completed, the read-write test is respectively carried out on the plurality of hard disks included in the host, and the hard disk with the highest read-write speed in the plurality of hard disks is determined.
Further, the present invention also provides a message persistence apparatus, and referring to fig. 2, in a first embodiment of the message persistence apparatus of the present invention, the message persistence apparatus includes:
a setting module 10, configured to, when a host initializes a message server, point a persistent path of the message server to a memory of the host, so that the message server stores a received message in the memory;
it should be noted that the message server operates on a host basis and includes a switch and a message queue for completing a connection between a message producer (sender) and a consumer (receiver). Specifically, the association between the switch and the message queue is realized by Binding, the switch and the plurality of message queues form a "Routing table" after being bound, the stored information includes a restriction condition (Binding Key) of the message queue, the switch analyzes a Routing Key in a header of the message when receiving the message, and routes the message to the message queue according to the Routing Key and the Binding Key, thereby completing message transmission.
In this embodiment, when the host initializes the message server, the setting module 10 directs the persistent path of the message server to the memory of the host, where the setting module 10 may direct the persistent path to any area or a certain specific area of the memory according to actual needs. As will be understood by those skilled in the art, after the setting module 10 directs the persistent path of the message server to the memory, the switch, upon receiving a message, stores the received message in the memory, and deletes the message stored in the memory after the message is routed to the message queue and is completely sent. Specifically, after the message queue completes sending the message, a successful response is fed back to the switch.
The persistent module 20 is configured to store the persistent message stored in the memory in a hard disk of the host when the shutdown signal of the host is detected.
It will be readily appreciated that when message traffic is high, messages received by the switch cannot be sent in real time, resulting in a large number of messages being congested in the memory waiting to be sent. Although the memory has higher read-write performance compared to the hard disk, it does not have the power-off storage capability, so to ensure that the message can be persisted, in this embodiment, when the power-off signal of the host is detected, the persistence module 20 stores the persisted message stored in the memory into the hard disk of the host. It can be understood by those skilled in the art that, in other embodiments, the persistent message in the memory is stored to the hard disk, and when the host is powered on again, the persistent message is loaded to the memory and is available for the message queue to send. The detection of the shutdown signal of the host by the persistence module 20 is implemented based on a shutdown signal of a pre-registered operating system running on the host.
In addition, when the message server is restarted but the host is not restarted, the persistent message in the memory is still valid because the host is not powered off, and can be continuously used after the message server is restarted.
The message persistence device provided in this embodiment directs the persistent path of the message server to the memory of the host, so that the message server can use the memory to transfer messages in the message communication process; and when the host computer is shut down, the persistent message stored in the memory is stored in the hard disk of the host computer, compared with the prior art, the frequent reading and writing of the hard disk due to the message persistence is avoided, the damage of the message persistence to the hard disk is reduced, and meanwhile, the communication performance equivalent to the message non-persistence can be provided.
Further, based on the first embodiment, a second embodiment of the message persistence apparatus of the present invention is provided, in this embodiment, the message persistence apparatus further includes a loading module, configured to determine whether the persistent message is stored in the hard disk; and loading the persistent message stored in the hard disk into the memory when the persistent message is stored in the hard disk.
As can be understood by those skilled in the art, the purpose of message persistence is to ensure that a message can safely reach a message receiver from a message sender without being affected by a message server or a host shutdown (restart), in this embodiment, after the setting module 10 completes an initialization configuration of the message server, the loading module determines whether the hard disk stores a persistent message, based on the description of the first embodiment of the present invention, it can be understood by those skilled in the art that, if the hard disk currently stores a persistent message, it indicates that there is a message that has not been sent when the host is last shutdown, and therefore, in this embodiment, if the hard disk stores a persistent message, the loading module loads the persistent message stored in the hard disk into the memory for the message queue to send, so as to send the persistent message to a target receiver, the reliability of message communication is ensured.
Further, based on the second embodiment, a third embodiment of the message persistence apparatus of the present invention is provided, in this embodiment, the loading module is further configured to delete the persistent message stored in the hard disk.
It will be appreciated by those skilled in the art that although a hard disk typically has a large capacity, it still has an upper physical storage limit, and when the capacity is full, it will not be able to provide service normally, and cannot be used to store persistent messages, which seriously affects the reliability of message communication. Therefore, in this embodiment, after the persistent message stored in the hard disk is loaded into the memory, the persistent message is sent by the message queue, and the persistent message stored in the hard disk obviously does not have the need of continuing to be stored, at this time, the loading module deletes the persistent message stored in the hard disk, so as to save the capacity space of the hard disk.
Further, based on any one of the foregoing embodiments, a fourth embodiment of the message persistence apparatus of the present invention is provided, in this embodiment, the setting module 10 includes:
the judging unit is used for judging whether the memory is divided into a memory virtual disk RAMDISK area or not when the host initializes the message server;
a setting unit, configured to point the persistent path of the message server to the RAMDISK area when the RAMDISK area is divided in the memory;
the setting unit is further configured to partition the RAMDISK area in the memory when the RAMDISK area is not partitioned in the memory, and then point the persistent path of the message server to the RAMDISK area.
It should be noted that the RAMDISK technology is a technology for simulating a part of the area of the memory as a hard disk, and compared with direct hard disk file reading, the RAMDISK technology can greatly improve the speed of file reading performed thereon. In this embodiment, when the host initializes the message server, the determining unit determines whether the memory is divided into the ram disk virtual disk region, if so, the setting unit directly directs the persistent path of the message server to the ram disk region, otherwise, the setting unit divides and initializes the ram disk region in the memory, and directs the persistent path of the message server to the ram disk region.
Further, based on any of the foregoing embodiments, a fifth embodiment of the message persistence apparatus of the present invention is provided, in this embodiment, when the host includes a plurality of hard disks, the persistence module 20 is further configured to store the persistent message stored in the memory in a hard disk with the fastest read/write speed among the plurality of hard disks when detecting a shutdown signal of the host.
As will be understood by those skilled in the art, in the actual use process, a host usually has a plurality of hard disks, and the read-write performance of these hard disks is often different, for example, the host has an SSD (solid state disk) and an HDD (mechanical hard disk), and it is obvious that the read-write performance of the SSD is much higher than that of the HDD, that is, the SSD needs less time to write data of the same size compared to the HDD. Based on the description of the foregoing embodiment, the persistent message stored in the memory is transferred to the hard disk when the host is powered off, and the time taken for the host to complete the power-off operation is very short, so that in this embodiment, when the power-off signal of the host is detected, the persistent message stored in the memory is stored in the hard disk with the fastest read-write speed among the plurality of hard disks by the persistent module 20.
In addition, after the persistent setting of the message server is completed, the setting module 10 performs read-write tests on the plurality of hard disks included in the host computer, and determines the hard disk with the highest read-write speed among the plurality of hard disks.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A message persistence method, the message persistence method comprising:
when a host initializes a message server, a persistent path of the message server is directed to a memory of the host; judging whether the hard disk stores the persistent message or not; when the persistent message is stored in the hard disk, loading the persistent message stored in the hard disk into the memory so that a message queue of the message server can extract the persistent message from the memory and send the persistent message to a message receiver; in the message communication process, the exchanger of the message server stores the received message from the message sender into the memory, extracts the message to be sent from the memory by the message queue of the message server and sends the message to the message receiver;
when a shutdown signal of the host is detected, the persistent message stored in the memory is stored in a hard disk of the host, so that the message stored in the memory is not lost after the host is shutdown, and can be safely sent to a message receiver by a message sender through the message server.
2. The message persistence method of claim 1, wherein after the step of loading the persistent message stored on the hard disk into the memory, further comprising:
and deleting the persistent message stored in the hard disk.
3. The message persistence method of any one of claims 1 to 2, wherein the step of directing a persistent path of a message server to a memory of the host when the host initializes the message server comprises:
when a host initializes a message server, judging whether the memory is divided into a memory virtual disk RAMDISK area or not;
if so, pointing the persistent path of the message server to the RAMDISK area;
if not, the RAMDISK area is divided in the memory, and then the persistent path of the message server points to the RAMDISK area.
4. The message persistence method according to any one of claims 1 to 2, wherein, when the host includes a plurality of hard disks, the step of storing the current persistent message of the memory into the hard disk of the host upon detecting a power-off signal of the host includes:
and when a shutdown signal of the host is detected, storing the persistent message stored in the memory into the hard disk with the highest read-write speed in the plurality of hard disks.
5. A message persistence apparatus, characterized in that the message persistence apparatus comprises:
the device comprises a setting module, a message receiving module and a message sending module, wherein the setting module is used for pointing a persistent path of a message server to a memory of a host when the host initializes the message server so that a switch of the message server stores a received message from a message sending party into the memory in a message communication process, and then extracts the message to be sent from the memory by a message queue of the message server and sends the message to a message receiving party;
the persistence module is used for storing the persistence message stored in the memory into a hard disk of the host when a shutdown signal of the host is detected, so that the message stored in the memory is not lost after the host is shut down and can be safely sent to a message receiver by a message sender through the message server;
the device for persisting the message further comprises a loading module, which is used for judging whether the persistent message is stored in the hard disk; and when the persistent message is stored in the hard disk, loading the persistent message stored in the hard disk into the memory so that the message queue of the message server extracts the persistent message from the memory and sends the persistent message to a message receiver.
6. The message persistence apparatus of claim 5, wherein the loading module is further to delete the persistent message stored on the hard disk.
7. The message persistence apparatus of any one of claims 5 to 6, wherein the setup module comprises:
the judging unit is used for judging whether the memory is divided into a memory virtual disk RAMDISK area or not when the host initializes the message server;
a setting unit, configured to point the persistent path of the message server to the RAMDISK area when the RAMDISK area is divided in the memory;
the setting unit is further configured to partition the RAMDISK area in the memory when the RAMDISK area is not partitioned in the memory, and then point the persistent path of the message server to the RAMDISK area.
8. The message persistence apparatus according to any one of claims 5 to 6, wherein when the host includes a plurality of hard disks, the persistence module is further configured to store the persistent message stored in the memory to a hard disk with a fastest read/write speed among the plurality of hard disks when a power-off signal of the host is detected.
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| CN102868564A (en) * | 2012-10-10 | 2013-01-09 | 山东中创软件商用中间件股份有限公司 | Information persistence method and system |
| CN103309733A (en) * | 2013-06-07 | 2013-09-18 | 深圳中兴网信科技有限公司 | Task scheduling information persistence device and task scheduling information persistence method |
| CN104424186A (en) * | 2013-08-19 | 2015-03-18 | 阿里巴巴集团控股有限公司 | Method and device for realizing persistence in flow calculation application |
| CN103870570A (en) * | 2014-03-14 | 2014-06-18 | 广州携智信息科技有限公司 | HBase (Hadoop database) data usability and durability method based on remote log backup |
| CN104298619A (en) * | 2014-09-26 | 2015-01-21 | 北京控制工程研究所 | High-speed two-stage storage system based on Ramdisk and solid state disk and data storage method |
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