CN109561153A - Distributed memory system and business switch method, device, equipment, storage medium - Google Patents
Distributed memory system and business switch method, device, equipment, storage medium Download PDFInfo
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- CN109561153A CN109561153A CN201811544565.0A CN201811544565A CN109561153A CN 109561153 A CN109561153 A CN 109561153A CN 201811544565 A CN201811544565 A CN 201811544565A CN 109561153 A CN109561153 A CN 109561153A
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- storage server
- storage
- memory system
- distributed memory
- service request
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1474—Saving, restoring, recovering or retrying in transactions
Abstract
The invention discloses a kind of business switch methods, applied to the first storage server of distributed memory system, are deployed with BBU in each storage server of distributed memory system；This method comprises: starting the BBU in the first storage server when the equipment power supply for monitoring the first storage server disconnects；During the BBU power supply in the first storage server, the machine power cut-off information is broadcasted to other each storage servers；And service stopping information is returned to the current connection user of the first storage server, service request is retransmitted to distributed memory system so as to currently connect user, distributed memory system redistributes the storage server for responding the service request.Using technical solution provided by the present invention, user is improved to the usage experience of distributed memory system, improves the reliability of distributed memory system.The invention also discloses a kind of service switching device, equipment, storage medium and distributed memory systems, have relevant art effect.
Description
Technical field
The present invention relates to computer application technologies, more particularly to a kind of distributed memory system and service switching side
Method, device, equipment, storage medium.
Background technique
With the fast development of computer technology, distributed memory system using more and more extensive.Distributed storage system
System includes multiple storage servers, the corresponding physical equipment of each storage server.When there is data storage requirement, can incite somebody to action
Data dispersion is stored in multiple storage servers of distributed memory system.Distributed memory system uses expansible system
Structure shares storage load using multiple storage servers, using location server position storage information, have high reliability,
The advantages of high availability and high access efficiency, and be easy to extend.
In distributed memory system normal course of operation, it is possible that some or certain several storage servers power off nothing
Method continues the case where offer service, and still, distributed memory system itself has fault-resistant characteristic, in certain malfunctioning node number
In the case of can work on.
In the prior art, if some storage server powers off in distributed memory system, this is had been connected to
The user of storage server can have found the storage server failure when waiting time-out, and time-out time is waited to be generally 30 seconds, point
Cloth storage system can find the storage server failure by heartbeat, and the eartbeat interval time is generally 5 seconds.User has found storage
After server failure, distributed memory system is reconnected, distributed memory system distributes other storage servers and provides for it
Service, finishing service switching.That is, service switching could be succeeded at least through 30 seconds, the time is longer, influences user
To the usage experience of distributed memory system, so that the reliability of distributed memory system is lower.
Summary of the invention
The object of the present invention is to provide a kind of distributed memory system and business switch method, device, equipment storage medium,
Quickly to carry out service switching when storage server powers off, user is promoted to the usage experience of distributed memory system,
Improve the reliability of distributed memory system.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of business switch method, applied to the first storage server of distributed memory system, the distributed storage
System includes multiple storage servers, and battery back unit B BU, the first storage clothes are deployed in each storage server
Device be engaged in as any one storage server in the distributed memory system；The described method includes:
When the equipment power supply for monitoring first storage server disconnects, start in first storage server
BBU；
During the BBU power supply in first storage server, other of Xiang Suoshu distributed memory system are each deposited
Store up server broadcast the machine power cut-off information；
And service stopping information is returned to the current connection user of first storage server, so that the current connection
User retransmits service request to the distributed memory system, and the distributed memory system, which is redistributed, responds the business
The storage server of request.
In a kind of specific embodiment of the invention, during the BBU power supply in first storage server, also wrap
It includes:
The service request that response has currently received but do not completed.
In a kind of specific embodiment of the invention, the service request that the response has currently received but do not completed, packet
It includes:
If the service request for currently having received but not completed is data write request, it is written into data and is written to institute
It states in distributed memory system.
In a kind of specific embodiment of the invention, the service request that the response has currently received but do not completed, packet
It includes:
If the service request for currently having received but not completed is data read request, in the distributed memory system
Middle reading corresponding data returns to relative users.
A kind of service switching device, applied to the first storage server of distributed memory system, the distributed storage
System includes multiple storage servers, and battery back unit B BU, the first storage clothes are deployed in each storage server
Device be engaged in as any one storage server in the distributed memory system；Described device includes:
BBU starting module, for starting described the when the equipment power supply for monitoring first storage server disconnects
BBU in one storage server；
Power cut-off information broadcast module, in first storage server BBU power supply during, to the distribution
Other each storage servers of storage system broadcast the machine power cut-off information；
Service stopping information return module is stopped for returning to service to the current connection user of first storage server
Only information, so that the current connection user retransmits service request to the distributed memory system, the distribution is deposited
Storage system redistributes the storage server for responding the service request.
In a kind of specific embodiment of the invention, further includes service request respond module, is used for:
During the BBU power supply in first storage server, the current service request for having received but not completed of response.
In a kind of specific embodiment of the invention, the service request respond module is specifically used for:
If the service request for currently having received but not completed is data write request, it is written into data and is written to institute
It states in distributed memory system.
In a kind of specific embodiment of the invention, the service request respond module is specifically used for:
If the service request for currently having received but not completed is data read request, in the distributed memory system
Middle reading corresponding data returns to relative users.
A kind of service switching equipment, applied to the first storage server of distributed memory system, the distributed storage
System includes multiple storage servers, and battery back unit B BU, the first storage clothes are deployed in each storage server
Device be engaged in as any one storage server in the distributed memory system；Include:
Memory, for storing computer program；
Processor, when for executing the computer program the step of business switch method described in realization any of the above-described.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of business switch method described in any of the above-described is realized when computer program is executed by processor.
It is standby to be deployed with battery in each storage server for a kind of distributed memory system, including multiple storage servers
Part unit B BU.
Using technical solution provided by the embodiment of the present invention, in each storage server of distributed memory system
BBU is disposed, when storage server monitors that itself equipment power supply disconnects, can star BBU, it, can be with during BBU power supply
The machine power cut-off information, and the current connection to the first storage server are broadcasted to other storage servers of distributed memory system
User returns to service stopping information, so that currently connection user is distributed to distributed memory system retransmission service request
Storage system redistributes the storage server for responding the service request, without apparent timeout action, realizes in storage service
Service switching is quickly carried out when device powers off, and is promoted user to the usage experience of distributed memory system, is improved distribution and deposit
The reliability of storage system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart of business switch method in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of service switching device in the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of service switching equipment in the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of distributed memory system in the embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of business switch method, and this method can be applied to the of distributed memory system
One storage server.In embodiments of the present invention, distributed memory system includes multiple storage servers, each storage server
In be deployed with BBU (Battery Backup Unit, battery back unit), as shown in Figure 4.That is, each storage clothes
It is engaged in device other than configured with equipment power supply, is also configured with BBU, be used for emergency service.
First storage server is any one storage server in distributed memory system.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It is shown in Figure 1, it is a kind of implementation flow chart of business switch method provided by the embodiment of the present invention, this method
It may comprise steps of:
S110: when the equipment power supply for monitoring the first storage server disconnects, start in the first storage server
BBU。
In practical applications, the first storage server in the process of running, may cause because of reasons such as power failures
Equipment power supply disconnects, and power blackout situation occurs.First storage server can be monitored the working condition of equipment power supply, supervise
When measuring the equipment power supply disconnection of the first storage server, the BBU in the first storage server can star, for the first storage clothes
Business device temporary power.
S120: during the BBU power supply in the first storage server, to other each storage clothes of distributed memory system
Business device broadcasts the machine power cut-off information.
After starting the BBU in the first storage server, which can be each component power supply of the first storage server.?
During BBU power supply in one storage server, the first storage server can be to other each storages of distributed memory system
Server broadcast the machine power cut-off information.To inform that other each storage server the machine of distributed memory system have powered off.This
Other each storage servers of sample, distributed memory system can have been powered off with the first storage server of timely learning, be considered as
One storage server exits distributed memory system.In this case, when there is new service request to arrive, distributed storage
The new service request can be distributed to other storage servers in addition to the first storage server by system.
S130: service stopping information is returned to the current connection user of the first storage server, so as to currently connect user
Service request is retransmitted to distributed memory system, distributed memory system redistributes the storage clothes for responding the service request
Business device.
During the BBU power supply in the first storage server, the first storage server can be used to the current connection of itself
Family returns to service stopping information.
It is understood that distributed memory system is receiving use in the first storage server course of normal operation
When the service request at family, according to preset allocation strategy, the first storage server may be distributed as the user, clothes are provided
Business.Before the power-off of the first storage server, there are still the user is current connection user to the connection with the user.
First storage server returns to service stopping information to current connection user, to inform that current connection user's the machine is stopped
Only service.Current connection user can deposit when receiving the service stopping information of the first storage server transmission to distribution
Storage system retransmits service request, at this point, distributed memory system has known that the first storage server powers off, distributed storage
System no longer includes the first storage server, can redistribute the storage server for responding the service request.
Using method provided by the embodiment of the present invention, disposed in each storage server of distributed memory system
BBU, when storage server monitor itself equipment power supply disconnect when, can star BBU, BBU power supply during, can to point
Other storage servers of cloth storage system broadcast the machine power cut-off information, and to the current connection user of the first storage server
Service stopping information is returned, retransmits service request, distributed storage to distributed memory system so as to currently connect user
System redistributes the storage server for responding the service request, without apparent timeout action, realizes and sends out in storage server
Service switching is quickly carried out when raw power-off, is promoted user to the usage experience of distributed memory system, is improved distributed storage system
The reliability of system.
In one embodiment of the invention, during the BBU power supply in the first storage server, this method can also be wrapped
Include following steps:
The service request that response has currently received but do not completed.
In embodiments of the present invention, BBU is deployed in each storage server.When first storage server powers off, open
Dynamic BBU is the first storage server temporary power.
Before the power-off of first storage server, it is understood that there may be the service request for having received but not completed.In this case, exist
During BBU power supply in first storage server, the first storage server can respond the business for currently having received but not completed
Request.
Specifically, can be written into if the service request for currently having received but not completed is data write request
Data are written in distributed memory system；
If the service request for currently having received but not completed is data read request, read in distributed memory system
Corresponding data is taken to return to relative users.
That is, BBU power supply can be used and guarantee the first storage server short in the power-off of the first storage server
The service request for having received but not completed processing is completed in operation in time.Data is accurate in guarantee distributed memory system
Property and integrality, improve the reliability of distributed memory system.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of service switching device, it is applied to divide
First storage server of cloth storage system, distributed memory system include multiple storage servers, each storage server
In be deployed with battery back unit B BU, the first storage server is any one storage server in distributed memory system；
A kind of service switching device described below can correspond to each other reference with a kind of above-described business switch method.
Shown in Figure 2, which comprises the following modules:
BBU starting module 210, for when the equipment power supply for monitoring the first storage server disconnects, starting first to be deposited
Store up the BBU in server；
Power cut-off information broadcast module 220, in the first storage server BBU power supply during, to distributed storage
Other each storage servers of system broadcast the machine power cut-off information；
Service stopping information return module 230 is stopped for returning to service to the current connection user of the first storage server
Only information, so that currently connection user divides again to distributed memory system retransmission service request, distributed memory system
With the storage server for responding the service request.
Using device provided by the embodiment of the present invention, disposed in each storage server of distributed memory system
BBU, when storage server monitor itself equipment power supply disconnect when, can star BBU, BBU power supply during, can to point
Other storage servers of cloth storage system broadcast the machine power cut-off information, and to the current connection user of the first storage server
Service stopping information is returned, retransmits service request, distributed storage to distributed memory system so as to currently connect user
System redistributes the storage server for responding the service request, without apparent timeout action, realizes and sends out in storage server
Service switching is quickly carried out when raw power-off, is promoted user to the usage experience of distributed memory system, is improved distributed storage system
The reliability of system.
In a kind of specific embodiment of the invention, further includes service request respond module, is used for:
During the BBU power supply in the first storage server, the current service request for having received but not completed of response.
In a kind of specific embodiment of the invention, service request respond module is specifically used for:
If currently received but the service request that does not complete is data write request, it is written into data and is written to point
In cloth storage system.
In a kind of specific embodiment of the invention, service request respond module is specifically used for:
If the service request for currently having received but not completed is data read request, read in distributed memory system
Corresponding data is taken to return to relative users.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of service switching equipment, it is applied to divide
First storage server of cloth storage system, distributed memory system include multiple storage servers, each storage server
In be deployed with battery back unit B BU, the first storage server is any one storage server in distributed memory system；
As shown in figure 3, the equipment includes:
Memory 310, for storing computer program；
Processor 320, the step of above-mentioned business switch method is realized when for executing computer program.
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of computer readable storage medium, meters
It is stored with computer program on calculation machine readable storage medium storing program for executing, above-mentioned service switching side is realized when computer program is executed by processor
The step of method.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand technical solution of the present invention and its core concept.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of business switch method, which is characterized in that applied to the first storage server of distributed memory system, described point
Cloth storage system includes multiple storage servers, is deployed with battery back unit B BU in each storage server, and described
One storage server is any one storage server in the distributed memory system；The described method includes:
When the equipment power supply for monitoring first storage server disconnects, start the BBU in first storage server；
During the BBU power supply in first storage server, other each storage clothes of Xiang Suoshu distributed memory system
Business device broadcasts the machine power cut-off information；
And service stopping information is returned to the current connection user of first storage server, so that the current connection user
Service request is retransmitted to the distributed memory system, the distributed memory system, which is redistributed, responds the service request
Storage server.
2. the method according to claim 1, wherein in first storage server BBU power supply during,
Further include:
The service request that response has currently received but do not completed.
3. according to the method described in claim 2, it is characterized in that, the response has currently received but the business not completed is asked
It asks, comprising:
If the service request for currently having received but not completed is data write request, it is written into data and is written to described point
In cloth storage system.
4. according to the method described in claim 2, it is characterized in that, the response has currently received but the business not completed is asked
It asks, comprising:
If the service request for currently having received but not completed is data read request, read in the distributed memory system
Corresponding data is taken to return to relative users.
5. a kind of service switching device, which is characterized in that applied to the first storage server of distributed memory system, described point
Cloth storage system includes multiple storage servers, is deployed with battery back unit B BU in each storage server, and described
One storage server is any one storage server in the distributed memory system；Described device includes:
BBU starting module, for when the equipment power supply for monitoring first storage server disconnects, starting described first to be deposited
Store up the BBU in server；
Power cut-off information broadcast module, in first storage server BBU power supply during, Xiang Suoshu distributed storage
Other each storage servers of system broadcast the machine power cut-off information；
Service stopping information return module, for returning to service stopping letter to the current connection user of first storage server
Breath, so that the current connection user retransmits service request, the distributed storage system to the distributed memory system
System redistributes the storage server for responding the service request.
6. device according to claim 5, which is characterized in that further include service request respond module, be used for:
During the BBU power supply in first storage server, the current service request for having received but not completed of response.
7. device according to claim 6, which is characterized in that the service request respond module is specifically used for:
If the service request for currently having received but not completed is data write request, it is written into data and is written to described point
In cloth storage system；
If the service request for currently having received but not completed is data read request, read in the distributed memory system
Corresponding data is taken to return to relative users.
8. a kind of service switching equipment, which is characterized in that applied to the first storage server of distributed memory system, described point
Cloth storage system includes multiple storage servers, is deployed with battery back unit B BU in each storage server, and described
One storage server is any one storage server in the distributed memory system；Include:
Memory, for storing computer program；
Processor, realizing the business switch method as described in any one of Claims 1-4 when for executing the computer program
Step.
9. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the step of the business switch method as described in any one of Claims 1-4 when the computer program is executed by processor
Suddenly.
10. a kind of distributed memory system, which is characterized in that including multiple storage servers, equal portion in each storage server
There is battery back unit B BU in administration.
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Application publication date: 20190402 |