CN106354548A - Virtual cluster creating and management method and device in distributed database system - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5061—Partitioning or combining of resources
- G06F9/5077—Logical partitioning of resources; Management or configuration of virtualized resources
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5083—Techniques for rebalancing the load in a distributed system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45562—Creating, deleting, cloning virtual machine instances
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/4557—Distribution of virtual machine instances; Migration and load balancing
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- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention provides a virtual cluster creating and management method and device in a distributed database system. The method includes the steps: acquiring all computing node information in the system; selecting computing nodes forming a virtual cluster from the system; allocating the deployment relation between a primary shard and a replica shard of each node of the virtual cluster; storing the deployment relation and metadata of the cluster in a management node system table of the virtual cluster. A physical cluster can be planned as the virtual cluster according to a business system, maintenance of a plurality of systems is omitted, and deployment and maintenance cost is effectively reduced.
Description
Technical field
The invention belongs to database technical field, especially relate to Virtual Cluster wound in a kind of distributed data base system
Build, management method and device.
Background technology
Virtual Cluster is made up of multiple guest virtual machines, and these guest virtual machines are arranged on by one or more physical clusters
On the distributed server constituting.Logically, be in a Virtual Cluster guest virtual machine spanned by one multiple
The virtual network of physical network is interconnected.Virtual Cluster has clear and definite border.One Virtual Cluster can be by multiple stage thing
Reason machine is constituted it is also possible to by a virtual machine host operating system management physical machine that may operate on multiple physical clusters
Resource, virtual machine runs thereon, and can run the operating system different with main frame.
Purpose using virtual machine is the multiple functions of merging same physical server.This can significantly improve server
Resource utilization with application motility.Virtual machine can back up on multiple physical servers, to improve distributed parallel
Degree, fault-tolerance, accelerate disaster recovery speed.The nodes of Virtual Cluster can dynamically increase and decrease, with overlay network in p2p network
Scale change is similar.The inefficacy of physical node can make the virtual machine running thereon also lose efficacy, but the inefficacy of virtual machine is not
Host computer system can be affected.
With the extensive application of system virtualization, (also referred to as empty to the virtual machine operating on a large amount of physical computing nodes
Intend cluster) need effectively to be managed, thus building high performance virtual computation environmental.Specifically, including Virtual Cluster
Deployment, the supervision of large-scale cluster and management, and scheduling of resource, load balancing, server merge, the technology such as fault-tolerant.
Content of the invention
The invention provides the establishment of Virtual Cluster, management method and device in a kind of distributed data base system, with reality
The now effective management to Virtual Cluster in distributed data base.
In a first aspect, embodiments providing a kind of creation method of Virtual Cluster in distributed data base system,
Including:
All calculate node information in acquisition system；
The calculate node of composition Virtual Cluster is chosen from system；
Configure the main burst of described Virtual Cluster node and the deployment relation of copy burst；
The metadata of described deployment relation and described cluster is stored in the management node system table of described Virtual Cluster.
Second aspect, the embodiment of the present invention additionally provides a kind of manager of Virtual Cluster in distributed data base system
Method, comprising:
Create table in the management node of described Virtual Cluster；
Table is created in the node of other management nodes and Virtual Cluster；
The management metadata system table of clustered node and the corresponding relation of Virtual Cluster.
Further, the described management metadata system table of clustered node and the corresponding relation of Virtual Cluster, comprising:
Read metadata system table from the management node of described Virtual Cluster；
The corresponding Virtual Cluster of described system table is read from metadata system table；
The deployment relation of main burst and secondary fragment data and main burst on node is read from described metadata system table
Cryptographic Hash with secondary burst；
Calculate the cryptographic Hash of loading data, and the node according to belonging to described cryptographic Hash corresponding data major-minor burst, will
Described data is inserted in the table of described node.
Further, the described management metadata system table of clustered node and the corresponding relation of Virtual Cluster, comprising:
Virtual Cluster belonging to data is read by the management node of Virtual Cluster；
Read and return the information in described Virtual Cluster table.
Further, also include:
If the Virtual Cluster belonging to data be not less than two, on the first Virtual Cluster create middle table, and by its
The Query Result redistribution of its Virtual Cluster is in described middle table.
Further, the described management metadata system table of clustered node and the corresponding relation of Virtual Cluster, comprising:
Read metadata system table from the management node of described Virtual Cluster；
Pin described Virtual Cluster；
The data of the node according to modification determines the deployment relation of main burst and secondary fragment data on Virtual Cluster node；
Further, methods described also includes: the metadata of amended Virtual Cluster is stored in the section of management cluster
In the system table of point.
Data redistribution to Virtual Cluster.
The third aspect, the embodiment of the present invention additionally provides a kind of establishment dress of Virtual Cluster in distributed data base system
Put, comprising:
Information acquisition unit, for calculate node information all in acquisition system；
Node selection unit, for choosing the calculate node of composition Virtual Cluster from system；
Relation dispensing unit, for configuring the main burst of described Virtual Cluster node and the deployment relation of copy burst；
Memory element, for being stored in the management of described Virtual Cluster by the metadata of described deployment relation and described cluster
Node system table.
Fourth aspect, the embodiment of the present invention additionally provides a kind of manager of Virtual Cluster in distributed data base system
Method, comprising:
Table creating unit, creates table for the management node in described Virtual Cluster；
Creating unit, for creating table in the node of other management nodes and Virtual Cluster；
Relation management unit, for managing the metadata system table of clustered node and the corresponding relation of Virtual Cluster.
In distributed data base system provided in an embodiment of the present invention, Virtual Cluster establishment, management method and device, permissible
Physical cluster is planned to by Virtual Cluster according to operation system, Maintenance free, covers system more, effectively reduce deployment and maintenance cost.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description be only the present invention some are real
Apply example, for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other accompanying drawings
Fig. 1 is that the flow process of the creation method of Virtual Cluster in the distributed data base system that the embodiment of the present invention one provides is shown
It is intended to；
Fig. 2 is that the flow process of the management method of Virtual Cluster in the distributed data base system that the embodiment of the present invention two provides is shown
It is intended to；
Fig. 3 is that the structure of the creating device of Virtual Cluster in the distributed data base system that the embodiment of the present invention three provides is shown
It is intended to；
Fig. 4 is that the structure of the managing device of Virtual Cluster in the distributed data base system that the embodiment of the present invention four provides is shown
It is intended to.
Specific embodiment
In order to be better understood from the present invention, with reference to specific embodiments and the drawings, the present invention is further retouched
State.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment a part of embodiment that is the present invention, rather than whole embodiments.Based on this
Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
Embodiment one
The flow process of the creation method of Virtual Cluster in the distributed data base system that Fig. 1 provides for the embodiment of the present invention one
Figure, the present embodiment is applicable to create the situation of Virtual Cluster in distributed data base system, and the method can be by being applied to point
In cloth Database Systems, the creating device of Virtual Cluster executing, can be realized by software/hardware mode, and can be integrated by this device
In distributed data base system.
Referring to Fig. 1, the creation method of Virtual Cluster in described distributed data base system, comprising:
S110, all calculate node information in acquisition system.
Travel through described distributed data system, obtain the information of all nodes.Exemplary, by the management of Virtual Cluster
Node, as entrance, obtains the information of all nodes.
S120, chooses the calculate node of composition Virtual Cluster from system.
The calculate node required for Virtual Cluster is chosen in all nodes from system.
S130, the configuration main burst of described Virtual Cluster node and the deployment relation of copy burst.
The relation of calculate node in the Virtual Cluster of the setting main burst of data and the corresponding cryptographic Hash of copy burst and selection,
The main burst of machine configuration data and the storage location of copy burst.
S140, the metadata of described deployment relation and described cluster is stored in the management node system of described Virtual Cluster
Table.
The main burst of Virtual Cluster node that determine step s130 and the deployment relation of copy burst and metadata storage
The respective stored information of Virtual Cluster in the system table of the management node of Virtual Cluster, can be obtained by management node.
Physical cluster can be planned to Virtual Cluster according to operation system by the present embodiment, covering system more, have Maintenance free
Effect reduces deployment and maintenance cost.
Embodiment two
The flow process of the management method of Virtual Cluster in the distributed data base system that Fig. 2 provides for the embodiment of the present invention two
Figure, the present embodiment is applicable to the situation that distributed data base system is managed to Virtual Cluster, and the method can be by being suitable for
In distributed data base system, the managing device of Virtual Cluster executing, can be realized by software/hardware mode, and can by this device
It is integrated in distributed data base system.
Referring to Fig. 2, the management method of Virtual Cluster in described distributed data base system, comprising:
S210, creates table in the management node of described Virtual Cluster.
Create table in the management order of the Virtual Cluster determining, and specify the title of the corresponding Virtual Cluster of table.
S220, creates table in the node of other management nodes and Virtual Cluster.
All of management node and the corresponding calculate node of this Virtual Cluster all create table.
S230, the management metadata system table of clustered node and the corresponding relation of Virtual Cluster.
The deployment relation of the main burst of Virtual Cluster node and copy burst and metadata are stored in the pipe of Virtual Cluster
In the table of system table of reason node, and in the table of the calculate node being synchronized to Virtual Cluster, can be obtained virtual by management node
The respective stored information of cluster.
Exemplary, it is possible to achieve the data of Virtual Cluster loads: reads first number from the management node of described Virtual Cluster
According to system table；The corresponding Virtual Cluster of described system table is read from metadata system table；Read from described metadata system table
Take the cryptographic Hash of the deployment relation of main burst and secondary fragment data and main burst and secondary burst on node；Calculate loading data
Cryptographic Hash, and the node according to belonging to described cryptographic Hash corresponding data major-minor burst, described data is inserted into described node
Table in.
Additionally, also can achieve reading to Virtual Cluster data, it is divided into two kinds of situations here, the data storage of reading is one
In individual or multiple Virtual Cluster, when being stored in a cluster, read belonging to data by the management node of Virtual Cluster
Virtual Cluster；Read and return the information in described Virtual Cluster table.If the Virtual Cluster belonging to data is not less than two,
Then on the first Virtual Cluster, create middle table, and by the Query Result redistribution of other Virtual Clusters in described middle table.
Increase and delete calculate node in Virtual Cluster additionally, also can achieve, exemplary, from the pipe of described Virtual Cluster
Reason node reads metadata system table；Pin described Virtual Cluster；The data of the node according to modification determines Virtual Cluster node
Upper main burst and the deployment relation of secondary fragment data；Data redistribution to Virtual Cluster.After the completion of redistribution, release collection
Group's lock is so that the Virtual Cluster after increasing and deleting calculate node can provide service again.
The present embodiment also can achieve that calculate node is mutually mobile in different Virtual Clusters, exemplary, comprising: to pin
Mobile node corresponding removal Virtual Cluster and immigration Virtual Cluster；Removal Virtual Cluster deletes described mobile node；Move into empty
Intending cluster increases described mobile node；Release cluster lock, removal Virtual Cluster and immigration Virtual Cluster regenerate metadata system
System table.After completing to move, release cluster lock is so that removal Virtual Cluster and immigration Virtual Cluster can externally provide service.
The present embodiment also can achieve and different Virtual Clusters replicated mutually, exemplary, comprising: to judge the virtual collection of mirror image
Whether group is identical with duplication Virtual Cluster structure；When described mirror image Virtual Cluster is identical with replicating Virtual Cluster structure, determine mirror
Distinguishes data as Virtual Cluster and duplication Virtual Cluster structure；Distinguishes data synchronously and is copied in Virtual Cluster.
The management method of Virtual Cluster in the distributed data base system that the present embodiment provides, can incite somebody to action according to operation system
Physical cluster is planned to Virtual Cluster, and the miscellaneous service of Virtual Cluster is effectively managed, and covering system more, have Maintenance free
Effect reduces deployment and maintenance cost.
Embodiment three
Fig. 3 is that the structure of the creating device of Virtual Cluster in the distributed data base system that the embodiment of the present invention three provides is shown
It is intended to, as shown in figure 3, described device includes:
Information acquisition unit 310, for calculate node information all in acquisition system；
Node selection unit 320, for choosing the calculate node of composition Virtual Cluster from system；
Relation dispensing unit 330, for configuring the main burst of described Virtual Cluster node and the deployment relation of copy burst；
Memory element 340, for being stored in described Virtual Cluster by the metadata of described deployment relation and described cluster
Management node system table.
Virtual Cluster creating device in the distributed data base system that the present embodiment provides, can be according to operation system by thing
Reason cluster programming is Virtual Cluster, covers system Maintenance free more, effectively reduces deployment and maintenance cost.
Example IV
Fig. 4 is that the structure of the managing device of Virtual Cluster in the distributed data base system that the embodiment of the present invention four provides is shown
It is intended to, as shown in figure 4, described device includes:
Table creating unit 410, creates table for the management node in described Virtual Cluster；
Creating unit 420, for creating table in the node of other management nodes and Virtual Cluster；
Relation management unit 430, for managing the metadata system table of clustered node and the corresponding relation of Virtual Cluster.
The managing device of Virtual Cluster in the distributed data base system that the present embodiment provides, can incite somebody to action according to operation system
Physical cluster is planned to Virtual Cluster, and the miscellaneous service of Virtual Cluster is effectively managed, and covering system more, have Maintenance free
Effect reduces deployment and maintenance cost.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.This journey
Sequence upon execution, executes the step including above-mentioned each method embodiment；And aforesaid storage medium includes: rom, ram, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. in a kind of distributed data base system Virtual Cluster creation method it is characterised in that include:
All calculate node information in acquisition system；
The calculate node of composition Virtual Cluster is chosen from system；
Configure the main burst of described Virtual Cluster node and the deployment relation of copy burst；
The metadata of described deployment relation and described cluster is stored in the management node system table of described Virtual Cluster.
2. in a kind of distributed data base system Virtual Cluster management method it is characterised in that include:
Create table in the management node of described Virtual Cluster；
Table is created in the node of other management nodes and Virtual Cluster；
The management metadata system table of clustered node and the corresponding relation of Virtual Cluster.
3. method according to claim 2 it is characterised in that: the described management metadata system table of clustered node and virtual
The corresponding relation of cluster, comprising:
Read metadata system table from the management node of described Virtual Cluster；
The corresponding Virtual Cluster of described system table is read from metadata system table；
The deployment relation of main burst and secondary fragment data and main burst and pair on node is read from described metadata system table
The cryptographic Hash of burst；
Calculate the cryptographic Hash of loading data, and the node according to belonging to described cryptographic Hash corresponding data major-minor burst, will be described
Data is inserted in the table of described node.
4. method according to claim 2 is it is characterised in that the metadata system table of described management clustered node and virtual
The corresponding relation of cluster, comprising:
Virtual Cluster belonging to data is read by the management node of Virtual Cluster；
Read and return the information in described Virtual Cluster table.
5. method according to claim 4 is it is characterised in that also include:
If the Virtual Cluster belonging to data is not less than two, the first Virtual Cluster creates middle table, and will be other empty
The Query Result redistribution intending cluster is in described middle table.
6. method according to claim 2 is it is characterised in that the metadata system table of described management clustered node and virtual
The corresponding relation of cluster, comprising:
Read metadata system table from the management node of described Virtual Cluster；
Pin described Virtual Cluster；
The data of the node according to modification determines the deployment relation of main burst and secondary fragment data on Virtual Cluster node；
Data redistribution to Virtual Cluster.
7. method according to claim 6 is it is characterised in that methods described also includes: by amended Virtual Cluster
Metadata is stored in the system table of node of management cluster.
8. method according to claim 2 is it is characterised in that include:
Pin mobile node corresponding removal Virtual Cluster and move into Virtual Cluster；
Removal Virtual Cluster deletes described mobile node；
Moving into Virtual Cluster increases described mobile node；
Release cluster lock, removal Virtual Cluster and immigration Virtual Cluster regenerate metadata system table.
9. method according to claim 2 is it is characterised in that include:
Judge whether mirror image Virtual Cluster is identical with duplication Virtual Cluster structure；
When described mirror image Virtual Cluster is identical with replicating Virtual Cluster structure, determines mirror image Virtual Cluster and replicate Virtual Cluster
The distinguishes data of structure；
Distinguishes data synchronously and is copied in Virtual Cluster.
10. in a kind of distributed data base system Virtual Cluster creating device it is characterised in that include:
Information acquisition unit, for calculate node information all in acquisition system；
Node selection unit, for choosing the calculate node of composition Virtual Cluster from system；
Relation dispensing unit, for configuring the main burst of described Virtual Cluster node and the deployment relation of copy burst；
Memory element, for being stored in the management node of described Virtual Cluster by the metadata of described deployment relation and described cluster
System table.
Including: table creating unit, create table for the management node in described Virtual Cluster；
Creating unit, for creating table in the node of other management nodes and Virtual Cluster；
Relation management unit, for managing the metadata system table of clustered node and the corresponding relation of Virtual Cluster.
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