CN103428008A - Big data distribution strategy oriented to multiple user groups - Google Patents
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Abstract
The invention relates to a big data distribution strategy oriented to multiple user groups. The big data distribution strategy relates to a plurality of virtual servers and a virtual machine management module, wherein the virtual servers operate on a physical server and constitute a virtual server cluster, main virtual servers are arranged in the virtual server cluster, the main virtual servers are selected from the virtual servers in the Paxos algorithm, the virtual server cluster is further provided with monitoring modules, and the monitoring modules are used for monitoring load conditions of the virtual servers in the virtual server cluster and adding the virtual servers into the cluster or removing the virtual servers from the cluster at any time. The big data distribution strategy has the advantages of having concise steps and few calculation steps, completely solving the problems that load balance cannot be regulated accurately because control granularity is too coarse during response to big data distribution, and having good application value.
Description
Technical field
The present invention relates to a kind of facing multiple users group's large Data dissemination strategy.
Background technology
Along with the fast development of Internet and improving constantly of traffic carrying capacity, based on network data access flow increases rapidly, particularly to the access of data center, large enterprise and portal website etc.Simultaneously, server site is by application programs such as HTTP, FTP, and for the visitor provides more and more abundanter content and information, server is gradually by data submerge.
In the computer network of the large transfer of data of magnanimity, development with respect to network technology, the growth of server process speed and internal storage access speed is but well below the growth of the network bandwidth and application service, the growth of the number of users that the network bandwidth brings when increasing, also make server resource consumption serious, thereby server become network bottleneck.Traditional single cpu mode, also often become the network failure point.
All these has proposed the demand of high-performance and high reliability to the application service.This wherein most important two kinds of technology be load-balancing technique and Intel Virtualization Technology.
Load balancing provide a kind of cheapness, effective, transparent method extended network equipment and server bandwidth, increase throughput, Strengthens network data-handling capacity, improve flexibility and the availability of network.
Intel Virtualization Technology can enlarge the capacity of hardware, simplifies the process that reconfigures of software.Along with the widespread deployment of cloud computing even of multiple nucleus system, cluster, grid in recent years, the advantage of Intel Virtualization Technology in the business application embodies day by day, not only reduced the IT cost, but also strengthened security of system and reliability.
In the system towards multiple customer group, often the different user group is different to the resource requirement of server, and this demand is dynamic change, often there are certain user group's system overload or the situation of some system resources in computation free time in prior art, can't be reacted according to user's request rapidly and be adjusted, reduce the actual effect of load-balancing technique, therefore be necessary to develop a kind of new types of data distribution method that can make up existing load-balancing technique.
Summary of the invention
The present invention is directed to prior art can't adjust the dynamic change of resource requirement in real time according to different user, causes the shortcoming that the system service efficiency is low, and a kind of novel facing multiple users group's large Data dissemination strategy is provided.
For achieving the above object, the present invention can take following technical proposals:
Facing multiple users group's large Data dissemination strategy, comprise a plurality of virtual servers and the Virtual Machine Manager module that operate on physical server, a plurality of virtual servers form a Virtual Server Cluster, be provided with main virtual server in Virtual Server Cluster, main virtual server is selected in virtual server by the Paxos algorithm to obtain; Concrete steps are as follows:
1) on physical server, a plurality of virtual servers of operation form Virtual Server Cluster;
2) virtual server produces the load statistics data of self, in the load statistics data of all virtual servers of scope inter-sync of Virtual Server Cluster;
3) Virtual Server Cluster is monitored the load statistics data of the virtual server in this cluster;
4) above-mentioned steps 3) in, if in Virtual Server Cluster, the quantity of idle virtual server surpasses threshold value, select at random the virtual server of a fantasy, delete this virtual server in Virtual Server Cluster, notice Virtual Machine Manager module reclaims deleted virtual server to the idle virtual server of system pond, the utilance utl=0 of the virtual server of described free time, utilance
Wherein, the system load that Load is virtual server, the disposal ability that Capacity is virtual server;
5) above-mentioned steps 4) in, if in Virtual Server Cluster, the utilance utl-Group of virtual server is greater than threshold value, and the idle virtual server of system pond is not empty, the virtual server in the idle virtual server of system pond is moved in Virtual Server Cluster to utilance
Wherein,
For the utilance of single virtual server, Load
iFor the system load of virtual server, Capacity
iFor the disposal ability of virtual server, the number that G is the virtual server in Virtual Server Cluster;
When 6) Virtual Server Cluster receives user's Data dissemination request, according to above-mentioned steps 4) the utilance utl of gained virtual server selects the minimum virtual server of load, and the Data dissemination request is sent to the minimum virtual server of this load processes.
As preferably, comprise a plurality of Virtual Server Cluster, the virtual server in each Virtual Server Cluster all is positioned on the Same Physical server.
As preferably, also comprise monitoring module, above-mentioned steps 3) in, by monitoring module, the load statistics data of virtual server are monitored, and submitted to the Virtual Machine Manager module.
As preferably, described monitoring module is arranged in virtual server; Also comprise following concrete steps: above-mentioned steps 3), carry out synchronous transmission between the load statistics data that monitoring module obtains monitoring each virtual server in Virtual Server Cluster, between each monitoring module, detect online each other, described online detection is, in the sense cycle of 1s, monitoring module sends a connection request to busy virtual server, if continuous three sense cycle all meet with a response, this virtual server does not lose the network connection; Otherwise carry out the synchronous transmission of load statistics data with this busy virtual server.
As preferably, also comprise following concrete steps: after monitoring module and main virtual server lose network and be connected, by the Paxos algorithm, reselect main virtual server, new main virtual server notice Virtual Machine Manager module reclaims old main virtual server.
As preferably, described Virtual Machine Manager module adopts the virtual server of ltsh chain table structure organization free time, and the Key of ltsh chain table is the ID of the physical server of operation virtual server; Also comprise following concrete steps: above-mentioned steps 4), when virtual server is recycled to the idle virtual server of system pond, the Virtual Machine Manager module is put into ltsh chain table according to the ID of the physical server at this virtual server place by this virtual server; Above-mentioned steps 5) in, when idle virtual server shifts out the idle virtual server of system pond, the idle virtual server of the preferential searching system of Virtual Machine Manager module pond, the virtual server that runs on the Same Physical server with virtual server in the target Virtual Server Cluster is distributed.
As preferably, also comprise equation message distribution platform, for the load statistics data of all virtual servers in synchronized clusters, the described form of equation message distribution platform being passed through to information broadcast sends the load statistics data to the virtual server in cluster.
The present invention, owing to having adopted above technical scheme, has significant technique effect:
The present invention is based on the dynamic adjustment to virtual server, made up the deficiency of carrying out load balancing between the user, simultaneously, by the monitoring to the load statistics data, can make dynamically feedback timely to user's request, ensure that compared to traditional quality service technology is only controlled granularity for the service of certain physical equipment meticulousr, more can meet the particular demands of current data distribution service.Secondly, distribute reclaim mechanism by virtual machine, managing virtual machines resource more effectively, because virtual machine distributes reclaim mechanism, be to build on the basis of load statistics data synchronous transmission, to the user, ask the reaction of required load more rapid, accurately, there is more high flexibility compared to prior art, the more effective server resource that utilizes, and can reduce the power consumption of data center.
Further, by the ltsh chain table technology, and the Key of chained list is associated with the ID of physical server, has guaranteed to divide timing to virtual server, the virtual server run on the same physical server can be included into same cluster, has improved efficiency and the level of resources utilization of Data Migration.
In order to monitor more accurately the load statistics data, be provided with monitoring module on each virtual server, monitoring module is the synchronized loading statistics each other, also virtual server and main virtual server are detected online simultaneously, reduced due to the impact of server failure on the entire system resource, improved the stability of system.
In addition, it is synchronous that monitoring module also carries out data by one to equation message distribution platform, further improved sync rates, improved the accuracy of distributing virtual server.
The accompanying drawing explanation
Fig. 1 is main flow schematic diagram of the present invention.
Fig. 2 is system configuration schematic diagram of the present invention.
Fig. 3 is the data structure schematic diagram in the Virtual Machine Manager module.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Facing multiple users group's large Data dissemination strategy, as shown in Figure 2, the Virtual Machine Manager module 2 of system is in charge of distribution and the recovery of virtual server 1 to its system architecture diagram, and traffic load statistics between responsible Virtual Server Cluster 3.System, according to the application demand of different customer groups, is divided into several virtual server groups by virtual server 1, and the virtual server group, as Virtual Server Cluster 3, has Group1 and Group2.The virtual server 1 that some is arranged in each virtual server group, and a main virtual server 1 produced based on the Paxos algorithm.Group1 has VS1～VS4,4 virtual servers 1, and a main virtual server 1.In group, each virtual server 1 has a monitoring module 5, load synchronization group internal burden statistics, and maintain the online detection between virtual server 1.
As shown in Figure 3, Virtual Machine Manager module 2 is safeguarded idle virtual server 1 by the data structure of a ltsh chain table.Each virtual server 1 carries out Hash No. ID according to the physical server under it.The benefit of doing like this is when distributing virtual server 1, can guarantee that the virtual server 1 that same customer group application is used concentrates in a small amount of physical server as far as possible, thereby the network traffics of communication in can the minimizing group, and, by Hash table, search efficiency also improves a lot compared to common list structure.
On the framework basis of above device, facing multiple users group's of the present invention large Data dissemination strategy, as shown in Figure 1, it comprises the following steps:
Each physical server node is divided into 1, one group of virtual server of a plurality of virtual servers 1 and forms the request that a cluster is responsible for processing a class customer group distributed tasks;
Each virtual server 1 has and is assigned with certain resource, if the user does not specify, uses the default value of system.In one group of Virtual Server Cluster towards particular group 3, a main virtual server 1 is arranged, when this class user sends request, at first request passes through main virtual server 1.Main virtual server 1 is elected by the negotiation between virtual server in cluster 1, and after being chosen to be main virtual server 1, this virtual server 1 externally provides service.
In cluster, other virtual servers 1 determine by online detection whether main virtual server 1 works.Once main virtual server 1 is made mistakes or off-line, by above-mentioned Paxos algorithm, again consult to elect a new main virtual server 1, follow new main virtual server 1 notice Virtual Machine Manager module 2, reclaim the virtual server 1 of makeing mistakes.
Each virtual server 1 is safeguarded self load statistics data.In every group of Virtual Server Cluster 3, by the load statistics data to all virtual servers 1 in equation message distribution platform synchronized clusters group;
If the load of virtual server A is Load
A, system processing power is Capacity
A, the utilance utl of virtual server A
AFor: utl
A=Load
A/ Capacity
A.In group, the utilance of virtual server is:
Wherein G is group member's number.
The groundwork of monitoring program is as follows: a monitoring module 5 is arranged in every group of Virtual Server Cluster 3, and in 3 groups of Virtual Server Cluster of monitoring, the load of each virtual server 1; Utl-Group data in regular collection group, and report to system virtual machine administration module 2; If in group, have the member lose with monitoring module 5 between be connected, notify Virtual Machine Manager module 2 to reclaim the resource of these virtual servers 1.
If detecting server count idle in cluster, monitoring module 5 surpasses certain threshold value, this threshold value is preset value, in cluster, choose at random the server of a free time, then delete this server in cluster, and notice Virtual Machine Manager module 2 reclaims this virtual server 1 to the idle virtual server of system pond 4; Wherein before idle virtual server 1 feeling the pulse with the finger-tip, to the user, do not provide service, i.e. utl=0%.
If monitoring module 5 detects the load sum of all virtual servers 1 in cluster and is greater than threshold value, this threshold value is set point, and the idle virtual server of system pond 4 is not empty, apply for that a virtual server 1 is added in cluster by the idle virtual server of system pond 4;
In Virtual Machine Manager module 2, by the virtual machine server 1 of ltsh chain table data structure organization free time.The ID that Key in the structure of Hash table is physical server under virtual machine server 1, Virtual Machine Manager module 2 is carried out the ltsh chain table organization and administration according to the described physical server of virtual server 1 to virtual server 1.
When the user discharges virtual machine server 1, Virtual Machine Manager module 2 is put into Hash table according to the physical server under reclaimed virtual server 1 by this virtual server 1.
When certain Virtual Server Cluster 3 files an application to ask, at first Virtual Machine Manager module 2 is found the idle virtual server 1 that has the same physical server with the interior virtual server 1 of this cluster and is distributed.
The purpose of this organizational form is to make each virtual server 1 in Virtual Server Cluster 3 concentrate on several physical servers, thereby make, in cluster, the communication between virtual server 1 can be faster, and the resource that can save physical server.
One group of Virtual Server Cluster 3, when processing a class user request, according to the load statistics data of each virtual server 1 in group, selects the minimum virtual server 1 of load to process this request;
When the user files a request to server, at first this request arrives the main virtual server 1 in Virtual Server Cluster 3, and main virtual server 1, according to the load of each virtual server 1 in group, selects a virtual server 1 to provide service for the user.
In Virtual Machine Manager module 2, main virtual server 1 selects virtual server 1 in cluster for the user provides the algorithm of service to be: in Virtual Server Cluster 3, according to the present load of virtual server 1, virtual server 1 is divided into to two groups, virtual server 1 in first group is providing service at present, and load has reached the threshold value that the user sets.The load of the virtual server 1 of second group does not reach the threshold value that the user sets.When the user asks to arrive, main virtual server 1, from second group, selects a virtual server 1 of load maximum to provide service for the user.Like this, can be so that request is processed as far as possible concentrate, thus make lacking that virtual server 1 quantity in Virtual Server Cluster 3 try one's best, make Virtual Machine Manager module 2 can have more idle virtual server 1.
In concrete application example, the cycle of the online detection of monitoring module 5 is 1s, if continuous three online detections ask connection all not meet with a response, thinks that this virtual server 1 loses network and connects.When initial, virtual server 1 number of a Virtual Server Cluster 3 is 5, if the number of current busy virtual machine server 1 accounts for more than 80% of virtual server 1 number in cluster, to new virtual server 1 resource of system virtual machine administration module 2 application.If idle virtual server 1 number in current Virtual Server Cluster 3 surpasses 40% of interior virtual server 1 sum of cluster, reporting system Virtual Machine Manager module 2 reclaims idle virtual server 1.Monitoring module 5 is every 3 seconds, i.e. load statistics data in 3 sense cycle synchronized clusters.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (7)
1. large Data dissemination strategy of the facing multiple users group, it is characterized in that, comprise a plurality of virtual servers (1) and the Virtual Machine Manager module (2) that operate on physical server (6), a plurality of virtual servers (1) form a Virtual Server Cluster (3), be provided with main virtual server (1) in Virtual Server Cluster (3), main virtual server (1) is selected to obtain in virtual server (1) by the Paxos algorithm; Concrete steps are as follows:
1) form Virtual Server Cluster (3) at physical server (6) a plurality of virtual servers of upper operation (1);
2) virtual server (1) produces the load statistics data of self, in the load statistics data of all virtual servers of scope inter-sync (1) of Virtual Server Cluster (3);
3) Virtual Server Cluster (3) is monitored the load statistics data of the virtual server in this cluster (1);
4) above-mentioned steps 3) in, if in Virtual Server Cluster (3), the quantity of idle virtual server (1) surpasses threshold value, select at random the virtual server (1) of a fantasy, delete this virtual server (1) in Virtual Server Cluster (3), notice Virtual Machine Manager module (2) reclaims deleted virtual server (1) to the idle virtual server pond of system (4), the utilance utl=0 of the virtual server of described free time (1), utilance
Wherein, the system load that Load is virtual server (1), the disposal ability that Capacity is virtual server (1);
5) above-mentioned steps 4) in, if the utilance utl-Group of the interior virtual server of Virtual Server Cluster (3) (1) is greater than threshold value, and the idle virtual server pond of system (4) is not empty, the virtual server (1) in the idle virtual server pond of a system (4) is moved in Virtual Server Cluster (3) to utilance
Wherein,
For the utilance of single virtual server (1), Load
iFor the system load of virtual server (1), Capacity
iFor the disposal ability of virtual server (1), the number that G is the virtual server (1) in Virtual Server Cluster (3);
When 6) Virtual Server Cluster (3) receives user's Data dissemination request, according to above-mentioned steps 4) the utilance utl of gained virtual server (1) selects the minimum virtual server (1) of load, and the Data dissemination request is sent to the minimum virtual server of this load (1) processes.
2. facing multiple users group's according to claim 1 large Data dissemination strategy, it is characterized in that, comprise a plurality of Virtual Server Cluster (3), the virtual server (1) in each Virtual Server Cluster (3) all is positioned on Same Physical server (6).
3. facing multiple users group's according to claim 1 large Data dissemination strategy, it is characterized in that, also comprise monitoring module (5), above-mentioned steps 3) in, by monitoring module (5), the load statistics data of virtual server (1) are monitored, and submitted to Virtual Machine Manager module (2).
4. facing multiple users group's according to claim 3 large Data dissemination strategy, is characterized in that, described monitoring module (5) is arranged in virtual server (1); Also comprise following concrete steps: above-mentioned steps 3), carry out synchronous transmission between the load statistics data that monitoring module (5) obtains monitoring each virtual server (1) in Virtual Server Cluster (3), each monitoring module detects between (5) each other online, described online detection is, in the sense cycle of 1s, monitoring module (5) sends a connection request to busy virtual server (1), if continuous three sense cycle all meet with a response, this virtual server (1) does not lose the network connection; Otherwise carry out the synchronous transmission of load statistics data with this busy virtual server (1).
5. facing multiple users group's according to claim 4 large Data dissemination strategy, it is characterized in that, also comprise following concrete steps: after monitoring module (5) and main virtual server (1) lose network and be connected, reselect main virtual server (1) by the Paxos algorithm, new main virtual server (1) notice Virtual Machine Manager module (2) reclaims old main virtual server (1).
6. facing multiple users group's according to claim 3 large Data dissemination strategy, it is characterized in that, described Virtual Machine Manager module (2) adopts the virtual server (1) of ltsh chain table structure organization free time, and the Key of ltsh chain table is the ID of the physical server (6) of operation virtual server (1); Also comprise following concrete steps: above-mentioned steps 4), when virtual server (1) is recycled to the idle virtual server pond of system (4), Virtual Machine Manager module (2) is put into ltsh chain table according to the ID of the physical server (6) at this virtual server (1) place by this virtual server (1); Above-mentioned steps 5) in, when idle virtual server (1) shifts out the idle virtual server pond of system (4), Virtual Machine Manager module (2) the idle virtual server pond of preferential searching system (4), the virtual server (1) that runs on Same Physical server (6) with virtual server (1) in target Virtual Server Cluster (3) is distributed.
7. according to claim 4,5,6 arbitrary described facing multiple users groups' large Data dissemination strategy, it is characterized in that, also comprise equation message distribution platform, for the load statistics data of all virtual servers (1) in synchronized clusters, the described form of equation message distribution platform being passed through to information broadcast sends the load statistics data to the virtual server (1) in cluster.
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