CN104184673B - Load-balancing method and system based on instant messaging service - Google Patents
Load-balancing method and system based on instant messaging service Download PDFInfo
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- CN104184673B CN104184673B CN201310196308.3A CN201310196308A CN104184673B CN 104184673 B CN104184673 B CN 104184673B CN 201310196308 A CN201310196308 A CN 201310196308A CN 104184673 B CN104184673 B CN 104184673B
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Abstract
The invention discloses a kind of load-balancing method and system based on instant messaging service, it is related to instant messaging field.This method includes：Social network diagram is built for instant messaging service；Subregion is carried out to social network diagram；Adjustment subregion is adapted the distribution of subregion and service server and scale；Exchanging the partition identification of user makes user fall on service server where subregion to be moved into after carrying out load balancing hash operations；Dynamic migration is carried out to user according to the partition identification of user.The present invention the instant communication relation user by carrying out social network partition, the user of close relation is set to gather same subregion, so as to obtain optimal server load arrangement view, and user is moved on new attribution server according to this figure, to reduce the resource consumption of server cross-regional communication, system is reached real load balancing in global level, solve in instantaneous communication system due to the unbalanced problem that communicated between server caused by user partition is unreasonable.
Description
Technical field
The present invention relates to instant messaging field, more particularly to a kind of load-balancing method based on instant messaging service and it is
System.
Background technology
The large-scale instant message system of internet level supports large-scale consumer by disposing multiple clusters, corresponding negative
Carry balance policy and use multi-level approach, be generally divided into global and local two kinds of load sharing policies.Server load balancing algorithm
Including hashing algorithm, precedence algorithm, minimum join algorithm, response speed algorithm, dynamic property allocation algorithm etc..These algorithms
The request from user is evenly dispersed on each server as far as possible, made at user's request that each server receives in system
The ratio of reason amount and its computing capability tends to consistent.
Instant messaging service belongs to online social networks（Online Social Networks, OSNs）Category, it is this
Using the characteristics of be that the request of front end user causes into the mutual calling of dense mesh between back-end server, it is rather than clear in the past
Successively order call.Therefore, user's request that the server of instant messaging service not only needs processing to directly receive is disposed,
Also need to the internal request called mutually between processing server.Thus the internal lack of uniformity called mutually between server is caused,
Although causing, the number of users of distribution on some server nodes is also few, and message traffic is very big, has had a strong impact on the whole network
The balance of flow.
Existing load balancing mode considers deficiency, it is necessary to a kind of suitable IMU the operation characteristic of instant messaging service
The load balancing scheme of communication service.
The content of the invention
A technical problem to be solved of the embodiment of the present invention is：It is proposed that a kind of load of suitable instant messaging service is equal
Weighing apparatus scheme.
One side according to embodiments of the present invention, propose a kind of load-balancing method based on instant messaging service, bag
Include：Social network diagram is built for instant messaging service；Subregion is carried out to social network diagram；Adjustment subregion makes subregion be taken with business
The distribution of business device and scale are adapted；Exchanging the partition identification of user makes user fall on after carrying out load balancing hash operations and wait to move
Service server where entering subregion；Dynamic migration is carried out to user according to the partition identification of user.
Another aspect according to embodiments of the present invention, propose a kind of SiteServer LBS based on instant messaging service, bag
Include：Partitioned server and adjustment of load server；Partitioned server is used for for instant messaging service structure social network diagram；It is right
Social network diagram carries out subregion；Adjustment subregion is adapted the distribution of subregion and service server and scale；Exchange point of user
Area's mark makes user fall on service server where subregion to be moved into after carrying out load balancing hash operations；Adjustment of load server
Dynamic migration is carried out to user for the partition identification according to user.
The present invention gathers the user of close relation by carrying out social network partition to the instant communication relation user
Collect same subregion, so as to obtain optimal server load arrangement view, and user is moved to new ownership according to this figure
On server, to reduce the resource consumption of server cross-regional communication, system is reached real load balancing in global level, solve
Due to the unbalanced problem that communicated between server caused by user partition is unreasonable in instantaneous communication system.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of load-balancing method one embodiment of the invention based on instant messaging service.
Fig. 2 is the load balancing contrast schematic diagram between the present invention and prior art.
Fig. 3 is the schematic diagram that the present invention carries out user's migration by exchanging partition identification.
Fig. 4 is the method flow schematic diagram that the present invention carries out dynamic migration in the case of service is not interrupted to user.
Fig. 5 is the structural representation of SiteServer LBS one embodiment of the invention based on instant messaging service.
Fig. 6 is the structural representation of SiteServer LBS another embodiment of the present invention based on instant messaging service.
Embodiment
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 describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The large-scale instant message system of internet level, user base number is big, number of servers is more, distributional region is wide, if not
The user of communications-intensive can be reasonably set to focus on same region to user partition, then the transregional traffic can be very big, makes
It is unbalance into system overall load.The present invention proposes a kind of load balancing scheme of suitable instant messaging service, says in detail below
It is bright.
Fig. 1 is the schematic flow sheet of load-balancing method one embodiment of the invention based on instant messaging service.
As shown in figure 1, the load-balancing method of the present embodiment comprises the following steps：
Step 101, social network diagram is built for instant messaging service；
Step 102, subregion is carried out to social network diagram；
Step 103, adjustment subregion is adapted the distribution of subregion and service server and scale；
Step 104, exchanging the partition identification of user makes user fall on subregion to be moved into after carrying out load balancing hash operations
Place service server；
Step 105, dynamic migration is carried out to user according to the partition identification of user.
Above-described embodiment, by carrying out social network partition to the instant communication relation user, make close relation
User gathers same subregion, so as to obtain optimal server load arrangement view, and user is moved to according to this figure
On new attribution server, to reduce the resource consumption of server cross-regional communication, system is set to reach really load in global level
Weighing apparatus, is solved in instantaneous communication system due to the unbalanced problem that communicated between server caused by user partition is unreasonable.
Fig. 2 is the load balancing contrast schematic diagram between the present invention and prior art.After prior art equilibrium, clothes
There are 5 users respectively on business device A, B, C, but due to user C, D on the user A and B, with server B in server A
And user's F close relations on E, and server C, the communication between user is more frequent, causes the money of server cross-regional communication
Source consumption is relatively more.After equilibrium of the invention, the distribution of user on the server is readjusted according to subregion, it is in close relations
User A, B, C, D and E focus in same server A, so as to reduce the resource consumption of server cross-regional communication, make be
System reaches real load balancing in global level.
For step 101, the present invention proposes a kind of exemplary method for building social network diagram, including：Taken from database
Business device obtains instant messaging service relation, relationship type and the communication frequency of time correlation between user, is according between user
When communication service relation, relationship type, with the communication frequency of time correlation build various social network diagrams.Relationship type therein
Such as can be friend relation, classmate's relation, Peer Relationships etc..In addition, instant messaging service relation be present between user is judged
When, one can be set the minimum threshold of relation to be present, for example, it can be set to the minimum threshold that relation be present is every month 30
Message, if less than 30 message, then it is considered that instant messaging service relation is not present between two users, conversely, then can be with
Think instant messaging service relation be present between two users.
For step 102, how in large-scale instant message system this million extremely huge and variable node
Various dimensions quick clustering and dynamic adjustment user partition are carried out in online social networks collection of illustrative plates above, is one from engineering viewpoint
Extremely complex and intractable global question.For this problem, the present invention uses for reference social network analysis（SNA）The section in field
Point cluster and subgraph find algorithm, propose a kind of exemplary social network diagram partition method, including：According to k-core algorithms pair
Social network diagram carries out subregion, and k-core algorithms refer to that any one user in subregion is at least individual with other k in subregion
User's opening relationships, k therein represent the default number of degrees.It should be noted that the weight of relation, example can be arranged as required to
Such as, the good friend of 10 times was contacted in one month and just establishes a relation, and some users although and good friend due to one month
Interior contact is less than 10 times, then does not have opening relationships between user and these good friends.
For step 103, the present invention proposes a kind of method of exemplary adjustment subregion, including：It is above-mentioned pre- by changing
If number of degrees k value adjusts partition size, the distribution and scale for making subregion and service server be adapted.
For step 104, due to the key used when user carries out Hash load balancing（Keyword）It is not user's mark
（Or ID）But the partition identification of user（Or partition id）, the binding relationship of the partition identification and user mark is can
Become, therefore the present invention can make user carry out load balancing by changing user's mark and the mapping relations of partition identification
Hash calculate when fall on service server to be migrated.
Because Hash is irreversible, we can not know all partition ids corresponding to server, but by having fallen on this
The customer group of server is known that a part of partition id, and then the present invention proposes following first methods, by constantly mutually
Known partition id group between server is changed, user is finally allocated to the partition id of destination server.
First method, the former partition identification of user is replaced with into new partition identification, the new partition identification can make to wait to move
Partition identification to be moved out known to one in service server where entering subregion, so that user is born using partition identification
Service server where subregion to be moved into is fallen on after carrying balanced hash operations.
For example, as shown in figure 3, user b wants to move to server B from server A, it is necessary to wait to move out from B servers
Partition id in choose a partition id for replacing former server A where user b, then user b partition id is changed to 4, then may be used
So that user b is moved into server B.In another example user d wants to move to server C from server B, it is necessary to treat from C servers
A partition id for replacing former server B where user d is chosen in the partition id moved out, then user d partition id is changed to 7,
User d can then be moved into server C.Partition identification after other users exchange as shown in figure 3, no longer repeat one by one here.
The method of exchange cannot ensure that all users obtain preferable partition id, and this limitation can voluntarily be stored up by system
Standby Free Partition ID is resolved, i.e., following second methods.
Second method, the former partition identification of user is replaced with into new partition identification, the new partition identification can make to wait to move
Free Partition mark in service server where entering subregion, so that user carries out load balancing hash using partition identification
Service server where subregion to be moved into is fallen on after computing.
Above two method, after service server where user moves to new subregion, still uniformity can be used to breathe out
Uncommon algorithm carries out customer location addressing, it is not necessary to the high routing table technology of utilization cost, is especially suitable for implementing in engineering.
For step 105, the present invention proposes a kind of method for carrying out dynamic migration to user in the case of service is not interrupted,
As shown in figure 4, comprise the following steps：
Step 401, adjustment of load server obtains user's mark of user, former partition identification, new partition identification, according to original
Partition identification carries out Hash operation and obtains the address of former service server where user, and Hash operation is carried out according to new partition identification
The address of new business services device where obtaining user；
Step 402, the address of adjustment of load server former service server according to where user, former industry where user is notified
Business server is moved out the user；
Step 403, adjustment of load server can obtain the good friend of user from database server（Good friend can be list
Form）, notify that the partition identification that service server where user good friend updates the user is new partition identification；
Step 404, former service server where user can notify user to reset by being connected in the long of subscription client
To new business services device where user, and given load adjustment server is the proxy server of its messaging, to locate
Manage its good friend while also in the situation of migration；The message that forwarding good friend issues user gives adjustment of load server；
Step 405, the new partition identification of service server record user where user good friend, using old partition identification to use
Family sends message, and new partition identification is reused to use after receiving the notice of the new partition identification of switching of adjustment of load server
Family sends message；
Step 406, the message of former service server is transmitted to where user where adjustment of load server is issued to user
New business services device, the message that new business services device where user is issued to the user good friend are transmitted to user good friend place business
Server；
Step 407, after service server where user good friend completes the renewal of new partition identification, adjustment of load service
Device is unified to service server where user good friend to send the notice for switching new partition identification, service server where user good friend
Message is sent to user using new partition identification after having notice, and notifies new business services device where user to send message no longer
Through adjustment of load transit server.
Above-mentioned moving method, it can be carried out in the case of service is not interrupted, and in user and its good friend in migration
In the case of will not miss message.
Fig. 5 is the structural representation of SiteServer LBS one embodiment of the invention based on instant messaging service.
As shown in figure 5, the SiteServer LBS of the present embodiment includes：Partitioned server 501 and adjustment of load server
502；Partitioned server 501 is used for for instant messaging service structure social network diagram；Subregion is carried out to social network diagram；Adjustment
Subregion is adapted the distribution of subregion and service server and scale；Exchanging the partition identification of user makes user carry out load balancing
Service server where subregion to be moved into is fallen on after hash operations；Adjustment of load server 502 is used for the subregion mark according to user
Know and dynamic migration is carried out to user.
Wherein, partitioned server 501 can include social network diagram structure module, for being built for instant messaging service
Social network diagram, specifically include：From database server obtain user between instant messaging service relation, relationship type and when
Between related communication frequency, according to the instant messaging service relation between user, relationship type, the communication frequency structure with time correlation
Build social network diagram.
Wherein, partitioned server 501 can include division module, for carrying out subregion to social network diagram, specifically include：
Subregion is carried out to social network diagram according to k-core algorithms, k-core algorithms refer to any one user in subregion all at least with
Other k user's opening relationships in subregion, k therein represent the default number of degrees.
Wherein, partitioned server 501 can include subregion adjusting module, make subregion and service server for adjusting subregion
Distribution and scale be adapted, specifically include：Partition size is adjusted by changing default number of degrees k value, makes subregion and business
The distribution of server and scale are adapted.
Wherein, partitioned server 501 can include partition identification adjusting module, and the partition identification for exchanging user uses
Family falls on subregion place to be moved into service server after carrying out load balancing hash operations, specifically includes：By the former subregion of user
Mark replaces with new partition identification, and the new partition identification is a Free Partition mark in service server where subregion to be moved into
Knowledge or partition identification to be moved out known to one, so that user falls on after carrying out load balancing hash operations using partition identification
Service server where subregion to be moved into.
Fig. 6 is the structural representation of SiteServer LBS another embodiment of the present invention based on instant messaging service.Such as
Shown in Fig. 6, the system also includes service server 503.Then during dynamic migration：
Adjustment of load server 502, for obtaining user's mark of user, former partition identification, newly from partitioned server 501
Partition identification, the address of former service server where Hash operation obtains user is carried out according to former partition identification, according to new subregion
Mark carries out the address of new business services device where Hash operation obtains user, the ground of former service server according to where user
Location, notify that former service server where user is moved out the user, and the good friend of user is obtained from database server, notifies that user is good
The partition identification that service server where friendly updates the user is new partition identification；
Former service server where user, for notifying new business services device where user is redirected to user, and specify
Adjustment of load server is the proxy server of its messaging；
Service server where user good friend, for recording the new partition identification of user, using old partition identification to user
Message is sent, new partition identification is reused to user after receiving the notice of the new partition identification of switching of adjustment of load server
Send message；
Former service server where user is identified as 503, no longer area in figure 6 with service server where user good friend
Point.
Adjustment of load server 502, the message for former service server where being issued to user are transmitted to where user
New business services device, the message that new business services device where user is issued to the user good friend are transmitted to user good friend place business
Server, after service server where user good friend completes the renewal of new partition identification, business where user good friend is taken
Being engaged in, device is unified to send the notice for switching new partition identification.
In specific implementation, partitioned server can use oracle because calculation scale is very big, algorithm often changes
Realize；Adjustment of load server can be based on server framework netty transformations and realize；Service server（Such as openfire）Need
Increase restful interfaces and send notification instruction for adjustment of load server.
Above-mentioned SiteServer LBS, by carrying out social network partition to the instant communication relation user, make relation
Close user gathers same subregion, so as to obtain optimal server load arrangement view, and according to this figure user
Move on new attribution server, to reduce the resource consumption of server cross-regional communication, system is reached real in global level
Load balancing, solve in instantaneous communication system due to unbalanced ask that communicated between server caused by user partition is unreasonable
Topic.Also, after service server where user moves to new subregion, still uniformity hash algorithm can be used to carry out user
Location addressing, it is not necessary to the high routing table technology of utilization cost, be especially suitable for implementing in engineering.In addition, user's migration can be with
Carried out in the case of service is not interrupted, and message will not be missed in the case of migration in user and its good friend.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (12)
1. a kind of load-balancing method based on instant messaging service, including：
Social network diagram is built for instant messaging service；
Subregion is carried out to social network diagram；
Adjustment subregion is adapted the distribution of subregion and service server and scale；
Exchanging the partition identification of user makes user fall on the new business where subregion to be moved into after carrying out load balancing hash operations
Server；
Carrying out dynamic migration to user according to the partition identification of user includes：
Adjustment of load server obtains user's mark of user, former partition identification, new partition identification, is carried out according to former partition identification
Hash operation obtains the address of former service server where user, and carrying out Hash operation according to new partition identification obtains user place
The address of new business services device, the address of former service server according to where user, former service server where user is notified to move
Go out the user；
Former service server where user notifies user to be redirected to new business services device where user, and given load adjustment clothes
Business device is the proxy server of its messaging；
The message of former service server is transmitted to new business services device where user where adjustment of load server is issued to user,
The message that new business services device where user is issued to the user good friend is transmitted to user good friend place service server.
2. according to the method for claim 1, it is characterised in that described for instant messaging service structure social network diagram bag
Include：
According to the instant messaging service relation between user, relationship type, the communication frequency structure social network diagram with time correlation.
3. according to the method for claim 1, it is characterised in that described that social network diagram progress subregion is included：
Subregion is carried out to social network diagram according to k-core algorithms, k-core algorithms refer to any one user in subregion all extremely
Other k user's opening relationships in few and subregion, k therein represent the default number of degrees.
4. according to the method for claim 3, it is characterised in that the adjustment subregion makes the distribution of subregion and service server
With scale be adapted including：
Partition size is adjusted by changing default number of degrees k value, the distribution and scale for making subregion and service server are adapted.
5. according to the method for claim 1, it is characterised in that the partition identification for exchanging user is loaded user
Service server where subregion to be moved into is fallen on after balanced hash operations includes：
The former partition identification of user is replaced with into new partition identification, the new partition identification is service server where subregion to be moved into
In a Free Partition mark or partition identification to be moved out known to one so that user is loaded using partition identification
Service server where subregion to be moved into is fallen on after balanced hash operations.
6. according to the method for claim 1, it is characterised in that the partition identification according to user enters Mobile state to user
Migration also includes：
Adjustment of load server obtains the good friend of user, notifies service server where user good friend to update the subregion mark of the user
Know for new partition identification；
The new partition identification of service server record user where user good friend, message is sent to user using old partition identification,
New partition identification, which is reused, after receiving the notice of the new partition identification of switching of adjustment of load server sends message to user；
Adjustment of load server is after service server where user good friend completes the renewal of new partition identification, to user good friend
Place service server is unified to send the notice for switching new partition identification.
7. a kind of SiteServer LBS based on instant messaging service, including：Partitioned server, adjustment of load server and business
Server；
Partitioned server is used for for instant messaging service structure social network diagram；Subregion is carried out to social network diagram；Adjustment point
Area is adapted the distribution of subregion and service server and scale；Exchanging the partition identification of user dissipates user's progress load balancing
The new business services device fallen on after column operations where subregion to be moved into；
Adjustment of load server is used for user's mark, former partition identification, the new partition identification that user is obtained from partitioned server, root
Hash operation is carried out according to former partition identification and obtains the address of former service server where user, and Hash is carried out according to new partition identification
The address of new business services device where computing obtains user, the address of former service server, notifies user institute according to where user
Moved out the user in former service server；The message of former service server is transmitted to new business where user where being issued to user
Server, the message that new business services device where user is issued to the user good friend are transmitted to user good friend place business service
Device；
Former service server where user, for notifying new business services device where user is redirected to user, and given load
Adjust the proxy server that server is its messaging.
8. system according to claim 7, it is characterised in that the partitioned server includes social network diagram structure mould
Block, for building social network diagram for instant messaging service, specifically include：According to the instant messaging service relation between user,
Relationship type, the communication frequency structure social network diagram with time correlation.
9. system according to claim 7, it is characterised in that the partitioned server includes division module, for society
Hand over network to carry out subregion, specifically include：Subregion is carried out to social network diagram according to k-core algorithms, k-core algorithms refer to point
Any one user in area at least represents the default number of degrees with other k user's opening relationships in subregion, k therein.
10. system according to claim 9, it is characterised in that the partitioned server includes subregion adjusting module, is used for
Adjustment subregion is adapted the distribution of subregion and service server and scale, specifically includes：By change default number of degrees k value come
Partition size is adjusted, the distribution and scale for making subregion and service server are adapted.
11. system according to claim 7, it is characterised in that the partitioned server includes partition identification adjusting module,
Partition identification for exchanging user makes user fall on business service where subregion to be moved into after carrying out load balancing hash operations
Device, specifically include：The former partition identification of user is replaced with into new partition identification, the new partition identification is industry where subregion to be moved into
Free Partition mark or the partition identification to be moved out known to one being engaged in server, so that user uses partition identification
Service server where subregion to be moved into is fallen on after carrying out load balancing hash operations.
12. system according to claim 7, it is characterised in that
The adjustment of load server, for obtaining the good friend of user, service server where user good friend is notified to update the use
The partition identification at family is new partition identification, right after service server where user good friend completes the renewal of new partition identification
Service server where user good friend is unified to send the notice for switching new partition identification；
Service server where user good friend, for recording the new partition identification of user, sent using old partition identification to user
Message, new partition identification is reused after receiving the notice for switching new partition identification of adjustment of load server and gives user's transmission
Message.
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| CN107786618B (en) * | 2016-08-31 | 2020-09-08 | 迈普通信技术股份有限公司 | Method and device for selecting login node |
| CN108200110A (en) * | 2016-12-08 | 2018-06-22 | 杭州海康威视系统技术有限公司 | A kind of data processing method, apparatus and system |
| CN110881058B (en) * | 2018-09-06 | 2022-04-12 | 阿里巴巴集团控股有限公司 | Request scheduling method, device, server and storage medium |
| CN110830461B (en) * | 2019-10-28 | 2021-08-20 | 杭州涂鸦信息技术有限公司 | Cross-region RPC service calling method and system based on TLS long connection |
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