CN106533774A - Method for constructing LVS system and LVS system - Google Patents
Method for constructing LVS system and LVS system Download PDFInfo
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- CN106533774A CN106533774A CN201611066953.3A CN201611066953A CN106533774A CN 106533774 A CN106533774 A CN 106533774A CN 201611066953 A CN201611066953 A CN 201611066953A CN 106533774 A CN106533774 A CN 106533774A
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- load equalizer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
-
- 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
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
-
- 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
- H04L67/2866—Architectures; Arrangements
- H04L67/30—Profiles
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Hardware Redundancy (AREA)
Abstract
The invention discloses an LVS system comprising: a load balancer, a backup server and a server node in a cluster; wherein the load balancer is configured to monitor a predetermined server node and a corresponding service process in the entire cluster by using a MON process; the backup server is used for detecting the operating state information of the load balancer according to a predetermined period through a serial line and judging whether the load balancer is invalid based on the operating state information, and taking over the IP address of the load balancer and when the load balancer is invalid. The system reduces the resource investment of service construction environment and provides a stable high-availability cluster environment. The invention also discloses a method for constructing a LVS system, which has the above-mentioned advantageous effects.
Description
Technical field
The present invention relates to server technology field, the construction method and LVS systems of more particularly to a kind of LVS systems.
Background technology
With developing rapidly for computer technology and integrated circuit technique, Web applications and take Internet era particularly
Under the background that business geometry level increases, the data traffic and calculating intensity for being served by its generation is big so that single service or simple
Service cluster can not be stable offer high-quality service, distributed system increasingly paid attention to by industry, such as Linux collection
Group service system, i.e. Linux Virtual Server (LVS) system, it is advantageous that low to hardware requirement, there is provided cross-system
Service, supports multiple network agreement, there is provided efficient firewall technology, the cluster meter of the process migration for being provided by MOSIX now
Calculate up to 100 nodes of technical support.High Availabitity technology (HA) technology energy automatic detection server node and service processes mistake,
Failure, and system can be suitably reconfigured automatically when this occurs so that other nodes in cluster can be certainly
It is dynamic to undertake these services, realize the High Availabitity of service.
But building a set of High Availabitity, the high fault-tolerant environment that is served by needs high-volume service equipment, it is that this is many big
Type Internet firm puts into huge fund one after another and builds the data center of oneself to lift stability, the high efficiency of oneself service, and this needs
Want huge resource input.Therefore, the resource input of service construction environment how is reduced while providing stable high-availability cluster
Environment, is those skilled in the art's technical issues that need to address.
The content of the invention
It is an object of the invention to provide the construction method and LVS systems of a kind of LVS systems, reduce the money of service construction environment
Source input provides stable high-availability cluster environment simultaneously.
To solve above-mentioned technical problem, the present invention provides a kind of construction method of LVS systems, including：
Load equalizer is supervised to book server node in whole cluster and corresponding with service process using MON processes
Control；
Backup server detects the running state information of the load equalizer, and root by string line according to predetermined period
Judge whether the load equalizer fails according to the running state information；
The backup server is taking over the IP address of the load equalizer when the load equalizer fails.
Optionally, load equalizer is entered to book server node in whole cluster and service processes using MON processes
Row monitoring, including：
In configuration file in MON processes, record needs the book server node of monitoring；
According to the node state of book server node described in monitoring cycle monitoring, and using service monitor monitoring correspondence
Service processes.
Optionally, backup server detects the running status letter of the load equalizer by string line according to predetermined period
Breath, and judge whether the load equalizer fails according to the running state information, including：
The HEARTBEAT processes run in backup server receive the load balancing according to predetermined period by string line
Device sends running state information using udp protocol, and the load equalizer is judged when the running state information is not received
Failure.
Optionally, the backup server is on the IP ground that the load equalizer is taken over when the load equalizer fails
Location, including：
The backup server is loaded using the adapter of ARP deception measures is described when the load equalizer fails
The IP address of weighing apparatus.
Optionally, the construction method also includes：
The load equalizer fails when client asks, then point out client to re-emit client's request.
The present invention also provides a kind of LVS systems, including：Server node in load equalizer, backup server and cluster；
Wherein,
The load equalizer, for using MON processes to book server node and corresponding with service in whole cluster
Process is monitored；
The backup server, for detecting the running status of the load equalizer by string line according to predetermined period
Information, and judge whether the load equalizer fails according to the running state information；Failing when the load equalizer
When take over the IP address of the load equalizer.
Optionally, the load equalizer includes：
Logging modle, for the book server node according to the needs monitoring recorded in the configuration file in MON processes；
Monitoring module, for the node state according to book server node described in monitoring cycle monitoring, and using service
Watch-dog monitors corresponding service processes.
Optionally, the backup server includes：
Heart beat detection module, for receiving the load according to predetermined period by string line using HEARTBEAT processes
Equalizer sends running state information using udp protocol, judges that when the running state information is not received the load is equal
Weighing apparatus fails.
Optionally, the backup server includes：
Adapter module, for when the load equalizer fails, taking over the load balancing using ARP deception measures
The IP address of device.
Optionally, the load equalizer also includes：
Reminding module, for failing when client asks, then points out client to re-emit client's request.
A kind of LVS systems provided by the present invention, including：Server section in load equalizer, backup server and cluster
Point；Wherein, the load equalizer, for using MON processes to book server node and corresponding with service in whole cluster
Process is monitored；The backup server, for detecting the fortune of the load equalizer by string line according to predetermined period
Row status information, and judge whether the load equalizer fails according to the running state information；When the load balancing
Device takes over the IP address of the load equalizer when failing；
It can be seen that, the system is used for monitoring the server node and network service on network using MON resource management systems, and
Prevent load equalizer from becoming the single point failure of whole system using standby server, realize the redundancy to load equalizer,
Improve the reliability and stability of system, i.e. the LVS systems resource input of service construction environment is reduced while providing steady
Fixed high-availability cluster environment.Present invention also offers a kind of construction method of LVS systems, with above-mentioned beneficial effect, here
Repeat no more.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
The flow chart of the construction method of the LVS systems that Fig. 1 is provided by the embodiment of the present invention；
The structured flowchart of the LVS systems that Fig. 2 is provided by the embodiment of the present invention.
Specific embodiment
The core of the present invention is to provide a kind of construction method and LVS systems of LVS systems, reduces the money of service construction environment
Source input provides stable high-availability cluster environment simultaneously.
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Refer to Fig. 1, the flow chart of the construction method of the LVS systems that Fig. 1 is provided by the embodiment of the present invention；The structure side
Method can include：
S100, load equalizer are using MON processes to book server node in whole cluster and corresponding with service process
It is monitored；
Wherein, MON is general destination's Resource Monitor System, for realizing that monitoring the server node on network asks
The availability of topic and network service.
Optionally, during in load equalizer, operation has MON processes, the i.e. configuration file in MON processes, record needs prison
The book server node of control；According to the node state of book server node described in monitoring cycle monitoring, and using service prison
Control device monitors corresponding service processes.
User can carry out book server section in configuration file according to the practical situation of server node in group system
The setting of point.The server node being monitored will be needed to write in configuration file, MON processes are operationally just to configuration text
The server node recorded in part is periodically monitored.User can according to actually used demand to configuration file in it is pre-
Determine server node and the monitoring cycle modifies.
I.e. when server failure occurs, MON processes are operated on load equalizer, are responsible for the service of the whole cluster of monitoring
Device node and service processes.The write in configuration file checks server node, then checks service within the time of regulation
Device node state.Related service monitor monitoring related service in addition.(certain server when certain service node fails
When failure occurs) advertised information is sent, load equalizer is just able to know that whether server node can receive service.
S110, backup server detect the running status letter of the load equalizer by string line according to predetermined period
Breath, and judge whether the load equalizer fails according to the running state information；
Wherein, the step purpose is to monitor whether load equalizer fails.Can be using heartbeat detecting method etc..Can
Choosing, the HEARTBEAT processes run in backup server receive the load equalizer according to predetermined period by string line
Running state information is sent using udp protocol, judges that when the running state information is not received the load equalizer loses
Effect.Realized between load equalizer and standby server by being transmitted using udp protocol on string line using HEARTBEAT
" heartbeat message ".
Wherein, the operation principle of HEARTBEAT (Linux-HA)：HEARTBEAT it is most crucial including two parts, heart beating
Monitoring part and resource take-over part, heartbeat inspecting can be carried out by network link and serial ports, and support redundant link, it
Between the state that mutually sends message to tell other side oneself current, if other side's transmission is not received within the specified time
Message, then be considered as other side's failure, at this moment can start resource take-over module to take over the resource operated on peer
Or service.
The present embodiment needs standby server to load to prevent load equalizer from becoming the single point failure of whole system
Equalizer carries out the supervision of effectiveness, and will run on the HEARTBEAT on standby server can be examined by Ethernet connection
The running status of load equalizer is surveyed, and load equalizer is taken over if " heart beating " which cannot detect load equalizer
Resource.I.e. the system needs the backup server for installing a load equalizer.Between load equalizer and backup server
Status information is sent by the string line cycle, realizes that the effectiveness to load equalizer is supervised.
S120, the backup server are on the IP ground that the load equalizer is taken over when the load equalizer fails
Location.
Specifically, backup server needs backup clothes when load equalizer fails in order to ensure the normal operation of system
The task of business device takeover load equalizer is the IP address of takeover load equalizer.Optionally, the backup server is working as
The IP address that the load equalizer is taken over when load equalizer fails is stated, can be included：
The backup server is loaded using the adapter of ARP deception measures is described when the load equalizer fails
The IP address of weighing apparatus.
Specifically, ARP (Address Resolution Protocol, address resolution protocol), is obtained according to IP address
One ICP/IP protocol of physical address.Address resolution protocol is built upon on the basis of each main frame in network trusts each other
, the main frame on network can independently send arp reply message, and the message will not be detected when other main frames receive response message
Verity will be logged into the machine arp cache；Thus attacker just can send pseudo- arp reply message to a certain main frame, make
Its information for sending cannot reach expected main frame or reach the main frame of mistake, and this just constitutes an ARP deception.ARP is used
Deception mode realizes that IP takes over, and then realizes the High Availabitity of service.
Specifically, when realizing that load equalizer fails using FAKE, backup server takes over IP address, and continues clothes
Business.
If load equalizer fails when client asks, it is desirable to which request is re-emitted.Ensure that the height of system can
With, and be easily managed.I.e. load equalizer fails when client asks, then point out client to re-emit client's request.
Prevent the misinterpretation to load equalizer failure.
Based on above-mentioned technical proposal, the construction method of the LVS systems that the embodiment of the present invention is carried using MON resource managements is
System is for monitoring server node and network service on network, and prevents load equalizer from becoming whole using standby server
The single point failure of system, realizes the redundancy to load equalizer, that is, improves the reliability and stability of system, be i.e. the LVS
The construction method of system reduces the resource input of service construction environment and provides stable high-availability cluster environment simultaneously.
Below LVS systems provided in an embodiment of the present invention are introduced, LVS systems described below with it is above-described
The construction method of LVS systems can be mutually to should refer to.
Refer to Fig. 2, the structured flowchart of the LVS systems that Fig. 2 is provided by the embodiment of the present invention；The LVS systems can be wrapped
Include：Load equalizer 100, server node 300 in backup server 200 and cluster；Wherein,
The load equalizer 100, for being taken to book server node in whole cluster and correspondence using MON processes
Business process is monitored；
The backup server 200, for detecting the fortune of the load equalizer 100 by string line according to predetermined period
Row status information, and judge whether the load equalizer 100 fails according to the running state information；Loading when described
Weighing apparatus 100 takes over the IP address of the load equalizer 100 when failing.
Based on above-described embodiment, the load equalizer 100 includes：
Logging modle, for the book server node according to the needs monitoring recorded in the configuration file in MON processes；
Monitoring module, for the node state according to book server node described in monitoring cycle monitoring, and using service
Watch-dog monitors corresponding service processes.
Based on above-described embodiment, the backup server 200 includes：
Heart beat detection module, for receiving the load according to predetermined period by string line using HEARTBEAT processes
Equalizer sends running state information using udp protocol, judges that when the running state information is not received the load is equal
Weighing apparatus fails.
Based on above-mentioned any embodiment, the backup server 200 includes：
Adapter module, for when the load equalizer fails, taking over the load balancing using ARP deception measures
The IP address of device.
Based on above-mentioned any embodiment, the load equalizer 100 also includes：
Reminding module, for failing when client asks, then points out client to re-emit client's request.
Based on above-mentioned technical proposal, the LVS systems that the embodiment of the present invention is carried, the system are used using MON resource management systems
To monitor the server node on network and network service, and prevent load equalizer from becoming whole system using standby server
Single point failure, realize the redundancy to load equalizer, that is, improve the reliability and stability of system, be i.e. the LVS systems
The resource input for reducing service construction environment provides stable high-availability cluster environment simultaneously.
In description, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
Speech, as which corresponds to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes the composition and step of each example in the above description according to function.These
Function actually with hardware or software mode performing, depending on the application-specific and design constraint of technical scheme.Specialty
Technical staff can use different methods to realize described function to each specific application, but this realization should not
Think beyond the scope of this invention.
The step of method described with reference to the embodiments described herein or algorithm, directly can be held with hardware, processor
Capable software module, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above the construction method and LVS systems of LVS systems provided by the present invention are described in detail.Herein should
The principle and embodiment of the present invention are set forth with specific case, the explanation of above example is only intended to help and manages
The solution method of the present invention and its core concept.It should be pointed out that for those skilled in the art, without departing from
On the premise of the principle of the invention, some improvement and modification can also be carried out to the present invention, these improve and modification also falls into this
In bright scope of the claims.
Claims (10)
1. a kind of construction method of LVS systems, it is characterised in that include：
Load equalizer is monitored to book server node in whole cluster and corresponding with service process using MON processes；
Backup server detects the running state information of the load equalizer by string line according to predetermined period, and according to institute
State running state information and judge whether the load equalizer fails；
The backup server is taking over the IP address of the load equalizer when the load equalizer fails.
2. the construction method of LVS systems according to claim 1, it is characterised in that load equalizer utilizes MON processes pair
In whole cluster, book server node and service processes are monitored, including：
In configuration file in MON processes, record needs the book server node of monitoring；
According to the node state of book server node described in monitoring cycle monitoring, and corresponding clothes are monitored using service monitor
Business process.
3. the construction method of LVS systems according to claim 2, it is characterised in that backup server is pressed by string line
The running state information of the load equalizer is detected according to predetermined period, and the load is judged according to the running state information
Whether equalizer fails, including：
The HEARTBEAT processes run in backup server receive the load equalizer profit according to predetermined period by string line
Running state information is sent with udp protocol, the load equalizer failure is judged when the running state information is not received.
4. the construction method of the LVS systems according to any one of claim 1-3, it is characterised in that the backup server
In the IP address that the load equalizer is taken over when the load equalizer fails, including：
The backup server takes over the load equalizer using ARP deception measures when the load equalizer fails
IP address.
5. the construction method of LVS systems according to claim 4, it is characterised in that also include：
The load equalizer fails when client asks, then point out client to re-emit client's request.
6. a kind of LVS systems, it is characterised in that include：Server node in load equalizer, backup server and cluster；Its
In,
The load equalizer, for using MON processes to book server node in whole cluster and corresponding with service process
It is monitored；
The backup server, for detecting the running status letter of the load equalizer by string line according to predetermined period
Breath, and judge whether the load equalizer fails according to the running state information；When the load equalizer fails
Take over the IP address of the load equalizer.
7. LVS systems according to claim 6, it is characterised in that the load equalizer includes：
Logging modle, for the book server node according to the needs monitoring recorded in the configuration file in MON processes；
Monitoring module, for the node state according to book server node described in monitoring cycle monitoring, and utilizes service monitoring
Device monitors corresponding service processes.
8. LVS systems according to claim 7, it is characterised in that the backup server includes：
Heart beat detection module, for receiving the load balancing according to predetermined period by string line using HEARTBEAT processes
Device sends running state information using udp protocol, and the load equalizer is judged when the running state information is not received
Failure.
9. LVS systems according to any one of claim 6-8, it is characterised in that the backup server includes：
Adapter module, for when the load equalizer fails, taking over the load equalizer using ARP deception measures
IP address.
10. LVS systems according to claim 9, it is characterised in that the load equalizer also includes：
Reminding module, for failing when client asks, then points out client to re-emit client's request.
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| CN201611066953.3A CN106533774A (en) | 2016-11-28 | 2016-11-28 | Method for constructing LVS system and LVS system |
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Application publication date: 20170322 |