CN104980314B - A kind of clustered node monitoring polling mechanism based on dynamic priority queue - Google Patents
A kind of clustered node monitoring polling mechanism based on dynamic priority queue Download PDFInfo
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- CN104980314B CN104980314B CN201510313132.4A CN201510313132A CN104980314B CN 104980314 B CN104980314 B CN 104980314B CN 201510313132 A CN201510313132 A CN 201510313132A CN 104980314 B CN104980314 B CN 104980314B
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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
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication
- G05B19/4186—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM] characterised by the network communication by protocol, e.g. MAP, TOP
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
- G06F13/362—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control
- G06F13/366—Handling requests for interconnection or transfer for access to common bus or bus system with centralised access control using a centralised polling arbiter
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- 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
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
- H04L43/103—Active monitoring, e.g. heartbeat, ping or trace-route with adaptive polling, i.e. dynamically adapting the polling rate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention belongs to clustered node monitoring technology field, there is provided a kind of seismic industry cluster device active monitoring system and polling mechanism, including：Central monitor system and cluster；Cluster includes multiple clustered nodes, and each clustered node is connected by communication link with central monitor system.Clustered node in cluster is divided into two queues, each node polls order in queue is distributed step by step according to priority dynamic；Dynamic queue's priority threshold value is set；Each node of static queue has par；In a polling cycle, central monitor system is polled according to node priority, and node priority reduces after poll；If poll finishes, poll static queue；If the non-poll of dynamic queue one time, directly terminates in poll time.The present invention ensures that during coming earthquake the information such as seismic monitoring waveform can be obtained correctly, in time, farthest reduces earthquake disaster influence, communication link guarantee is provided for seismic monitoring data transfer.
Description
Technical field
The invention belongs to clustered node monitoring technology field, more particularly to a kind of active monitoring of seismic industry cluster device
System and the clustered node monitoring polling mechanism based on dynamic priority queue.
Background technology
National each province and city seismological department all deploys Seismic monitoring equipment in respective area under one's jurisdiction, including data acquisition unit, it is electric
Visualizer, Magnetmeter and server, router etc., these equipment are communicated by different links with central server, structure
The cluster big into one, in cluster the operation and maintenance of each node device turn into the particularly important composition portion of seismic monitoring cause
Point, and the whether normal of equipment state determines that can seismic monitoring data normally, in time, accurately pass to center and carry out earthquake
Analysis, monitoring, forecast.Divided according to the functional attributes of seismic industry monitoring device cluster interior nodes, monitored node is divided into platform
Point monitoring device, application server, the class of route exchange device three, wherein platform point monitoring device, route exchange device only need to monitor
IP address, the break-make situation of fixed port, typically instructed using ping, for application server, it is necessary to monitoring server
System, while the information for needing to monitor is distinguished according to the OS Type of server, application type.Influence Windows
The Fundamentals of systematic function include CPU usage, memory usage, system disk occupancy, and linux system bottom architecture is not
Windows is same as, for CPU, the service condition of internal memory and Windows systems on the contrary, Linux is to maximally utilize hardware resource
For final goal, and for CPU, the average being calculated as in certain time of memory usage, centring system is to these nodes
Monitoring need to take into full account these factors.For Partial key application server, such as ORACLE database servers, user
More concerned about information such as example state, process status, table space utilization rates, these letters need to be considered when cluster monitoring system is disposed
Cease the demand of monitoring.
Problems faced is that first, all cluster interior nodes are equal, cause important node to be ignored at present.Earthquake
Platform point in industry（Especially near fracture belt）The important function of the nodes such as real-time watch device, core database is self-evident, nothing
Method and other ordinary nodes are equal, it is necessary to set higher priority；Secondly, common clustered node long term state is normal, root
According to the conclusion of the classical trend analysis algorithm such as linear regression algorithm, Exponential Backoff Algorithm, the priority of these nodes should reduce.
Therefore, a kind of seismic industry cluster device active monitoring system and poll are badly in need of in clustered node monitoring technology field
Mechanism, Mobile state and static poll are entered to clustered node according to importance respectively, carried out classification processing again to dynamic queue, protected
Demonstrate,prove importance queue can Priority polling, be more suitable for earthquake Industry；Can correctly, in time during guarantee coming earthquake
The information such as seismic monitoring waveform are obtained, farthest reducing earthquake disaster influences；Realization is accurately positioned to failure, is reduced
Bandwidth consumption, business personnel's operating efficiency is greatly improved, reduce node failure rate, communication chain is provided for seismic monitoring data transfer
Road ensures.
The content of the invention
The invention provides a kind of seismic industry cluster device active monitoring system and polling mechanism, in Principles of Microcomputers
In, poll is the mode how a kind of CPU decision-makings provide peripheral equipment service, also known as " programme-control input/output ".Its concept
It is that inquiry is sent by CPU timings, sequentially inquires whether each peripheral equipment needs its service, has to give and service, service is tied
Next periphery is inquired again after beam, is then constantly gone round and begun again.In Principle of Communication, poll is one that base station is terminal distribution bandwidth
Kind handling process, this distribution can be directed to single terminal or one group of terminal.Connected for single terminal with one group of terminal
Bandwidth is distributed, actually defines bandwidth request competition mechanism, this distribution is not to use a single message, but up
A series of distribution mechanisms included in link mapping message.In network monitoring field, poll is that central server is right according to demand
Monitored node is periodically detected, and obtains node status information.Technical scheme is as follows：
A kind of seismic industry cluster device active monitoring system includes：Central monitor system and cluster；Cluster includes more
Individual clustered node, each clustered node are connected by communication link with central monitor system.
Preferably, in a kind of above-mentioned seismic industry cluster device active monitoring system, central monitor system uses
Linux server, in Linux server Cacti is installed and increased income the network management software, and it is soft in Cacti network managements of increasing income
Polling cycle is set in part, clustered node is monitored.
Preferably, in a kind of above-mentioned seismic industry cluster device active monitoring system, pacify on each clustered node
Agent services are filled, row information is entered with Linux server by NMP, communication link and exchanged, in each polling cycle
Polling mechanism that is interior, being given according to NMP, is polled to each clustered node state in cluster, monitors.
Preferably, in a kind of above-mentioned seismic industry cluster device active monitoring system, NMP is simple
Network Management Protocols SNMP, the snmp protocol are made up of the standard of one group of network management, include application layer protocol, a database
Model and one group of resource object.
A kind of clustered node monitoring polling mechanism based on dynamic priority queue, comprises the following steps：
Step 1, clustered node in cluster is divided into two queues, is respectively：Dynamic queue and static queue；
Step 2, dynamic queue is initialized with certain length, node priority highest comes head of the queue, minimum
It is queued at the end of queue, each node polls order in queue is distributed step by step according to priority dynamic；
Step 3, dynamic queue's priority threshold value is set；
Step 4, static queue contain all nodes in cluster, and each node has par；
Step 5, in a polling cycle, central monitor system is carried out according to dynamic queue's interior nodes priority first
Poll, node priority reduces after poll；If dynamic queue's poll finishes in poll time, poll static queue, weight
Multiple above-mentioned steps are until polling cycle terminates；If the non-poll of dynamic queue one time, poll node priority in poll time
Whole queue waits next poll after adjustment, static queue not poll, directly terminates.
Preferably, in a kind of above-mentioned clustered node monitoring polling mechanism based on dynamic priority queue, step 5
Concretely comprise the following steps：
A, when a polling cycle starts, judge whether polling cycle terminates first；If it has not ended, b is then performed,
If terminated, dynamic queue's point priority+1, directly terminate；
B, poll dynamic queue；
C, judges whether head of the queue row node priority is less than threshold value, if less than the threshold value, then d is performed, conversely, then head of the queue
Row node priority -1, insert in dynamic queue, perform e；
D, poll static queue；
E, after collector node status information, the step of repeat step a to e, until polling cycle terminates, dynamic queue's point is excellent
Untill first level+1.
Preferably, in a kind of above-mentioned clustered node monitoring polling mechanism based on dynamic priority queue, collect in step c
Group node is by the insertion of Insertion Sorting Algorithm by half dynamic queue.
Preferably, in a kind of above-mentioned clustered node monitoring polling mechanism based on dynamic priority queue, in step d
Static queue is initialized according to FCFS algorithm, and newly-increased node is sequentially inserted into tail of the queue, then starts poll static queue.
Beneficial effects of the present invention：
1st, the present invention is accurate to failure according to the characteristic of earthquake industrial clusters interior nodes, design deployment central monitor system
Positioning, reduce bandwidth consumption and have very great help, greatly improve business personnel's operating efficiency, reduce node failure rate, supervised for earthquake
Survey data transfer and communication link guarantee is provided.
2nd, the present invention uses active monitor mode, the design Agent module in clustered node, leads to central monitor system
Cross NMP to be communicated, the poll detection time cycle is set in central monitor system, it is main in a polling cycle
The queue of trend clustered node sends sense command, services acquisition node status information by Agent in clustered node, passes through network pipe
Reason agreement feeds back to central monitor system, thus central monitor system judges clustered node state.Central monitor system can
Polling mechanism and alarming mechanism are rationally set according to self performance, communication link can be reduced while system reliability is ensured
Expense and own load.
3rd, the present invention classifies to clustered node in earthquake industrial clusters, according to the difference of node priority, creates respectively
Static queue and dynamic queue are built, is more suitable for earthquake Industry, poll more science, accurate.
4th, the present invention is polled detection according to priority to the node in two queues, is born not increasing central server
In the case of load, the wrap count of important node in seismic industry cluster is greatly increased, ensures the operation of important node in cluster
State is normal, can obtain the information such as seismic monitoring waveform correctly, in time during so as to ensure coming earthquake, farthest drop
Low earthquake disaster influences.
5th, the present invention is a kind of seismic industry cluster device active monitoring system, and the CPU of Linux server is utilized
The performance impact very little of rate, memory usage, memory space utilization rate performance etc., can be ignored, and not influence Linux services
Normal monitoring of the device to each node in cluster.
6th, the present invention is carried out using the insertion algorithm by half that time complexity is relatively low, stability is higher to dynamic queue
Sequence, classification, improve ageing and stability.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of structural representation of seismic industry cluster device active monitoring system.
Fig. 2 is the flow chart that a kind of clustered node based on dynamic priority queue monitors polling mechanism.
Fig. 3 is the flow chart of step 5 of the present invention.
Embodiment
In order that measure, creation characteristic, reached purpose and effect that the technology of the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Fig. 1 is a kind of structural representation of seismic industry cluster device active monitoring system.
As shown in figure 1, a kind of seismic industry cluster device active monitoring system includes：Central monitor system 1 and cluster
2；Cluster 2 includes multiple clustered nodes, and each clustered node is connected by communication link with central monitor system.
In the present embodiment, central monitor system uses Linux server, and Cacti is installed in Linux server and is increased income net
Network management software, and increased income in Cacti and polling cycle is set in the network management software, clustered node is monitored.
In the present embodiment, on each clustered node install Agent service, by NMP, communication link with
Linux server enters row information exchange, in each polling cycle, according to the polling mechanism that NMP is given, to collection
Each clustered node state is polled, monitored in group.
In the present embodiment, NMP is Simple Network Management Protocol SNMP (Simple Network
Management Protocol), the snmp protocol is made up of the standard of one group of network management, includes an application layer protocol
（application layer protocol）, database model（database schema）With one group of resource object.The agreement
NMS is supported, whether has monitoring the equipment being connected on network and any causes situation about paying close attention in management.Most
Eventually, Linux server obtains the status information of each node in cluster.
Fig. 2 is the flow chart that a kind of clustered node based on dynamic priority queue monitors polling mechanism.
As shown in Fig. 2 a kind of clustered node monitoring polling mechanism based on dynamic priority queue, comprises the following steps：
Step 1, clustered node in cluster is divided into two queues, is respectively：Dynamic queue and static queue；
Step 2, dynamic queue is initialized with certain length, node priority highest comes head of the queue, minimum
It is queued at the end of queue, each node polls order in queue is distributed step by step according to priority dynamic；
Step 3, dynamic queue's priority threshold value is set；
Step 4, static queue contain all nodes in cluster, and each node has par；
Step 5, in a polling cycle, central monitor system is carried out according to dynamic queue's interior nodes priority first
Poll, node priority reduces after poll；If dynamic queue's poll finishes in poll time, poll static queue, weight
Multiple above-mentioned steps are until polling cycle terminates；If the non-poll of dynamic queue one time, poll node priority in poll time
Whole queue waits next poll after adjustment, static queue not poll, directly terminates.
Fig. 3 is the flow chart of step 5 of the present invention.
As shown in figure 3, in this implementation, step 5 concretely comprises the following steps：
A, when a polling cycle starts, judge whether polling cycle terminates first；If it has not ended, b is then performed,
If terminated, dynamic queue's point priority+1, directly terminate；
B, poll dynamic queue；
C, judges whether head of the queue row node priority is less than threshold value, if less than the threshold value, then d is performed, conversely, then head of the queue
Row node priority -1, insert in dynamic queue, perform e；
D, poll static queue；
E, after collector node status information, the step of repeat step a to e, until polling cycle terminates, dynamic queue's point is excellent
Untill first level+1.
In the present embodiment, clustered node is by the insertion of Insertion Sorting Algorithm by half dynamic queue in step c.
In the present embodiment, the static queue in step d is initialized according to FCFS algorithm, and newly-increased node is sequentially inserted into
Tail of the queue, then start poll static queue.
The present invention in order to prevent node initializing priority it is too low cause for a long time can not poll situation, after node polls
Priority subtracts one, until being less than threshold value, reinitializes the node priority.It is simultaneously guarantee poll fairness, dynamic queue
Priority threshold value is set, when head of the queue node priority is less than the threshold value, not to dynamic queue's poll, direct poll static state team
Arrange, at the end of each poll time, all node priorities of dynamic queue add one, prevent head of the queue node priority to be consistently lower than threshold
Value and can not poll dynamic queue situation occur.
The present invention is arranged dynamic queue using the insertion algorithm by half that time complexity is relatively low, stability is higher
Sequence, classification, improve ageing and stability.
The present invention is accurately fixed to failure according to the characteristic of earthquake industrial clusters interior nodes, design deployment central monitor system
Position, reduce bandwidth consumption and have very great help, greatly improve business personnel's operating efficiency, reduce node failure rate, be seismic monitoring
Data transfer provides communication link guarantee.
The present invention uses active monitor mode, the design Agent module in clustered node, passes through with central monitor system
NMP is communicated, and the poll detection time cycle is set in central monitor system, in a polling cycle actively
Sense command is sent to clustered node queue, acquisition node status information is serviced by Agent in clustered node, passes through network management
Agreement feeds back to central monitor system, thus central monitor system judges clustered node state.Central monitor system being capable of root
Polling mechanism and alarming mechanism are rationally set according to self performance, can reduce communication link while system reliability is ensured opens
Pin and own load.
The present invention classifies to clustered node in earthquake industrial clusters, according to the difference of node priority, is respectively created
Static queue and dynamic queue, are more suitable for earthquake Industry, poll more science, accurate.
The present invention is polled detection according to priority to the node in two queues, is not increasing central server load
In the case of, the wrap count of important node in seismic industry cluster is greatly increased, ensures the operation shape of important node in cluster
State is normal, can obtain the information such as seismic monitoring waveform correctly, in time during so as to ensure coming earthquake, farthest reduces
Earthquake disaster influences.
The present invention is a kind of seismic industry cluster device active monitoring system, cpu busy percentage to Linux server,
The performance impact very little of memory usage, memory space utilization rate performance etc., can be ignored, do not influence Linux server
Normal monitoring to each node in cluster.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (4)
1. a kind of clustered node monitoring polling mechanism based on dynamic priority queue, comprises the following steps：
Step 1, clustered node in cluster is divided into two queues, is respectively：Dynamic queue and static queue；
Step 2, dynamic queue is initialized with certain length, node priority highest comes head of the queue, and minimum comes
Tail of the queue, each node polls order in queue are distributed step by step according to priority dynamic；
Step 3, dynamic queue's priority threshold value is set；
Step 4, static queue contain all nodes in cluster, and each node has par；
Step 5, in a polling cycle, central monitor system is polled according to dynamic queue's interior nodes priority first,
Node priority reduces after poll；If dynamic queue's poll finishes in poll time, poll static queue, repeat above-mentioned
Step is until polling cycle terminates；If the non-poll of dynamic queue one time in poll time, after the adjustment of poll node priority
Whole queue waits next poll, static queue not poll, directly terminates.
2. a kind of clustered node monitoring polling mechanism based on dynamic priority queue according to claim 1, its feature
It is, the step 5 concretely comprises the following steps：
A, when a polling cycle starts, judge whether polling cycle terminates first；If it has not ended, b is then performed, if
Terminate, then dynamic queue's point priority+1, directly terminates；
B, poll dynamic queue；
C, judges whether head of the queue row node priority is less than threshold value, if less than the threshold value, then performs d, conversely, then head of the queue row section
Point priority -1, is inserted in dynamic queue, performs e；
D, poll static queue；
E, after collector node status information, the step of repeat step a to e, until polling cycle terminates, dynamic queue's point priority
Untill+1.
3. a kind of clustered node monitoring polling mechanism based on dynamic priority queue according to claim 2, its feature
It is, clustered node is by the insertion of Insertion Sorting Algorithm by half dynamic queue in the step c.
4. a kind of clustered node monitoring polling mechanism based on dynamic priority queue according to claim 2, its feature
It is, the static queue in the step d is initialized according to FCFS algorithm, and newly-increased node is sequentially inserted into tail of the queue, then opens
Beginning poll static queue.
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| CN107453882B (en) * | 2016-05-30 | 2020-06-30 | 北京京东尚科信息技术有限公司 | Alarm information aggregation system and method in cluster |
| CN106899515B (en) * | 2016-08-12 | 2020-06-16 | 阿里巴巴集团控股有限公司 | Method and device for selecting monitoring service and service monitoring system |
| CN106911505B (en) * | 2017-02-27 | 2020-08-21 | 苏州浪潮智能科技有限公司 | Polling optimization method and device based on monitoring plug-in state |
| CN107766207A (en) * | 2017-10-20 | 2018-03-06 | 中国人民财产保险股份有限公司 | Distributed automatic monitoring method, system, computer-readable recording medium and terminal device |
| CN109714369B (en) * | 2019-02-28 | 2021-08-13 | 深圳智链物联科技有限公司 | Communication method of distributed charging pile communication system, charging pile and networking device |
| CN111901214B (en) * | 2020-07-22 | 2022-03-18 | 积成电子股份有限公司 | Power monitoring serial communication method and system based on optimized polling mechanism |
| CN112600694B (en) * | 2020-12-04 | 2022-11-15 | 国网电力科学研究院有限公司 | Internet of things safety monitoring and management method, system and medium |
| CN113589360B (en) * | 2021-07-27 | 2022-09-16 | 中国科学院地质与地球物理研究所 | Router based on field broadband seismograph observation station and data transmission method |
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