CN106559497A - A kind of distributed caching method of WEB server based on daemon thread - Google Patents
A kind of distributed caching method of WEB server based on daemon thread Download PDFInfo
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- CN106559497A CN106559497A CN201611110871.4A CN201611110871A CN106559497A CN 106559497 A CN106559497 A CN 106559497A CN 201611110871 A CN201611110871 A CN 201611110871A CN 106559497 A CN106559497 A CN 106559497A
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- Prior art keywords
- thread
- sentry
- web server
- caching
- data
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Classifications
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- 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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/52—Program synchronisation; Mutual exclusion, e.g. by means of semaphores
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5683—Storage of data provided by user terminals, i.e. reverse caching
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention discloses a kind of distributed caching method of WEB server based on daemon thread, is related to WEB server technology, in WEB server operation system aspect, proposes the sentry's thread based on daemon thread principle, is cached by sentry's thread advancing updating；When request thread finds that caching does not have data, each thread removes refresh counter, after renewal, obtains the thread that enumerator is 1, is arranged to sentry's thread, and other common threads then wait sentry's thread.The present invention has saved WEB server cost by the sentry's thread based on daemon thread, advancing updating caching, it is to avoid the service process performance for concurrently causing system delay, enhancing WEB server of big flow.
Description
Technical field
The present invention relates to WEB server technology, specifically a kind of WEB server is based on the distributed slow of daemon thread
Deposit method.
Background technology
Internet technology development at present is increasingly mature, and the every aspect of people's life has been popularized in shopping online store.On the net
There are service traffics low ebb and peak in store, and this has been resulted on shopping online store Flow Experience and WEB server hardware performance
Contradiction.In the hardware cluster design architecture of store, WEB service application server constitutes store FEP, in service traffics
When underestimating, pressure is less, and pressure is very big at service traffics peak.
Shopping based on B/S frameworks or distribution website, during promoting, certain commodity are carried out with the second kills competition for orders activity,
Service traffics can be so made to increase decades of times than usual.The computation model of business is that FEP WEB server concurrently goes to rear end to obtain
Data are calculated during treating excess syndrome, result is then combined with, according to user's sequence information to commodity modification attribute etc..It is in this process, big to flow
That what is measured concurrently causes system delay.If according to general pressure design store hardware structure, the system in peak traffic can be caused
Process performance is low, if designed according to peak, causes cost to waste again.
The content of the invention
Demand and weak point of the present invention for the development of current technology, there is provided a kind of WEB server is based on daemon thread
Distributed caching method.
A kind of distributed caching method of the WEB server of the present invention based on daemon thread, solves above-mentioned technical problem
Using technical scheme it is as follows：The system that automated back-up changes file in a kind of K-UX operating systems, in WEB server industry
Business system level, proposes the sentry's thread based on daemon thread principle, is cached by sentry's thread advancing updating；Work as request thread
It was found that when caching does not have data, each thread removes refresh counter, after renewal, the thread that enumerator is 1 is obtained, is arranged to the whistle
Soldier's thread, other common threads then wait sentry's thread.
Preferably, sentry's thread realizes that with atomic counters a data have two key, atomic counters key and
Data buffer storage key, the two cache-time are consistent, and the atomic counters key out-of-service time is more early than data buffer storage key.
Preferably, when the common thread does not get data, spin+sleep has individual time-out time, if time-out,
Request Back end data is selected according to business scenario or processing failure is returned.
Preferably, in first request scene, it is sentry's thread to choose that earliest request, after this thread directly goes
End obtains result of calculation and updates caching；Other common threads then spin+sleep wait until sentry's thread update caching after,
Till data being taken from caching.
Preferably, in cache invalidation scene, sentry's thread is revived in advance, goes to rear end to obtain and calculates data and update
Caching；Other common threads never perceive caching and have failed, and can take newest caching always.
A kind of WEB server of the present invention is had compared with prior art based on the distributed caching method of daemon thread
Beneficial effect be：The present invention by the sentry's thread based on daemon thread, advancing updating caching, it is to avoid big flow is concurrently led
System delay is caused, the service process performance of WEB server is enhanced, can be good at tackling the pressure of service traffics peak period；
WEB server is avoided to arrange according to during peak simultaneously, the phenomenon for causing cost to waste；Present inventive concept is novel, easy to operate, section
About WEB server cost.
Description of the drawings
Accompanying drawing 1 is first request scene process figure；
Accompanying drawing 2 is cache invalidation schematic diagram of a scenario.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, to this
A kind of distributed caching method of the bright WEB server based on daemon thread is further described.
The present invention proposes a kind of distributed caching method of WEB server based on daemon thread, in WEB server business system
System aspect carries out the distributed caching based on daemon thread, by the sentry's thread based on daemon thread principle, directly goes to rear end
Obtain result of calculation advancing updating caching, it is to avoid big flow concurrent and cause system delay.
Embodiment：
Distributed caching method of the WEB server described in the present embodiment based on daemon thread, in WEB server business system layer
Face, proposes the sentry's thread based on daemon thread principle, is cached by sentry's thread advancing updating；When request thread finds to cache
During without data, each thread removes refresh counter, after renewal, obtains the thread that enumerator is 1, is arranged to sentry's thread,
Other common threads then wait sentry's thread.
Sentry's thread realizes that with atomic counters a data have two key, atomic counters key and data to delay
Key is deposited, the two cache-time is consistent, but the enumerator key out-of-service times are more early than data buffer storage key, to ensure that sentry updates
After caching, do not arrived by other thread awares.
When common thread does not get data, spin+sleep has individual time-out time, prevents fortuitous event；If overtime
, request Back end data is selected according to business scenario or processing failure is returned.
Accompanying drawing 1 is first request scene process figure, as shown in Figure 1, in first request scene, chooses earliest that
For sentry's thread, this thread will not go read buffer for individual request, directly go to rear end to obtain result of calculation and update caching；Other are general
Logical thread then spin+sleep wait until sentry's thread update caching after, till data being taken from caching.
Sentry's thread is responsible for caching and is never failed.Accompanying drawing 2 is cache invalidation schematic diagram of a scenario；As shown in Figure 2, exist
In cache invalidation scene, sentry's thread is revived in advance, goes to rear end to obtain and calculates data and update caching；Other common threads are basic
Caching will not be perceived to have failed, newest caching can be taken always.
For example：The 12 of the cache invalidation time of certain data key:00:00, if sentry's thread is 11:59:Revive when 55
Wake up, ask rear end and in 11:59:Data cached renewal is completed when 57, then subsequent request thread aware is less than data more
Newly, non-expired data can be got always.
Above-mentioned specific embodiment be only the present invention concrete case, the present invention scope of patent protection include but is not limited to
Above-mentioned specific embodiment, any person of an ordinary skill in the technical field that meet claims of the present invention and any
The appropriate change or replacement done to which, should all fall into the scope of patent protection of the present invention.
Claims (5)
1. the system that automated back-up changes file in a kind of K-UX operating systems, it is characterised in that in WEB server business system
System aspect, proposes the sentry's thread based on daemon thread principle, is cached by sentry's thread advancing updating；When request thread finds
When caching does not have data, each thread removes refresh counter, after renewal, obtains the thread that enumerator is 1, is arranged to cordon
Journey, other common threads then wait sentry's thread.
2. distributed caching method of a kind of WEB server based on daemon thread according to claim 1, it is characterised in that
Sentry's thread realizes that with atomic counters a data have two key, atomic counters key and a data buffer storage key, two
Person's cache-time is consistent, and the atomic counters key out-of-service time is more early than data buffer storage key.
3. distributed caching method of a kind of WEB server based on daemon thread according to claim 2, it is characterised in that
When the common thread does not get data, spin+sleep has individual time-out time, if time-out, is selected according to business scenario
Request Back end data returns processing failure.
4. distributed caching method of a kind of WEB server based on daemon thread according to claim 3, it is characterised in that
In first request scene, it is sentry's thread to choose earliest that request, and this thread directly goes to rear end to obtain result of calculation
And update caching；Other common threads then spin+sleep wait until sentry's thread update caching after, number can be taken from caching
According to till.
5. distributed caching method of a kind of WEB server based on daemon thread according to claim 3, it is characterised in that
In cache invalidation scene, sentry's thread is revived in advance, goes to rear end to obtain and calculates data and update caching；Other ordinary lines
Journey never perceives caching and has failed, and can take newest caching always.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108536839A (en) * | 2018-04-13 | 2018-09-14 | 郑州云海信息技术有限公司 | Database data deriving method, device, equipment and computer readable storage medium |
| CN109040183A (en) * | 2018-06-27 | 2018-12-18 | 郑州云海信息技术有限公司 | Node information acquisition method, device, equipment and computer readable storage medium |
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| US7991962B2 (en) * | 2007-12-10 | 2011-08-02 | International Business Machines Corporation | System and method of using threads and thread-local storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108536839A (en) * | 2018-04-13 | 2018-09-14 | 郑州云海信息技术有限公司 | Database data deriving method, device, equipment and computer readable storage medium |
| CN109040183A (en) * | 2018-06-27 | 2018-12-18 | 郑州云海信息技术有限公司 | Node information acquisition method, device, equipment and computer readable storage medium |
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Application publication date: 20170405 |