CN101039216A - Distributed system timing method, apparatus and system - Google Patents
Distributed system timing method, apparatus and system Download PDFInfo
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- CN101039216A CN101039216A CN 200710064935 CN200710064935A CN101039216A CN 101039216 A CN101039216 A CN 101039216A CN 200710064935 CN200710064935 CN 200710064935 CN 200710064935 A CN200710064935 A CN 200710064935A CN 101039216 A CN101039216 A CN 101039216A
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Abstract
A distributed system timing method, device and system. The method includes: setting the user state timer based on the received business request; detecting whether a certain user state timer reaches the time point when receiving the timer information transmitted by the core timer which is set according to the business character; if it does, sending the timing event message; if it does not, hanging the sending of the timing event message. The embodiment of the invention realizes the high efficient timing mechanism of the distributed system, thoroughly solves the problems that due to the failure response of the remote terminal service, the customer terminal hangs over in the current distributed system.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of distributed system timing method, Apparatus and system.
Background technology
In recent years, increasingly mature along with Internet technology, the public and commercial enterprise just enjoying at a high speed, the high-quality digital living that brings of network information transfer at a low price.But, because the continuous expansion of network size and the raising at full speed of computer hardware technique level have brought huge challenge for the implementation of traditional application software system.The application mode of traditional client/server (C/S) pattern more and more demonstrates the limitation at aspects such as operational efficiency, system network safety and system upgrade abilities.
Present distributed system has solved the interconnect problem of different hardware equipment and software systems, has strengthened the interoperability of software between network, mainly has following characteristics:
Distributed: data, processing, control do not reside in certain website, but relatively are evenly distributed on the whole the Internet;
Concurrency: different task can executed in parallel, realizes the multi-site executed in parallel by the data computation migration;
The transparency: inner realization details that distributed system is hiding many comprises physical location, concurrent control, fault processing;
Sharing: the various resource height of software, hardware are shared;
Robustness: the distribution of data, processing and control is dispersed the system failure;
Distributed system has shielded the communication details of bottom, and business module can be as using local service to use the service of far-end, and remote service can be striding course, cross-node, and this brings great convenience to business development.But in distributed systems, carry out inevitably problems such as Communications failure or network delay can occurring in the invoked procedure at striding course, cross-node, the reliability and stability of distributed system have been influenced, if such mistake is not handled, the service of client awaits remote port will occur returns, and the response message of described remote port service is lost, and will cause client can't carry out the phenomenon of hanging of subsequent operation owing to waiting for described service to return.
Summary of the invention
The embodiment of the invention provides a kind of distributed system timing method, Apparatus and system, solves the prior art distributed system because failure is returned in the remote port service, and the problem that the client that causes is hung.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of distributed system timing method, comprising:
According to the service request that receives user's attitude timer is set;
After receiving the timer message that the kernel mode timer that is provided with according to traffic performance sends, detect in user's attitude timer of described setting whether a certain user's attitude timer is arranged to point;
If have, then send the timed events notice;
If do not have, then do not send the timed events notice.
The embodiment of the invention provides a kind of kernel mode timer management device, comprising:
Idle timer queue is used to store the available core phychology timer object of reservation;
The un-activation timer queue is used for depositing the kernel mode timer of the timer object setting that utilizes described Idle state timer queue;
The active time formation, un-activation timer queue shown in being used for depositing arrives the kernel mode timer of point;
Detect thread, whether the kernel mode timer that is used for detecting according to the default time interval described un-activation timer queue arrives a little, and will arrive some message and send to the notice thread;
The notice thread is used for when described detection thread detects a little kernel mode timer, from described active time formation, take out described to the kernel mode timer of putting, and transmission timer message.
The embodiment of the invention provides a kind of user's attitude timer management device, comprising:
Free subscriber attitude timer queue is used to store the available subscribers attitude timer object of reservation;
Do not trigger user's attitude timer queue, be used to deposit, the user's attitude timer that utilizes the timer object in the described free subscriber attitude timer queue to be provided with according to traffic performance;
Message queue is used to receive the timer message that the kernel mode timer sends;
Scheduling thread, be used for obtaining described kernel mode timer message from described message queue, and after getting access to described message, detect the user's attitude timer that whether has in the described user's of triggering attitude timer queue to point, have to the point user's attitude timer the time, dispatch described user's attitude timer, and send corresponding timed events notice.
The embodiment of the invention provides the timing system in a kind of distributed system, comprising:
The kernel mode timer that the thread of a plurality of realization bottoms drives; And be used for kernel mode timer management device that described a plurality of kernel mode timers are managed and are provided with;
A plurality of by described kernel mode timer triggering, realize user's attitude timer that higher layer message drives; And be used for user's attitude timer management device that described a plurality of user's attitude timers are managed and are provided with.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention is provided with the design of a plurality of kernel mode timers and the layering of a plurality of user's attitude timer by employing, realized distributed system timing mechanism efficiently, under the situation that does not influence systematic function, enlarge the quantity of timer, and business module can be according to the characteristic customization timer of business, strengthened the practicality of timer, improved the system availability energy, thoroughly solved the prior art distributed system because failure is returned in the remote port service, and the problem that the client that causes is hung.
Description of drawings
Fig. 1 is that the doubly linked list of embodiment of the invention timer queue concerns schematic diagram;
Fig. 2 is provided with kernel mode timer flow chart for the embodiment of the invention;
Fig. 3 is that embodiment of the invention un-activation timer queue inserts the timer schematic diagram;
Fig. 4 detects thread testing process figure for the embodiment of the invention;
Fig. 5 is embodiment of the invention notice thread work flow chart;
Fig. 6 is an embodiment of the invention initialization user attitude timer flow chart;
Fig. 7 is provided with user's attitude timer flow chart for the embodiment of the invention;
Fig. 8 is an embodiment of the invention scheduling thread scheduling flow;
Fig. 9 is an embodiment of the invention method overview flow chart.
Embodiment
Timing system in the distributed system that the embodiment of the invention provides adopts the design that a plurality of kernel mode timers and the layering of a plurality of user's attitude timer are set.The timing system that present embodiment provides comprises: a plurality of kernel mode timers, a plurality of user's attitude timer, a kernel mode timer management device, user's attitude timer management device.
Described kernel mode timer is the timer that is used to realize a spot of bottom thread driving, by the unified management of described kernel mode timer management device.
Described user's attitude timer is triggered by described kernel mode timer, is used to realize the timer of a large amount of higher layer message drivings, by the unified management of described user's attitude timer management device.
A kind of embodiment of described kernel mode timer management device comprises: idle timer queue, active time formation, un-activation timer queue, detect thread, and the notice thread.
Described idle timer queue is used to store the available core phychology timer object of reservation;
Described un-activation timer queue is used for depositing the kernel mode timer of the timer object setting that utilizes described Idle state timer queue;
Described active time formation, un-activation timer queue shown in being used for depositing arrives the kernel mode timer of point.
Described idle timer queue, active time formation, and the un-activation timer queue all exist in the doubly linked list mode, as shown in Figure 1, adopt described doubly linked list mode can directly find the forerunner's node and the descendant node of this node from node itself;
Described detection thread, whether the kernel mode timer that is used for detecting according to the default time interval described un-activation timer queue arrives a little, and will arrive some message and send to the notice thread;
Described notice thread is used for when described detection thread detects a little kernel mode timer, takes out described kernel mode timer to point from described active time formation, and transmission timer message.Described timing notice sends to user's attitude timer management device with the form of timer message earlier, arrives business module afterwards, and detailed process is seen below continuous the introduction.
The embodiment of the invention provides a kind of implementation method of kernel mode timer management device, comprising:
At first, a kernel mode timer is set, from the Idle state timer queue, takes out a timer object, after the filling relevant information, be put in the unactivated timer queue by the kernel mode timer management device according to service needed; The detection thread that the kernel mode timer management device is controlled in the described kernel mode timer detects in the described un-activation timer queue whether timer is arranged to point, if have, then the kernel mode timer management device moves on to described kernel mode timer to point in the active time formation; From described active time formation, take out timer message by described notice thread, send regularly notice.
Wherein the kernel mode timer management device be provided with the kernel mode timer and with described kernel mode timer be put in the un-activation timer queue concrete grammar as shown in Figure 2, comprising:
Step 1: a kernel mode timer is set according to service needed;
Step 2: the kernel mode timer management device is taken out a timer object from Idle state timer queue head, and fills the relevant information that described business module is provided with kernel mode timer needs; Comprise the regularly information such as number of times, the time interval of filling;
Step 3: the kernel mode timer that the kernel mode timer management device is finished above-mentioned setting is placed in the un-activation timer queue;
All kernel mode timers in the described un-activation timer queue all sort according to the sequencing of distance current time, apart from the current time near more come the front, so when inserting new timer, need be inserted into according to time order and function in the corresponding position, as shown in Figure 3;
Step 4: the kernel mode timer id information of above-mentioned setting is returned to business module.
Described detection thread testing process comprises as shown in Figure 4:
Step 1: detect thread traverses un-activation timer queue;
Step 2: find last to arrive a little kernel mode timer, all timers before this timer are inserted into the active time rear of queue;
As long as find last to arrive a little timer, all timers have before all arrived a little, and all timers afterwards all do not arrive a little;
Step 3: detect timeslice of thread dormancy, repeat above-mentioned steps 1, step 2 afterwards.
The size of described timeslice is the precision of timer, can set as required.
Described notice thread sends regularly notifies flow process as shown in Figure 5, comprising:
Step 1: notice thread traverses active time formation; Described active time queue for storing to the point the kernel mode timer;
Step 2: the time set according to described timer sends regularly notice.
A kind of embodiment of described user's attitude timer management device comprises: free subscriber attitude timer queue, do not trigger user's attitude timer queue, message queue, scheduling thread.
Described free subscriber attitude timer queue comprises the available subscribers attitude timer object of reservation;
Described user's attitude timer queue that do not trigger is used to deposit user's attitude timer that business module is provided with according to traffic performance.
Described message queue is used to receive the timer message that the kernel mode timer sends;
Described scheduling thread, be used for obtaining described timer message from message queue, and after getting access to described message, detect the user's attitude timer that whether has in the described user's of triggering attitude timer queue to point, have to the point user's attitude timer the time, dispatch described user's attitude timer, send corresponding timed events notice to business module.
The embodiment of the invention provides a kind of implementation method of user's attitude timer management device, comprising:
Business module is provided with user's attitude timer management device according to the traffic performance needs, and user's attitude timer of described setting comprises; The maximum regularly quantity of supporting (corresponding) and the characteristics such as precision of timer with the length of described free subscriber attitude timer queue; From free subscriber attitude timer queue, take out a timer object by described user's attitude timer management device, behind the interpolation corresponding business characteristic information, put it to and do not trigger in user's attitude timer queue; In described user's attitude timer management device process is set, user's attitude timer management device can be provided with a kernel mode timer according to the needs of business and (finish setting by user's attitude timer management device notice kernel mode timer management device, its setting up procedure is referring to the description of above-mentioned kernel mode timer), the continuous transmission timer message of described kernel mode timer is given described user's attitude timer queue.Whenever receive a service request at business module and can notify described user's attitude timer management device that user's attitude timer is set, described user's attitude timer management device receives after described kernel mode timer sends to timer message in the message queue; The scheduling thread of user's attitude timer management device obtains described timer message from described message queue, and detect in the described user's of triggering attitude timer queue whether timer is arranged to point, if have, then dispatch corresponding timer, send corresponding timed events notice to business module.
The described flow process that user's attitude timer management device is set comprises as shown in Figure 6:
Step 1: business module is provided with user's attitude timer management device according to service needed; User's attitude timer management device of described setting comprises: the maximum regularly quantity (corresponding with the length of described free subscriber attitude timer queue) of support and the characteristics such as precision of timer;
Step 2: user's attitude timer management device is provided with a kernel mode timer according to the needs of business, and the characteristic of described user's attitude timer management device is passed to described kernel mode timer;
Step 3: described kernel mode timer can be according to the continuous transmission timer message of the method for the foregoing description with the preassigned time interval.
Business module whenever receives a service request, and user's attitude timer management device will be provided with user's attitude timer, and the flow process that described user's attitude timer management device is provided with user's attitude timer comprises as shown in Figure 7:
Step 1: business module receives service request needs user's attitude timer management device that user's attitude timer of specified characteristic is set; Described specified characteristic comprises: the maximum regularly quantity (corresponding with the length of described free subscriber attitude timer queue) of support and the precision of timer;
Step 2: user's attitude timer management device is taken out a timer object from free subscriber attitude timer queue, and fills described characteristic information;
Step 3: user's attitude timer of described setting is inserted into the appropriate location of not triggering user's attitude timer queue;
Described all user's attitude timers that do not trigger in user's attitude timer queue all sort according to the sequencing of distance current time, apart from the current time near more come the front, so when inserting new timer object, need be inserted into according to time order and function in the corresponding position;
Step 4: user's attitude timer id information of above-mentioned setting is returned to business module.
Described scheduling thread scheduling flow comprises as shown in Figure 8:
Step 1: scheduling thread constantly takes out kernel mode timer message from message queue;
Step 2: message of every taking-up, just traversal does not trigger the user's attitude timer that whether has in user's attitude timer queue to point;
Step 3:, then send the timed events notice to business module if having to user's attitude timer of point.
By above-mentioned narration as can be known, described kernel mode timer is the timer of bottom, and described user's attitude timer is high-rise timer, is the timer that is provided with according to concrete traffic performance.Therefore, embodiment of the invention kernel mode timer cooperates with user's attitude timer, and total implementation procedure of realization timing mechanism comprises as shown in Figure 9:
Step 1: user's attitude timer management device is set according to traffic performance;
Concrete method to set up is as described in the embodiment of front;
Step 2: when described business module starts, described user's attitude timer management device uses the kernel mode timer management device that kernel mode timer (concrete method to set up as front embodiment as described in) is set, and the continuous transmission timer message of the kernel mode timer of described setting is given described user's attitude timer management device;
The kernel mode timer quantity that described kernel mode timer management device is managed is that operating system itself has, and each professional employed kernel mode timer can be selected as required;
Step 3: business module whenever receives a service request, described user's attitude timer management device will be taken out a timer object from described free subscriber attitude timer queue, user's attitude timer (method to set up can as above-mentioned embodiment) is set is positioned over and does not trigger in user's attitude timer queue;
Step 4: whether after described user's attitude timer management device receives described kernel mode timer message at every turn, detecting described the triggering has a certain user's attitude timer to point in the timer queue;
If have, then execution in step 5, promptly send timed events and are notified to business module;
If do not have, then execution in step 6, promptly do not send the timed events notice.
The described user's attitude of the frequency ratio timer of described kernel mode timer transmission timer message sends the frequency height of timing notice.
Illustrate that with a concrete example kernel mode timer cooperates realization system process regularly with user's attitude timer below.
(being above-mentioned business module) needs each second and handles 1000 requests of chargeing to suppose that an accounting module is arranged, each charges and asks all once far call, 1000 far calls of 1000 timer monitoring so just need be arranged simultaneously, if far call not success in 10 seconds, even if failure;
Scheme hypothesis according to foregoing description has a maximum can use the kernel mode timer management device of 5 kernel mode timers, and the precision of each timer is 1 second, and promptly the minimum timing time is 1 second; Regularly monitor procedure comprises the steps:
1. accounting module need be provided with user's attitude timer management device, requires the multipotency of this user's attitude timer management device to use 1000 user's attitude timers, and the fixed time interval of each user's attitude timer is 10 seconds;
2. when accounting module starts, its user's attitude timer management device uses the kernel mode timer management device that the timer of kernel mode is set, if only need be provided with one, its fixed time interval is 5 seconds, and the kernel mode timer will send a timer message for user's attitude timer management device every 5 seconds like this;
3. accounting module is received the request of chargeing, will notify user's attitude timer management device that the timer of user's attitude is set, promptly from the free subscriber attitude timer queue of user's attitude timer management device, take out a timer object, and put it to and do not trigger in user's attitude timer queue, the time-out time of preserving in this user's attitude timer is: current time+10 second;
4. described user's attitude timer receives that the timer of kernel mode is after the timer message of transmission in 5 seconds, will travel through the not triggering user attitude timer queue of user's attitude timer management device, if find to have user's attitude timer to point, just show that a far call is arranged is overtime, the charging request of its correspondence has just been failed.
In sum, the embodiment of the invention is provided with the design of a plurality of kernel mode timers and the layering of a plurality of user's attitude timer by employing, realized distributed system timing mechanism efficiently, under the situation that does not influence systematic function, enlarge the quantity of timer, and business module can be according to the characteristic customization timer of business, strengthened the practicality of timer, improved the system availability energy, thoroughly solved the prior art distributed system owing to wait for the failure of remote port service response, and the problem that the client that causes is hung.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (14)
1, a kind of distributed system timing method is characterized in that, comprising:
According to the service request that receives user's attitude timer is set;
After receiving the timer message that the kernel mode timer that is provided with according to traffic performance sends, detect in user's attitude timer of described setting whether a certain user's attitude timer is arranged to point;
If have, then send the timed events notice;
If do not have, then do not send the timed events notice.
2, the method for claim 1 is characterized in that, by the user's attitude timer management device according to the traffic performance setting described user's attitude timer is set.
3, method as claimed in claim 2 is characterized in that, described user's attitude timer management device according to the traffic performance setting comprises: the maximum regularly quantity of support and the precision characteristic of timer.
4, method as claimed in claim 2, it is characterized in that, described user's attitude timer management device comprises: free subscriber attitude timer queue, do not trigger user's attitude timer queue, message queue, scheduling thread, its method that user's attitude timer is set comprises:
From free subscriber attitude timer queue, take out a timer object, the precision of described user's attitude timer and the quantity of maximum timer are set according to the characteristic of business;
User's attitude timer of described setting is positioned over do not trigger in user's attitude timer queue;
Return described user's attitude timer ID.
Whether 5, method as claimed in claim 4 is characterized in that, have a certain user's attitude timer to comprise to the method for point in user's attitude timer of the described setting of described detection:
Message queue in user's attitude timer management device receives the timer message that described kernel mode timer sends;
Described scheduling thread obtains described timer message from described message queue after, detect and do not trigger the user's attitude timer that whether has in user's attitude timer queue to point.
6, the method for claim 1 is characterized in that, according to traffic performance described kernel mode timer is set by the kernel mode timer management device.
7, method as claimed in claim 6, it is characterized in that, described kernel mode timer management device comprises: idle timer queue, un-activation timer queue, active time formation, detection thread, notice thread, and its method that kernel mode timer is set comprises:
From idle timer queue, take out a timer object, and fill relevant information;
The timer of described setting is positioned in the un-activation timer queue;
Return described timer ID.
8, method as claimed in claim 7 is characterized in that, the relevant information of described filling comprises:
Timing number of times, the time interval.
9, method as claimed in claim 7 is characterized in that, the method for described kernel mode timer transmission timer message comprises:
Whether the kernel mode timer is arranged to point in the every interval of the described detection thread Preset Time traversal un-activation timer queue,, then described all kernel mode timers before the kernel mode timer of point are moved in the active time formation if having;
The notice thread takes out described kernel mode timer to point from described activity queue, and transmission timer message.
10, method as claimed in claim 9 is characterized in that, described detection thread is inserted into described kernel mode timer to point in the described active time formation according to distance current time sequencing.
11, a kind of kernel mode timer management device is characterized in that, comprising:
Idle timer queue is used to store the available core phychology timer object of reservation;
The un-activation timer queue is used for depositing the kernel mode timer of the timer object setting that utilizes described Idle state timer queue;
The active time formation, un-activation timer queue shown in being used for depositing arrives the kernel mode timer of point;
Detect thread, whether the kernel mode timer that is used for detecting according to the default time interval described un-activation timer queue arrives a little, and will arrive some message and send to the notice thread;
The notice thread is used for when described detection thread detects a little kernel mode timer, from described active time formation, take out described to the kernel mode timer of putting, and transmission timer message.
12, kernel mode timer management device as claimed in claim 11 is characterized in that, described idle timer queue, active time formation, and the un-activation timer queue exist in the doubly linked list mode.
13, a kind of user's attitude timer management device is characterized in that, comprising:
Free subscriber attitude timer queue is used to store the available subscribers attitude timer object of reservation;
Do not trigger user's attitude timer queue, be used to deposit, the user's attitude timer that utilizes the timer object in the described free subscriber attitude timer queue to be provided with according to traffic performance;
Message queue is used to receive the timer message that the kernel mode timer sends;
Scheduling thread, be used for obtaining described kernel mode timer message from described message queue, and after getting access to described message, detect the user's attitude timer that whether has in the described user's of triggering attitude timer queue to point, have to the point user's attitude timer the time, dispatch described user's attitude timer, and send corresponding timed events notice.
14, the timing system in a kind of distributed system is characterized in that, comprising:
The kernel mode timer that the thread of a plurality of realization bottoms drives; And be used for kernel mode timer management device that described a plurality of kernel mode timers are managed and are provided with;
A plurality of by described kernel mode timer triggering, realize user's attitude timer that higher layer message drives; And be used for user's attitude timer management device that described a plurality of user's attitude timers are managed and are provided with.
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| CNB2007100649356A CN100479390C (en) | 2007-03-29 | 2007-03-29 | Distributed system timing method and system |
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| CNB2007100649356A CN100479390C (en) | 2007-03-29 | 2007-03-29 | Distributed system timing method and system |
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| CN101039216A true CN101039216A (en) | 2007-09-19 |
| CN100479390C CN100479390C (en) | 2009-04-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547212B (en) * | 2008-03-29 | 2012-09-05 | 华为技术有限公司 | Method and system for scheduling distributed objects |
| CN104301134A (en) * | 2014-08-27 | 2015-01-21 | 烽火通信科技股份有限公司 | Management method and system based on massive timers in software design |
| WO2015154625A1 (en) * | 2014-09-05 | 2015-10-15 | 中兴通讯股份有限公司 | Timing event processing method, storage method, execution method and corresponding device |
| CN108255515A (en) * | 2018-01-17 | 2018-07-06 | 广州汇智通信技术有限公司 | A kind of method and apparatus for realizing timer service |
| CN113744436A (en) * | 2021-09-02 | 2021-12-03 | 中广核永寿新能源有限公司 | Internet of things fan cabin door safety anti-error control method based on two electric tickets management |
-
2007
- 2007-03-29 CN CNB2007100649356A patent/CN100479390C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547212B (en) * | 2008-03-29 | 2012-09-05 | 华为技术有限公司 | Method and system for scheduling distributed objects |
| CN104301134A (en) * | 2014-08-27 | 2015-01-21 | 烽火通信科技股份有限公司 | Management method and system based on massive timers in software design |
| CN104301134B (en) * | 2014-08-27 | 2017-12-12 | 烽火通信科技股份有限公司 | Management method and system based on massive timer in Software for Design |
| WO2015154625A1 (en) * | 2014-09-05 | 2015-10-15 | 中兴通讯股份有限公司 | Timing event processing method, storage method, execution method and corresponding device |
| CN108255515A (en) * | 2018-01-17 | 2018-07-06 | 广州汇智通信技术有限公司 | A kind of method and apparatus for realizing timer service |
| CN113744436A (en) * | 2021-09-02 | 2021-12-03 | 中广核永寿新能源有限公司 | Internet of things fan cabin door safety anti-error control method based on two electric tickets management |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100479390C (en) | 2009-04-15 |
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