CN104135393A - Topology maintenance method and device of distributed system - Google Patents
Topology maintenance method and device of distributed system Download PDFInfo
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- CN104135393A CN104135393A CN201410408891.4A CN201410408891A CN104135393A CN 104135393 A CN104135393 A CN 104135393A CN 201410408891 A CN201410408891 A CN 201410408891A CN 104135393 A CN104135393 A CN 104135393A
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Abstract
The invention discloses a topology maintenance method of a distributed system. The method comprises the following step that when a relay message cycle is finished and it is determined that a message representing that source device identification and target device identification are matched with a first relay information table item is received in the current relay message cycle, a first monitoring heartbeat message bound to the first relay information table item is copied and sent, wherein the relay message cycle is shorter than the ageing time of the relay information table item. On the basis of the same inventive concept, the invention further provides a topology maintenance device of the distributed system. The stability of the distributed system can be enhanced under the circumstance that link management overheads are not increased.
Description
Technical field
The application relates to communication technical field, particularly a kind of distributed system topological dimension maintaining method and device.
Background technology
Between each equipment of distributed system, by various media, interconnect, this physical channel can be Peripheral Component Interconnect standard (Peripheral Component Interconnect, PCI)/quick peripheral component interconnection (PCI Express, PCIE)/physical bus such as SPI4, also the interface such as Ethernet/serial ports, can be even wave point.But having a common ground, is all by interconnecting channel interaction control data, logically forms a virtual unit.
In distributed system, each equipment has certain independence, and most cloth formula systems are all to safeguard relation each other by sending heartbeat message between source device and target device.Take and between each equipment sources equipment and target device, send and safeguard that heartbeat message comes maintenance system topology as example in distributed system, when target device within a period of time, do not receive source device safeguard heartbeat message time, target device will think that relevant member has left.In service in reality, heartbeat message may be lost, such as the management channels between each member device in distributed system, because impacting, big data quantity cause heartbeat message to be lost, if safeguard that heartbeat message is lost to a certain degree, may cause relevant member device to be mistaken as and leave, from face, ring the stability of whole distributed system.
Summary of the invention
In view of this, the application provides a kind of distributed system topological dimension maintaining method and device, to solve heartbeat message, loses, and affects the problem of the stability of distributed system.
For solving the problems of the technologies described above, the application's technical scheme is achieved in that
A distributed system topological dimension maintaining method, described method comprises:
While receiving the first monitoring heartbeat message by distributed system connecting interface, determine local the first trunk information list item bound with this first monitoring heartbeat message that whether generated, if so, refresh the ageing time of this trunk information list item; Otherwise, source device sign and the object device identification of according to this first monitoring heartbeat message, carrying, the first trunk information list item of generation and this first monitoring heartbeat message binding, arranges ageing time;
And send the first monitoring heartbeat message receive;
The relay messages cycle then, determine when current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, to copy transmission with the first monitoring heartbeat message of this first trunk information list item binding, wherein, the described relay messages cycle is less than the ageing time of described trunk information list item.
A distributed system topological dimension protection unit, described device comprises: receiving element, determining unit, generation unit and transmitting element;
Described receiving element, for receiving message;
Described determining unit, for when described receiving element receives the first monitoring heartbeat message by distributed system connecting interface, determines local the first trunk information list item bound with this first monitoring heartbeat message that whether generated; The relay messages cycle then, determine whether current relay messages received the message that source device sign and object device identification are mated with this first trunk information list item in the cycle; , wherein, the described relay messages cycle is less than the ageing time of described trunk information list item;
Described generation unit, when determining local the first trunk information list item having generated with this first monitoring heartbeat message binding when described determining unit, refreshes the ageing time of this trunk information list item; When described determining unit is determined the first trunk information list item of local generation and this first monitoring heartbeat message binding, source device sign and the object device identification of according to this first monitoring heartbeat message, carrying, generate the first trunk information list item of binding with this first monitoring heartbeat message, ageing time is set;
Described transmitting element, the first monitoring heartbeat message receiving for sending described receiving element; When described determining unit determines that current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, will in described generation unit, copy transmission with the first monitoring heartbeat message of this first trunk information list item binding.
In sum, when the application receives the first monitoring heartbeat message by the arbitrary equipment in distributed system by distributed system connecting interface, according to the first monitoring heartbeat message, generate and upgrade the first trunk information list item, and the relay messages cycle then, and while having received the message mating with this first trunk information list item in the cycle in current relay messages, to copy transmission with the first monitoring heartbeat message of this first trunk information list item binding, thereby can, in the situation that not increasing link management expense, strengthen the stability of distributed system.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present application, trunk information list item generates renewal schematic flow sheet;
Fig. 2 is distributed system topological dimension maintaining method schematic flow sheet in the embodiment of the present application;
Fig. 3 is applied to the structural representation of the device of above-mentioned technology in the application's specific embodiment.
Embodiment
For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, scheme described in the application is described in further detail.
In distributed system, there is polytype heartbeat message, as the heartbeat message for equipment control, system topological are safeguarded heartbeat message etc.Various heartbeat messages can be used the application's the maintaining method providing to carry out topology and safeguard, if when in a distributed system, multiclass heartbeat message is all used the application's implementation to safeguard, distinguished according to the type of each heartbeat message.The application is below referred to as monitoring heartbeat message by above-mentioned each heartbeat message.A certain heartbeat message take below as example, for convenience, be referred to as the first monitoring heartbeat message.
Referring to Fig. 1, Fig. 1 is that in the embodiment of the present application, trunk information list item generates renewal schematic flow sheet.Concrete steps are:
Step 101, the arbitrary equipment in distributed system receives the first monitoring heartbeat message by distributed system connecting interface.
Distributed system connecting interface refers to interconnective interface between distributed system equipment.
Step 102, this equipment is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated, if so, execution step 103; Otherwise, execution step 104.
Step 103, this equipment refreshes the ageing time of this trunk information list item, execution step 105.
Step 104, source device sign and object device identification that this equipment carries according to this first monitoring heartbeat message, the first trunk information list item of generation and this first monitoring heartbeat message binding, arranges ageing time.
When generating the first trunk information list item, this first monitoring heartbeat message of binding storage, while needing this first monitoring heartbeat message of relaying so that follow-up, this first monitoring heartbeat message that copies storage carries out relaying.
Step 105, this equipment sends the first monitoring heartbeat message receiving.
In an example, the first monitoring heartbeat message that equipment receives by distributed system connecting interface, and send to Dispatching Unit to process this first monitoring heartbeat message, Dispatching Unit determines whether the destination address of this message is this equipment, if so, above give the main control unit of this equipment to process; Otherwise, by the another one distributed system connecting interface of this equipment, be transmitted to the miscellaneous equipment in distributed system.
The present embodiment, when specific implementation, can directly be used the first monitoring heartbeat message receiving to carry out determining whether this locality has generated the processing of the first trunk information list item of binding with this first monitoring heartbeat message in Fig. 1.Also can, when this equipment receives the first monitoring heartbeat message by distributed system connecting interface, copy described the first monitoring heartbeat message; The first monitoring heartbeat message that use copies is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated.
If the first monitoring heartbeat message after use copies is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated, when determining while not generating the first trunk information list item, generate this first trunk information list item, and the first monitoring heartbeat message that this is copied and this first trunk information list item binding storage; When determining, generated the first trunk information list item,, after refreshing this first trunk information list item, the first monitoring heartbeat message that this is copied abandons.
Processing procedure when receiving the first monitoring heartbeat message by distributed system connecting interface has above been described, below describe in detail by distributed system connecting interface and receive the message mating with the first trunk information list item, processing procedure during message that source device that message carries sign and object device identification are mated with this first trunk information list item:
When this equipment receives the data message that the source device sign of carrying and object device identification mate with this first trunk information list item, record and upgrade the message number that this first trunk information list item is corresponding.
When specific implementation, can be when a relay messages cycle start, record receives the message number with the corresponding message of this first trunk information list item, as since 0, while receiving a corresponding message, message number is added to 1; After this relay messages end cycle, the next relay messages cycle, while starting, by message data zero clearing, is restarted numeration; Certainly, also can not zero clearing, each relay messages cycle accumulative total message number, with message number corresponding to current relay messages cycle, the difference of the message number corresponding with the last relay messages cycle, determines whether current relay messages received message corresponding to this first trunk information list item in the cycle.
When receiving the first monitoring heartbeat message, can upgrade message number, can not upgrade yet.When specific implementation, when receiving the first monitoring heartbeat message, can identify this first trunk information list item so that the current relay messages cycle is then, no longer relaying this first monitoring heartbeat message.
When this equipment receives the data message mating with the first trunk information list item, be while customizing update, refresh the ageing time of this first trunk information list item.
Customization update in the application can arrange according to actual needs, as some protocol massages (between Lightweight Process, communication (LIPC) message, straddle calls message) etc.
The customization update of the application's setting is used in the refreshing of ageing time of trunk information list item, is also used in and upgrades message number corresponding to this first trunk information list item.
When the ageing time of this first trunk information list item then, this first trunk information list item of this unit deletion.
According to above describing, in the application's specific embodiment, the content of the first trunk information list item can comprise as the content in table 1.
Table 1
In table 1, it is example that the stack equipment of take has a plurality of grooves position, and object device identification and source device sign are all comprised of device number and slot number; When in this pile system, each equipment all only has a groove position, source device sign and object device identification also can only be used device number to represent.The first monitoring heartbeat message, when specific implementation, can be stored in this list item, also can store with this first trunk information list item binding, by binding information, searches.
Set sign in table 1 is used for identifying current relay messages and in the cycle, whether received the first monitoring heartbeat message, if received, by " 1 " sign, if do not receive the first monitoring heartbeat message, by " 0 " sign.
In table 1, message number and set are designated determining whether of providing in the embodiment of the present application and received the message mating with this first trunk information list item, whether receive a kind of implementation of the first monitoring heartbeat message, but are not limited to this kind of implementation.
Below in conjunction with accompanying drawing, describe the process of relaying the first monitoring heartbeat message in detail:
Referring to Fig. 2, Fig. 2 is distributed system topological dimension maintaining method schematic flow sheet in the embodiment of the present application.Concrete steps are:
Step 201, the relay messages cycle then.
The relay messages cycle is less than the ageing time of described trunk information list item.
Step 202, equipment determines whether current relay messages received the message that source device identifies and object device identification is mated with the first trunk information list item in the cycle, if so, execution step 203; Otherwise, execution step 205.
In this step, determine whether to receive source device sign and object device identification and the message that the first trunk information list item mates, comprising:
In current relay messages in the cycle, whether the message number corresponding by the first trunk information list item changes, determine whether to receive the message that source device identifies and object device identification is mated with this first trunk information list item, if message number of variations, determines and received the message that source device identifies and object device identification is mated with the first trunk information list item; Otherwise, determine and do not receive the message that source device identifies and object device identification is mated with the first trunk information list item.
Step 203, this equipment determines whether current relay messages received this first monitoring heartbeat message in the cycle, if so, execution step 205; Otherwise, execution step 204.
The judgement of this step realizes in order to reduce the extra relaying of the first monitoring heartbeat message, if received the first monitoring heartbeat message in the cycle in current relay messages, performs step 205; Otherwise, execution step 204.
When specific implementation, when receiving this first monitoring heartbeat message, at the mid-bit-identify of the first trunk information list item, received the first monitoring heartbeat message, follow-up can by the first trunk information list item whether set determine whether current relay messages received the first monitoring heartbeat message in the cycle.
Step 204, this equipment will copy transmission, process ends with the first monitoring heartbeat message of this first trunk information list item binding.
Step 205, this equipment does not send the first monitoring heartbeat message with this first trunk information list item binding.
During specific implementation, avoid frequent relaying the first monitoring heartbeat message, can during the cycle, be larger than the time that sends heartbeat message in system in configuration relay messages.
Inventive concept based on same, the application also proposes a kind of distributed system topological dimension protection unit.Referring to Fig. 3, Fig. 3 is applied to the structural representation of the device of above-mentioned technology in the application's specific embodiment.This device comprises: receiving element 301, determining unit 302, generation unit 303 and transmitting element 304;
Receiving element 301, for receiving message;
Determining unit 302, for when receiving element 301 receives the first monitoring heartbeat message by distributed system connecting interface, determines local the first trunk information list item bound with this first monitoring heartbeat message that whether generated; The relay messages cycle then, determine whether current relay messages received the message that source device sign and object device identification are mated with this first trunk information list item in the cycle; Wherein, the described relay messages cycle is less than the ageing time of described trunk information list item;
Generation unit 303, when determining local the first trunk information list item having generated with this first monitoring heartbeat message binding when determining unit 302, refreshes the ageing time of this trunk information list item; When determining unit 302 is determined the first trunk information list item of local generation and this first monitoring heartbeat message binding, source device sign and the object device identification of according to this first monitoring heartbeat message, carrying, generate the first trunk information list item of binding with this first monitoring heartbeat message, ageing time is set;
Transmitting element 304, the first monitoring heartbeat message receiving for sending receiving element 301; When determining unit 302 determines that current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, will in generation unit 303, copy transmission with the first monitoring heartbeat message of this first trunk information list item binding.
Preferably,
Determining unit 302, be further used for when determining that current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, determine whether current relay messages received this first monitoring heartbeat message in the cycle; If so, do not trigger transmitting element 304 and copy the first monitoring heartbeat message sending with this first trunk information list item binding; Otherwise, trigger transmitting element 304 and will copy transmission with the first monitoring heartbeat message of this first trunk information list item binding.
Preferably,
Generation unit 303, is further used for when receiving element 301 receives the data message that the source device sign of carrying and object device identification mate with this first trunk information list item, records and upgrades the message number that this first trunk information list item is corresponding;
Determining unit 302, specifically in current relay messages in the cycle, during message number of variations corresponding to this first trunk information list item, determines and received the message that source device sign and object device identification are mated with this first trunk information list item.
Preferably,
Generation unit 303, is further used for, when described data message is customization update, refreshing the ageing time of this first trunk information list item.
Preferably,
Generation unit 303, be further used for when the ageing time of this first trunk information list item then, delete this first trunk information list item.
Preferably,
Determining unit 302, is further used for when receiving element 301 receives the first monitoring heartbeat message by distributed system connecting interface, copies described the first monitoring heartbeat message; Whether definite this locality has generated with the first trunk information list item of this first monitoring heartbeat message binding specifically comprises: the first monitoring heartbeat message that use copies is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated.
The unit of above-described embodiment can be integrated in one, and also can separatedly dispose; A unit can be merged into, also a plurality of subelements can be further split into.
In sum, when the application receives the first monitoring heartbeat message by the arbitrary equipment in distributed system by distributed system connecting interface, according to the first monitoring heartbeat message, generate and upgrade the first trunk information list item, and the relay messages cycle then, and while having received the message mating with this first trunk information list item in the cycle in current relay messages, to copy transmission with the first monitoring heartbeat message of this first trunk information list item binding, thereby can, in the situation that not increasing link management expense, strengthen the stability of distributed system.
The technical scheme that the application provides has broad applicability, as long as the distributed system of the heartbeat message transmitting in distributed system link can be used, does not increase the expense of physical link, also supports masterslave switchover, heat to insert or extract device systems.Because automatic learning heartbeat message forwards target, be independent of platform software, do not increase the complexity of platform software, realizability is strong.Logical design is simple.
The application, when specific implementation, can realize as the software in device above, also can be integrated in FPGA, or be integrated in a core in multi-core CPU and realize, and has absolute independence.
The above, be only the application's preferred embodiment, is not intended to limit the application's protection range.All within the application's spirit and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in the application's protection range.
Claims (12)
1. a distributed system topological dimension maintaining method, is characterized in that, described method comprises:
While receiving the first monitoring heartbeat message by distributed system connecting interface, determine local the first trunk information list item bound with this first monitoring heartbeat message that whether generated, if so, refresh the ageing time of this trunk information list item; Otherwise, source device sign and the object device identification of according to this first monitoring heartbeat message, carrying, the first trunk information list item of generation and this first monitoring heartbeat message binding, arranges ageing time;
And send the first monitoring heartbeat message receive;
The relay messages cycle then, determine when current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, to copy transmission with the first monitoring heartbeat message of this first trunk information list item binding, wherein, the described relay messages cycle is less than the ageing time of described trunk information list item.
2. method according to claim 1, it is characterized in that, described definite current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle after, described the first monitoring heartbeat message with the binding of this first trunk information list item is copied to transmission before, described method further comprises:
Determine whether current relay messages received this first monitoring heartbeat message in the cycle, if so, do not send the first monitoring heartbeat message with this first trunk information list item binding; Otherwise, carry out described the first monitoring heartbeat message that will bind with this first trunk information list item and copy forwarding step.
3. method according to claim 1, is characterized in that, described method further comprises:
While receiving the data message that the source device sign of carrying and object device identification mate with this first trunk information list item, record and upgrade the message number that this first trunk information list item is corresponding;
Described the relay messages cycle then, determine that current relay messages received source device sign and object device identification and the message that this first trunk information list item mates in the cycle, comprising:
In current relay messages in the cycle, during message number of variations corresponding to this first trunk information list item, determine and received the message that source device sign and object device identification are mated with this first trunk information list item.
4. method according to claim 3, is characterized in that, when described data message is customization update, described method further comprises:
Refresh the ageing time of this first trunk information list item.
5. method according to claim 4, is characterized in that, described method further comprises:
When the ageing time of this first trunk information list item then, delete this first trunk information list item.
6. according to the method described in claim 1-5 any one, it is characterized in that, described while receiving the first monitoring heartbeat message by distributed system connecting interface, described method further comprises:
Copy described the first monitoring heartbeat message;
Whether described definite this locality has generated with the first trunk information list item of this first monitoring heartbeat message binding specifically comprises: the first monitoring heartbeat message that use copies is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated.
7. a distributed system topological dimension protection unit, is characterized in that, described device comprises: receiving element, determining unit, generation unit and transmitting element;
Described receiving element, for receiving message;
Described determining unit, for when described receiving element receives the first monitoring heartbeat message by distributed system connecting interface, determines local the first trunk information list item bound with this first monitoring heartbeat message that whether generated; The relay messages cycle then, determine whether current relay messages received the message that source device sign and object device identification are mated with this first trunk information list item in the cycle; Wherein, the described relay messages cycle is less than the ageing time of described trunk information list item;
Described generation unit, when determining local the first trunk information list item having generated with this first monitoring heartbeat message binding when described determining unit, refreshes the ageing time of this trunk information list item; When described determining unit is determined the first trunk information list item of local generation and this first monitoring heartbeat message binding, source device sign and the object device identification of according to this first monitoring heartbeat message, carrying, generate the first trunk information list item of binding with this first monitoring heartbeat message, ageing time is set;
Described transmitting element, the first monitoring heartbeat message receiving for sending described receiving element; When described determining unit determines that current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, will in described generation unit, copy transmission with the first monitoring heartbeat message of this first trunk information list item binding.
8. device according to claim 7, is characterized in that,
Described determining unit, be further used for when determining that current relay messages received the message that source device identifies and object device identification is mated with this first trunk information list item in the cycle, determine whether current relay messages received this first monitoring heartbeat message in the cycle; If so, do not trigger described transmitting element and copy the first monitoring heartbeat message sending with this first trunk information list item binding; Otherwise, trigger described transmitting element and will copy transmission with the first monitoring heartbeat message of this first trunk information list item binding.
9. device according to claim 7, is characterized in that,
Described generation unit, is further used for when described receiving element receives the data message that the source device sign of carrying and object device identification mate with this first trunk information list item, records and upgrades the message number that this first trunk information list item is corresponding;
Described determining unit, specifically in current relay messages in the cycle, during message number of variations corresponding to this first trunk information list item, determines and received the message that source device sign and object device identification are mated with this first trunk information list item.
10. device according to claim 9, is characterized in that,
Described generation unit, is further used for, when described data message is customization update, refreshing the ageing time of this first trunk information list item.
11. devices according to claim 10, is characterized in that,
Described generation unit, be further used for when the ageing time of this first trunk information list item then, delete this first trunk information list item.
12. according to the device described in claim 7-11 any one, it is characterized in that,
Described determining unit, is further used for when described receiving element receives the first monitoring heartbeat message by distributed system connecting interface, copies described the first monitoring heartbeat message; Whether definite this locality has generated with the first trunk information list item of this first monitoring heartbeat message binding specifically comprises: the first monitoring heartbeat message that use copies is determined local the first trunk information list item bound with this first monitoring heartbeat message that whether generated.
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