CN108769098A - A kind of method, apparatus and system for establishing distributed memory system network connection - Google Patents
A kind of method, apparatus and system for establishing distributed memory system network connection Download PDFInfo
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- CN108769098A CN108769098A CN201810288027.3A CN201810288027A CN108769098A CN 108769098 A CN108769098 A CN 108769098A CN 201810288027 A CN201810288027 A CN 201810288027A CN 108769098 A CN108769098 A CN 108769098A
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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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0662—Virtualisation aspects
- G06F3/0664—Virtualisation aspects at device level, e.g. emulation of a storage device or system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/067—Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
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Abstract
The embodiment of the present application discloses a kind of method, apparatus and system for establishing distributed memory system network connection, the method includes：When the purpose OSD of the source OSD object storage devices of source storage server and purpose storage server needs to disconnect virtual link, it sets the connection status of the virtual link between the source OSD and the purpose OSD to halted state；When the source OSD and the purpose OSD need to establish virtual link, judge that the virtual link between the source OSD and the purpose OSD whether there is；If the virtual link between the source OSD and the purpose OSD exists, set just in connection status the connection status of the virtual link between the source OSD and the purpose OSD to.In the embodiment of the present application, the use state of virtual link is adjusted accordingly according to actual demand, it is not necessary to repeat to create and delete virtual link, realize the multiplexing of virtual link, establishment and the delete operation of virtual link can be greatly decreased, improve efficiency.
Description
Technical field
This application involves field of computer technology, more particularly to a kind of side establishing distributed memory system network connection
Method, apparatus and system.
Background technology
In distributed memory system, multiple storage servers are generally included, include multiple in each storage server
OSD (Object-based Storage Device, object storage device), multiple OSD in the same storage server are shared
The same TCP (Transmission Control Protocol, transmission control protocol) connects, in different storage servers
OSD is communicated by the virtual link abstracted in TCP connection.
In order to realize that it is accurate orderly that the information of the transmitting-receivings of multiple OSD in the same storage server can accomplish, this is virtual
Connection indicates the shared TCP network connections pointer of bottom, the source addresses OSD for connecting both ends and the addresses purpose OSD, connection
The information such as ID, connection status.In the prior art, after the separated virtual link of the OSD in different storage servers, this is virtual
Connection is deleted accordingly；When needing communication between the OSD in different storage servers, then create virtual link.
Since distributed memory system in the process of running establish and disconnect very frequent, establishment and deletion repeatedly by OSD connections
Virtual link can increase system performance expense.
Invention content
A kind of method, apparatus and system for establishing distributed memory system network connection is provided in the embodiment of the present application,
Advantageously account for creating and delete repeatedly in the prior art the problem of data block of virtual link can increase system performance expense.
In a first aspect, the embodiment of the present application provides a kind of method of vertical distributed memory system network connection, including：
When the source OSD object storage devices of source storage server and the purpose OSD of purpose storage server need to disconnect void
When quasi- connection, it sets the connection status of the virtual link between the source OSD and the purpose OSD to halted state；
When the source OSD and the purpose OSD need to establish virtual link, the source OSD and the purpose OSD are judged
Between virtual link whether there is；
If the virtual link between the source OSD and the purpose OSD exists, by the source OSD and the purpose OSD
Between the connection status of virtual link be set as just in connection status.
Optionally, the method further includes：
If the connection status of the corresponding virtual links of OSD of the source storage server is completely in halted state, delete
Except the corresponding all virtual links of the OSD of the source storage server.
Optionally, when the source OSD and purpose OSD needs to establish virtual link, judge the source OSD and institute
It states after the virtual link between purpose OSD whether there is, further includes：
If the virtual link between the source OSD and the purpose OSD is not present, the source OSD and the mesh are created
OSD between virtual link；
The connection status of the virtual link source OSD and the purpose OSD between is set just in connection status to.
Optionally, the method further includes：
Safeguard that a halted state corresponding with the source storage server connects number, when the source storage server is corresponding
The connection status of any virtual link is from just when connection status becomes halted state, the halted state connection number adds 1, works as institute
Stating the connection status of the corresponding any virtual link of source storage server is become from halted state just in connection status, described to stop
Only state connection number subtracts 1；
If the connection status of the corresponding virtual links of OSD of source storage server is completely in halted state,
The corresponding all virtual links of OSD of the source storage server are then deleted, including：If halted state connection number with it is described
The corresponding virtual link quantity of storage server is equal, then the OSD for deleting the source storage server corresponding all virtually connects
It connects.
Second aspect, the embodiment of the present application provide a kind of device for establishing distributed memory system network connection, including：
Setup module, the purpose for source OSD object storage devices and purpose storage server when source storage server
When OSD needs to disconnect virtual link, set the connection status of the virtual link between the source OSD and the purpose OSD to
Halted state；
Judgment module judges the source OSD and institute when the source OSD and purpose OSD needs to establish virtual link
The virtual link stated between purpose OSD whether there is；
The setup module, if the virtual link being additionally operable between the source OSD and the purpose OSD exists, by institute
The connection status for stating the virtual link between source OSD and the purpose OSD is set as just in connection status.
Optionally, described device further includes：
Removing module, if the connection status of the corresponding virtual links of OSD for the source storage server is completely in
Halted state then deletes the corresponding all virtual links of OSD of the source storage server.
Optionally, described device further includes：
Creation module, if the virtual link between the source OSD and the purpose OSD is not present, described in establishment
Virtual link between source OSD and the purpose OSD；
The setup module is additionally operable to set the connection status of the virtual link between the source OSD and the purpose OSD
It is set to just in connection status.
Optionally, described device further includes：
Maintenance module, for safeguarding that a halted state corresponding with the source storage server connects number, when the source is deposited
The connection status of the corresponding any virtual link of server is stored up from just when connection status becomes halted state, the halted state
Connection number adds 1, when the connection status of the corresponding any virtual link of the source storage server is become connecting from halted state
When connecing state, the halted state connection number subtracts 1；
The removing module, if being connected specifically for the halted state, number is corresponding with the storage server virtually to be connected
It connects that quantity is equal, then deletes the corresponding all virtual links of OSD of the source storage server.
The third aspect, the embodiment of the present application provide a kind of distributed memory system, including：
Processor；
The memory executed instruction for storing processor；
Wherein, the processor is configured as executing above-mentioned first aspect any one of them method.
In the embodiment of the present application, source OSD and purpose OSD only needs to establish virtual link, Zhi Hougen in the initial state
Adjust the use state of virtual link accordingly according to actual demand, it is not necessary to repeat to create and delete virtual link, realize virtual
Establishment and the delete operation of virtual link can be greatly decreased in the multiplexing of connection, improve efficiency.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of schematic diagram of a scenario of distributed memory system provided by the embodiments of the present application；
Fig. 2 is a kind of method flow signal for establishing distributed memory system network connection provided by the embodiments of the present application
Figure；
Fig. 3 is a kind of apparatus structure signal for establishing distributed memory system network connection provided by the embodiments of the present application
Figure.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
Fig. 1 is a kind of schematic diagram of a scenario of distributed memory system provided by the embodiments of the present application, is shown in FIG. 13
A storage server 101~103, wherein include multiple OSD objects storage facilities in each storage server, in Fig. 1,
Two OSD, such as the OSD1011 in storage server 101 and OSD1012 are illustrated only on each storage server, are
Schematical explanation, should not be as the limitation of the embodiment of the present application protection domain.
By TCP network connections between storage server, in order to realize that multiple OSD in the same storage server are received and dispatched
Information can accomplish it is accurate orderly, when the OSD in a certain storage server is communicated with the OSD in other storage servers
When, it needs to establish a virtual link on the TCP network connections, which indicates the shared TCP networks of bottom
The information such as the pointer of connection, the source addresses OSD for connecting both ends and the addresses purpose OSD, connection ID, connection status.Wherein, same
OSD in a storage server shares the same TCP network connections.Herein, virtual link can be interpreted as TCP network connections
On abstract one connection, still needed when receiving and sending messages by TCP network connections, virtual link is equivalent to TCP nets
One agency of network connection, a TCP network connection can have multiple agencies, that is, correspond to multiple virtual links.
In traditional scheme, after the separated virtual link of the OSD in different storage servers, the virtual link is corresponding
Deletion；When needing communication between the OSD in different storage servers, then create corresponding virtual link.Due to distribution
OSD connections foundation and disconnection are very frequent in the process of running for storage system, and system can be increased by creating and delete repeatedly virtual link
Performance cost.
Based on this, the embodiment of the present application provides a kind of method for establishing distributed memory system network connection, and Fig. 2 is this
Apply for a kind of method flow schematic diagram for establishing distributed memory system network connection that embodiment provides, as shown in Fig. 2, it is led
Include the following steps.
Step S201：When the source OSD object storage devices of source storage server and the purpose OSD of purpose storage server need
When disconnecting virtual link, set the connection status of the virtual link between the source OSD and the purpose OSD to stop shape
State.
Step S202：When the source OSD and the purpose OSD need to establish virtual link, the source OSD and institute are judged
The virtual link stated between purpose OSD whether there is.
Step S203：If the virtual link between the source OSD and the purpose OSD exists, by the source OSD and institute
The connection status for stating the virtual link between purpose OSD is set as just in connection status.
In the embodiment of the present application, the data structure for storing virtual link is equipped in system, by virtual link pair
The information such as the source addresses OSD of the TCP network connections pointer, connection both ends answered and the addresses purpose OSD, connection ID, connection status
It is stored in the data structure.
When source OSD and purpose OSD need to establish virtual link, is searched in above-mentioned data structure first, that is, judge source
Whether the virtual link between OSD and the purpose OSD has existed, and virtually connects accordingly if being found in data structure
It connects, then sets just in connection status the connection status of the virtual link to so that source OSD and purpose OSD establishes virtual link.
If correspondingly, being searched less than corresponding virtual link in data structure, i.e. virtual link between source OSD and purpose OSD is not
In the presence of then needing newly-built virtual link between source OSD and purpose OSD, and the virtual link is stored in above-mentioned data structure
In, subsequently to use.
That is, in the embodiment of the present application, source OSD and purpose OSD only need to establish in the initial state and virtually connect
It connects, adjusts the use state of virtual link accordingly according to actual demand later, it is not necessary to it repeats to create and delete virtual link, it is real
Show the multiplexing of virtual link, establishment and the delete operation of virtual link can be greatly decreased, improves efficiency.
Below using the OSD1011 in Fig. 1 as source OSD, OSD1022 OSD as a purpose carry out above-mentioned technical proposal detailed
It describes in detail bright.For example, at the first moment, created virtual link between OSD1011 and OSD1022, OSD1011 and
OSD1022 is in virtual link state, if desired disconnects the virtual link between OSD1011 and OSD1022, then by OSD1011
The connection status of virtual link between OSD1022 is set as halted state, and indirect deletes the virtual link.?
Two moment judged when needing to re-establish virtual link between OSD1011 and OSD1022 between OSD1011 and OSD1022
Virtual link whether there is, since at the first moment, the virtual link between OSD1011 and OSD1022 just has existed,
Therefore, it is not necessarily to newly-built virtual link between OSD1011 and OSD1022 at this time, it is only necessary to will be between OSD1011 and OSD1022
The connection status of virtual link be set as just in connection status.
If using conventional solution, the delete operation for executing a virtual link is needed at above-mentioned first moment,
Above-mentioned second moment needs to execute the establishment operation of a virtual link, and only needs adjustment virtual twice in the embodiment of the present application
Establishment and the delete operation of virtual link is greatly decreased in the connection status of connection, saves system performance expense.
In a kind of alternative embodiment, if at the connection status of the corresponding virtual links of the OSD of source storage server is whole
In halted state, then the corresponding all virtual links of OSD of the source storage server are deleted.It should be pointed out that same
All OSD in storage server share the same TCP network connections, then the corresponding virtual links of the OSD of storage server are
Share the virtual link of the same TCP network connections.When the connection status for the virtual link for sharing the same TCP network connections is equal
When in halted state, this is shared into the virtual link of the same TCP network connections while being deleted.
In the specific implementation, a halted state connection number corresponding with the source storage server can be safeguarded in systems
StopedNum (initial value 0), when the connection status of the corresponding any virtual link of the source storage server is by connecting
When state becomes halted state, the halted state connection number adds 1, when the corresponding any virtual link of the source storage server
Connection status become just in connection status from halted state, halted state connection number subtracts 1；
If it is equal that the halted state connects number virtual link quantity corresponding with the storage server, illustrate the source
The connection status of the corresponding virtual links of OSD of storage server is completely in halted state, then deletes the source storage service
The corresponding all virtual links of OSD of device.
On the basis of above method embodiment, distributed memory system network connection is established present invention also provides a kind of
Device, Fig. 3 be a kind of apparatus structure schematic diagram for establishing distributed memory system network connection provided by the embodiments of the present application,
As shown in figure 3, it is mainly comprised the following modules.
Setup module 301, the mesh for source OSD object storage devices and purpose storage server when source storage server
OSD when needing to disconnect virtual link, the connection status of the virtual link between the source OSD and the purpose OSD is arranged
For halted state.
Judgment module 302 judges the source OSD when the source OSD and purpose OSD needs to establish virtual link
Virtual link between the purpose OSD whether there is；
The setup module 301 will if the virtual link being additionally operable between the source OSD and the purpose OSD exists
The connection status of virtual link between the source OSD and the purpose OSD is set as just in connection status.
In the embodiment of the present application, source OSD and purpose OSD only needs to establish virtual link, Zhi Hougen in the initial state
Adjust the use state of virtual link accordingly according to actual demand, it is not necessary to repeat to create and delete virtual link, realize virtual
Establishment and the delete operation of virtual link can be greatly decreased in the multiplexing of connection, improve efficiency.
In a kind of alternative embodiment, described device further includes removing module, if the OSD for the source storage server
The connection status of corresponding virtual link is completely in halted state, then deletes the corresponding institutes of OSD of the source storage server
There is virtual link.
In a kind of alternative embodiment, described device further includes creation module, if for the source OSD and the purpose
Virtual link between OSD is not present, then creates the virtual link between the source OSD and the purpose OSD；
The setup module is additionally operable to set the connection status of the virtual link between the source OSD and the purpose OSD
It is set to just in connection status.
In a kind of alternative embodiment, described device further includes maintenance module, for safeguarding one and the source storage service
The corresponding halted state of device connects number, when the connection status of the corresponding any virtual link of the source storage server is by connecting
When the state of connecing becomes halted state, halted state connection number adds 1, any virtually connects when the source storage server is corresponding
The connection status connect is become from halted state just in connection status, and the halted state connection number subtracts 1；
The removing module, if being connected specifically for the halted state, number is corresponding with the storage server virtually to be connected
It connects that quantity is equal, then deletes the corresponding all virtual links of OSD of the source storage server.
On the basis of the above embodiments, the embodiment of the present application also provides a kind of distributed memory system, the distributions
Storage system includes two or more storage servers, and the storage server is equipped with processor and memory.
Wherein, the processor is the control centre of storage device, is set using various interfaces and the entire electronics of connection
Standby various pieces by running or execute the software program and/or module that are stored in memory, and are called and are stored in
Data in reservoir, to execute the various functions and/or processing data of electronic equipment.The processor can be by integrated circuit
(Integrated Circuit, abbreviation IC) is formed, such as the IC that can be encapsulated by single is formed, can also be by more of connection
The encapsulation IC of identical function or different function and form.For example, processor can only include central processing unit (Central
Processing Unit, abbreviation CPU).In the application embodiment, CPU can be single operation core, can also include more
Arithmetic core.
The memory, for storing executing instruction for processor, memory can be by any kind of volatibility or non-
Volatile storage devices or combination thereof realize that, such as static RAM (SRAM), electrically erasable is only
Reading memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM) are read-only to deposit
Reservoir (ROM), magnetic memory, flash memory, disk or CD.
When executing instruction in memory is executed by processor so that distributed memory system is able to carry out the above method
Step some or all of in embodiment.
In the specific implementation, the application also provides a kind of computer storage media, wherein the computer storage media can store
There is program, step that some or all of which may include when executing in each embodiment provided by the present application.The storage is situated between
Matter can be magnetic disc, CD, read-only memory (English：Read-only memory, referred to as：ROM) or random storage is remembered
Body (English：Random access memory, referred to as：RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present application can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present application substantially or
Say that the part that contributes to existing technology can be expressed in the form of software products, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that computer equipment (can be with
Be personal computer, server either network equipment etc.) execute certain part institutes of each embodiment of the application or embodiment
The method stated.
The same or similar parts between the embodiments can be referred to each other in this specification.Implement especially for terminal
For example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring in embodiment of the method
Explanation.
Above-described the application embodiment does not constitute the restriction to the application protection domain.
Claims (9)
1. a kind of method for establishing distributed memory system network connection, which is characterized in that including：
Virtually connect when the source OSD object storage devices of source storage server need to disconnect with the purpose OSD of purpose storage server
When connecing, it sets the connection status of the virtual link between the source OSD and the purpose OSD to halted state；
When the source OSD and the purpose OSD need to establish virtual link, judge between the source OSD and the purpose OSD
Virtual link whether there is；
If the virtual link between the source OSD and the purpose OSD exists, will be between the source OSD and the purpose OSD
The connection status of virtual link be set as just in connection status.
2. according to the method described in claim 1, it is characterized in that, further including：
If the connection status of the corresponding virtual links of OSD of the source storage server is completely in halted state, institute is deleted
State the corresponding all virtual links of OSD of source storage server.
3. method according to claim 1 or 2, which is characterized in that built when the source OSD and purpose OSD needs
When vertical virtual link, after judging that the virtual link between the source OSD and the purpose OSD whether there is, further include：
If the virtual link between the source OSD and the purpose OSD is not present, the source OSD and the purpose OSD are created
Between virtual link；
The connection status of the virtual link source OSD and the purpose OSD between is set just in connection status to.
4. according to the method described in claim 2, it is characterized in that, further including：
Safeguard that a halted state corresponding with the source storage server connects number, when the source storage server is corresponding any
The connection status of virtual link is from just when connection status becomes halted state, the halted state connection number adds 1, when the source
The connection status of the corresponding any virtual link of storage server is become from halted state just in connection status, the stopping shape
State connection number subtracts 1；
If the connection status of the corresponding virtual links of OSD of source storage server is completely in halted state, delete
Except the corresponding all virtual links of the OSD of the source storage server, including：If the halted state connection number and the storage
The corresponding virtual link quantity of server is equal, then deletes the corresponding all virtual links of OSD of the source storage server.
5. a kind of device for establishing distributed memory system network connection, which is characterized in that including：
Setup module, the purpose OSD for source OSD object storage devices and purpose storage server when source storage server need to
When disconnecting virtual link, set the connection status of the virtual link between the source OSD and the purpose OSD to stop shape
State；
Judgment module judges the source OSD and the mesh when the source OSD and purpose OSD needs to establish virtual link
OSD between virtual link whether there is；
The setup module, if the virtual link being additionally operable between the source OSD and the purpose OSD exists, by the source
The connection status of virtual link between OSD and the purpose OSD is set as just in connection status.
6. device according to claim 5, which is characterized in that further include：
Removing module, if the connection status of the corresponding virtual links of OSD for the source storage server is completely in stopping
State then deletes the corresponding all virtual links of OSD of the source storage server.
7. device according to claim 5 or 6, which is characterized in that further include：
Creation module creates the source OSD if the virtual link between the source OSD and the purpose OSD is not present
With the virtual link between the purpose OSD；
The setup module is additionally operable to set the connection status of the virtual link between the source OSD and the purpose OSD to
Just in connection status.
8. device according to claim 6, which is characterized in that further include：
Maintenance module takes for safeguarding that a halted state corresponding with the source storage server connects number when the source stores
The connection status of the corresponding any virtual link of business device is from just when connection status becomes halted state, the halted state connects
Number plus 1, when the connection status of the corresponding any virtual link of the source storage server is become from halted state connecting shape
When state, the halted state connection number subtracts 1；
The removing module, if specifically for halted state connection number virtual link number corresponding with the storage server
It measures equal, then deletes the corresponding all virtual links of OSD of the source storage server.
9. a kind of distributed memory system, which is characterized in that including：
Processor；
The memory executed instruction for storing processor；
Wherein, the processor is configured as perform claim and requires 1-4 any one of them methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810288027.3A CN108769098B (en) | 2018-04-03 | 2018-04-03 | Method, device and system for establishing network connection of distributed storage system |
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| CN201810288027.3A CN108769098B (en) | 2018-04-03 | 2018-04-03 | Method, device and system for establishing network connection of distributed storage system |
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| US20040004415A1 (en) * | 2002-01-27 | 2004-01-08 | Achim Melching | Object storage device and climate-controlled cabinet |
| CN101719136A (en) * | 2009-11-18 | 2010-06-02 | 上海众恒信息产业有限公司 | Management system for state-variable objects |
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| CN108769098B (en) | 2021-04-13 |
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