CN106776151A - SAMBA cluster TDB data-base recordings backup method, apparatus and system - Google Patents
SAMBA cluster TDB data-base recordings backup method, apparatus and system Download PDFInfo
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- CN106776151A CN106776151A CN201710026812.7A CN201710026812A CN106776151A CN 106776151 A CN106776151 A CN 106776151A CN 201710026812 A CN201710026812 A CN 201710026812A CN 106776151 A CN106776151 A CN 106776151A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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Abstract
The invention belongs to the shared cluster ctdb software fields of SAMBA, and in particular to a kind of SAMBA clusters TDB data-base recordings backup method, apparatus and system, mainly include the following steps that:Then smbd sends REQ_BACKUP and asks to ctdb, and by-product recording data, the response to be backed up such as;After local ctdb receives treatment request, the online distal end ctdb of random selection one sends REQ_BACKUP requests, attached data record;Distal end ctdb treatment requests, in stored record to local data base.The present invention carries out extra a data backup to the record stored on dmaster, adds BACKUP type of messages, ensures can all have a node to store newest data record under what circumstances by the message transmission between process;Can simultaneously there are two parts of newest record datas in cluster, in follow-up any node failure, cluster can return to newest record, client namely carry out file read-write from newest position, the generation read and write or connect again and disconnect and reconnect scene is prevented, the read-write efficiency and continuous availability of cluster is improved.
Description
Technical field
The invention belongs to the shared cluster ctdb software fields of SAMBA, and in particular to a kind of SAMBA clusters TDB databases note
Record backup method, apparatus and system.
Background technology
SAMBA is the freeware that SMB agreements are realized on Linux and unix system, by server and client
Program is constituted.SMB(Server Messages Block, information service block)It is a kind of shared file and printing on a local area network
A kind of communication protocol of machine, it is the shared clothes of the resource such as offer file and printer between the different computers in LAN
Business.SMB agreements are client/server type agreements, and client computer can be with the shared file system in access server by the agreement
System, printer and other resources.By setting " NetBIOS over TCP/IP " such that Samba not only can be with LAN master
Machine shares resource, moreover it is possible to share resource with global computer.
CTDB is that a kind of Cluster Database of lightweight is realized, many application clusters, current CTDB can be realized based on it
SAMBA is supported, GPFS is supported in NFS, HTTPD, VSFTPD, ISCSI, WINBIND application, cluster shared data storage,
GFS(2),Glusterfs, Luster, OCFS(2).CTDB is not in itself HA solutions, but is mutually tied with cluster file system
Close, it can provide a kind of HA Cluster Solutions of simple and effective.
In official's ctdb versions newest at present(4.5.0)In, client access SAMBA cluster share directories when, its
Middle smbd processes can first obtain the relative recording of the operation, and newest record is stored in dmaster(Local ctdb)On node,
Smbd passes through lmaster(Distal end ctdb)Node asks dmaster node state-of-the-art record data, and dmaster nodes receive record
During request can return recording data, when the dmaster nodes machine lmaster that delays cannot notify dmaster, also cannot just ensure smbd
Newest data record can be got, it is impossible to ensure the correct recovery of company-data and the continuous availability of influence cluster.
The content of the invention
The present invention exists when the dmaster nodes machine lmaster that delays cannot notify dmaster, also with regard to nothing for prior art
Method ensures that smbd can get newest data record, it is impossible to which the correct recovery and influence the continuous of cluster for ensureing company-data can
The problems such as property used, propose a kind of SAMBA clusters TDB data-base recordings backup method, apparatus and system.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
The present invention provides a kind of SAMBA clusters TDB data-base recording backup methods, including:First node is obtained to SAMBA collection
Record data when group is operated;Record data is sent to one or more other nodes;Other nodes receive record
Record storage is carried out after data;First node is returned to by whether other nodes store successful result;First node receives it
After his node storage successful result, stored record.
Further, before first node obtains record data when being operated to SAMBA clusters, also include:First
Process obtains record data when being operated to SAMBA clusters;Record data is sent to first node.
Further, the record data is transmitted by backup messages.
Preferably, record data is sent to one or more other nodes, including:First node randomly chooses one
Node is as Section Point and sends record data.
Further, first node is returned to by whether other nodes store successful result, including:Section Point is carried out
Record storage success, then carry out next step;Section Point carries out that record storage is unsuccessful, then first node is randomly choosed again
One node sends record data, until selected node carries out record backing up successfully, carries out next step.
Further, after first node receives other nodes storage successful result, stored record, including:First node
Second process receives other nodes and after record data stores successful result, result is sent to the first process;First enters
Record data storage is simultaneously arrived first node by journey treatment operation.
The present invention also provides a kind of SAMBA clusters TDB data-base recording back-up devices, including:Record data obtains mould
Block, for obtaining record data when being operated to SAMBA clusters;First sending module, for the first process and first segment
Record data between point sends or returns;Second sending module, sends or returns for the record data between node;Storage mould
Block, for record data to be stored to node.
Further, also include:Determination module, set in node, for judge other nodes record data whether
Store successfully.
Preferably, also include:Selecting module, the node of record data will be sent for randomly choosing one or more.
The present invention also provides a kind of SAMBA clusters TDB data-base recording standby systems, including the first process and multiple sections
Point, wherein, multiple nodes belong to a SAMBA cluster altogether, and the second process, memory cell, selection list are included in each node
Unit and identifying unit, first process are used to obtain record data when operating SAMBA clusters, second process
For receiving and dispatching record data in node, the memory cell is used to store record data to corresponding node, the choosing
Selecting unit will send the node of record data for randomly choosing one or more, and the identifying unit is used for predicate node
Whether record data stores successfully.
The present invention provides a kind of SAMBA clusters TDB data-base recording backup methods, has the advantages that:
Method provided by the present invention, the record to storing on dmaster nodes carries out extra record data backup, addition
BACKUP type of messages, can all have a node to store newest under what circumstances by the message transmission guarantee between process
Data record;Can simultaneously there are at least two parts newest record datas in cluster, in follow-up any node failure(Comprising
Dmaster nodes)Cluster can return to newest record, client namely carry out file read-write from newest position, prevent
Stop the generation read and write or connect again and disconnect and reconnect scene, improve the read-write efficiency and continuous availability of cluster.
SAMBA clusters TDB data-base recordings back-up device and system and SAMBA cluster TDB data-base recording backup methods
Beneficial effect be similar to, repeat no more.
Brief description of the drawings:
The schematic flow sheet of the SAMBA cluster TDB data-base recording backup methods that Fig. 1 is provided by the embodiment of the present invention;
The another embodiment of the SAMBA cluster TDB data-base recording backup methods that Fig. 2 is provided by the embodiment of the present invention
Schematic flow sheet;
The structural representation of the SAMBA cluster TDB data-base recording back-up devices that Fig. 3 is provided by the embodiment of the present invention;
The frame diagram of the SAMBA cluster TDB data-base recording standby systems that Fig. 4 is provided by the embodiment of the present invention;
Specific embodiment:
In order to make it easy to understand, the part noun to occurring in the embodiment of the present invention makees explanation explained below:
First process, refers to smbd processes, and smbd is that the server for providing file-sharing and print service to Windows client enters
Journey, the server provides file parking space and print service with SMB (or CIFS) agreements to client, is being accessed in client
During samba cluster share directories, smbd processes obtain the relative recording of the operation;
Second process, refers to ctdbd processes, is the service processes in ctdb, in the present invention for receiving and dispatching record number in node
According to;
The node that the present invention is narrated refers to dmaster nodes;
What deserves to be explained is, the present invention be previously mentioned first, second etc., such as the first process, the second process, only to difference
Process or node be distinguish between, be not offered as precedence relationship.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of SAMBA clusters TDB data-base recording backup methods, including:First node is obtained
Record data when being operated to SAMBA clusters;Record data is sent to one or more other nodes;Other nodes
Record storage is carried out after receiving record data;First node is returned to by whether other nodes store successful result;First segment
After point receives other nodes storage successful result, stored record.
Refer to Fig. 1, the stream of the SAMBA cluster TDB data-base recording backup methods that Fig. 1 is provided by the embodiment of the present invention
Journey schematic diagram, a kind of SAMBA clusters TDB data-base recording backup methods, including:
Step S101, the first process obtain record data when being operated to SAMBA clusters.
When samba cluster share directories are accessed, wherein smbd processes can first obtain the related note of the operation to client
Record, newest record is stored on dmaster nodes, and smbd asks dmaster node state-of-the-art record numbers by lmaster nodes
According to meeting return recording data when dmaster nodes receive record request.
Step S102, record data is sent to first node.
Wherein, record data is that BACKUP message is transmitted by backup messages, and sending BACKUP by smbd processes disappears
Cease and addition record data notification first node ctdbd processes, wherein record data includes key and value, subsequent smbd processes
The synchronous response for waiting local ctdbd backups to complete.
Step S103, first node obtain record data when being operated to SAMBA clusters.
Step S104, first node random selection one node is as Section Point and sends record data.
The ctdbd processes of first node, can be according to random algorithm after the backup for receiving BACKUP message is notified, random choosing
A line node is selected as Section Point, and record data is sent to the ctdbd processes of Section Point, first node
After ctdbd processes have sent record data, the completion response to be backed up such as asynchronous immediately takes next step to move according to returning result
Make.
Step S105, Section Point carry out record storage after receiving record data.
Step S106, whether Section Point is stored successful result return to first node.
In the present embodiment, after the ctdbd processes of Section Point receive BACKUP message, can be obtained from the request will
The record data of storage, is then stored in Section Point, and BACKUP responses are sent to the ctdbd of first node after storing successfully
Process, the explanation comprising Section Point backup success or failure in response:
Section Point carries out record storage success, then carry out next step;
It is unsuccessful that Section Point carries out record storage, then first node randomly chooses a node and sends record data again, directly
Record is carried out to selected node to back up successfully, carry out next step.
Step S107, the second process of first node receive other nodes and carry out after record data stores successful result,
Result is sent to the first process.
Record data storage is simultaneously arrived first node by step S108, the first process treatment operation.
After first node receives BACKUP responses, the smbd processes of first node, smbd are replied in construction BACKUP responses
Process receives backup and completes response, and by record data storage to first node, backup flow terminates.
Used as a kind of implementation method, first node can be randomly choosed many when selecting other nodes to send record data
Individual other nodes send record data simultaneously, refer to Fig. 2, the SAMBA cluster TDB numbers that Fig. 2 is provided by the embodiment of the present invention
According to the schematic flow sheet of the another embodiment of storehouse record backup method;In the present embodiment, SAMBA clusters TDB databases
Record backup method is comprised the following steps:
Step S201, the first process obtain record data when being operated to SAMBA clusters.
Step S202, record data is sent to first node.
Wherein, record data is that BACKUP message is transmitted by backup messages, and sending BACKUP by smbd processes disappears
Cease and addition record data notification first node ctdbd processes, wherein record data includes key and value, subsequent smbd processes
The synchronous response for waiting local ctdbd backups to complete.
Step S203, first node obtain record data when being operated to SAMBA clusters.
Step S204, the multiple nodes of first node random selection are respectively as Section Point, the 3rd node, fourth node etc.
And send record data.
Now, the ctdbd processes of first node are understood according to random algorithm after the backup for receiving BACKUP message is notified,
The multiple line nodes of random selection respectively send record data respectively as Section Point, the 3rd node, fourth node etc.
It is asynchronous immediately etc. to be backed up complete after the ctdbd processes of first node have sent record data to the ctdbd processes of these nodes
Into response, next step is taken to act according to returning result.
Step S205, other nodes carry out record storage respectively after receiving record data.
Step S206, whether other nodes are stored successful result return to first node respectively.
In the present embodiment, the ctdbd processes in nodes such as Section Point, the 3rd node, fourth nodes receive BACKUP
After message, the record data to be stored can be obtained from the request, own node is then stored in, by BACKUP after storing successfully
Response is sent to the ctdbd processes of first node, the explanation comprising these node standby success or failures in response;Because simultaneously
The multiple line nodes of selection send BACKUP message, are substantially not in the situation of other node full backups failure, therefore not
Needs select node transmission BACKUP message because of backup failure herein, and first node is backed up successfully receiving any node
Response after, you can proceed by next step operation.
After step S207, the second process of first node receive the successful result of any record data storage, result is sent out
Deliver to the first process.
Record data storage is simultaneously arrived first node by step S208, the first process treatment operation.
After first node receives BACKUP responses, construction replys the smbd processes of first node, and smbd processes receive standby
Part completes response, and by record data storage to first node, backup flow terminates.
Used as another embodiment, first node can simultaneously send BACKUP message in the multiple nodes of selection, while
Record data storage is carried out in first node, because simultaneous selection multiple line node sends BACKUP message, will not be gone out substantially
The situation of existing other node full backups failure, therefore the process that BACKUP responses are returned can be saved, lift backup efficiency, tool
Body process is repeated no more.
The embodiment of the present invention also provides a kind of SAMBA clusters TDB data-base recording back-up devices, including:Record data is obtained
Modulus block, for obtaining record data when being operated to SAMBA clusters;First sending module, for the first process and the
Record data between one node sends or returns;Second sending module, sends or returns for the record data between node;Deposit
Storage module, for record data to be stored to node.
Refer to Fig. 3, the knot of the SAMBA cluster TDB data-base recording back-up devices that Fig. 3 is provided by the embodiment of the present invention
Structure schematic diagram;The present embodiment provides a kind of SAMBA clusters TDB data-base recording back-up devices, including:Record data obtains mould
Block 301, for obtaining record data when being operated to SAMBA clusters;First sending module 302, for the first process with
Record data between first node sends or returns;Second sending module 303, sends or returns for the record data between node
Return;Memory module 304, for record data to be stored to node.
Determination module 305, is set in node, and whether the record data for judging other nodes stores successfully.
Selecting module 306, the node of record data will be sent for randomly choosing one or more.
Refer to Fig. 4, the frame of the SAMBA cluster TDB data-base recording standby systems that Fig. 4 is provided by the embodiment of the present invention
Frame figure;The present embodiment provides a kind of SAMBA clusters TDB data-base recording standby systems, including the first process and multiple nodes, its
In, multiple nodes belong to a SAMBA cluster altogether, the second process, memory cell, select unit are included in each node and is sentenced
Order unit, first process is used to obtain record data when operating SAMBA clusters, and second process is used for
Record data is received and dispatched in node, the memory cell is used to store record data to corresponding node, the select unit
The node of record data will be sent for randomly choosing one or more, the identifying unit is used for the record number of predicate node
According to whether storing successfully.
Schematical specific embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to, it is any
The equivalent variations that those skilled in the art is made on the premise of present inventive concept and principle is not departed from and modification, all should belong to
In the scope of protection of the invention.
Claims (10)
1. a kind of SAMBA clusters TDB data-base recording backup methods, it is characterised in that including:First node is obtained to SAMBA
Record data when cluster is operated;Record data is sent to one or more other nodes;Other nodes receive note
Record storage is carried out after record data;First node is returned to by whether other nodes store successful result;First node is received
After other nodes storage successful result, stored record.
2. SAMBA clusters TDB data-base recording backup methods according to claim 1, it is characterised in that first node is obtained
Before taking record data when being operated to SAMBA clusters, also include:First process obtains and SAMBA clusters is operated
When record data;Record data is sent to first node.
3. SAMBA clusters TDB data-base recording backup methods according to claim 1, it is characterised in that the record number
It is transmitted according to by backup messages.
4. SAMBA clusters TDB data-base recording backup methods according to claim 1, it is characterised in that by record data
One or more other nodes are sent to, including:One node is as Section Point and sends record for first node random selection
Data.
5. SAMBA clusters TDB data-base recording backup methods according to claim 4, it is characterised in that by other nodes
Whether store successful result and return to first node, including:Section Point carries out record storage success, then carry out next step;
It is unsuccessful that Section Point carries out record storage, then first node randomly chooses a node and sends record data again, until institute
Select node to carry out record to back up successfully, carry out next step.
6. according to any described SAMBA cluster TDB data-base recording backup methods of claim 1 to 5, it is characterised in that the
After one node receives other nodes storage successful result, stored record, including:Second process of first node receives other sections
After point carries out the record data successful result of storage, result is sent to the first process;The treatment of first process operates and will record
Data Cun Chudao first nodes.
7. a kind of SAMBA clusters TDB data-base recording back-up devices, it is characterised in that including:Record data acquisition module, uses
Record data when acquisition is operated to SAMBA clusters;First sending module, between the first process and first node
Record data send or return;Second sending module, sends or returns for the record data between node;Memory module,
For record data to be stored to node.
8. SAMBA clusters TDB data-base recording back-up devices according to claim 7, it is characterised in that also include:Sentence
Cover half block, is set in node, and whether the record data for judging other nodes stores successfully.
9. SAMBA clusters TDB data-base recording back-up devices according to claim 7, it is characterised in that also include:Choosing
Module is selected, the node of record data will be sent for randomly choosing one or more.
10. a kind of SAMBA clusters TDB data-base recording standby systems, it is characterised in that including the first process and multiple nodes,
Wherein, multiple nodes belong to a SAMBA cluster altogether, included in each node the second process, memory cell, select unit and
Identifying unit, first process is used to obtain record data when operating SAMBA clusters, and second process is used for
Record data is received and dispatched in node, and the memory cell is used to store record data to corresponding node, the selection list
Unit will send the node of record data for randomly choosing one or more, and the identifying unit is used for the record of predicate node
Whether data store successfully.
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CN107181631A (en) * | 2017-07-26 | 2017-09-19 | 郑州云海信息技术有限公司 | A kind of Samba clusters interior joint failure switching method and system |
CN107528903A (en) * | 2017-08-30 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of cluster qos information storage means and device based on ctdb |
CN107547654A (en) * | 2017-09-12 | 2018-01-05 | 郑州云海信息技术有限公司 | A kind of distributed objects storage cluster, deployment, method of servicing and system |
CN108881411A (en) * | 2018-05-31 | 2018-11-23 | 郑州云海信息技术有限公司 | A kind of method that CTDB cluster is grouped under extensive node |
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CN104679897A (en) * | 2015-03-18 | 2015-06-03 | 成都金本华科技股份有限公司 | Data retrieval method under big data environment |
CN104735110A (en) * | 2013-12-23 | 2015-06-24 | 中国电信股份有限公司 | Metadata management method and system |
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CN102693168A (en) * | 2011-03-22 | 2012-09-26 | 中兴通讯股份有限公司 | A method, a system and a service node for data backup recovery |
CN104735110A (en) * | 2013-12-23 | 2015-06-24 | 中国电信股份有限公司 | Metadata management method and system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107181631A (en) * | 2017-07-26 | 2017-09-19 | 郑州云海信息技术有限公司 | A kind of Samba clusters interior joint failure switching method and system |
CN107528903A (en) * | 2017-08-30 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of cluster qos information storage means and device based on ctdb |
CN107547654A (en) * | 2017-09-12 | 2018-01-05 | 郑州云海信息技术有限公司 | A kind of distributed objects storage cluster, deployment, method of servicing and system |
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CN108881411A (en) * | 2018-05-31 | 2018-11-23 | 郑州云海信息技术有限公司 | A kind of method that CTDB cluster is grouped under extensive node |
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