CN111008095A - State snapshot generation and recovery method facing edge cloud - Google Patents
State snapshot generation and recovery method facing edge cloud Download PDFInfo
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- CN111008095A CN111008095A CN201911299622.8A CN201911299622A CN111008095A CN 111008095 A CN111008095 A CN 111008095A CN 201911299622 A CN201911299622 A CN 201911299622A CN 111008095 A CN111008095 A CN 111008095A
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- 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
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1438—Restarting or rejuvenating
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- 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
- G06F11/1469—Backup restoration techniques
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/84—Using snapshots, i.e. a logical point-in-time copy of the data
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Abstract
The invention discloses a state snapshot generating and recovering method facing to edge cloud, which comprises the following steps: s1, collecting edge cloud state information and saving to generate a snapshot file; and S2, sequentially restoring the edge cloud state information based on the generated snapshot file. The processing method for the edge cloud can realize the functions of saving and recovering the state of the edge cloud, is beneficial to supporting the scene requirement of the edge cloud, and helps meet the requirements of opening the edge cloud and recovering the historical state, the requirement of quickly recovering the historical state in case of failure, and the requirement of switching the state when the user of the edge cloud changes.
Description
Technical Field
The invention relates to the technical field of cloud computing virtualization, in particular to a state snapshot generating and recovering method facing to edge cloud.
Background
In recent years, cloud computing technology is continuously mature, more and more data centers select clouds to construct infrastructure, cloud computing generally refers to an infrastructure platform based on a large data center, a centralized large-scale data center and a computing center are established to form a cloud end of the cloud computing, and the cloud end provides resources and services required by a user to the outside, so the large cloud data center is also called a core cloud. The edge cloud computing is an open cloud platform integrating network, computing, storage and application core capabilities at one side close to an object or a data source, and provides services nearby.
The edge cloud is composed of server nodes distributed in the same region, specifically processes service requests of local users, and rapidly and flexibly provides cloud computing services for the users. Because the edge cloud is in the edge scene, there are multiple scene requirements when in use: on one hand, a user can open and close the edge cloud according to actual conditions, and power off the edge cloud as a whole when the edge cloud is not used, and how to quickly recover to the last edge cloud state to continue operation when the edge cloud is used again; secondly, the users of the edge cloud have the characteristic of periodic rotation or frequent change, when the users use the system again, the state may have changed, and how to recover to the last state of the users is also an important requirement under the edge scene; in the third aspect, the equipment in the marginal scene is affected by complex environment, and is easy to have sudden conditions such as failure and the like in comparison with price, and the most important requirement is that the available historical state can be quickly recovered. The edge cloud needs to have the capability of saving and recovering the state, so that the state snapshot generation and recovery method facing the edge cloud is designed to better meet the requirements of the three scenes.
Disclosure of Invention
The present invention aims to overcome the above disadvantages, and provides a method for generating and recovering state snapshots facing edge clouds, which is used to solve the above scenario requirements.
The technical scheme adopted by the invention is as follows:
an edge cloud-oriented state snapshot generating and recovering method comprises the following steps:
s1, collecting edge cloud state information and saving to generate a snapshot file;
and S2, sequentially restoring the edge cloud state information based on the generated snapshot file.
Specifically, the edge cloud state information includes static information and dynamic information, the static information includes cluster configuration, physical topology, and virtual machine static information, and the dynamic information includes virtual machine memory snapshot and disk snapshot.
Specifically, the cluster configuration of the invention comprises a cluster name, a cluster network configuration, a firewall configuration, a shared storage configuration and a user information and authority distribution configuration; the physical topology comprises physical machine configuration information, virtual machine distribution information and network topology information; the static information of the virtual machine comprises the name of the virtual machine, CPU memory resource configuration, network configuration and disk configuration.
Specifically, the edge cloud state snapshot of the present invention includes a snapshot basic information table, a cluster configuration table, a physical topology table, a virtual machine static information table, and a dynamic information table, where the snapshot basic information table includes a snapshot ID, a snapshot name, a snapshot description, an associated user, a timestamp, and is used to store basic information of the state snapshot, and the cluster configuration table, the physical topology table, the virtual machine static information table, and the dynamic information table are respectively used to store cluster configuration, physical topology, virtual machine static information, and dynamic information.
Specifically, in step S1, the present invention: the static information is inquired through an edge cloud management interface, then a snapshot generator is used for structuring data, and finally the structured data are stored in a relational database; and the dynamic information sequentially executes snapshot commands to the running virtual machines through the edge cloud management interface, saves snapshot files to a specified storage directory, generates snapshot lists of all the virtual machines and saves the snapshot lists to a relational database.
Specifically, in step S2, the present invention: firstly, inquiring appointed state snapshots from a relational database, reversely generating cluster configuration, physical topology and virtual machine static information according to structured data, and then calling a cluster management interface to enable the configuration information to take effect; secondly, after all the configurations take effect, the snapshot lists of all the virtual machines are inquired from the relational database, the snapshot files of all the virtual machines are inquired in sequence according to the lists, and then the snapshot files are used for snapshot recovery.
Specifically, the step of collecting the edge cloud state information and saving the generated snapshot file includes:
s11: the snapshot generator firstly generates a unique UUID as a snapshot ID, then generates snapshot basic information by using information such as a snapshot name and description provided by a user, and carries out data formatting according to a format of a basic information table;
s12: calling a cluster management interface to inquire various configuration information of the cluster, and carrying out data structuring according to the format of a cluster configuration table;
s13: calling a cluster management interface to inquire physical topology information and carrying out data structuring according to the format of a physical topology table;
s14: calling a cluster management interface to inquire the static information of the virtual machine, and structuring data according to the format of a static information table of the virtual machine;
s15: calling a cluster management interface to generate disk and memory snapshots of all running state virtual machines, recording disk and memory snapshot information of all the virtual machines, and performing data structuring according to the format of a dynamic information table;
s16: after the information query and the data structuring are completed, all the structured data are stored in a relational database;
s17: if any step is not successfully executed in the steps S11-S16, the snapshot generation fails; if the execution is successful in the steps S11-S16, the state snapshot generation situation is returned to the user.
Specifically, the step of sequentially restoring the edge cloud state information based on the generated snapshot file includes:
s21: the user selects a historical snapshot at a certain moment from the snapshot list to start recovery;
s22: inquiring a basic information table according to the snapshot information and returning a snapshot ID;
s23: inquiring the cluster configuration of the snapshot from a cluster configuration table according to the snapshot ID;
s24: calling a cluster management interface to enable cluster configuration to take effect;
s25: inquiring physical topology information of the snapshot from a physical topology table according to the snapshot ID;
s26: calling a cluster management interface to rebuild a physical topology;
s27: inquiring the static information of the virtual machine of the snapshot from the static information table of the virtual machine according to the snapshot ID;
s28: calling a cluster management interface to recover the static information of the virtual machine;
s29: inquiring the snapshot information of the disk memory of the virtual machine of the snapshot from the dynamic information table according to the snapshot ID;
s210: calling a cluster management interface to recover a disk and a memory snapshot of the virtual machine;
s211: if any step is not successfully executed in the steps S21-210, the state snapshot is failed to recover; if the execution of steps S21-210 is successful, the state snapshot is restored successfully.
The invention also relates to a state snapshot generating and recovering system facing the edge cloud, which comprises a snapshot generator, a snapshot restorer, a relational database and a cluster management interface for butting the edge cloud; wherein:
the snapshot generator is responsible for calling the cluster management interface to inquire information, generating snapshot information and storing the snapshot information in the relational database;
the snapshot restorer is responsible for acquiring and analyzing snapshot information from the relational database and calling the cluster management interface to enable configuration to take effect;
the relational database is used for storing all snapshot information, and the dynamic information snapshot file of the virtual machine is stored and saved by the edge cloud.
The invention has the following advantages:
1. the processing method for the edge cloud can realize the functions of saving and recovering the state of the edge cloud, is beneficial to supporting the scene requirement of the edge cloud, and helps meet the requirements of opening the edge cloud and recovering the historical state, the requirement of quickly recovering the historical state in case of failure, and the requirement of switching the state when the user of the edge cloud changes.
2. The invention provides a state snapshot defining method facing to edge cloud, which has certain universality and can be applied to other edge cloud systems to define the state of a cluster at a certain moment so as to facilitate the storage and recovery of the state.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the system components of the present invention;
FIG. 2 is a schematic diagram of the composition of an edge cloud state snapshot according to the present invention;
FIG. 3 is a schematic diagram illustrating a state snapshot generation process according to the present invention;
fig. 4 is a schematic diagram of a state snapshot recovery process according to the present invention.
Detailed Description
The present invention is further described in the following with reference to the drawings and the specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention, and the embodiments and the technical features of the embodiments can be combined with each other without conflict.
It is to be understood that the terms first, second, and the like in the description of the embodiments of the invention are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order. The "plurality" in the embodiment of the present invention means two or more.
The term "and/or" in the embodiment of the present invention is only an association relationship describing an associated object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, B exists alone, and A and B exist at the same time. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
As shown in fig. 1, the present embodiment provides a state snapshot generating and recovering system facing an edge cloud, including a snapshot generator, a snapshot restorer, a relational database, and a cluster management interface interfacing with the edge cloud; wherein:
the snapshot generator is responsible for calling the cluster management interface to inquire information, generating snapshot information and storing the snapshot information in the relational database;
the snapshot restorer is responsible for acquiring and analyzing snapshot information from the relational database and calling the cluster management interface to enable configuration to take effect;
the relational database is used for storing all snapshot information, and the dynamic information snapshot file of the virtual machine is stored and saved by the edge cloud.
The embodiment also provides a state snapshot generating and recovering method facing the edge cloud, which comprises the following steps:
s1, collecting edge cloud state information and saving to generate a snapshot file; the edge cloud state information comprises static information and dynamic information, the static information comprises cluster configuration, physical topology and virtual machine static information, and the dynamic information comprises virtual machine memory snapshots and disk snapshots. The cluster configuration comprises a cluster name, cluster network configuration, firewall configuration, shared storage configuration, user information and authority distribution configuration and other custom configuration; the physical topology comprises physical machine configuration information, virtual machine distribution information and network topology information; the static information of the virtual machine comprises the name of the virtual machine, CPU memory resource configuration, network configuration, disk configuration and configuration information of other virtual devices.
In this embodiment, the static information is queried through an edge cloud management interface, then a snapshot generator performs data structuring, and finally structured data is stored in a relational database; and the dynamic information sequentially executes snapshot commands to the running virtual machines through the edge cloud management interface, saves snapshot files to a specified storage directory, generates snapshot lists of all the virtual machines and saves the snapshot lists to a relational database. As shown in fig. 3, the method specifically comprises the following steps:
s11: the snapshot generator firstly generates a unique UUID as a snapshot ID, then generates snapshot basic information by using information such as a snapshot name and description provided by a user, and carries out data formatting according to a format of a basic information table;
s12: calling a cluster management interface to inquire various configuration information of the cluster, and carrying out data structuring according to the format of a cluster configuration table;
s13: calling a cluster management interface to inquire physical topology information and carrying out data structuring according to the format of a physical topology table;
s14: calling a cluster management interface to inquire the static information of the virtual machine, and structuring data according to the format of a static information table of the virtual machine;
s15: calling a cluster management interface to generate disk and memory snapshots of all running state virtual machines, recording disk and memory snapshot information of all the virtual machines, and performing data structuring according to the format of a dynamic information table;
s16: after the information query and the data structuring are completed, all the structured data are stored in a relational database;
s17: if any step is not successfully executed in the steps S11-S16, the snapshot generation fails; if the execution is successful in the steps S11-S16, the state snapshot generation situation is returned to the user.
As shown in fig. 1, the state snapshot of the edge cloud generated in step S1 includes a snapshot basic information table, a cluster configuration table, a physical topology table, a virtual machine static information table, and a dynamic information table, where the snapshot basic information table includes a snapshot ID, a snapshot name, a snapshot description, an associated user, and a timestamp, and is used to store basic information of the state snapshot, and the cluster configuration table, the physical topology table, the virtual machine static information table, and the dynamic information table are respectively used to store cluster configuration, physical topology, virtual machine static information, and dynamic information.
And S2, sequentially restoring the edge cloud state information based on the generated snapshot file. In step S2: firstly, inquiring appointed state snapshots from a relational database, reversely generating cluster configuration, physical topology and virtual machine static information according to structured data, and then calling a cluster management interface to enable the configuration information to take effect; secondly, after all the configurations take effect, inquiring snapshot lists of all the virtual machines from the relational database, sequentially inquiring snapshot files of all the virtual machines according to the lists, and then using the snapshot files to perform snapshot recovery; as shown in fig. 4, the method is implemented by the following steps:
s21: the user selects a historical snapshot at a certain moment from the snapshot list to start recovery;
s22: inquiring a basic information table according to the snapshot information and returning a snapshot ID;
s23: inquiring the cluster configuration of the snapshot from a cluster configuration table according to the snapshot ID;
s24: calling a cluster management interface to enable cluster configuration to take effect;
s25: inquiring physical topology information of the snapshot from a physical topology table according to the snapshot ID;
s26: calling a cluster management interface to rebuild a physical topology;
s27: inquiring the static information of the virtual machine of the snapshot from the static information table of the virtual machine according to the snapshot ID;
s28: calling a cluster management interface to recover the static information of the virtual machine;
s29: inquiring the snapshot information of the disk memory of the virtual machine of the snapshot from the dynamic information table according to the snapshot ID;
s210: calling a cluster management interface to recover a disk and a memory snapshot of the virtual machine;
s211: if any step is not successfully executed in the steps S21-210, the state snapshot is failed to recover; if the execution of steps S21-210 is successful, the state snapshot is restored successfully.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (9)
1. A state snapshot generating and recovering method facing to edge cloud is characterized in that: the method comprises the following steps:
s1, collecting edge cloud state information and saving to generate a snapshot file;
and S2, sequentially restoring the edge cloud state information based on the generated snapshot file.
2. The edge cloud-oriented state snapshot generating and recovering method according to claim 1, wherein: the edge cloud state information comprises static information and dynamic information, the static information comprises cluster configuration, physical topology and virtual machine static information, and the dynamic information comprises virtual machine memory snapshots and disk snapshots.
3. The edge cloud-oriented state snapshot generating and recovering method according to claim 2, wherein: the cluster configuration comprises a cluster name, cluster network configuration, firewall configuration, shared storage configuration and user information and authority distribution configuration; the physical topology comprises physical machine configuration information, virtual machine distribution information and network topology information; the static information of the virtual machine comprises the name of the virtual machine, CPU memory resource configuration, network configuration and disk configuration.
4. An edge cloud-oriented state snapshot generating and recovering method according to claim 3, wherein: the edge cloud state snapshot comprises a snapshot basic information table, a cluster configuration table, a physical topology table, a virtual machine static information table and a dynamic information table, wherein the snapshot basic information table comprises a snapshot ID, a snapshot name, a snapshot description, an associated user and a timestamp and is used for storing basic information of the state snapshot, and the cluster configuration table, the physical topology table, the virtual machine static information table and the dynamic information table are respectively used for storing cluster configuration, physical topology, virtual machine static information and dynamic information.
5. The edge cloud-oriented state snapshot generating and recovering method according to claim 2, wherein: in step S1: the static information is inquired through an edge cloud management interface, then a snapshot generator is used for structuring data, and finally the structured data are stored in a relational database; and the dynamic information sequentially executes snapshot commands to the running virtual machines through the edge cloud management interface, saves snapshot files to a specified storage directory, generates snapshot lists of all the virtual machines and saves the snapshot lists to a relational database.
6. The edge cloud-oriented state snapshot generating and recovering method according to claim 6, wherein: in step S2: firstly, inquiring appointed state snapshots from a relational database, reversely generating cluster configuration, physical topology and virtual machine static information according to structured data, and then calling a cluster management interface to enable the configuration information to take effect; secondly, after all the configurations take effect, the snapshot lists of all the virtual machines are inquired from the relational database, the snapshot files of all the virtual machines are inquired in sequence according to the lists, and then the snapshot files are used for snapshot recovery.
7. The edge cloud-oriented state snapshot generating and recovering method according to claim 2, wherein: the step of collecting edge cloud state information and saving and generating a snapshot file comprises the following steps:
s11: the snapshot generator firstly generates a unique UUID as a snapshot ID, then generates snapshot basic information by using information such as a snapshot name and description provided by a user, and carries out data formatting according to a format of a basic information table;
s12: calling a cluster management interface to inquire various configuration information of the cluster, and carrying out data structuring according to the format of a cluster configuration table;
s13: calling a cluster management interface to inquire physical topology information and carrying out data structuring according to the format of a physical topology table;
s14: calling a cluster management interface to inquire the static information of the virtual machine, and structuring data according to the format of a static information table of the virtual machine;
s15: calling a cluster management interface to generate disk and memory snapshots of all running state virtual machines, recording disk and memory snapshot information of all the virtual machines, and performing data structuring according to the format of a dynamic information table;
s16: after the information query and the data structuring are completed, all the structured data are stored in a relational database;
s17: if any step is not successfully executed in the steps S11-S16, the snapshot generation fails; if the execution is successful in the steps S11-S16, the state snapshot generation situation is returned to the user.
8. The edge cloud-oriented state snapshot generating and recovering method according to claim 8, wherein: the step of sequentially restoring the edge cloud state information based on the generated snapshot file comprises the following steps:
s21: the user selects a historical snapshot at a certain moment from the snapshot list to start recovery;
s22: inquiring a basic information table according to the snapshot information and returning a snapshot ID;
s23: inquiring the cluster configuration of the snapshot from a cluster configuration table according to the snapshot ID;
s24: calling a cluster management interface to enable cluster configuration to take effect;
s25: inquiring physical topology information of the snapshot from a physical topology table according to the snapshot ID;
s26: calling a cluster management interface to rebuild a physical topology;
s27: inquiring the static information of the virtual machine of the snapshot from the static information table of the virtual machine according to the snapshot ID;
s28: calling a cluster management interface to recover the static information of the virtual machine;
s29: inquiring the snapshot information of the disk memory of the virtual machine of the snapshot from the dynamic information table according to the snapshot ID;
s210: calling a cluster management interface to recover a disk and a memory snapshot of the virtual machine;
s211: if any step is not successfully executed in the steps S21-210, the state snapshot is failed to recover; if the execution of steps S21-210 is successful, the state snapshot is restored successfully.
9. An edge cloud-oriented state snapshot generation and recovery system, characterized by: the system comprises a snapshot generator, a snapshot restorer, a relational database and a cluster management interface for butting edge clouds; wherein:
the snapshot generator is responsible for calling the cluster management interface to inquire information, generating snapshot information and storing the snapshot information in the relational database;
the snapshot restorer is responsible for acquiring and analyzing snapshot information from the relational database and calling the cluster management interface to enable configuration to take effect;
the relational database is used for storing all snapshot information, and the dynamic information snapshot file of the virtual machine is stored and saved by the edge cloud.
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