CN114327745B - Method and system for storage hot migration of cross-host virtual machine - Google Patents
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Abstract
The invention provides a method and a system for cross-host virtual machine storage live migration, which are used for live migrating a disk of a virtual machine of a source host to a target host, monitoring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period after the live migration is started, judging whether the live migration needs to be optimized or not based on the total speed of actual dirty data generation and the data transmission speed after each preset time period is finished, determining the disk needing to be optimized based on the writing speed of each disk only when the live migration needs to be optimized, and reducing the writing speed of the disk needing to be optimized. The invention can limit the write speed of the disk according to the actual migration state in each preset time period, and on the basis of ensuring that the live migration can be completed, the read-write performance of the virtual machine is limited as little as possible, so that the performance of the virtual machine is prevented from being greatly damaged for a long time.
Description
Technical Field
The invention relates to the technical field of data transmission, in particular to a method and a system for cross-host virtual machine storage live migration.
Background
Cross-host virtual machine live migration is a function implemented by QEMU that allows a virtual machine to be migrated to a different host with little or no offline, and what the live migration essentially does is to copy the virtual machine from the source host to the target host intact. However, for the hot migration, if the source host and the target host share storage (the image file directory of the virtual machine is on one shared storage), only the execution state of the virtual machine vCPU of the source host, the content in the memory, and the state of the virtual machine device need to be sent to the target host through the network, and if the source host and the target host are not based on shared storage, the storage of the virtual machine needs to be hot migrated across hosts at the same time, that is, the disk of the virtual machine of the source host needs to be hot migrated to the target host. Currently, QEMU thermal migration storage generally needs to be completed through full synchronization, iterative synchronization, and double write, which specifically includes the following steps:
(1) Full quantity synchronization: the virtual machine still runs on the source end host, all data blocks of a disk of the virtual machine are transmitted to the target end host, and the QEMU monitors and records modified data blocks (called dirty data blocks) in the transmitted data blocks in the transmission process at the same time of transmission;
(2) Iteration synchronization: transmitting the dirty data blocks which are transmitted and modified by the virtual machine to a target end host;
(3) Double write mode: and when no new dirty data block is generated and no ongoing read-write request is generated after the transmission of the dirty data block is finished, considering that the storage synchronization is finished, entering a data double-write mode, starting the hot migration of other parts of the virtual machine, and synchronously finishing the newly issued write request on the source end host and the target end host before all the parts finish the migration.
The most important disadvantage of the method for synchronizing the disk data of the virtual machines of the source end host and the target end host by using the iterative migration of the dirty data blocks of the virtual machines is that when the virtual machines are continuously in a high-load state and a new dirty data block is generated by a write request of the source end storage all the time, drop-off transmission is difficult to complete, if the speed of the dirty data output of the virtual machines is continuously higher than the actual transmission speed, disk migration of the virtual machines cannot be completed, and continuous data synchronization can cause long-time occupation of bandwidth.
Another way of disk synchronization is to start entering a double-write mode when full synchronization starts, which has the advantage that the step of iterative synchronization can be omitted and only one full synchronization needs to be performed; however, the disadvantage is that in the synchronization process, data needs to be written into the source host and the target host simultaneously, which greatly reduces the efficiency of reading and writing.
Disclosure of Invention
The invention aims to provide a method and a system for cross-host virtual machine storage live migration, which are used for solving the problems that when the disk storage of a virtual machine of a source host is migrated to a target host, the migration is difficult to complete, so that the bandwidth is occupied for a long time or the read-write efficiency is low and the like.
In order to achieve the above object, the present invention provides a method for performing cross-host virtual machine storage live migration, which is used for live migrating a disk of a virtual machine of a source host to a target host, and includes:
after the hot migration is started, acquiring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period;
after each preset time period is finished, judging whether the thermomigration needs to be optimized or not based on the total speed of the actual dirty data generation and the data transmission speed; and the number of the first and second groups,
when the thermal migration needs to be optimized, determining the magnetic disks needing to be optimized based on the writing speed of each magnetic disk, and reducing the writing speed of the magnetic disks needing to be optimized in the next preset time period.
Optionally, when a ratio of the total speed of the actual dirty data generation to the data transmission speed is greater than a first predetermined value and less than a second predetermined value, it is determined that the thermal migration needs to be optimized, where the first predetermined value is less than 1, and the second predetermined value is greater than 1.
Optionally, the range of the first predetermined value is 0.9 to 1, and the range of the second predetermined value is 1 to 1.8.
Optionally, when a ratio of the total speed of the actual dirty data generation to the data transfer speed is less than or equal to the first predetermined value, the write speed of each disk is maintained and the thermal migration is continuously performed.
Optionally, when a ratio of the total speed of the actual dirty data generation and the data transfer speed is greater than or equal to the second predetermined value, thermal migration is interrupted.
Optionally, the step of determining the magnetic disk to be optimized based on the write speed of each magnetic disk includes:
calculating the average writing speed of the magnetic disks based on the writing speed of each magnetic disk;
and judging whether the writing speed of each magnetic disk is greater than the average writing speed or not, and taking the magnetic disk with the writing speed greater than the average writing speed as the magnetic disk needing to be optimized.
Optionally, before reducing the write speed of the magnetic disk that needs to be optimized, the method further includes:
calculating a corresponding upper write speed limit based on the write speed of the magnetic disk needing to be optimized; and (c) a second step of,
and after the writing speed of the magnetic disk is reduced, the writing speed of the magnetic disk is smaller than the corresponding upper writing speed limit.
Optionally, based on the write speed of the disk to be optimized, the corresponding upper limit of the write speed is calculated according to the following method:
wherein wsp _ i max For the upper limit of the writing speed of the disk i needing to be optimized in the next preset time period, alpha is a third preset value, and the third preset value is less than 1, and migrate _spis the data transmission speed; dirty _ sp is the total speed of the actual dirty data production; wsp _ i is the write speed of disk i for the last predetermined period of time.
Optionally, the third predetermined value is 0.9 to 1.
The invention also provides a system for the hot migration of the cross-host virtual machine, which is used for hot migration of the disk of the virtual machine of the source host to the target host and comprises the following steps:
the data monitoring module is used for acquiring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period after the thermal migration is started;
the optimization judging module is used for judging whether the thermomigration needs to be optimized or not based on the total speed of the actual dirty data generation and the data transmission speed after each preset time period is finished; and the number of the first and second groups,
and the optimization execution module is used for determining the magnetic disks needing to be optimized based on the writing speed of each magnetic disk and reducing the writing speed of the magnetic disks needing to be optimized when the thermal migration needs to be optimized.
The invention provides a method and a system for cross-host virtual machine storage live migration, which are used for live migrating a disk of a virtual machine of a source host to a target host, monitoring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period after the live migration is started, judging whether the live migration needs to be optimized or not based on the total speed of actual dirty data generation and the data transmission speed after each preset time period is ended, determining the disk needing to be optimized based on the writing speed of each disk only when the hot migration needs to be optimized, and reducing the writing speed of the disk needing to be optimized. The method can limit the writing speed of the disk according to the actual migration state in each preset time period, on the basis of ensuring that the thermal migration can be completed, the read-write performance of the virtual machine is limited as little as possible, the performance of the virtual machine is prevented from being greatly damaged for a long time, the writing speed of the disk needing to be optimized is only reduced, and the writing speed of the disk needing not to be limited is prevented from being limited.
Drawings
FIG. 1 is a flow chart of a method for cross-host virtual machine storage live migration according to an embodiment of the present invention;
FIG. 2 is a flowchart of determining the disk that needs to be optimized according to an embodiment of the present invention;
FIG. 3 is a block diagram of a system for cross-host virtual machine live migration according to an embodiment of the present invention;
reference numbers: 10-a data monitoring module; 20-an optimization judgment module; 30-optimizing the execution module.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Fig. 1 is a flowchart of a method for storage live migration across host virtual machines according to this embodiment. As shown in fig. 1, the method for performing cross-host virtual machine storage hot migration is used for performing hot migration on a disk of a virtual machine of a source host to a target host, and includes:
step S100: after the hot migration is started, acquiring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period;
step S200: after each preset time period is finished, judging whether the heat migration needs to be optimized or not based on the total speed of the actual dirty data generation and the data transmission speed; and the number of the first and second groups,
step S300: when it is determined that the thermal migration needs to be optimized, determining the disks needing to be optimized based on the write speed of each disk, and reducing the write speed of the disks needing to be optimized in the next predetermined time period (or referred to as a preset time period).
Specifically, step S100 is executed first, and the whole process of the thermal migration is divided into a small time period, where each time period is the predetermined time period. For example: the whole process of thermomigration required 60 minutes, and the cut was 6 pieces, each of the predetermined time periods being 10 minutes.
And then, starting the thermal migration of the disk, wherein the steps of the thermal migration are divided into a full-volume synchronization mode, an iterative synchronization mode and a double-write mode, and redundant description is omitted here. And in each preset time period, dynamically monitoring the thermal migration continuously, and acquiring the total speed of the actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine.
Step S200 is executed, after each predetermined time period is over, the total speed dirty _ sp and the data transmission speed migrate _ sp generated for the actual dirty data of the virtual machine, and the writing speed wsp _ i of each disk i (i is greater than or equal to 1 and less than or equal to N, and N is the total number of disks in the virtual machine) max And (6) carrying out data processing. Specifically, a ratio of the actual dirty data generation total speed dirty _ sp to the data transfer speed miglate _ sp is first calculated, and then it is determined whether the ratio of the actual dirty data generation total speed dirty _ sp to the data transfer speed miglate _ sp is greater than a first predetermined value and less than a second predetermined value, where the first predetermined value is less than 1 and the second predetermined value is greater than 1.
Further, when the ratio of the actual dirty data generating total speed dirty _ sp to the data transfer speed migrate _ sp is smaller than or equal to the first predetermined value, it may be determined that the actual dirty data generating total speed dirty _ sp is much smaller than the data transfer speed migrate _ sp, and migration may be effectively completed based on the current actual dirty data generating total speed dirty _ sp and the data transfer speed migrate _ sp without performing optimized thermal migration, and it is sufficient to maintain the writing speed of each disk and continue to perform thermal migration; when the ratio of the actual dirty data generating total speed dirty _ sp to the data transmission speed migrate _ sp is greater than a first predetermined value and smaller than a second predetermined value, it may be determined that the actual dirty data generating total speed dirty _ sp and the data transmission speed migrate _ sp are not greatly different from each other, and the thermal migration needs to be optimized based on that the current actual dirty data generating total speed dirty _ sp and the current data transmission speed migrate _ sp are not favorable for the effective completion of the thermal migration; when the ratio of the actual dirty data generating total speed dirty _ sp to the data transfer speed migrate _ sp is greater than or equal to the second predetermined value, it may be determined that the actual dirty data generating total speed dirty _ sp is greater than the data transfer speed migrate _ sp, and migration may not be effectively completed based on the current actual dirty data generating total speed dirty _ sp and the current data transfer speed migrate _ sp without a margin for optimization, and at this time, thermal migration may be interrupted.
It should be understood that "without room for optimization" means that the optimization comes at the cost of sharply reducing the read-write performance of the current disk, and thus greatly reducing the read-write performance of the virtual machine in a short time, which performance reduction is unacceptable.
Preferably, the first predetermined value is in the range of 0.9 to 1, for example 0.9; the second predetermined value is in the range of 1-1.8, for example 1.8, so that the read/write speed of the magnetic disk is not limited too low, and at least 10% progress of thermal migration can be guaranteed per the predetermined time period.
Next, step S300 is executed, and when it is determined that the thermal migration needs to be optimized, the disks that need to be optimized are determined based on the write speed of each of the disks. Specifically, fig. 2 is a flowchart of determining the disk that needs to be optimized according to this embodiment. As shown in fig. 2, first, an average write speed of the disks is calculated based on the write speed of each disk, for example, the write speed of each disk i is wsp _ i, and the sum of the write speeds of the N disks is obtained:
and then dividing the sum wsp _ total of the writing speeds of the disks by the number N of the disks to obtain the average writing speed wsp _ avg of the disks. Then, it is determined whether the write speed wsp _ i of each disk i is greater than the average write speed wsp _ avg, and the disk i with the write speed wsp _ i greater than the average write speed wsp _ avg is the disk to be optimized.
Further, a corresponding upper write speed limit is calculated based on the write speed of the disk to be optimized. In this embodiment, the upper limit wsp _ i of the write speed of the disk i to be optimized is calculated according to the following method max ：
Wherein wsp _ i max For the upper limit of the writing speed of the disk i needing to be optimized in the next preset time period, alpha is a third preset value, and the third preset value is less than 1, and migrate _spis the data transmission speed; dirty _ sp is the total speed of the actual dirty data production; wsp _ i is the write speed of the disk i in the last predetermined time period, i.e. it should be explained that the last predetermined time period is the previous time period adjacent to the next predetermined time period.
Wherein α is a third predetermined value, which is less than 1. Optionally, the third predetermined value is 0.9 to 1, for example, 0.9.
Reducing the write speed of the disk i to be optimized in the next preset time period, wherein after the write speed of the disk i is reduced, the write speed of the disk i should be less than the upper write speed limit wsp _ i max . Calculating the upper limit wsp _ i of the writing speed of the disk i max Then, lowering the disk in the next predetermined periodi, the upper limit wsp _ i of the writing speed of the disk i is used max For reference, the writing speed is prevented from being reduced too much, and the reading and writing performance of the virtual machine can be greatly ensured not to be influenced obviously.
Fig. 3 is a block diagram of a system for cross-host virtual machine live migration according to this embodiment. As shown in fig. 3, the system for performing cross-host virtual machine live migration is configured to live migrate a disk of a virtual machine of a source host to a target host, and includes:
the data monitoring module 10 is configured to, after the live migration is started, obtain, in each predetermined time period, a total speed of actual dirty data generation, a data transmission speed, and a write speed of each disk of the virtual machine;
an optimization judging module 20, configured to judge whether the thermomigration needs to be optimized based on the total speed of the actual dirty data generation and the data transmission speed after each predetermined time period ends; and the number of the first and second groups,
and the optimization execution module 30 is configured to determine the disks needing to be optimized based on the write speed of each disk and reduce the write speed of the disks needing to be optimized when it is determined that the thermal migration needs to be optimized.
In summary, the method and system for cross-host virtual machine storage live migration provided in the embodiments of the present invention are configured to live migrate a disk of a virtual machine of a source host to a target host, monitor a total speed of actual dirty data generation, a data transmission speed, and a write speed of each disk of the virtual machine in each predetermined time period after the live migration is started, after each predetermined time period is ended, determine whether live migration needs to be optimized based on the total speed of actual dirty data generation and the data transmission speed, determine a disk that needs to be optimized based on the write speed of each disk only when it is determined that live migration needs to be optimized, and reduce the write speed of the disk that needs to be optimized. The method and the device can limit the writing speed of the disk according to the actual migration state in each preset time period, limit the reading and writing performance of the virtual machine as small as possible on the basis of ensuring that the live migration can be completed, avoid the performance of the virtual machine from being greatly damaged for a long time, only reduce the writing speed of the disk needing to be optimized, and avoid limiting the writing speed of the disk needing not to be limited.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
It should be noted that, although the present invention has been described with reference to the preferred embodiments, the above embodiments are not intended to limit the present invention. It will be apparent to those skilled in the art that many changes and modifications can be made, or equivalents employed, to the presently disclosed embodiments without departing from the intended scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
It should be further understood that the terms "first," "second," "third," and the like in the description are used for distinguishing between various components, elements, steps, and the like, and are not intended to imply a logical or sequential relationship between various components, elements, steps, or the like, unless otherwise indicated or indicated.
It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. It must be noted that, as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. For example, reference to "a step" or "an apparatus" means a reference to one or more steps or apparatuses and may include sub-steps as well as sub-apparatuses. All conjunctions used should be understood in the broadest sense. And the word "or" should be understood to have the definition of logical "or" rather than the definition of logical "exclusive or" unless the context clearly dictates otherwise. Further, implementation of the methods and/or apparatus of embodiments of the present invention may include performing selected tasks manually, automatically, or in combination.
Claims (6)
1. A method for cross-host virtual machine storage live migration, which is used for live migration of a disk of a virtual machine of a source host to a target host, and is characterized by comprising the following steps:
after the hot migration is started, acquiring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period;
after each preset time period is finished, judging whether the thermomigration needs to be optimized or not based on the total speed of the actual dirty data generation and the data transmission speed; and the number of the first and second groups,
when the optimization of the hot migration is judged, determining the magnetic disks needing to be optimized based on the writing speed of each magnetic disk, and reducing the writing speed of the magnetic disks needing to be optimized in the next preset time period;
when the ratio of the actual dirty data generation total speed to the data transmission speed is larger than a first preset value and smaller than a second preset value, judging that the thermal migration needs to be optimized, wherein the first preset value is smaller than 1, and the second preset value is larger than 1;
the step of determining the disks that need to be optimized based on the write speed of each of the disks comprises: calculating the average writing speed of the magnetic disks based on the writing speed of each magnetic disk; judging whether the writing speed of each disk is greater than the average writing speed, and taking the disk with the writing speed greater than the average writing speed as the disk to be optimized;
before reducing the writing speed of the magnetic disk needing to be optimized, the method further comprises the following steps:
calculating a corresponding upper write speed limit based on the write speed of the magnetic disk to be optimized; and (c) a second step of,
after the write speed of the magnetic disk is reduced, the write speed of the magnetic disk is smaller than the corresponding upper limit of the write speed;
calculating a corresponding upper write speed limit based on the write speed of the magnetic disk to be optimized according to the following method:
wherein wsp _ i max For the upper limit of the writing speed of the disk i needing to be optimized in the next preset time period, alpha is a third preset value, and the third preset value is less than 1, and migrate _spis the data transmission speed; dirty _ sp is the total speed of the actual dirty data production; wsp _ i is the write speed of disk i for the last predetermined period of time.
2. The method of claim 1, wherein the first predetermined value ranges from 0.9 to 1 and the second predetermined value ranges from 1 to 1.8.
3. The method of claim 2, wherein when a ratio of a total speed of the actual dirty data generation to the data transfer speed is less than or equal to the first predetermined value, maintaining a write speed of each of the disks and continuing to perform the live migration.
4. A method of storing a thermal migration across host virtual machines as claimed in claim 2 or 3, wherein a thermal migration is interrupted when the ratio of the total speed of actual dirty data production and the data transfer speed is greater than or equal to the second predetermined value.
5. The method of claim 4, wherein the third predetermined value is 0.9 to 1.
6. A system for cross-host virtual machine live migration, configured to live migrate a disk of a virtual machine of a source host onto a target host, comprising:
the data monitoring module is used for acquiring the total speed of actual dirty data generation, the data transmission speed and the writing speed of each disk of the virtual machine in each preset time period after the live migration is started;
the optimization judging module is used for judging whether the thermomigration needs to be optimized or not based on the total speed generated by the actual dirty data and the data transmission speed after each preset time period is finished; and the number of the first and second groups,
the optimization execution module is used for determining the magnetic disks needing to be optimized based on the writing speed of each magnetic disk and reducing the writing speed of the magnetic disks needing to be optimized when the thermal migration needs to be optimized; when the ratio of the actual dirty data generation total speed to the data transmission speed is larger than a first preset value and smaller than a second preset value, judging that the thermal migration needs to be optimized, wherein the first preset value is smaller than 1, and the second preset value is larger than 1; the step of determining the disks that need to be optimized based on the write speed of each of the disks comprises: calculating the average writing speed of the magnetic disks based on the writing speed of each magnetic disk; judging whether the writing speed of each disk is greater than the average writing speed, and taking the disk with the writing speed greater than the average writing speed as the disk to be optimized;
before reducing the writing speed of the magnetic disk needing to be optimized, the method further comprises the following steps:
calculating a corresponding upper write speed limit based on the write speed of the magnetic disk needing to be optimized; and (c) a second step of,
after the write speed of the magnetic disk is reduced, the write speed of the magnetic disk is smaller than the corresponding upper limit of the write speed;
calculating a corresponding upper write speed limit based on the write speed of the magnetic disk to be optimized according to the following method:
wherein wsp _ i max For the upper limit of the writing speed of the disk i needing to be optimized in the next preset time period, alpha is a third preset value, and the third preset value is less than 1, and migrate _spis the data transmission speed; dirty _ sp is the total speed of the actual dirty data production; wsp _ i is the write speed of disk i for the last predetermined period of time.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010126048A1 (en) * | 2009-04-28 | 2010-11-04 | 日本電気株式会社 | Rapid movement system for virtual devices in a computing system, management device, and method and program therefor |
| CN103955399A (en) * | 2014-04-30 | 2014-07-30 | 华为技术有限公司 | Migrating method and device for virtual machine, as well as physical host |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN102521038B (en) * | 2011-12-06 | 2014-04-09 | 北京航空航天大学 | Virtual machine migration method and device based on distributed file system |
| CN102541468B (en) * | 2011-12-12 | 2015-03-04 | 华中科技大学 | Dirty data write-back system in virtual environment |
| US9626212B2 (en) * | 2014-06-28 | 2017-04-18 | Vmware, Inc. | Live migration of virtual machines with memory state sharing |
| CN104965757B (en) * | 2015-01-21 | 2018-03-30 | 深圳市腾讯计算机系统有限公司 | Method, virtual machine (vm) migration managing device and the system of live migration of virtual machine |
| CN107463424B (en) * | 2016-06-02 | 2020-01-24 | 北京金山云网络技术有限公司 | Virtual machine migration method and device |
| CN110737507B (en) * | 2019-10-12 | 2022-11-22 | 苏州浪潮智能科技有限公司 | Virtual machine migration method and device |
| CN112783605B (en) * | 2021-01-27 | 2024-02-23 | 深信服科技股份有限公司 | Method, device, equipment and storage medium for thermomigration of virtual machine |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010126048A1 (en) * | 2009-04-28 | 2010-11-04 | 日本電気株式会社 | Rapid movement system for virtual devices in a computing system, management device, and method and program therefor |
| CN103955399A (en) * | 2014-04-30 | 2014-07-30 | 华为技术有限公司 | Migrating method and device for virtual machine, as well as physical host |
Non-Patent Citations (1)
| Title |
|---|
| 虚拟机全系统在线迁移;张彬彬等;《电子学报》;20090415;第37卷(第4期);第894-899页 * |
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