CN114296879B - Method, storage medium and processor for supporting activity detection in process of creating opentack cloud hard disk - Google Patents
Method, storage medium and processor for supporting activity detection in process of creating opentack cloud hard disk Download PDFInfo
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- CN114296879B CN114296879B CN202111641376.7A CN202111641376A CN114296879B CN 114296879 B CN114296879 B CN 114296879B CN 202111641376 A CN202111641376 A CN 202111641376A CN 114296879 B CN114296879 B CN 114296879B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000008093 supporting effect Effects 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 15
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
Abstract
The invention discloses a method, a storage medium and a processor for supporting activity detection in a process of creating an opentack cloud hard disk, wherein the method comprises the following steps: s1: adding a monitoring module in the client-volume for monitoring activities of creating a cloud hard disk and downloading; s2: nova initiates a request for creating a cloud hard disk, continuously acquires state information of the cloud hard disk by accessing a client-api, and judges: 1) If the acquired state information of the cloud hard disk is updated relative to the last query result, the cloud hard disk creating process is active, and the timeout timing data are reset; 2) If the acquired state information of the cloud hard disk is not updated relative to the last query result, the active data is not changed, the overtime timing is continuously increased, the step S2 is repeated until the overtime timing exceeds a set threshold, and the cloud hard disk is failed to be established. By setting the monitoring module, the change of the active data in each inquiry is judged, so that the possibility of error timeout can be greatly reduced.
Description
Technical Field
The invention belongs to the technical field of virtualized computing, and particularly relates to a method, a storage medium and a processor for supporting activity detection in a process of creating an opentack cloud hard disk.
Background
Cloud hard disks are widely accepted and employed in cloud computing virtualization applications as block storage devices that are accessible across nodes. In openstack, we typically create a mirror-based cloud hard disk as the system disk for the virtual machine, creating more blank cloud hard disks as additional disks. When creating a cloud hard disk based on a mirror image, nova needs to wait for the cloud hard disk to be ready before the cloud hard disk can be mounted in a newly created virtual machine.
When creating a virtual machine based on a cloud hard disk, nova needs to wait for a cander to create the cloud hard disk, and the time consumption of this process is difficult to determine because of a relatively large number of factors. In the current software implementation, a time-out duration is set in the nova configuration file, the duration is controlled by a query interval (block_device_allocation_retries) and a maximum number of queries (block_device_allocation_retries_interval), and if the waiting duration exceeds the product of the two, waiting is not continued. When the cloud hard disk creation process is time-consuming, such as slow download image, timeout easily occurs, and virtual machine creation failure is finally caused, as shown in fig. 1.
Aiming at the problems, the traditional solution method mainly comprises the following steps: (1) manually adjusting the query interval and/or the query times; (2) configuring a mirrored disk cache. The time span required by different cloud hard disks and mirror images is greatly different, and the timeout duration is greatly adjusted, so that the due meaning of the timeout duration is lost. The latter is an application that uses space to change time, and is not suitable in some situations, such as space being less abundant, or cloud hard disk being created for the first time based on the mirror image.
Disclosure of Invention
The invention aims to provide a method, a storage medium and a processor for supporting activity detection in a process of creating an opentack cloud hard disk, and solves the technical problem that when a cloud hard disk-based virtual machine is created in the prior art, time-out occurs easily when the cloud hard disk creation process is time-consuming, and finally virtual machine creation failure is caused.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method for supporting activity detection in a process of creating an opentack cloud hard disk comprises the following steps:
s1: adding a monitoring module in the client-volume for monitoring activities of creating a cloud hard disk and downloading;
s2: nova initiates a request for creating a cloud hard disk, continuously acquires state information of the cloud hard disk by accessing a client-api, and judges:
1) If the acquired state information of the cloud hard disk is updated relative to the last query result, the cloud hard disk creating process is active, and the timeout timing data are reset;
2) If the acquired state information of the cloud hard disk is not updated relative to the last query result and the active data is not changed, continuously increasing the timeout timer, and repeating the step S2 until the timeout timer exceeds a set threshold value, wherein the cloud hard disk fails to be established; that is, only when the status information is continuously in the creating or downloading state and the active data is not updated, the failure of the whole cloud hard disk creation process is triggered according to the timeout period.
In the invention, after nova initiates a request for creating the cloud hard disk, state information of the cloud hard disk is still acquired by accessing a cander-api, but the cloud hard disk is judged to be failed to be created when the timeout time is equal to the product of the query interval and the query times, but the cloud hard disk is dependent on the keep-alive information. Only when the status is continuous in creating or downloading and the keep-alive information is not updated, the failure of the whole flow is triggered according to the timeout duration. In the case where keep-alive information is continuously updated again, the timer is always reset. This can greatly reduce the possibility of false timeouts and make the setting of the query interval and number of queries more meaningful.
Further optimizing, the monitoring module monitors the progress bar size increase condition of the cloud hard disk download file, and takes the progress bar size increase condition as the activity data; and updating the acquired active data to a database along with the cloud hard disk state information record, wherein nova inquires the acquired information of the cloud hard disk through a cander-api and simultaneously contains the active information.
Further optimizing, wherein the timeout setting threshold is equal to the product of the query interval duration and the number of queries; the query interval duration is a set value.
A computer readable storage medium, the computer readable storage medium comprising a stored program, wherein the computer readable storage medium is controlled to execute the method for supporting the activity detection of the process of creating an opentack cloud hard disk when the program runs.
A processor supporting the detection of the activity of the process of creating an opentack cloud hard disk, wherein the processor is used for running a program, and the method supporting the detection of the activity of the process of creating the opentack cloud hard disk is executed when the program runs.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
according to the cloud hard disk management method and device, the monitoring module is arranged, after nova initiates a request for creating the cloud hard disk, state information of the cloud hard disk is still acquired through accessing the cander-api, but the cloud hard disk is judged to be failed to be created when the timeout duration is equal to the product of the query interval and the query times, and the cloud hard disk is dependent on the keep-alive information. Only when the status is continuous in creating or downloading and the keep-alive information is not updated, the failure of the whole flow is triggered according to the timeout duration. In the case where keep-alive information is continuously updated again, the timer is always reset. This can greatly reduce the possibility of false timeouts and make the setting of the query interval and number of queries more meaningful.
Drawings
FIG. 1 is a schematic flow chart of creating an opentack cloud hard disk side in the prior art;
FIG. 2 is a schematic flow chart of a method for supporting activity detection in the process of creating an opentack cloud hard disk;
fig. 3 is a flowchart supporting creation of an openstack cloud hard disk according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Embodiment one:
as shown in fig. 2 and 3, a method for supporting activity detection in a process of creating an openstack cloud hard disk includes the following steps:
s1: a monitor module (monitor) is added in the client-volume for monitoring the activity of creating cloud hard disk and downloading process. Specifically, the volume change of the target output is detected according to the different rear end drives. As the download process, the size increase of the temporary download file is checked as the active data. The server-volume is a service deployed on a storage node, and the main function of the server-volume is to perform one-layer abstract encapsulation on the back-end storage, provide a unified interface for a user, and perform storage-related operations by calling a back-end storage drive API.
S2: nova initiates a request for creating a cloud hard disk, continuously acquires state information of the cloud hard disk by accessing a client-api, and judges:
1) If the acquired state information of the cloud hard disk is updated relative to the last query result, the cloud hard disk creating process is active, and the timeout timing data are reset;
2) If the acquired state information of the cloud hard disk is not updated relative to the last query result and the active data is not changed, continuously increasing the timeout timer, and repeating the step S2 until the timeout timer exceeds a set threshold value, wherein the cloud hard disk fails to be established; that is, only when the status information is continuously in the creating or downloading state and the active data is not updated, the failure of the whole cloud hard disk creation process is triggered according to the timeout period. This shows that the actual cloud hard disk creation process is stalled for a long time, and the timeout mechanism works in this case, avoiding unnecessary waiting for a long time.
In the invention, after nova initiates a request for creating the cloud hard disk, state information of the cloud hard disk is still acquired by accessing a cander-api, but the cloud hard disk is judged to be failed to be created when the timeout time is equal to the product of the query interval and the query times, but the cloud hard disk is dependent on the keep-alive information. Only when the status is continuous in creating or downloading and the keep-alive information is not updated, the failure of the whole flow is triggered according to the timeout duration. In the case where keep-alive information is continuously updated again, the timer is always reset. This can greatly reduce the possibility of false timeouts and make the setting of the query interval and number of queries more meaningful.
In this embodiment, the monitoring module monitors the progress bar size increase condition of the cloud hard disk download file, and uses the progress bar size increase condition as the activity data; and updating the acquired active data to a database along with the cloud hard disk state information record, wherein nova inquires the acquired information of the cloud hard disk through a cander-api and simultaneously contains the active information.
In this embodiment, the timeout threshold is equal to a product of the query interval duration and the number of queries; the query interval duration is a set value.
Embodiment two:
a computer readable storage medium, the computer readable storage medium comprising a stored program, wherein the computer readable storage medium is controlled to execute the method for supporting the activity detection of the process of creating an opentack cloud hard disk when the program runs.
Embodiment III:
a processor supporting the detection of the activity of the process of creating an opentack cloud hard disk, wherein the processor is used for running a program, and the method supporting the detection of the activity of the process of creating the opentack cloud hard disk is executed when the program runs.
The above examples are given for clarity of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (4)
1. A method for supporting activity detection in a process of creating an opentack cloud hard disk is characterized by comprising the following steps:
s1: adding a monitoring module in the client-volume for monitoring activities of creating a cloud hard disk and downloading;
s2: nova initiates a request for creating a cloud hard disk, continuously acquires state information of the cloud hard disk by accessing a client-api, and judges:
1) If the acquired state information of the cloud hard disk is updated relative to the last query result, the cloud hard disk creating process is active, and the timeout timing data are reset;
2) If the acquired state information of the cloud hard disk is not updated relative to the last query result and the active data is not changed, continuously increasing the timeout timer, and repeating the step S2 until the timeout timer exceeds a set threshold value, wherein the cloud hard disk fails to be established; that is, only when the status information is continuously in creating or downloading and the active data is not updated, the failure of the whole cloud hard disk creation process is triggered according to the timeout period;
the monitoring module monitors the size increase condition of a progress bar of the cloud hard disk download file, and takes the progress bar as active data; and updating the acquired active data to a database along with the cloud hard disk state information record, wherein nova inquires the acquired information of the cloud hard disk through a cander-api and simultaneously contains the active information.
2. The method for supporting activity detection in creating an opentack cloud hard disk according to claim 1, wherein the timeout setting threshold is equal to a product of a query interval duration and a number of queries; the query interval duration is a set value.
3. A computer readable storage medium, characterized in that the computer readable storage medium comprises a stored program, wherein the device in which the computer readable storage medium is controlled to execute the method for supporting the activity detection of the process of creating an openstack cloud hard disk according to any one of claims 1-2 when the program runs.
4. A processor supporting the detection of the activity of a process for creating an opentack cloud hard disk, wherein the processor is configured to run a program, and wherein the program runs the method supporting the detection of the activity of a process for creating an opentack cloud hard disk according to any one of claims 1-2.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9645839B2 (en) * | 2010-10-27 | 2017-05-09 | Microsoft Technology Licensing, Llc | Stateful applications operating in a stateless cloud computing environment |
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Patent Citations (6)
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| CN107346217A (en) * | 2017-07-17 | 2017-11-14 | 郑州云海信息技术有限公司 | A kind of cloud hard disk management method, cloud computing management platform and virtual platform |
| CN109407992A (en) * | 2018-11-01 | 2019-03-01 | 郑州云海信息技术有限公司 | A kind of method and apparatus for creating cloud hard disk |
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