Method, terminal, device and computer readable storage medium for improving the performance of virtual machine

• US 10,509,710 B2
• Filed: 03/14/2017
• Issued: 12/17/2019
• Est. Priority Date: 07/22/2016
• Status: Active Grant

• Current Assignee: Ping An Technology Company Limited (Ping An Insurance (Group) Company of China, Ltd.)
• Original Assignee: Ping An Technology Company Limited (Ping An Insurance (Group) Company of China, Ltd.)
• Inventors: Zhang, Qiguo
• Primary Examiner(s): Maskulinski, Michael
• Application Number:
  US15/578,702
• Publication Number:
  US 20190227891A1
• Time in Patent Office: 1,008 Days
• CPC Class Codes: G06F 11/0793 Remedial or corrective actions recovery from an exception in an instruction pipeline G06F9/3861; by retry G06F11/1402; for recovering from a failure of a protocol instance or entity H04L69/40
• CPC Class Codes: G06F 11/14 Error detection or correction of the data by redundancy in operation G06F11/16 takes precedence
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 11/1484 involving virtual machines
• CPC Class Codes: G06F 11/2094 Redundant storage or storage space G06F11/2056 takes precedence
• CPC Class Codes: G06F 2009/45575 Starting, stopping, suspending or resuming virtual machine instances
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 2201/815 Virtual middleware or OS functionality using virtual machines to implement generic software techniques for error detection or fault masking G06F11/1484
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency ensuring consistency in mirrored systems G06F11/2064
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

Disclosed are a method, a terminal, a device, and a computer readable storage medium for improving the performance of a virtual machine. The method includes determining whether a failure of a disk of a host having a virtual disk file stored therein occurs if a virtual machine sends a read request or a write request to the virtual disk file; sending the read or write request to a storage device which is associated with the host and has the virtual disk file stored therein if the failure occurs, so that the storage device is able to feed back data; detecting whether the disk of the host is recovered if the data fed back from the write request is received; and writing the data fed back from the write request into the disk of the host if the disk of the host is recovered.

Claims

1. A method for improving a performance of a virtual machine, comprising:

determining whether or not a failure of a disk of a host having a virtual disk file stored therein occurs if a virtual machine sends a read request or a write request to the virtual disk file;

if the failure occurs, sending the read request or the write request to a storage device which is associated with the host and has the virtual disk file stored therein so that the storage device is able to feed back corresponding data;

detecting whether or not a corresponding disk of the host is recovered if the data fed back from the write request is received; and

writing the data fed back from the write request into the corresponding disk of the host if the disk of the host is recovered;

the method further comprising;

determining whether or not a congestion of the read request or write request occurs if the virtual machine sends the read request or the write request to the virtual disk file;

buffering the read request or write request in a memory allocated by the host if no congestion occurs;

determining whether or not a failure of the disk of the host having the virtual disk file stored therein occurs; and

sending the buffered read request or write request to a storage device, which is associated with the host and has the virtual disk file stored therein, according to a predetermined order if a failure occurs, so that the storage device is able to feed back corresponding data.

2. The method of claim 1, further comprising:

executing the read request or write request in a corresponding disk of the host if no failure of the disk of the host occurs; and

writing the data fed back from the write request into a storage device associated with the host and has the virtual disk file stored therein if the write request is executed.

3. The method of claim 1, further comprising the step of turning on all virtual machines of the storage device associated with the host if the disk of the host cannot be recovered.

4. The method of claim 1, further comprising:

associating another storage device with the storage device associated with the host if the failure occurred in the virtual disk file stored in the disk of the host cannot be recovered; and

moving all virtual disk files of the host from the storage device associated with the host to the another storage device.

5. A device, comprising a processor, and an input device, an output device, and a memory, coupled to the processor;

wherein the input device is provided for a user to input into a read request or a write request into a virtual disk file;

the output device is provided for outputting data fed back from the read request or write request;

the memory, is provided for storing program data of the host and the storage device associated with the host, the read request or write request, and other callable and operable program data; and

the processor, is provided for calling the program data stored in the memory and executing the steps of determining whether or not a failure of a disk of a host having a virtual disk file stored therein occurs if a virtual machine sends a read request or a write request to the virtual disk file;

if the failure occurs, sending the read request or the write request to a storage device which is associated with the host and has the virtual disk file stored therein so that the storage device is able to feed back corresponding data;

detecting whether or not a corresponding disk of the host is recovered if the data fed back from the write request is received; and

writing the data fed back from the write request into the corresponding disk of the host if the disk of the host is recovered;

wherein the processor further executes the steps of;

determining whether or not a congestion of the read request or write request occurs if the virtual machine sends the read request or the write request to the virtual disk file;

buffering the read request or write request in a memory allocated by the host if no congestion occurs;

determining whether or not a failure of the disk of the host having the virtual disk file stored therein occurs; and

sending the buffered read request or write request to a storage device, which is associated with the host and has the virtual disk file stored therein, according to a predetermined order if a failure occurs, so that the storage device is able to feed back corresponding data.

6. The device of claim 5, wherein the processor further executes the steps of:

executing the read request or write request in a corresponding disk of the host if no failure of the disk of the host occurs; and

writing the data fed back from the write request into a storage device associated with the host and has the virtual disk file stored therein if the write request is executed.

7. The device of claim 5, wherein the processor further executes the step of:

turning on all virtual machines of the storage device associated with the host if the disk of the host cannot be recovered.

8. The device of claim 5, wherein the processor further executes the steps of:

associating another storage device with the storage device associated with the host if the failure occurred in the virtual disk file stored in the disk of the host cannot be recovered; and

moving all virtual disk files of the host from the storage device associated with the host to the another storage device.

9. A non-transitory computer readable storage medium, provided for storing one or more programs executed by one or more processors, and executing the steps of:

determining whether or not a failure of a disk of a host having a virtual disk file stored therein occurs if a virtual machine sends a read request or a write request to the virtual disk file;

if the failure occurs, sending the read request or the write request to a storage device which is associated with the host and has the virtual disk file stored therein so that the storage device is able to feed back corresponding data;

detecting whether or not a corresponding disk of the host is recovered if the data fed back from the write request is received; and

writing the data fed back from the write request into the corresponding disk of the host if the disk of the host is recovered;

wherein the processors further execute the steps of;

determining whether or not a congestion of the read request or write request occurs if the virtual machine sends the read request or the write request to the virtual disk file;

buffering the read request or write request in a memory allocated by the host if no congestion occurs;

determining whether or not a failure of the disk of the host having the virtual disk file stored therein occurs; and

sending the buffered read request or write request to a storage device, which is associated with the host and has the virtual disk file stored therein, according to a predetermined order if a failure occurs, so that the storage device is able to feed back corresponding data.

10. The non-transitory computer readable storage medium of claim 9, wherein the processors further execute the steps of:

executing the read request or write request in a corresponding disk of the host if no failure of the disk of the host occurs; and

writing the data fed back from the write request into a storage device associated with the host and has the virtual disk file stored therein if the write request is executed.

11. The non-transitory computer readable storage medium of claim 9, wherein the processors further execute the step of:

turning on all virtual machines of the storage device associated with the host if the disk of the host cannot be recovered.

12. The non-transitory computer readable storage medium of claim 9, wherein the processors further execute the steps of:

associating another storage device with the storage device associated with the host if the failure occurred in the virtual disk file stored in the disk of the host cannot be recovered; and

moving all virtual disk files of the host from the storage device associated with the host to the another storage device.