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Access method of distributed file system and upper file system thereof

A distributed file and file system technology, applied in multi-program devices, instruments, computing, etc., can solve the problem of not being able to respond to IO-type thread synchronous IO requests in a timely manner, so as to improve the actual running time and the corresponding throughput rate, shorten the Wasted time, the effect of shortening time

Active Publication Date: 2013-09-11
ZTE CORP
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a distributed file system and an access method of the upper-level file system therein, to at least solve the problem that the above-mentioned upper-level file system cannot respond to the synchronous IO request of the IO thread in time

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  • Access method of distributed file system and upper file system thereof
  • Access method of distributed file system and upper file system thereof
  • Access method of distributed file system and upper file system thereof

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Embodiment Construction

[0025] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0026] figure 1 It is a flowchart of an access method for an upper-level file system in a distributed file system according to an embodiment of the present invention, including the following steps:

[0027] Step S 102, the IO (Input-Output, input-output) type thread in the multi-threaded application sends out a synchronous IO request for requesting access (which can be access operations such as opening, reading, and writing) to the upper-level file system;

[0028] Wherein, the multithreaded application is actually a kind of multithreaded application program (can be realized by a kind of software module), and the multithreaded application program refers to that the quantity of the thread that it con...

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Abstract

The invention discloses an access method of a distributed file system and an upper file system thereof, which comprises the steps that: IO type thread in multi-thread application sends out a synchronous IO request used for requiring to access the upper file system; an upper dispatcher is used for selecting a core thread of the upper file system to process the synchronous IO request, wherein the core thread is bound on a CPU (Central Processing Unit) of a virtual inner core and has a higher dispatching priority than a non-core thread; after processing is finished, the upper file system is used for notifying the upper dispatcher to give priority to dispatch the IO type thread; and the upper dispatcher gives priority to dispatch the IO type thread and transmit a response message of the synchronous IO request to the IO type thread. The invention shortens the time required for responding to the synchronous IO request of the IO type thread for the upper file system.

Description

technical field [0001] The invention relates to the field of data storage, in particular to a distributed file system and an access method for an upper-layer file system therein. Background technique [0002] With the rapid development of the multimedia industry, due to cost, reliability and other considerations, more and more manufacturers choose to deploy self-developed distributed upper-level storage systems in their products, so that the distributed file system has also been rapidly developed. development of. An existing distributed file system mainly includes a kernel scheduler, an upper layer file system, and a multi-threaded application program. Threads in a multi-threaded application will access the upper-level file system as needed. For example, an IO (input-output) thread in a multi-threaded application will send a synchronous IO request (such as an Open request) to access files in the upper-level file system. [0003] Different from the kernel file system, altho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06F9/46
Inventor 朱鹏夏舰波江凌生
Owner ZTE CORP
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