A method and a device for recovering client permission by a metadata server of a distributed file system
A metadata server and distributed file technology, applied in the fields of digital data protection, electronic digital data processing, computer security devices, etc., can solve the problem that other clients cannot perform metadata read and write operations normally, and improve ease of use. Effect
Inactive Publication Date: 2019-04-05
INSPUR BEIJING ELECTRONICS INFORMATION IND
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[0006] Embodiments of the present disclosure provide a method, device, device, and computer-readable storage medium for a metadata server of a distributed file system to reclaim client permissions, so as to solve the problem that the client holds metadata permissions for a long time, causing other clients to fail to perform normal operations. Status of metadata read and write operations
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[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0044] The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device compris...
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The embodiment of the invention discloses a method, a device and equipment for recovering client permission by a metadata server of a distributed file system and a computer readable storage medium. The method comprises the steps that whether the session timeout time of a metadata server and a client exceeds a preset timeout threshold value or not is judged, the session with the timeout time exceeding the preset timeout threshold value is deleted, and the session with the timeout time exceeding the preset timeout threshold value is added into a blacklist of an object storage server. And beforethe client performs the read-write operation, detecting whether a session of the metadata server corresponding to the current read-write task exists in the blacklist, and if yes, releasing the authority of holding the corresponding metadata. The current situation that other clients cannot normally perform metadata read-write operation due to the fact that the client holds the authority of metadatafor a long time is solved, the metadata server forcibly recovers the authority of the metadata, the other clients can perform normal read-write services, and the usability of the storage system is improved.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of distributed file systems, and in particular, relate to a method, device, device, and computer-readable storage medium for a distributed file system metadata server to recover client rights. Background technique [0002] With the rapid development of cloud computing and big data, the data is growing explosively. Simply increasing the number of hard disks to expand the storage capacity of the computer file system has been unable to meet the exponentially growing data storage requirements in the era of information explosion. Formal file system application was born. [0003] Distributed File System (Distributed File System) is a physical storage resource managed by a file system based on client / server mode. It is connected to nodes through a computer network and can effectively solve data storage and management problems. A file system fixed at a certain location is extended to any numbe...
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IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/604G06F21/6218G06F2221/2141
Inventor 罗浩
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND