METHOD, DEVICE AND SYSTEM FOR TAKING OVER FAULT METADATA SERVER

WIPO Patent Application WO/2010/148988

A1

A method, device and system for taking over a fault metadata server is provided in the embodiments of the present invention, wherein the method is applied to a metadata server cluster, and the metadata sever comprises a local metadata tree and a neighbor metadata tree; the local metadata tree manages the local file system, and the neighbor metadata tree corresponds to the local metadata tree of the neighbor metadata server. Said method includes the following steps: when the neighbor metadata server corresponding to the local metadata server is in working order, the local metadata server performs real-time mirror image on the local metadata tree of the neighbor metadata server by the neighbor metadata tree; when a fault occurs in the neighbor metadata server, the local metadata server, by managing the neighbor metadata tree which has been performed real-time mirror image on, takes over the neighbor metadata server with fault. Improving the responsibility of the metadata server is achieved by the technical solution in the embodiments of the present invention, further improving the responsibility of the whole distributed file storage system.

CHENG JUSHENG (CN)
XU TAO (CN)
CHEN HAO (CN)
ZHONG JILIN (CN)

PCT/CN2010/074042

December 29, 2010

June 18, 2010

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CHENGDU HUAWEI SYMANTEC TECH (CN)
CHENG JUSHENG (CN)
XU TAO (CN)
CHEN HAO (CN)
ZHONG JILIN (CN)

G06F15/16

CN101059807A	2007-10-24
US20060112140A1	2006-05-25
US20090138444A1	2009-05-28
CN101577735A	2009-11-11

DROP, LIU, YULING ET AL.: "Design and Implementation of Two-level Metadata Server in Small-Scale Cluster File system", WUHAN UNIVERSITY JOURNAL OF NATURAL SCIENCES, vol. LL, no. 6, 31 December 2006 (2006-12-31), pages 1939 - 1942

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