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一种元数据恢复方法及相关装置_WO2016029744A1_刘洋 张克星.pdf
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2021-11-25
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(12)
(19)
(10)
(43)
2016 3 3 (03.03.2016)
W O 2016/029744 A 1
W P O P C T
(51) 分类
BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR,
H04L 29/08 (2006.01)
CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB,
GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS,
(21)
PCT/CN20 15/083226
JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU,
LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, ML,
(22)
2015 7 2 (02.07.2015)
NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA,
(25)
RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST,
SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ,
(26)
布语
VC, VN, ZA, ZM, Z
(30)
优先
(84) 指定
2014 10427894.2 2014 8 27 27.08.2014) CN
ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA,
(71)
(HUAWEI TECHNO
RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), AM, AZ,
LOGIES CO., LTD) [CN/CN]; 广
BY, KG, KZ, RU, TJ, TM), (AL, AT, BE, BG, CH,
CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE,
Guangdong 5 18129
IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO,
(CN)
RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM,
(72)
刘洋 (LIU, Yang); 广
GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Guangdong 5 18129 (CN)
公布
(ZHANG, Kexing); 广
Guangdong 5 18129 (CN )
- ( 2 1 (3
(81)
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG,
(54) Title: METADATA RECOVERY METHOD AND RELEVANT DEVICE
(54)
2 I Fig.
(57) Abstract: Disclosed are a metadata recovery method and a relevant device. The method can comprise: receiving a write opera
tion request for a target file, wherein the target file i s saved in multiple data nodes; acquiring metadata of the target file fiOm a na
menode, the metadata of the target file containing information about the multiple data nodes; generating metadata recovery informa
tion according to the metadata of the target file; and sending the metadata recovery information to at least one data node of the mul -
tiple data nodes, the metadata recovery information being used for being saved b y the at least one data node, and being sent to the
namenode for recovering the metadata when abnormality occurs to the namenode. The embodiments of the present invention can re -
cover metadata when abnormality occurs t o an NN.
(57) :
[ ]
目标
N N
of 49
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