Hbase

HBase 原理及应用刘景龙 [email_address] 2011-08-23

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HBase 实现原理 - HBase 是什么？ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HBase feature (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HBase feature (2) s(Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HBase feature (4) ,[object Object],[object Object],[object Object],[object Object]

HBase 不是什么！ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

数据模型 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

数据模型 ,[object Object],[object Object],[object Object],[object Object],[object Object]

体系结构 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

数据索引 ,[object Object],[object Object],[object Object],[object Object],-ROOT- ZK-znode 在 -ROOT- 和 .META. region 中记录大小约 1KB ，按 region 默认大小 256MB 计算，意味着 ROOT region 能映射 2.6 x 10 5 个 .META. region ，依次能映射总的 6.9 x 10 10 个 user region ，意味着大约是 1.8 x 10 19 (2 64 ) 字节用户数据（即 2 14 PB ）

数据物理存储 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

HBase 性能 ,[object Object],[object Object],[object Object],[object Object],Experiment (client Buffer enable) # of Tablet Servers Region server: 4 Google(1) Google(50) 1 client 4 client Random Reads 1465 1848 1212 593 Random Reads (mem) Not yet implemented Not yet implemented 10811 3745 Random Writes 12646 4889 8850 3745 Sequential Reads 4374 3995 4425 2463 Sequential Writes 12682 7204 8547 3623 scan 18898 19979 15385 10526

HBase 性能 ,[object Object],[object Object],[object Object],[object Object],Experiment (client Buffer disable) # of Tablet Servers Region server: 4 Google(1) Google(50) 1 client 4 client Random Reads 1517 1822 1212 593 Random Reads (mem) Not yet implemented Not yet implemented 10811 3745 Random Writes 3929 1984 8850 3745 Sequential Reads 4789 4309 4425 2463 Sequential Writes 3495 2205 8547 3623 scan 24775 24855 15385 10526

HBase 性能 ,[object Object],[object Object],[object Object],[object Object],Experiment (client Buffer disable and batch operation) Region server:4 / 1 client / 1 thread row num per batch 5 10 15 20 25 30 45 100 Sequential Writes 5000 5882 10000 15384 13888 15000 21428 27272

[email_address] ,[object Object],[object Object],[object Object]

为什么选择 HBase ？ ,[object Object],[object Object],[object Object],[object Object]

什么是 puma ,[object Object],[object Object],[object Object],[object Object],[object Object]

适合场景 ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object]

Hbase

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