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《Hadoop The Definitive Guide》ch12 HBase

發布時間：2020-07-19 15:39:39 來源：網絡 閱讀：468 作者：a7272706 欄目：關系型數據庫


1. 關于HBase的介紹，http://www.searchtb.com/2011/01/understanding-hbase.html很不錯。

HBase – Hadoop Database，是一個高可靠性、高性能、面向列、可伸縮的分布式存儲系統，利用HBase技術可在廉價PC Server上搭建起大規模結構化存儲集群。

HBase是Google Bigtable的開源實現，類似Google Bigtable利用GFS作為其文件存儲系統，HBase利用Hadoop HDFS作為其文件存儲系統；Google運行MapReduce來處理Bigtable中的海量數據，HBase同樣利用Hadoop MapReduce來處理HBase中的海量數據；Google Bigtable利用 Chubby作為協同服務，HBase利用Zookeeper作為對應。

（HBase感覺更像是一個上學時學的分布式數據庫）

2. HBase安裝的版本要和Hadoop的版本對應起來，剛開始下了最新的hbase-0.94.0，但是Hadoop的版本是hadoop-0.20.203.0，在啟動HBase的時候，總是有問題。重新下載了hbase-0.90.6之后，一次就啟動成功了。


Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. [ate: /local/nomad2 ]

  2. >> /local/nomad2/hbase/hbase-0.94.0/bin/start-hbase.sh

  3. starting master, logging to /local/nomad2/hbase/hbase-0.94.0/bin/../logs/hbase-nomad2-master-ate.out

  4. SLF4J: Class path contains multiple SLF4J bindings.

  5. SLF4J: Found binding in [jar:file:/local/nomad2/hbase/hbase-0.94.0/lib/slf4j-log4j12-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]

  6. SLF4J: Found binding in [jar:file:/local/nomad2/hadoop/hadoop-0.20.203.0/lib/slf4j-log4j12-1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]

  7. SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. 

[ate: /local/nomad2 ]
>> /local/nomad2/hbase/hbase-0.94.0/bin/start-hbase.sh 
starting master, logging to /local/nomad2/hbase/hbase-0.94.0/bin/../logs/hbase-nomad2-master-ate.out
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/local/nomad2/hbase/hbase-0.94.0/lib/slf4j-log4j12-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/local/nomad2/hadoop/hadoop-0.20.203.0/lib/slf4j-log4j12-1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.

解決辦法，去掉hbase下面的lib。



Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. >> hbase classpath | tr ":" "\n" | grep -i slf4j 

>> hbase classpath | tr ":" "\n" | grep -i slf4j


3. 設置環境變量


Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. export HBASE_INSTALL=/local/nomad2/hbase/hbase-0.90.6

  2. export PATH=$PATH:$HBASE_INSTALL/bin 

export HBASE_INSTALL=/local/nomad2/hbase/hbase-0.90.6
export PATH=$PATH:$HBASE_INSTALL/bin

4. 啟動HBase



Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. [ate: /local/nomad2/hbase/hbase-0.90.6/bin ]

  2. >> start-hbase.sh

  3. starting master, logging to /local/nomad2/hbase/hbase-0.90.6/bin/../logs/hbase-nomad2-master-ate.out

  4. [ate: /local/nomad2/hbase/hbase-0.90.6/bin ]

  5. >> hbase shell

  6. HBase Shell; enter 'help<RETURN>' for list of supported commands.

  7. Type "exit<RETURN>" to leave the HBase Shell

  8. Version 0.90.6, r1295128, Wed Feb 29 14:29:21 UTC 2012


  10. hbase(main):001:0> create 'test', 'data'

  11. 0 row(s) in 1.4430 seconds


  13. hbase(main):002:0> list

  14. TABLE

  15. test

  16. 1 row(s) in 0.0420 seconds



  19. hbase(main):003:0> put 'test', 'row1', 'data:1', 'value1'

  20. 0 row(s) in 0.1500 seconds


  22. hbase(main):005:0> put 'test', 'row2', 'data:2', 'value2'

  23. 0 row(s) in 0.0230 seconds


  25. hbase(main):006:0> put 'test', 'row3', 'data:3', 'value3'

  26. 0 row(s) in 0.0220 seconds


  28. hbase(main):007:0> scan 'test'

  29. ROW COLUMN+CELL

  30. row1 column=data:1, timestamp=1341662081734, value=value1

  31. row2 column=data:2, timestamp=1341662107606, value=value2

  32. row3 column=data:3, timestamp=1341662122336, value=value3

  33. 3 row(s) in 0.0640 seconds


  35. hbase(main):008:0> disable 'test'

  36. 0 row(s) in 2.0590 seconds


  38. hbase(main):011:0> drop 'test'

  39. 0 row(s) in 1.1650 seconds


  41. hbase(main):012:0> list

  42. TABLE

  43. 0 row(s) in 0.0190 seconds 

[ate: /local/nomad2/hbase/hbase-0.90.6/bin ]
>> start-hbase.sh 
starting master, logging to /local/nomad2/hbase/hbase-0.90.6/bin/../logs/hbase-nomad2-master-ate.out
[ate: /local/nomad2/hbase/hbase-0.90.6/bin ]
>> hbase shell
HBase Shell; enter 'help<RETURN>' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version 0.90.6, r1295128, Wed Feb 29 14:29:21 UTC 2012

hbase(main):001:0> create 'test', 'data'
0 row(s) in 1.4430 seconds

hbase(main):002:0> list
TABLE                                                                                                             
test                                                                                                              
1 row(s) in 0.0420 seconds


hbase(main):003:0> put 'test', 'row1', 'data:1', 'value1'
0 row(s) in 0.1500 seconds

hbase(main):005:0> put 'test', 'row2', 'data:2', 'value2'
0 row(s) in 0.0230 seconds

hbase(main):006:0> put 'test', 'row3', 'data:3', 'value3'
0 row(s) in 0.0220 seconds

hbase(main):007:0> scan 'test'
ROW                          COLUMN+CELL                                                                       
 row1                        column=data:1, timestamp=1341662081734, value=value1                              
 row2                        column=data:2, timestamp=1341662107606, value=value2                              
 row3                        column=data:3, timestamp=1341662122336, value=value3                              
3 row(s) in 0.0640 seconds

hbase(main):008:0> disable 'test'
0 row(s) in 2.0590 seconds

hbase(main):011:0> drop 'test'
0 row(s) in 1.1650 seconds

hbase(main):012:0> list
TABLE                                                                                                          
0 row(s) in 0.0190 seconds

5. 導入數據（書上的例子）



Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. hbase(main):013:0> create 'stations', {NAME => 'info', VERSIONS => 1}

  2. 0 row(s) in 1.1100 seconds


  4. hbase(main):014:0> create 'observations', {NAME => 'data', VERSIONS => 1}

  5. 0 row(s) in 1.1060 seconds


  7. hbase(main):015:0> list

  8. TABLE

  9. observations

  10. stations

  11. 2 row(s) in 0.0210 seconds 

hbase(main):013:0> create 'stations', {NAME => 'info', VERSIONS => 1}
0 row(s) in 1.1100 seconds

hbase(main):014:0> create 'observations', {NAME => 'data', VERSIONS => 1}
0 row(s) in 1.1060 seconds

hbase(main):015:0> list
TABLE                                                                                                          
observations                                                                                                   
stations                                                                                                       
2 row(s) in 0.0210 seconds



Html代碼 《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase《Hadoop The Definitive Guide》ch12 HBase

  1. >> export HBASE_CLASSPATH=$HBASE_CLASSPATH:ch23.jar

  2. >> hbase HBaseTemperatureImporter input/ncdc/all 

>> export HBASE_CLASSPATH=$HBASE_CLASSPATH:ch23.jar
>> hbase HBaseTemperatureImporter input/ncdc/all

導入完成后，從http://ate:60010查看數據表。


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