H2O.ai初步使用

1.官网下载最新稳定版，https://www.h2o.ai/download/ ，如果点击下载无反应，请使用ie浏览器

2.解压h2o-3.18.0.10.zip到目录h2o-3.18.0.10

3.执行命令

cd h2o-3.18.0.10

java -jar h2o.jar -name clusterName

选项参考http://docs.h2o.ai/h2o/latest-stable/h2o-docs/starting-h2o.html#h2o-options

[root@eureka- h2o-3.18.0.10]# java -jar h2o.jar -name clusterName

- ::43.010 192.168.0.80:      main      INFO: Found XGBoost backend with library: xgboost4j_gpu

- ::43.020 192.168.0.80:      main      INFO: XGBoost supported backends: [WITH_GPU, WITH_OMP]

- ::43.020 192.168.0.80:      main      INFO: ----- H2O started  -----

- ::43.020 192.168.0.80:      main      INFO: Build git branch: rel-wolpert

- ::43.020 192.168.0.80:      main      INFO: Build git hash: b26ef10d0f1b4dd26b8227c1672ee47e0e893fec

- ::43.020 192.168.0.80:      main      INFO: Build git describe: jenkins-3.18.0.9--gb26ef10

- ::43.021 192.168.0.80:      main      INFO: Build age:  days,  hours and  minutes

- ::43.021 192.168.0.80:      main      INFO: Built by: 'jenkins'

- ::43.021 192.168.0.80:      main      INFO: Built on: '2018-05-22 08:13:35'

- ::43.021 192.168.0.80:      main      INFO: Watchdog Build git branch: (unknown)

- ::43.021 192.168.0.80:      main      INFO: Watchdog Build git hash: (unknown)

- ::43.021 192.168.0.80:      main      INFO: Watchdog Build git describe: (unknown)

- ::43.021 192.168.0.80:      main      INFO: Watchdog Build project version: (unknown)

- ::43.021 192.168.0.80:      main      INFO: Watchdog Built by: (unknown)

- ::43.021 192.168.0.80:      main      INFO: Watchdog Built on: (unknown)

- ::43.021 192.168.0.80:      main      INFO: XGBoost Build git branch: (unknown)

- ::43.022 192.168.0.80:      main      INFO: XGBoost Build git hash: (unknown)

- ::43.022 192.168.0.80:      main      INFO: XGBoost Build git describe: (unknown)

- ::43.022 192.168.0.80:      main      INFO: XGBoost Build project version: (unknown)

- ::43.022 192.168.0.80:      main      INFO: XGBoost Built by: (unknown)

- ::43.022 192.168.0.80:      main      INFO: XGBoost Built on: (unknown)

- ::43.022 192.168.0.80:      main      INFO: KrbStandalone Build git branch: (unknown)

- ::43.022 192.168.0.80:      main      INFO: KrbStandalone Build git hash: (unknown)

- ::43.022 192.168.0.80:      main      INFO: KrbStandalone Build git describe: (unknown)

- ::43.022 192.168.0.80:      main      INFO: KrbStandalone Build project version: (unknown)

- ::43.022 192.168.0.80:      main      INFO: KrbStandalone Built by: (unknown)

- ::43.023 192.168.0.80:      main      INFO: KrbStandalone Built on: (unknown)

- ::43.023 192.168.0.80:      main      INFO: Processed H2O arguments: [-name, clusterName]

- ::43.023 192.168.0.80:      main      INFO: Java availableProcessors:

- ::43.023 192.168.0.80:      main      INFO: Java heap totalMemory: 964.5 MB

- ::43.023 192.168.0.80:      main      INFO: Java heap maxMemory: 13.95 GB

- ::43.023 192.168.0.80:      main      INFO: Java version: Java 1.8.0_121 (from Oracle Corporation)

- ::43.023 192.168.0.80:      main      INFO: JVM launch parameters: []

- ::43.023 192.168.0.80:      main      INFO: OS version: Linux 3.10.-.el7.x86_64 (amd64)

- ::43.023 192.168.0.80:      main      INFO: Machine physical memory: 62.76 GB

- ::43.023 192.168.0.80:      main      INFO: X-h2o-cluster-id:

- ::43.023 192.168.0.80:      main      INFO: User name: 'root'

- ::43.023 192.168.0.80:      main      INFO: IPv6 stack selected: false

- ::43.024 192.168.0.80:      main      INFO: Possible IP Address: ens160 (ens160), fe80::::df23:d65d:4aa8:62f5%ens160

- ::43.024 192.168.0.80:      main      INFO: Possible IP Address: ens160 (ens160), 192.168.0.80

- ::43.024 192.168.0.80:      main      INFO: Possible IP Address: lo (lo), :::::::%lo

- ::43.024 192.168.0.80:      main      INFO: Possible IP Address: lo (lo), 127.0.0.1

- ::43.024 192.168.0.80:      main      INFO: H2O node running in unencrypted mode.

- ::43.026 192.168.0.80:      main      INFO: Internal communication uses port:

- ::43.026 192.168.0.80:      main      INFO: Listening for HTTP and REST traffic on http://192.168.0.80:54321/

- ::43.027 192.168.0.80:      main      INFO: H2O cloud name: 'clusterName' on /192.168.0.80:, static configuration based on -flatfile null

- ::43.027 192.168.0.80:      main      INFO: If you have trouble connecting, try SSH tunneling from your local machine (e.g., via port ):

- ::43.027 192.168.0.80:      main      INFO:   . Open a terminal and run 'ssh -L 55555:localhost:54321 root@192.168.0.80'

- ::43.027 192.168.0.80:      main      INFO:   . Point your browser to http://localhost:55555

- ::43.735 192.168.0.80:      main      INFO: Log dir: '/tmp/h2o-root/h2ologs'

- ::43.736 192.168.0.80:      main      INFO: Cur dir: '/opt/software/h2o-3.18.0.10'

- ::43.740 192.168.0.80:      main      INFO: HDFS subsystem successfully initialized

- ::43.743 192.168.0.80:      main      INFO: S3 subsystem successfully initialized

- ::43.743 192.168.0.80:      main      INFO: Flow dir: '/root/h2oflows'

- ::43.757 192.168.0.80:      main      INFO: Cloud of size  formed [/192.168.0.80:]

- ::43.770 192.168.0.80:      main      INFO: Registered parsers: [GUESS, ARFF, XLS, SVMLight, AVRO, PARQUET, CSV]

- ::43.770 192.168.0.80:      main      INFO: Watchdog extension initialized

- ::43.770 192.168.0.80:      main      INFO: XGBoost extension initialized

- ::43.770 192.168.0.80:      main      INFO: KrbStandalone extension initialized

- ::43.770 192.168.0.80:      main      INFO: Registered  core extensions in: 256ms

- ::43.770 192.168.0.80:      main      INFO: Registered H2O core extensions: [Watchdog, XGBoost, KrbStandalone]

- ::44.035 192.168.0.80:      main      INFO: Registered:  REST APIs in: 264ms

- ::44.035 192.168.0.80:      main      INFO: Registered REST API extensions: [XGBoost, Algos, AutoML, Core V3, Core V4]

- ::44.149 192.168.0.80:      main      INFO: Registered:  schemas in 113ms

- ::44.150 192.168.0.80:      main      INFO: H2O started in 1691ms

- ::44.150 192.168.0.80:      main      INFO:

- ::44.150 192.168.0.80:      main      INFO: Open H2O Flow in your web browser: http://192.168.0.80:54321

- ::44.150 192.168.0.80:      main      INFO:

4.找另一台机器或者重新打开一个shell命令窗口，再次输入命令

java -jar h2o.jar -name clusterName

会自动根据-name选项查找存在的集群

- ::22.648 192.168.0.166:     main      INFO: Found XGBoost backend with library: xgboost4j_gpu

- ::22.661 192.168.0.166:     main      INFO: XGBoost supported backends: [WITH_GPU, WITH_OMP]

- ::22.661 192.168.0.166:     main      INFO: ----- H2O started  -----

- ::22.661 192.168.0.166:     main      INFO: Build git branch: rel-wolpert

- ::22.661 192.168.0.166:     main      INFO: Build git hash: b26ef10d0f1b4dd26b8227c1672ee47e0e893fec

- ::22.661 192.168.0.166:     main      INFO: Build git describe: jenkins-3.18.0.9--gb26ef10

- ::22.661 192.168.0.166:     main      INFO: Build age:  days,  hours and  minutes

- ::22.661 192.168.0.166:     main      INFO: Built by: 'jenkins'

- ::22.662 192.168.0.166:     main      INFO: Built on: '2018-05-22 08:13:35'

- ::22.662 192.168.0.166:     main      INFO: Watchdog Build git branch: (unknown)

- ::22.662 192.168.0.166:     main      INFO: Watchdog Build git hash: (unknown)

- ::22.662 192.168.0.166:     main      INFO: Watchdog Build git describe: (unknown)

- ::22.662 192.168.0.166:     main      INFO: Watchdog Build project version: (unknown)

- ::22.662 192.168.0.166:     main      INFO: Watchdog Built by: (unknown)

- ::22.662 192.168.0.166:     main      INFO: Watchdog Built on: (unknown)

- ::22.662 192.168.0.166:     main      INFO: XGBoost Build git branch: (unknown)

- ::22.662 192.168.0.166:     main      INFO: XGBoost Build git hash: (unknown)

- ::22.663 192.168.0.166:     main      INFO: XGBoost Build git describe: (unknown)

- ::22.663 192.168.0.166:     main      INFO: XGBoost Build project version: (unknown)

- ::22.663 192.168.0.166:     main      INFO: XGBoost Built by: (unknown)

- ::22.663 192.168.0.166:     main      INFO: XGBoost Built on: (unknown)

- ::22.663 192.168.0.166:     main      INFO: KrbStandalone Build git branch: (unknown)

- ::22.663 192.168.0.166:     main      INFO: KrbStandalone Build git hash: (unknown)

- ::22.663 192.168.0.166:     main      INFO: KrbStandalone Build git describe: (unknown)

- ::22.663 192.168.0.166:     main      INFO: KrbStandalone Build project version: (unknown)

- ::22.663 192.168.0.166:     main      INFO: KrbStandalone Built by: (unknown)

- ::22.664 192.168.0.166:     main      INFO: KrbStandalone Built on: (unknown)

- ::22.664 192.168.0.166:     main      INFO: Processed H2O arguments: [-name, clusterName]

- ::22.664 192.168.0.166:     main      INFO: Java availableProcessors:

- ::22.664 192.168.0.166:     main      INFO: Java heap totalMemory: 88.5 MB

- ::22.664 192.168.0.166:     main      INFO: Java heap maxMemory: 1.27 GB

- ::22.664 192.168.0.166:     main      INFO: Java version: Java 1.8.0_77 (from Oracle Corporation)

- ::22.664 192.168.0.166:     main      INFO: JVM launch parameters: []

- ::22.664 192.168.0.166:     main      INFO: OS version: Linux 2.6.-.el6.x86_64 (amd64)

- ::22.664 192.168.0.166:     main      INFO: Machine physical memory: 5.72 GB

- ::22.665 192.168.0.166:     main      INFO: X-h2o-cluster-id:

- ::22.665 192.168.0.166:     main      INFO: User name: 'root'

- ::22.665 192.168.0.166:     main      INFO: IPv6 stack selected: false

- ::22.665 192.168.0.166:     main      INFO: Possible IP Address: eth1 (eth1), fe80::::20c:29ff:fe29:d906%eth1

- ::22.665 192.168.0.166:     main      INFO: Possible IP Address: eth1 (eth1), 192.168.0.166

- ::22.665 192.168.0.166:     main      INFO: Possible IP Address: lo (lo), :::::::%lo

- ::22.665 192.168.0.166:     main      INFO: Possible IP Address: lo (lo), 127.0.0.1

- ::22.665 192.168.0.166:     main      INFO: H2O node running in unencrypted mode.

- ::22.668 192.168.0.166:     main      INFO: Internal communication uses port:

- ::22.668 192.168.0.166:     main      INFO: Listening for HTTP and REST traffic on http://192.168.0.166:54323/

- ::22.669 192.168.0.166:     main      INFO: H2O cloud name: 'clusterName' on /192.168.0.166:, static configuration based on -flatfile null

- ::22.669 192.168.0.166:     main      INFO: If you have trouble connecting, try SSH tunneling from your local machine (e.g., via port ):

- ::22.669 192.168.0.166:     main      INFO:   . Open a terminal and run 'ssh -L 55555:localhost:54323 root@192.168.0.166'

- ::22.669 192.168.0.166:     main      INFO:   . Point your browser to http://localhost:55555

- ::23.457 192.168.0.166:     main      INFO: Log dir: '/tmp/h2o-root/h2ologs'

- ::23.458 192.168.0.166:     main      INFO: Cur dir: '/opt/software'

- ::23.462 192.168.0.166:     main      INFO: HDFS subsystem successfully initialized

- ::23.466 192.168.0.166:     main      INFO: S3 subsystem successfully initialized

- ::23.466 192.168.0.166:     main      INFO: Flow dir: '/root/h2oflows'

- ::23.481 192.168.0.166:     main      INFO: Cloud of size  formed [/192.168.0.166:]

- ::23.518 192.168.0.166:     main      INFO: Registered parsers: [GUESS, ARFF, XLS, SVMLight, AVRO, PARQUET, CSV]

- ::23.519 192.168.0.166:     main      INFO: Watchdog extension initialized

- ::23.519 192.168.0.166:     main      INFO: XGBoost extension initialized

- ::23.519 192.168.0.166:     main      INFO: KrbStandalone extension initialized

- ::23.519 192.168.0.166:     main      INFO: Registered  core extensions in: 269ms

- ::23.519 192.168.0.166:     main      INFO: Registered H2O core extensions: [Watchdog, XGBoost, KrbStandalone]

- ::23.972 192.168.0.166:     main      INFO: Registered:  REST APIs in: 452ms

- ::23.980 192.168.0.166:     main      INFO: Registered REST API extensions: [XGBoost, Algos, AutoML, Core V3, Core V4]

- ::24.391 192.168.0.166:     main      INFO: Registered:  schemas in 410ms

- ::24.391 192.168.0.166:     main      INFO: H2O started in 2369ms

- ::24.391 192.168.0.166:     main      INFO:

- ::24.400 192.168.0.166:     main      INFO: Open H2O Flow in your web browser: http://192.168.0.166:54323

- ::24.400 192.168.0.166:     main      INFO:

- ::26.961 192.168.0.166:     FJ--  INFO: Cloud of size  formed [/192.168.0.80:, /192.168.0.166:]

5. 打开浏览器，输入网址

http://192.168.0.166:54323
会看到h2o的flow ui界面

6. 页面使用

6.1数据导入
选择左侧帮助部分的导入数据，importFiles

  页面下方会显示出导入数据的界面，在search文本框上输入服务器上文件的路径，点击右侧的搜索按钮，页面会列出所有查到到的文件。然后点击Add all,没问题后点击import按钮

6.2 导入本地客户端数据

如果服务器上不存在要分析的文件，你可以选择上传自己的文件

6.3 解析导入的数据

如果你页面刷新了或者页面数据太乱了，你可以在getFrames里找到你刚才导入的数据集

找到我们刚才导入的数据集，点击parse按钮，

你可以自己输入列名，选择数据类型及其他修改，最后点击parse完成数据集的格式处理

点击上图中的view按钮，会显示下图，然后点击下图中的view data,会进行数据预览

数据预览查看：

parse完数据之后，你会发现数据集的扩展名已经由我们的.csv转为.hex，刷新一下页面，点击getFrames,

6.4 拆分数据集，

点击进入数据集，点击split按钮，

选择输入拆分比例，会拆分成多个数据集

6.5创建模型

点击顶菜单的'model -- k-meas'

选择算法，这里选择k-means,输入训练集training_frame和验证集validation_frame,或调整其他参数。

点击底部的create model按钮，会生成一个job,

点击view按钮，可查看模型的详细情况，如下图。

点击预测predict按钮,会显示下图，选择要预测的数据集，点击预测按钮即可查看结果。

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