Python3.x:H2OFrame崩溃-解析数据帧

我是H2O（python包）的早期初学者。我的问题是，我不知道如何从熊猫的数据帧成功地创建一个帧

我的环境是：

• Windows 10 Home，内置15063.540，具有16.0 GB内存
• Java SE开发工具包8u144（64位）
• Java SE运行时环境（build 1.8.0_144-b01）
• 巨蟒3.5.4

我用h2o.init（）启动了服务器：

我正试图通过以下命令从train1 pandas的数据帧创建我的数据帧：

hf1 = h2o.H2OFrame(train1)

事故信息：

OSError: Job with key $03017f00000132d4ffffffff$_8ef7ebc5204725b046d7b31ca7194c71 failed with an exception: DistributedException from /127.0.0.1:54321: 'null', caused by java.lang.AssertionError
stacktrace: 
DistributedException from /127.0.0.1:54321: 'null', caused by java.lang.AssertionError
    at water.MRTask.getResult(MRTask.java:478)
    at water.MRTask.getResult(MRTask.java:486)
    at water.MRTask.doAll(MRTask.java:402)
    at water.parser.ParseDataset.parseAllKeys(ParseDataset.java:245)
    at water.parser.ParseDataset.access$000(ParseDataset.java:26)
    at water.parser.ParseDataset$ParserFJTask.compute2(ParseDataset.java:194)
    at water.H2O$H2OCountedCompleter.compute(H2O.java:1255)
    at jsr166y.CountedCompleter.exec(CountedCompleter.java:468)
    at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
    at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
    at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
    at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
Caused by: java.lang.AssertionError
    at water.parser.Categorical.addKey(Categorical.java:41)
    at water.parser.FVecParseWriter.addStrCol(FVecParseWriter.java:133)
    at water.parser.CsvParser.parseChunk(CsvParser.java:126)
    at water.parser.ParseDataset$MultiFileParseTask$DistributedParse.map(ParseDataset.java:888)
    at water.MRTask.compute2(MRTask.java:637)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.H2O$H2OCountedCompleter.compute1(H2O.java:1258)
    at water.parser.ParseDataset$MultiFileParseTask$DistributedParse$Icer.compute1(ParseDataset$MultiFileParseTask$DistributedParse$Icer.java)
    at water.H2O$H2OCountedCompleter.compute(H2O.java:1254)
    ... 5 more

hf1 = h2o.H2OFrame(train1.loc[:7,:])
[out] Parse progress: | (failed)

然而，我尝试使用熊猫数据帧的前6行创建H2OFrame，结果很顺利

hf1 = h2o.H2OFrame(train1.loc[:6,:])
[out] Parse progress: |█████████████████████████████████████████████████████████| 100%

但当我尝试超过这6行（例如7行）时，它会再次失败，并显示以前的崩溃信息：

OSError: Job with key $03017f00000132d4ffffffff$_8ef7ebc5204725b046d7b31ca7194c71 failed with an exception: DistributedException from /127.0.0.1:54321: 'null', caused by java.lang.AssertionError
stacktrace: 
DistributedException from /127.0.0.1:54321: 'null', caused by java.lang.AssertionError
    at water.MRTask.getResult(MRTask.java:478)
    at water.MRTask.getResult(MRTask.java:486)
    at water.MRTask.doAll(MRTask.java:402)
    at water.parser.ParseDataset.parseAllKeys(ParseDataset.java:245)
    at water.parser.ParseDataset.access$000(ParseDataset.java:26)
    at water.parser.ParseDataset$ParserFJTask.compute2(ParseDataset.java:194)
    at water.H2O$H2OCountedCompleter.compute(H2O.java:1255)
    at jsr166y.CountedCompleter.exec(CountedCompleter.java:468)
    at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263)
    at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974)
    at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
    at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
Caused by: java.lang.AssertionError
    at water.parser.Categorical.addKey(Categorical.java:41)
    at water.parser.FVecParseWriter.addStrCol(FVecParseWriter.java:133)
    at water.parser.CsvParser.parseChunk(CsvParser.java:126)
    at water.parser.ParseDataset$MultiFileParseTask$DistributedParse.map(ParseDataset.java:888)
    at water.MRTask.compute2(MRTask.java:637)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.MRTask.compute2(MRTask.java:591)
    at water.H2O$H2OCountedCompleter.compute1(H2O.java:1258)
    at water.parser.ParseDataset$MultiFileParseTask$DistributedParse$Icer.compute1(ParseDataset$MultiFileParseTask$DistributedParse$Icer.java)
    at water.H2O$H2OCountedCompleter.compute(H2O.java:1254)
    ... 5 more

hf1 = h2o.H2OFrame(train1.loc[:7,:])
[out] Parse progress: | (failed)

这有什么不对

提前谢谢

佩德罗补充道：

h2o.cluster().shutdown()

解决了我的问题。可能是错误的，但我认为缺乏RAM是我的问题，所以关闭以前的集群起到了帮助作用

我想出了解决我自己问题的办法，但我将把这个留在这里，这样我就可以帮助其他有同样问题的人