我在 R 中使用 h2o 版本 3.0.0.22，并尝试保存我的模型。但我似乎无法弄清楚预期的格式。我尝试了各种变化，但遇到了各种不同的异常。
h2o.saveModel(model, dir="c:/temp", name= "my.model")
ERROR: Unexpected HTTP Status code: 400 Bad Request (url = http://127.0.0.1:54321/3/Models.bin/DeepLearningModel__8412f3abf1699b5593a55c6861c8468d?dir=c%3A%2Ftemp%2Fmy.model&force=0)
java.lang.IllegalArgumentException
[1] "water.persist.PersistManager.getPersistForURI(PersistManager.java:407)"
[2] "water.serial.ObjectTreeBinarySerializer.save(ObjectTreeBinarySerializer.java:57)"
[3] "water.api.ModelsHandler.exportModel(ModelsHandler.java:206)"
[4] "sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)"
[5] "sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)"
[6] "java.lang.reflect.Method.invoke(Unknown Source)"
[7] "water.api.Handler.handle(Handler.java:56)"
[8] "water.api.RequestServer.handle(RequestServer.java:677)"
[9] "water.api.RequestServer.serve(RequestServer.java:614)"
[10] "water.NanoHTTPD$HTTPSession.run(NanoHTTPD.java:438)"
[11] "java.lang.Thread.run(Unknown Source)"
Error in .h2o.doSafeREST(conn = conn, h2oRestApiVersion = h2oRestApiVersion, :
Cannot find persist manager for scheme c
如何在 Windows 8 计算机上保存模型？
更新：
这里的命令似乎创建了一个文件夹和文件：
h2o.saveModel(模型，文件名=“文件:///C:/temp/model”)
这创建了一个文件：C:/temp/DeepLearningModel__8412f3ab21699b5593aa5c6861c8468d.bin但随后抛出一个不同的错误：
ERROR: Unexpected HTTP Status code: 400 Bad Request (url = http://127.0.0.1:54321/3/Models.bin/DeepLearningModel__8412f3abf1699b5593a55c6861c8468d?dir=file%3A%2F%2F%2FC%3A%2Ftemp%2Fmodel&force=0)
java.lang.IllegalArgumentException
[1] "java.net.URI.create(Unknown Source)"
[2] "water.serial.ObjectTreeBinarySerializer.save(ObjectTreeBinarySerializer.java:70)"
[3] "water.api.ModelsHandler.exportModel(ModelsHandler.java:206)"
[4] "sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)"
[5] "sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)"
[6] "java.lang.reflect.Method.invoke(Unknown Source)"
[7] "water.api.Handler.handle(Handler.java:56)"
[8] "water.api.RequestServer.handle(RequestServer.java:677)"
[9] "water.api.RequestServer.serve(RequestServer.java:614)"
[10] "water.NanoHTTPD$HTTPSession.run(NanoHTTPD.java:438)"
[11] "java.lang.Thread.run(Unknown Source)"
Error in .h2o.doSafeREST(conn = conn, h2oRestApiVersion = h2oRestApiVersion, :
Malformed escape pair at index 165: file:///C:/temp/model/modelmetrics_DeepLearningModel__8412f3abf1699b5593a55c6861c8468d@-1218026610891888320_on_TrainingData.hex_1_part0.temporary.sample.9.91%@1615017098181529186.bin
H2O JIRA 包含问题PUB DEV-1566 https://0xdata.atlassian.net/browse/PUBDEV-1566这是引用你的问题。
您可以尝试使用最新的 H2O - 3.0.0.26，其中包含该问题的修复程序。你可以找到它here http://h2o-release.s3.amazonaws.com/h2o/rel-shannon/26/index.html.
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