When running H20's AutoML function I suddenly get this error, which I couldn't find anywhere else on the internet:
ERROR MESSAGE:
Object 'dummy' not found for argument: model_id
I ran the same code before without problems, the error only occurred after I added features to my dataset (all features are numeric, data is confidential so can't post a working example).
aml <- h2o.automl(x = features,
y = response,
training_frame = train_hf,
validation_frame = valid_hf,
balance_classes = TRUE,
max_runtime_secs = 60) # tried 3600 as well
Has anybody encountered this error before and resolved it?
Full error message:
ERROR: Unexpected HTTP Status code: 404 Not Found (url = http://localhost:54321/99/Models.bin/dummy?dir=%2FUsers%2Fshiringlander%2FDocuments%2FGit%2Ftfs%2Fmodels%2Fdummy&force=FALSE)
water.exceptions.H2OKeyNotFoundArgumentException
[1] "water.exceptions.H2OKeyNotFoundArgumentException: Object 'dummy' not found for argument: model_id"
[2] " water.api.ModelsHandler.getFromDKV(ModelsHandler.java:95)"
[3] " water.api.ModelsHandler.exportModel(ModelsHandler.java:219)"
[4] " sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)"
[5] " sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)"
[6] " sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)"
[7] " java.lang.reflect.Method.invoke(Method.java:498)"
[8] " water.api.Handler.handle(Handler.java:63)"
[9] " water.api.RequestServer.serve(RequestServer.java:482)"
[10] " water.api.RequestServer.doGeneric(RequestServer.java:327)"
[11] " water.api.RequestServer.doGet(RequestServer.java:251)"
[12] " javax.servlet.http.HttpServlet.service(HttpServlet.java:735)"
[13] " javax.servlet.http.HttpServlet.service(HttpServlet.java:848)"
[14] " org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684)"
[15] " org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:501)"
[16] " org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086)"
[17] " org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:427)"
[18] " org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020)"
[19] " org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)"
[20] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[21] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[22] " water.webserver.jetty8.Jetty8ServerAdapter$LoginHandler.handle(Jetty8ServerAdapter.java:119)"
[23] " org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)"
[24] " org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)"
[25] " org.eclipse.jetty.server.Server.handle(Server.java:370)"
[26] " org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494)"
[27] " org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)"
[28] " org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:973)"
[29] " org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1035)"
[30] " org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:641)"
[31] " org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:231)"
[32] " org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)"
[33] " org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)"
[34] " org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)"
[35] " org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)"
[36] " java.lang.Thread.run(Thread.java:748)"
Error in .h2o.doSafeREST(h2oRestApiVersion = h2oRestApiVersion, urlSuffix = page, :
ERROR MESSAGE:
Object 'dummy' not found for argument: model_id
R session info:
R version 3.5.2 (2018-12-20)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.3
Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] h2o_3.23.0.4566
loaded via a namespace (and not attached):
[1] compiler_3.5.2 tools_3.5.2 RCurl_1.95-4.11 yaml_2.2.0 knitr_1.21 jsonlite_1.6 xfun_0.4 bitops_1.0-6
This problem can be solved by specifiying what particular algos to use. You can check this: https://docs.h2o.ai/h2o/latest-stable/h2o-docs/data-science/algo-params/include_algos.html
This error is reproducible by using: include_algos=c("StackedEnsemble"), only.