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使用h2o.randomforest時出現此錯誤。請參閱下面的函數調用和相關的錯誤。使用H2O的堆使用錯誤RandomForest
base_line_rf <- h2o.randomForest(x=2:ncol(train),
y=1,
ntrees = 10000,
mtries = ncol(train)-1,
training_frame = train,
model_id <- model_id,
stopping_rounds = 5,
stopping_tolerance = 0,
stopping_metric = "AUC",
binomial_double_trees = TRUE
)
錯誤:
java.lang.AssertionError: I am really confused about the heap usage; MEM_MAX=7624720384 heapUsedGC=7626295912
at water.MemoryManager.set_goals(MemoryManager.java:97)
at water.MemoryManager.malloc(MemoryManager.java:265)
at water.MemoryManager.malloc(MemoryManager.java:222)
at water.MemoryManager.malloc8d(MemoryManager.java:281)
at hex.tree.DHistogram.init(DHistogram.java:281)
at hex.tree.DHistogram.init(DHistogram.java:240)
at hex.tree.ScoreBuildHistogram2$ComputeHistoThread.computeChunk(ScoreBuildHistogram2.java:326)
at hex.tree.ScoreBuildHistogram2$ComputeHistoThread.map(ScoreBuildHistogram2.java:306)
at water.LocalMR.compute2(LocalMR.java:84)
at water.LocalMR.compute2(LocalMR.java:76)
at water.LocalMR.compute2(LocalMR.java:76)
at water.LocalMR.compute2(LocalMR.java:76)
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.popAndExecAll(ForkJoinPool.java:904)
at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:977)
at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477)
at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
,這是什麼錯誤的原因是什麼?
謝謝
請提供樣本數據重複的例子:[示例](https://stackoverflow.com/a/5963610/4421870) – Mako212
你可能需要更多的內存,檢查[這個答案](https://stackoverflow.com/questions/45333883/h2o-server-crash)。 –
這是一個斷言錯誤 - 斷言在默認情況下是禁用的,所以您必須打開它們(用於調試?)。如果再次關閉它們,它可能會起作用,但也有可能稍後會彈出另一個相關錯誤。 –