Java show error java.lang.OutOfMemoryError

Question

I download Parsemis program. It is frequent subgraph mining program create from java. My data for use in parsemis is very big.

I try to run java parsemis in Windows10 by add -Xmx4096M it show error like this. What's the cause of this problem? How to fix it ?

java -Xmx4096M -jar parsemis-2008-12-01.jar --graphFile=graph_all.lg --outputFile=output.lg --minimumFrequency=10%

It show error like this.

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
        at de.parsemis.graph.HPListGraph.<init>(HPListGraph.java:207)
        at de.parsemis.graph.HPListGraph.clone(HPListGraph.java:378)
        at de.parsemis.graph.HPListGraph.clone(HPListGraph.java:41)
        at de.parsemis.algorithms.gSpan.RightMostExtension.add(RightMostExtension.java:110)
        at de.parsemis.algorithms.gSpan.RightMostExtension.extend(RightMostExtension.java:213)
        at de.parsemis.algorithms.gSpan.RightMostExtension.call(RightMostExtension.java:150)
        at de.parsemis.miner.chain.GenerationStep.call(GenerationStep.java:94)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.call(GSpanGeneration.java:101)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:210)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:187)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)
        at de.parsemis.algorithms.gSpan.GSpanGeneration.searchEmbeddings(GSpanGeneration.java:213)

Both previous comments could be right. But you need hard data. I would profile it — bichito, Mar 09 '17 at 16:16

score 0 · Answer 1 · answered Mar 09 '17 at 16:57

0

try to do it in chunks, maybe because a chunk of code never goes out of scope the memory space is not getting released, in return after a while the operating system steps in, terminates the program and tries to release the memory locations.

answered Mar 09 '17 at 16:57

BlooB

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Java show error java.lang.OutOfMemoryError

1 Answers1