ElasticSearch oom error

OOM

[2012-11-08 05:40:11,283][WARN ][index.cache.field.data.resident] [es10.dev.ec2.studyblue.com] [ideas] loading field [time_updated] caused out of memory failure
java.lang.OutOfMemoryError: Java heap space
        at org.elasticsearch.common.trove.list.array.TLongArrayList.ensureCapacity(TLongArrayList.java:186)
        at org.elasticsearch.common.trove.list.array.TLongArrayList.add(TLongArrayList.java:221)
        at org.elasticsearch.index.field.data.longs.LongFieldData$LongTypeLoader.collectTerm(LongFieldData.java:181)
        at org.elasticsearch.index.field.data.support.FieldDataLoader.load(FieldDataLoader.java:59)
        at org.elasticsearch.index.field.data.longs.LongFieldData.load(LongFieldData.java:166)
        at org.elasticsearch.index.field.data.longs.LongFieldDataType.load(LongFieldDataType.java:91)
        at org.elasticsearch.index.field.data.longs.LongFieldDataType.load(LongFieldDataType.java:33)
        at org.elasticsearch.index.field.data.FieldData.load(FieldData.java:111)
        at org.elasticsearch.index.cache.field.data.support.AbstractConcurrentMapFieldDataCache.cache(AbstractConcurrentMapFieldDataCache.java:130)
        at org.elasticsearch.search.lookup.DocLookup.get(DocLookup.java:119)
        at ASMAccessorImpl_17408744991352358591280.getValue(Unknown Source)
        at org.elasticsearch.common.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:73)
        at org.elasticsearch.common.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108)
        at org.elasticsearch.common.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:108)
        at org.elasticsearch.common.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38)
        at org.elasticsearch.common.mvel2.ast.Substatement.getReducedValueAccelerated(Substatement.java:44)
        at org.elasticsearch.common.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:108)
        at org.elasticsearch.common.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:108)
        at org.elasticsearch.common.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38)
        at org.elasticsearch.common.mvel2.ast.Substatement.getReducedValueAccelerated(Substatement.java:44)
        at org.elasticsearch.common.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:108)
        at org.elasticsearch.common.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:38)
        at org.elasticsearch.common.mvel2.ast.Substatement.getReducedValueAccelerated(Substatement.java:44)
        at org.elasticsearch.common.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:108)
        at org.elasticsearch.common.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
        at org.elasticsearch.common.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123)
        at org.elasticsearch.common.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119)
        at org.elasticsearch.script.mvel.MvelScriptEngineService$MvelSearchScript.run(MvelScriptEngineService.java:192)
        at org.elasticsearch.script.mvel.MvelScriptEngineService$MvelSearchScript.runAsFloat(MvelScriptEngineService.java:197)
        at org.elasticsearch.index.query.CustomScoreQueryParser$ScriptScoreFunction.score(CustomScoreQueryParser.java:123)
        at org.elasticsearch.common.lucene.search.function.FunctionScoreQuery$CustomBoostFactorScorer.score(FunctionScoreQuery.java:157)
        at org.apache.lucene.search.TopScoreDocCollector$InOrderTopScoreDocCollector.collect(TopScoreDocCollector.java:47)