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DolphinDB在执行query时报错:Java heap space

在使用Dolphin执行如下query语句时:

db = databese("dfs://testdb")
pt = loadTable(db,"pt")
select * from pt where TradingDay=2020.08.07

返回如下报错信息:

execution was completed with exception
Java heap space

请问应该怎么处理?


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这个问题应该是OOM(Out Of Memory),
建议检查一下所要查询表相关分区的大小和节点maxMemSize的大小(不能超出maxMemSize),
可以缩小查询的范围,防止加载到内存的表过大,导致内存溢出问题。


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