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Possible memory leak #36

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ralf0131 opened this issue May 7, 2019 · 0 comments

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ralf0131 commented May 7, 2019

内存泄露报表：

类加载器"xxxClassLoader @ 0x760829790"加载的"com.alibaba.metrics.server.MetricsMemoryCache"实例"0x760904030"占用了1,215,172,200 (33.23%)字节.其内存主要积累在由类加载"bootstrap class loader"加载的"java.util.TreeMap$Entry"实例"0x715e43858".

/logs/metrics/bin/日期/目录下生成了上GB的单个文件，删了这些文件之后再重启应用就不FGC了，否则重启完了还是会继续FGC.

通过OQL语言查询，发现内存里面读入大量的二进制落盘long数组。

需要排查为何生成了上GB的单个文件
二进制落盘时考虑增加大小限制
从文件中读取数据的时候，需要增加保护措施，方式读取到内存中的数据过多

ralf0131 assigned xhghost

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