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内存溢出 #16

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winflex opened this issue Apr 24, 2019 · 1 comment
Open

内存溢出 #16

winflex opened this issue Apr 24, 2019 · 1 comment

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@winflex
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winflex commented Apr 24, 2019

选区_072
选区_073

重现过程：只需一个线程持续发SetRequest，为了加剧内存上升的过程，把value设的比较大，例如1k，持续一会后jvm就崩了。
猜测：Segment里面有个entries的list，只add没有remove，相当于把报文都存到内存了
@wenweihu86
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@winflex 在每次snapshot结束后，会调用SegmentedLog.truncatePrefix删除多余的内存segment。
目前默认的snapshot间隔是1小时，由于你的value比较大，所以建议把snapshot间隔调小一些。
配置这个字段：RaftOptions.snapshotPeriodSeconds

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@wenweihu86 @winflex