今天早上,突然出现:jvm Full GC 长达 2分钟,这该怎么查原因?

Tom-Lin 发布于 04/15 14:26
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(配置信息:)
Java HotSpot(TM) 64-Bit Server VM (24.79-b02) for windows-amd64 JRE (1.7.0_79-b15), built on Apr 10 2015 12:36:16 by "java_re" with unknown MS VC++:1600
Memory: 4k page, physical 8387664k(3859660k free), swap 15644704k(14352348k free)
CommandLine flags: -XX:InitialHeapSize=3221225472 -XX:+ManagementServer -XX:MaxGCPauseMillis=200 -XX:MaxHeapSize=5368709120 -XX:MaxPermSize=536870912 -XX:PermSize=536870912 -XX:+PrintGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:ReservedCodeCacheSize=104857600 -XX:+UseAdaptiveSizePolicy -XX:+UseCompressedOops -XX:+UseLargePagesIndividualAllocation -XX:+UseParallelGC -XX:+UseParallelOldGC 

........(省略部分内容)


2019-04-15T14:08:18.035+0800: 3071.234: [GC [PSYoungGen: 1133312K->12784K(1090560K)] 3174835K->2071199K(3187712K), 0.1067711 secs] [Times: user=0.27 sys=0.03, real=0.11 secs] 
2019-04-15T14:08:44.316+0800: 3097.519: [GC [PSYoungGen: 1090544K->12069K(1059328K)] 3148959K->2078789K(3156480K), 0.0629215 secs] [Times: user=0.13 sys=0.00, real=0.06 secs] 
2019-04-15T14:08:56.769+0800: 3109.960: [GC [PSYoungGen: 1059109K->11425K(1029120K)] 3125829K->2084163K(3126272K), 0.0525665 secs] [Times: user=0.17 sys=0.03, real=0.05 secs] 
2019-04-15T14:09:06.175+0800: 3119.375: [GC [PSYoungGen: 1028769K->8615K(1209856K)] 3101507K->2087611K(3307008K), 0.0543488 secs] [Times: user=0.14 sys=0.03, real=0.06 secs] 
2019-04-15T14:09:18.707+0800: 3131.900: [GC [PSYoungGen: 1209767K->15849K(1181184K)] 3288763K->2099520K(3278336K), 0.0490192 secs] [Times: user=0.17 sys=0.00, real=0.05 secs] 

(注意下面这行)
2019-04-15T14:09:18.769+0800: 3131.962: [Full GC [PSYoungGen: 15849K->0K(1181184K)] [ParOldGen: 2083671K->892233K(2097152K)] 2099520K->892233K(3278336K) [PSPermGen: 175249K->167439K(524288K)], 117.4773396 secs] [Times: user=9.47 sys=1.91, real=117.47 secs] 

2019-04-15T14:11:24.644+0800: 3257.839: [GC [PSYoungGen: 1165312K->27843K(1193472K)] 2057545K->920077K(3290624K), 0.0422973 secs] [Times: user=0.27 sys=0.00, real=0.05 secs] 

 

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