如果判断weblogic有内存泄露

约定不等于承诺〃 2022-08-22 15:27 179阅读 0赞

很多年的疑问现在终于有答案了，判断weblogic是否有内存泄露，就看GC日志，如果发现老年代回收后的内存使用是上升趋势（当然，我的GC模型是选择的经典默认的并行收集模型，如果是其他模型，下面的日志也就不适用了），且当系统业务空闲的时候也一直都无法回收，就是内存泄露了。从系统上反映就是系统刚启动的时候很快，用着用着就很慢了。

2016-06-01T17:28:41.565+0800: 28103.616: \[Full GC \[PSYoungGen: 1724416K->1098291K(1736192K)\] \[ParOldGen: 3494228K->3494200K(3495424K)\] 5218644K->4592491K(5231616K) \[PSPermGen: 496291K->496291K(1048576K)\], 1.2115930 secs\] \[Times: user=8.00 sys=0.01, real=1.21 secs\]

2016-06-01T17:28:43.007+0800: 28105.058: \[Full GC \[PSYoungGen: 1724416K->1098187K(1736192K)\]\[ParOldGen: 3494200K->3494200K(3495424K)\] 5218616K->4592387K(5231616K) \[PSPermGen: 496291K->496291K(1048576K)\], 1.3637810 secs\] \[Times: user=8.32 sys=0.01, real=1.37 secs\]   
2016-06-01T17:28:44.789+0800: 28106.840: \[Full GC \[PSYoungGen: 1724416K->1098090K(1736192K)\]\[ParOldGen: 3494200K->3494148K(3495424K)\] 5218616K->4592239K(5231616K)\[PSPermGen: 496294K->496294K(1048576K)\], 1.5212640 secs\] \[Times: user=12.83 sys=0.03, real=1.52 secs\]   
2016-06-01T17:28:48.360+0800: 28110.411: \[Full GC \[PSYoungGen: 1724416K->1106761K(1736192K)\] \[ParOldGen: 3494148K->3494148K(3495424K)\] 5218564K->4600910K(5231616K) \[PSPermGen: 496294K->496294K(1048576K)\], 1.2616240 secs\] \[Times: user=9.28 sys=0.02, real=1.26 secs\]   
2016-06-01T17:28:49.994+0800: 28112.044: \[Full GC \[PSYoungGen: 1724416K->1106598K(1736192K)\]\[ParOldGen: 3494148K->3494148K(3495424K)\] 5218564K->4600747K(5231616K) \[PSPermGen: 496294K->496294K(1048576K)\], 1.2933940 secs\] \[Times: user=6.67 sys=0.00, real=1.29 secs\]   
2016-06-01T17:28:56.615+0800: 28118.666: \[Full GC \[PSYoungGen: 1724416K->1106499K(1736192K)\]\[ParOldGen: 3494148K->3494127K(3495424K)\] 5218564K->4600626K(5231616K) \[PSPermGen: 496294K->496294K(1048576K)\], 1.6003510 secs\] \[Times: user=12.98 sys=0.04, real=1.60 secs\]   
2016-06-01T17:28:58.811+0800: 28120.861: \[Full GC \[PSYoungGen: 1724416K->1106981K(1736192K)\]\[ParOldGen: 3494127K->3494124K(3495424K)\] 5218543K->4601106K(5231616K)\[PSPermGen: 496297K->496297K(1048576K)\], 1.7626250 secs\] \[Times: user=14.49 sys=0.06, real=1.77 secs\]   
2016-06-01T17:29:00.723+0800: 28122.773: \[Full GC \[PSYoungGen: 1724416K->1107113K(1736192K)\]\[ParOldGen: 3494124K->3494124K(3495424K)\] 5218540K->4601238K(5231616K) \[PSPermGen: 496297K->496297K(1048576K)\], 1.4176170 secs\] \[Times: user=10.48 sys=0.01, real=1.41 secs\]   
2016-06-01T17:29:02.479+0800: 28124.529: \[Full GC \[PSYoungGen: 1724416K->1107171K(1736192K)\] \[ParOldGen: 3494124K->3494104K(3495424K)\] 5218540K->4601275K(5231616K) \[PSPermGen: 496297K->496297K(1048576K)\], 1.3758820 secs\] \[Times: user=9.06 sys=0.02, real=1.38 secs\]   
2016-06-01T17:29:04.625+0800: 28126.675: \[Full GC \[PSYoungGen: 1724416K->1107717K(1736192K)\] \[ParOldGen: 3494104K->3493953K(3495424K)\] 5218520K->4601671K(5231616K) \[PSPermGen: 496297K->496297K(1048576K)\], 1.4519640 secs\] \[Times: user=11.96 sys=0.03, real=1.45 secs\]   
2016-06-01T17:29:06.228+0800: 28128.279: \[Full GC \[PSYoungGen: 1724416K->1107784K(1736192K)\] \[ParOldGen: 3493953K->3493949K(3495424K)\] 5218369K->4601733K(5231616K) \[PSPermGen: 496297K->496297K(1048576K)\], 1.2794860 secs\] \[Times: user=8.18 sys=0.01, real=1.28 secs\]   
2016-06-01T17:29:07.662+0800: 28129.712: \[Full GC \[PSYoungGen: 1724416K->1107743K(1736192K)\] \[ParOldGen: 3493949K->3493941K(3495424K)\] 5218365K->4601684K(5231616K) \[PSPermGen: 496297K->496297K(1048576K)\], 1.2876190 secs\] \[Times: user=7.66 sys=0.00, real=1.29 secs\]   
2016-06-01T17:29:09.144+0800: 28131.195: \[Full GC \[PSYoungGen: 1724416K->1107706K(1736192K)\] \[ParOldGen: 3493941K->3493941K(3495424K)\] 5218357K->4601648K(5231616K) \[PSPermGen: 496298K->496298K(1048576K)\], 4.0644010 secs\] \[Times: user=49.47 sys=0.26, real=4.06 secs\]   
2016-06-01T17:29:13.371+0800: 28135.422: \[Full GC \[PSYoungGen: 1724416K->1107731K(1736192K)\] \[ParOldGen: 3493941K->3493933K(3495424K)\] 5218357K->4601665K(5231616K) \[PSPermGen: 496298K->496298K(1048576K)\], 1.5156320 secs\] \[Times: user=8.05 sys=0.01, real=1.52 secs\]   
2016-06-01T17:29:15.245+0800: 28137.295: \[Full GC \[PSYoungGen: 1724416K->1107558K(1736192K)\] \[ParOldGen: 3493933K->3493933K(3495424K)\] 5218349K->4601492K(5231616K) \[PSPermGen: 496298K->496298K(1048576K)\], 1.3759610 secs\] \[Times: user=9.00 sys=0.01, real=1.37 secs\]   
2016-06-01T17:29:16.928+0800: 28138.978: \[Full GC \[PSYoungGen: 1724416K->1107602K(1736192K)\] \[ParOldGen: 3493933K->3493931K(3495424K)\] 5218349K->4601534K(5231616K) \[PSPermGen: 496298K->496298K(1048576K)\], 1.6947780 secs\] \[Times: user=13.69 sys=0.03, real=1.69 secs\]   
2016-06-01T17:29:18.883+0800: 28140.933: \[Full GC \[PSYoungGen: 1724416K->1107855K(1736192K)\] \[ParOldGen: 3493931K->3493911K(3495424K)\] 5218347K->4601766K(5231616K) \[PSPermGen: 496298K->496298K(1048576K)\], 1.4874950 secs\] \[Times: user=8.53 sys=0.01, real=1.49 secs\]   
2016-06-01T17:29:21.835+0800: 28143.886: \[Full GC \[PSYoungGen: 1724416K->1107107K(1736192K)\] \[ParOldGen: 3495419K->3495195K(3495424K)\] 5219835K->4602303K(5231616K) \[PSPermGen: 496299K->496299K(1048576K)\], 2.6679800 secs\] \[Times: user=26.68 sys=0.16, real=2.66 secs\]   
2016-06-01T17:29:24.644+0800: 28146.695: \[Full GC \[PSYoungGen: 1724416K->1106987K(1736192K)\] \[ParOldGen: 3495195K->3495187K(3495424K)\] 5219611K->4602175K(5231616K) \[PSPermGen: 496299K->496299K(1048576K)\], 1.2649340 secs\] \[Times: user=7.34 sys=0.00, real=1.27 secs\]   
2016-06-01T17:29:26.239+0800: 28148.290: \[Full GC \[PSYoungGen: 1724416K->1107191K(1736192K)\] \[ParOldGen: 3495187K->3495153K(3495424K)\] 5219603K->4602344K(5231616K) \[PSPermGen: 496299K->496299K(1048576K)\], 2.1915990 secs\] \[Times: user=23.00 sys=0.12, real=2.19 secs\]   
2016-06-01T17:29:28.570+0800: 28150.621: \[Full GC \[PSYoungGen: 1724416K->1107338K(1736192K)\] \[ParOldGen: 3495153K->3495148K(3495424K)\] 5219569K->4602487K(5231616K) \[PSPermGen: 496299K->496299K(1048576K)\], 1.2928310 secs\] \[Times: user=8.11 sys=0.00, real=1.29 secs\]   
2016-06-01T17:29:30.043+0800: 28152.093: \[Full GC \[PSYoungGen: 1724416K->1107265K(1736192K)\] \[ParOldGen: 3495148K->3495144K(3495424K)\] 5219564K->4602410K(5231616K) \[PSPermGen: 496299K->496299K(1048576K)\], 1.3301780 secs\] \[Times: user=9.31 sys=0.02, real=1.33 secs\]   
2016-06-01T17:29:37.668+0800: 28159.719: \[Full GC \[PSYoungGen: 1724416K->1107418K(1736192K)\] \[ParOldGen: 3495144K->3495128K(3495424K)\] 5219560K->4602546K(5231616K) \[PSPermGen: 496300K->496300K(1048576K)\], 1.4910560 secs\] \[Times: user=12.13 sys=0.04, real=1.49 secs\]   
2016-06-01T17:29:43.306+0800: 28165.356: \[Full GC \[PSYoungGen: 1724416K->1107629K(1736192K)\] \[ParOldGen: 3495128K->3495111K(3495424K)\] 5219544K->4602740K(5231616K) \[PSPermGen: 496300K->496300K(1048576K)\], 1.3447110 secs\] \[Times: user=9.45 sys=0.02, real=1.35 secs\]   
2016-06-01T17:29:44.845+0800: 28166.896: \[Full GC \[PSYoungGen: 1724416K->1107573K(1736192K)\] \[ParOldGen: 3495111K->3495043K(3495424K)\] 5219527K->4602617K(5231616K) \[PSPermGen: 496300K->496208K(1048576K)\], 2.7839360 secs\] \[Times: user=27.63 sys=0.12, real=2.79 secs\]   
2016-06-01T17:29:47.799+0800: 28169.850: \[Full GC \[PSYoungGen: 1724416K->1107567K(1736192K)\] \[ParOldGen: 3495043K->3495043K(3495424K)\] 5219459K->4602611K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.4002200 secs\] \[Times: user=8.26 sys=0.01, real=1.40 secs\]   
2016-06-01T17:29:49.382+0800: 28171.433: \[Full GC \[PSYoungGen: 1724416K->1107798K(1736192K)\] \[ParOldGen: 3495043K->3495043K(3495424K)\] 5219459K->4602842K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.3898500 secs\] \[Times: user=9.02 sys=0.01, real=1.39 secs\]   
2016-06-01T17:29:50.901+0800: 28172.952: \[Full GC \[PSYoungGen: 1724416K->1107652K(1736192K)\] \[ParOldGen: 3495043K->3495043K(3495424K)\] 5219459K->4602696K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.3592560 secs\] \[Times: user=7.51 sys=0.01, real=1.36 secs\]   
2016-06-01T17:29:52.414+0800: 28174.465: \[Full GC \[PSYoungGen: 1724416K->1107491K(1736192K)\] \[ParOldGen: 3495043K->3495043K(3495424K)\] 5219459K->4602535K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.4800410 secs\] \[Times: user=9.71 sys=0.01, real=1.48 secs\]   
2016-06-01T17:29:54.041+0800: 28176.091: \[Full GC \[PSYoungGen: 1724416K->1107579K(1736192K)\] \[ParOldGen: 3495043K->3495011K(3495424K)\] 5219459K->4602591K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.2677000 secs\] \[Times: user=8.60 sys=0.01, real=1.26 secs\]   
2016-06-01T17:29:55.581+0800: 28177.632: \[Full GC \[PSYoungGen: 1724416K->1111738K(1736192K)\] \[ParOldGen: 3495011K->3494978K(3495424K)\] 5219427K->4606716K(5231616K) \[PSPermGen: 496208K->496208K(1048576K)\], 1.3719620 secs\] \[Times: user=10.40 sys=0.02, real=1.37 secs\]   
2016-06-01T17:30:04.247+0800: 28186.298: \[Full GC \[PSYoungGen: 1724416K->1111833K(1736192K)\] \[ParOldGen: 3494978K->3494922K(3495424K)\] 5219394K->4606756K(5231616K) \[PSPermGen: 496208K->496202K(1048576K)\], 2.2148720 secs\] \[Times: user=19.09 sys=0.10, real=2.22 secs\]   
2016-06-01T17:30:07.110+0800: 28189.160: \[Full GC \[PSYoungGen: 1724416K->1111765K(1736192K)\] \[ParOldGen: 3494922K->3494837K(3495424K)\] 5219338K->4606602K(5231616K) \[PSPermGen: 496202K->496180K(1048576K)\], 1.7736690 secs\] \[Times: user=13.14 sys=0.02, real=1.78 secs\] ;