Message10575
requests library will cause memory leak on Jython when the target server is set to keep-alive and the maxKeepAliveRequests=-1 (unlimited)
Sample Tomcat server.xml configuration to reproduce the problem:
<Connector connectionTimeout="20000" maxThreads="100" port="8181"
maxKeepAliveRequests="-1"
keepAliveTimeout="300000"
protocol="org.apache.coyote.http11.Http11NioProtocol" redirectPort="8443"/>
======================
Sample python code (no problem when using Python 2.7):
from threading import Thread
import requests
import time
d = 'POST DATA'
def a():
s = requests.Session()
s.trust_env = False
while True:
resp = s.post('http://sample.com',data=d,headers = {'Content-Type':'application/json'})
resp.encoding = 'utf-8'
print len(resp.text),time.time()
for i in range(20):
t = Thread(target=a)
t.start()
while True:
time.sleep(1000)
======================
[]$ /apps/lpsadmin/jdk1.8.0_25/bin/jstat -gcutil 3072 1s
S0 S1 E O M CCS YGC YGCT FGC FGCT GCT
20.98 0.00 95.67 50.47 91.15 95.76 72 4.045 2 0.143 4.188
0.00 95.35 52.35 51.89 91.15 95.76 73 4.080 2 0.143 4.223
20.70 0.00 20.76 53.29 91.15 95.76 74 4.115 2 0.143 4.258
20.70 0.00 97.44 53.29 91.15 95.76 74 4.115 2 0.143 4.258
0.00 97.72 73.99 53.29 91.15 95.76 75 4.150 2 0.143 4.293
48.61 0.00 33.77 53.29 91.15 95.76 76 4.190 2 0.143 4.333
48.61 0.00 81.00 53.29 91.15 95.76 76 4.190 2 0.143 4.333
0.00 59.74 59.67 53.29 91.15 95.76 77 4.235 2 0.143 4.378
69.17 0.00 30.18 53.29 91.15 95.76 78 4.286 2 0.143 4.428
69.17 43.48 100.00 54.02 91.15 95.76 79 4.286 2 0.143 4.428
0.00 64.22 79.09 54.55 91.15 95.76 79 4.345 2 0.143 4.488
63.10 0.00 52.62 55.40 91.15 95.76 80 4.401 2 0.143 4.544
0.00 98.57 16.72 57.04 91.15 95.76 81 4.470 2 0.143 4.613
0.00 98.57 95.24 57.04 91.15 95.76 81 4.470 2 0.143 4.613
46.98 0.00 65.85 58.77 91.15 95.76 82 4.523 2 0.143 4.666
0.00 37.98 40.66 60.54 91.15 95.76 83 4.571 2 0.143 4.714
24.98 0.00 11.54 62.59 91.15 95.76 84 4.627 2 0.143 4.770
24.98 0.00 81.58 62.59 91.15 95.76 84 4.627 2 0.143 4.770
0.00 25.76 55.75 64.05 91.15 95.76 85 4.665 2 0.143 4.808
26.22 0.00 25.68 65.55 91.15 95.76 86 4.701 2 0.143 4.844
26.22 0.00 89.92 65.55 91.15 95.76 86 4.701 2 0.143 4.844
0.00 26.57 63.18 67.04 91.15 95.76 87 4.739 2 0.143 4.882
27.87 0.00 36.69 68.57 91.15 95.76 88 4.777 2 0.143 4.920
0.00 27.95 8.99 70.09 91.15 95.76 89 4.816 2 0.143 4.958
0.00 27.95 81.64 70.09 91.15 95.76 89 4.816 2 0.143 4.958
29.14 0.00 51.78 71.62 91.15 95.76 90 4.853 2 0.143 4.996
0.00 29.60 25.41 73.17 91.15 95.76 91 4.891 2 0.143 5.034
0.00 29.60 93.34 73.17 91.15 95.76 91 4.891 2 0.143 5.034
31.29 0.00 64.18 74.69 91.15 95.76 92 4.929 2 0.143 5.072
0.00 32.32 34.08 76.31 91.15 95.76 93 4.969 2 0.143 5.112
34.14 0.00 2.05 77.88 91.15 95.76 94 5.009 2 0.143 5.152
34.14 0.00 71.19 77.88 91.15 95.76 94 5.009 2 0.143 5.152
0.00 34.49 43.58 79.49 91.15 95.76 95 5.050 2 0.143 5.193
26.66 34.49 100.00 81.04 91.15 95.76 96 5.050 2 0.143 5.193
37.21 0.00 56.60 81.15 91.15 95.76 96 5.134 2 0.143 5.277
37.21 0.00 87.03 81.15 91.15 95.76 96 5.134 2 0.143 5.277
0.00 39.46 23.16 82.79 91.15 95.76 97 5.175 2 0.143 5.318
0.00 39.46 63.83 82.79 91.15 95.76 97 5.175 2 0.143 5.318
43.43 0.00 28.68 84.43 91.15 95.76 98 5.216 2 0.143 5.359
43.43 0.00 76.11 84.43 91.15 95.76 98 5.216 2 0.143 5.359
0.00 74.46 18.74 84.43 91.15 95.76 99 5.259 2 0.143 5.401
0.00 74.46 45.63 84.43 91.15 95.76 99 5.259 2 0.143 5.401
0.00 74.46 88.79 84.43 91.15 95.76 99 5.259 2 0.143 5.401
91.38 0.00 30.25 84.43 91.15 95.76 100 5.309 2 0.143 5.452
91.38 0.00 73.04 84.43 91.15 95.76 100 5.309 2 0.143 5.452
0.00 99.91 16.74 84.43 91.15 95.76 101 5.365 2 0.143 5.508
0.00 99.91 52.57 84.43 91.15 95.76 101 5.365 2 0.143 5.508
99.91 0.00 25.27 85.48 91.15 95.76 102 5.439 2 0.143 5.581
0.00 99.93 0.00 87.90 91.15 95.76 103 5.505 2 0.143 5.647
0.00 99.93 74.45 87.90 91.15 95.76 103 5.505 2 0.143 5.647
60.21 0.00 60.70 90.10 91.15 95.76 104 5.567 2 0.143 5.709
0.00 96.42 30.82 93.10 91.15 95.76 105 5.623 2 0.143 5.765
24.25 0.00 14.75 95.38 91.15 95.76 106 5.680 2 0.143 5.823
24.25 0.00 94.18 95.38 91.15 95.76 106 5.680 2 0.143 5.823
0.00 24.67 76.00 96.94 91.15 95.76 107 5.721 2 0.143 5.863
25.16 0.00 0.00 98.46 91.15 95.76 108 5.759 3 0.143 5.902
25.16 0.00 0.00 98.46 91.15 95.76 108 5.759 3 0.143 5.902
0.00 0.00 80.40 86.01 91.00 95.67 108 5.759 3 2.405 8.164
0.00 37.01 47.35 86.01 91.00 95.67 109 5.788 3 2.405 8.193
27.36 0.00 19.44 88.09 91.00 95.67 110 5.833 3 2.405 8.238
27.36 0.00 99.80 88.09 91.00 95.67 111 5.833 3 2.405 8.238
0.00 28.23 78.82 89.61 91.00 95.67 111 5.871 3 2.405 8.276
29.76 0.00 51.06 91.19 91.00 95.67 112 5.910 3 2.405 8.315
0.00 30.74 22.98 92.81 91.00 95.67 113 5.950 3 2.405 8.355
0.00 30.74 98.99 92.81 91.00 95.67 113 5.950 3 2.405 8.355
31.73 0.00 79.99 94.42 91.00 95.67 114 5.989 3 2.405 8.394
0.00 33.13 54.78 96.03 91.00 95.67 115 6.029 3 2.405 8.435
36.05 0.00 0.00 97.67 91.00 95.67 116 6.069 4 2.405 8.474
0.00 0.00 59.93 92.22 90.96 95.63 116 6.069 4 3.621 9.690
0.00 52.06 20.92 92.22 90.96 95.63 117 6.099 4 3.621 9.720
0.00 52.06 89.32 92.22 90.96 95.63 117 6.099 4 3.621 9.720
78.76 0.00 27.60 92.22 90.96 95.63 118 6.138 4 3.621 9.758
78.76 81.69 100.00 92.22 90.96 95.63 119 6.138 4 3.621 9.758
0.00 98.08 83.66 92.22 90.96 95.63 119 6.183 4 3.621 9.804
99.88 0.00 51.65 92.36 90.96 95.63 120 6.235 4 3.621 9.856
0.00 60.15 39.67 95.40 90.96 95.63 121 6.295 4 3.621 9.916
67.74 60.15 100.00 95.40 90.96 95.63 122 6.295 4 3.621 9.916
74.77 0.00 82.65 95.40 90.96 95.63 122 6.348 4 3.621 9.969
0.00 99.11 72.54 95.40 90.96 95.63 123 6.409 4 3.621 10.030
89.16 0.00 59.43 95.40 90.96 95.63 124 6.476 4 3.621 10.096
0.00 98.64 46.62 96.55 90.96 95.63 125 6.546 4 3.621 10.167
57.89 0.00 0.00 99.01 90.96 95.63 126 6.616 5 3.621 10.236
57.89 0.00 0.00 99.01 90.96 95.63 126 6.616 5 3.621 10.236
17.33 0.00 92.42 99.87 90.96 95.63 126 6.616 5 5.792 12.408
17.33 0.00 100.00 99.87 90.96 95.63 126 6.616 6 5.792 12.408
0.00 0.00 56.21 100.00 90.96 95.63 126 6.616 6 7.323 13.939
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 7 7.323 13.939
0.00 0.00 8.51 99.95 90.96 95.63 126 6.616 7 8.895 15.511
0.00 0.00 100.00 99.95 90.96 95.63 126 6.616 8 8.895 15.511
0.00 0.00 100.00 99.95 90.96 95.63 126 6.616 8 8.895 15.511
0.00 0.00 100.00 99.86 90.96 95.63 126 6.616 9 10.525 17.141
0.00 0.00 100.00 99.86 90.96 95.63 126 6.616 9 10.525 17.141
0.00 0.00 100.00 99.85 90.96 95.63 126 6.616 10 12.048 18.663
0.00 0.00 100.00 99.85 90.96 95.63 126 6.616 10 12.048 18.663
0.00 0.00 100.00 99.85 90.96 95.63 126 6.616 11 13.588 20.204
0.00 0.00 100.00 99.85 90.96 95.63 126 6.616 11 13.588 20.204
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 12 14.734 21.350
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 12 14.734 21.350
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 13 16.251 22.866
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 14 17.781 24.397
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 14 17.781 24.397
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 15 19.330 25.945
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 15 19.330 25.945
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 16 20.904 27.520
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 16 20.904 27.520
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 17 22.483 29.099
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 17 22.483 29.099
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 18 24.046 30.662
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 19 25.617 32.233
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 19 25.617 32.233
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 20 27.208 33.824
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 20 27.208 33.824
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 21 28.760 35.375
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 22 30.334 36.950
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 22 30.334 36.950
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 23 31.908 38.523
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 23 31.908 38.523
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 24 33.538 40.154
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 25 35.154 41.770
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 25 35.154 41.770
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 26 36.709 43.324
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 26 36.709 43.324
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 27 38.290 44.905
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 28 39.639 46.255
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 29 40.829 47.445
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 29 40.829 47.445
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 30 42.412 49.027
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 30 42.412 49.027
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 31 43.976 50.592
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 32 45.545 52.161
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 32 45.545 52.161
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 33 47.103 53.718
0.00 0.00 50.77 100.00 90.96 95.63 126 6.616 33 48.678 55.293
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 34 48.678 55.293
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 35 50.287 56.902
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 35 50.287 56.902
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 36 51.894 58.510
0.00 0.00 53.94 100.00 90.96 95.63 126 6.616 36 53.443 60.058
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 37 53.443 60.058
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 38 54.853 61.469
0.00 0.00 100.00 100.00 90.96 95.63 126 6.616 38 54.853 61.469
VisualVM shows most of the memory are spent on LinkedBlockingQueue. |
|
| Date |
User |
Action |
Args |
| 2015-12-30 06:57:04 | latifrons | set | recipients:
+ latifrons |
| 2015-12-30 06:57:04 | latifrons | set | messageid: <1451458624.6.0.810360322369.issue2449@psf.upfronthosting.co.za> |
| 2015-12-30 06:57:04 | latifrons | link | issue2449 messages |
| 2015-12-30 06:57:02 | latifrons | create | |
|
