Hello,
I have been trying to figure out the bottleneck in Axis2 that has been causing
slow response times for my web service under load. Following are the details
about misstep,
We have deployed POJO SOAP web services using Axis2 on Tomcat 6.0 running on
1.7.0_21. The instance has plenty of memory and CPU available. Here is what we
notice,
we have an API that would return about 400K worth of static data (static for
the purposes of load testing), and I have a test client that I can run in
command line with some parameter that would invoke this API and returns
response in about 200-500 ms. However when I also run JMeter with 20
requests/sec, the response times shoot up to 3-5 seconds and I can’t seem to
figure out why. There is plenty of memory and CPU, and the JMeter is running on
a completely different PC than my command line application, but the command
line application all of a sudden starts showing high response times as you can
see below,
(Response time is 5th column)
2015-06-02 12:31:01,216 0 2015-06-02 12:30:52,307 2015-06-02 12:31:01,215
8908 36
2015-06-02 12:31:03,870 1 2015-06-02 12:31:03,216 2015-06-02 12:31:03,870
654 36
2015-06-02 12:31:06,412 2 2015-06-02 12:31:05,874 2015-06-02 12:31:06,412
538 36
2015-06-02 12:31:08,706 3 2015-06-02 12:31:08,413 2015-06-02 12:31:08,706
293 36
2015-06-02 12:31:11,137 4 2015-06-02 12:31:10,707 2015-06-02 12:31:11,137
430 36
2015-06-02 12:31:13,481 5 2015-06-02 12:31:13,138 2015-06-02 12:31:13,481
343 36
2015-06-02 12:31:15,751 6 2015-06-02 12:31:15,482 2015-06-02 12:31:15,751
269 36
2015-06-02 12:31:18,007 7 2015-06-02 12:31:17,752 2015-06-02 12:31:18,007
255 36
2015-06-02 12:31:20,394 8 2015-06-02 12:31:20,008 2015-06-02 12:31:20,394
386 36
2015-06-02 12:31:22,652 9 2015-06-02 12:31:22,395 2015-06-02 12:31:22,651
256 36
2015-06-02 12:31:24,978 10 2015-06-02 12:31:24,652 2015-06-02 12:31:24,978
326 36
2015-06-02 12:31:27,197 11 2015-06-02 12:31:26,979 2015-06-02 12:31:27,197
218 36
2015-06-02 12:31:29,492 12 2015-06-02 12:31:29,198 2015-06-02 12:31:29,491
293 36
2015-06-02 12:31:31,793 13 2015-06-02 12:31:31,492 2015-06-02 12:31:31,793
301 36
2015-06-02 12:31:34,201 14 2015-06-02 12:31:33,797 2015-06-02 12:31:34,200
403 36
2015-06-02 12:31:36,613 15 2015-06-02 12:31:36,201 2015-06-02 12:31:36,613
412 36
2015-06-02 12:31:38,985 16 2015-06-02 12:31:38,613 2015-06-02 12:31:38,985
372 36
2015-06-02 12:31:46,273 17 2015-06-02 12:31:40,986 2015-06-02 12:31:46,273
5287 36
2015-06-02 12:31:52,985 18 2015-06-02 12:31:48,279 2015-06-02 12:31:52,985
4706 36
2015-06-02 12:31:59,411 19 2015-06-02 12:31:54,986 2015-06-02 12:31:59,411
4425 36
2015-06-02 12:32:04,024 20 2015-06-02 12:32:01,412 2015-06-02 12:32:04,024
2612 36
2015-06-02 12:32:08,579 21 2015-06-02 12:32:06,025 2015-06-02 12:32:08,579
2554 36
2015-06-02 12:32:12,383 22 2015-06-02 12:32:10,580 2015-06-02 12:32:12,357
1777 36
2015-06-02 12:32:17,115 23 2015-06-02 12:32:14,384 2015-06-02 12:32:17,115
2731 36
2015-06-02 12:32:21,188 24 2015-06-02 12:32:19,115 2015-06-02 12:32:21,188
2073 36
2015-06-02 12:32:25,074 25 2015-06-02 12:32:23,189 2015-06-02 12:32:25,073
1884 36
2015-06-02 12:32:28,785 26 2015-06-02 12:32:27,074 2015-06-02 12:32:28,785
1711 36
2015-06-02 12:32:32,282 27 2015-06-02 12:32:30,786 2015-06-02 12:32:32,282
1496 36
I can definitely tell based on my tests that there is some kind of bottleneck
somewhere and I can’t seem to be able to figure out what to Tune to get
constant response time under load.
I am using the latest and greatest version of Axis2 for java.
Any help would be greatly appreciated.
Thanks,
-Kris
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