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hahayaoniming edited comment on TS-3164 at 6/29/15 6:57 AM: ------------------------------------------------------------ I find some phenomena relating to this problem: 1. It always happens when memory under heavy usage(75%+). 2. It won't happen if I restart the traffic_server once a day. 3. The memory usage grows slowly, about 2% everyday. I suspect there's some memory leaks, but I can't prove this. was (Author: hahayaoniming): I find some phenomena relating to this problem: 1. It always happens when memory under heavy usage. 2. It won't happen if I restart the traffic_server once a day. 3. The memory usage grows slowly, about 2% everyday. I suspect there's some memory leaks, but I can't prove this. > Why the load of trafficserver occurs an abrupt rise on a occasion ? > ------------------------------------------------------------------- > > Key: TS-3164 > URL: https://issues.apache.org/jira/browse/TS-3164 > Project: Traffic Server > Issue Type: Bug > Components: Core > Environment: CentOS 6.3 64bit, 8 cores, 128G mem > Reporter: taoyunxing > Fix For: sometime > > > I use Tsar to monitor the traffic status of the ATS 4.2.0, and come across > the following problem: > {code} > Time ---cpu-- ---mem-- ---tcp-- -----traffic---- --sda--- --sdb--- > --sdc--- ---load- > Time util util retran bytin bytout util util > util load1 > 03/11/14-18:20 40.67 87.19 3.36 24.5M 43.9M 13.02 94.68 > 0.00 5.34 > 03/11/14-18:25 40.30 87.20 3.27 22.5M 42.6M 12.38 94.87 > 0.00 5.79 > 03/11/14-18:30 40.84 84.67 3.44 21.4M 42.0M 13.29 95.37 > 0.00 6.28 > 03/11/14-18:35 43.63 87.36 3.21 23.8M 45.0M 13.23 93.99 > 0.00 7.37 > 03/11/14-18:40 42.25 87.37 3.09 24.2M 44.8M 12.84 95.77 > 0.00 7.25 > 03/11/14-18:45 42.96 87.44 3.46 23.3M 46.0M 12.96 95.84 > 0.00 7.10 > 03/11/14-18:50 44.00 87.42 3.49 22.3M 43.0M 14.17 94.99 > 0.00 6.57 > 03/11/14-18:55 42.20 87.44 3.46 22.3M 43.6M 13.19 96.05 > 0.00 6.09 > 03/11/14-19:00 44.90 87.53 3.60 23.6M 46.5M 13.61 96.67 > 0.00 8.06 > 03/11/14-19:05 46.26 87.73 3.24 25.8M 49.1M 15.39 94.05 > 0.00 9.98 > 03/11/14-19:10 43.85 87.69 3.19 25.4M 50.9M 12.88 97.80 > 0.00 7.99 > 03/11/14-19:15 45.28 87.69 3.36 25.6M 49.6M 13.10 96.86 > 0.00 7.47 > 03/11/14-19:20 44.11 85.20 3.29 24.1M 47.8M 14.24 96.75 > 0.00 5.82 > 03/11/14-19:25 45.26 87.78 3.52 24.4M 47.7M 13.21 95.44 > 0.00 7.61 > 03/11/14-19:30 44.83 87.80 3.64 25.7M 50.8M 13.27 98.02 > 0.00 6.85 > 03/11/14-19:35 44.89 87.78 3.61 23.9M 49.0M 13.34 97.42 > 0.00 7.04 > 03/11/14-19:40 69.21 88.88 0.55 18.3M 33.7M 11.39 71.23 > 0.00 65.80 > 03/11/14-19:45 72.47 88.66 0.27 15.4M 31.6M 11.51 72.31 > 0.00 11.56 > 03/11/14-19:50 44.87 88.72 4.11 22.7M 46.3M 12.99 97.33 > 0.00 8.29 > {code} > > in addition, top command show > {code} > hi:0 > ni:0 > si:45.56 > st:0 > sy:13.92 > us:12.58 > wa:14.3 > id:15.96 > {code} > who help me ? thanks in advance. -- This message was sent by Atlassian JIRA (v6.3.4#6332)