Hi all,
I'm trying to understand what is causing the load on the ats server. Not
sure whether is RAM or disk or CPU is giving the issues.
on top output I can see a lot of iowait.
top - 18:12:00 up 4:32, 3 users, load average: 8.15, 8.20, 8.53
Tasks: 234 total, 2 running, 232 sleeping, 0 stopped, 0 zombie
Cpu(s): 7.2%us, 10.7%sy, 0.0%ni, 34.0%id, *46.5%wa*, 0.0%hi, 1.7%si,
0.0%st
Mem: 7848208k total, 7701228k used, 146980k free, 20008k buffers
Swap: 8388604k total, 426796k used, 7961808k free, 250532k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
14138 ats 20 0 8199m 6.7g 4852 S 9.0 *89.8 *7:23.41
/opt/ats/bin/traffic_server -M --bind_stdout
/opt/ats/var/log/trafficserver/traffic.out --bind_stderr /opt/
*And on iostat,*
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz
avgqu-sz await svctm %util
sda 0.00 83.00 257.00 54.00 134672.00 21248.00 501.35
10.51 33.69 3.22 *100.00*
*on iotop:*
Total DISK READ: 50.46 M/s | Total DISK WRITE: 14.35 M/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
14154 be/4 ats 3.33 M/s 0.00 B/s 0.00 % 91.45 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14156 be/4 ats 7.28 M/s 2025.05 K/s 0.00 % 90.56 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14157 be/4 ats 6.88 M/s 0.00 B/s 0.00 % 90.52 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14155 be/4 ats 2.53 M/s 3.32 M/s 0.00 % 82.89 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14158 be/4 ats 9.58 M/s 3.33 M/s 0.00 % 75.91 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14161 be/4 ats 7.67 M/s 0.00 B/s 0.00 % 73.36 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14159 be/4 ats 5.89 M/s 2025.05 K/s 0.00 % 73.27 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
14160 be/4 ats 7.30 M/s 3.75 M/s 0.00 % 66.01 % traffic_server
-M --bind_stdout /opt/ats/var/log/traf~s/var/log/trafficserver/traffic.out
--httpport 80:fd=9
But I have *disabled *all the logs. I don't know why it still shows. On
production, usually everyone disables the logs?
[root@main ~]# free -m
total used free shared buffers cached
Mem: 7664 7488 *175 *0 13 210
-/+ buffers/cache: 7265 398
Swap: 8191 416 7775
[root@main ~]# w
18:15:25 up 4:35, 3 users, load average: 8.07, 8.14, 8.43
I am using ats to cache live channels. Currently I have enabled 45
channels. We have to enable 400 channels. So I am checking what resources I
have to add.
Any suggestions will be appreciated
Best Regards,
--
Randeep
Mob: +919447831699[kerala]
Mob: +919880050349[B'lore]
http://twitter.com/Randeeppr
http://in.linkedin.com/in/randeeppr
[image: --]
Randeep Raman
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<http://about.me/Randeeppr>
