After a software upgrade to version 9.8.2.0 build 24 the first 10-15 minutes all R700 dual band AP's on the 5 Ghz band select channel 100

[arthur_hulsman]

After a software upgrade to version 9.8.2.0 build 24 the first 10-15 minutes all R700 dual band AP's on the 5 Ghz band select channel 100 channelfly enabled,
2.4 Ghz band are spread ok (channel 1,3,6,11 for example) from the beginning.

So the first 15 minutes after the upgrade the throughput of the WIFI network is unstable, for  all the stations which connect to the 5 Ghz band.

After the 15 minutes channelfly will start changing automatically the channels.

Is there an setting on the Zonedirector, to change this behavior for the 5 Ghz band, that after an upgrade the Zonedirector choose an unique channel instead of all AP's on channel 100.

[michael_brado]

Btw, Ruckus didn't choose one specific channel, that was the beginning channel, and because there is no background scanning the APs never changed.

Background scanning, and mesh, spectrum analysis, etc for R700 and all other 802.11ac APs are all enabled in 9.10 release code.

[arthur_hulsman]

 Michael Brado thank you for the update.
We noticed that 3 of our 30 R700 AP's the memory usage increases with 8% extra memory usage per week, since we upgrade to version 9.8.2.0.24 .
We create a case for that 00270832.
If this was the NTP memory leak i suppose that all the AP's have the same behaviour and not only 3 of the 30 AP's.
Is there an CLI command on the AP to see which unix process caused the high memory usage.

[michael_brado]

Hi Arthur,

    The issue only affects 9.8.2, and isn't present in 9.9+.  I can't find a command
from the AP CLI but if you review the "TOPs" section under the AP support info
file, there should not be more than one or two instances of:

"/usr/sbin/timer start"

seen.  To workaround, disable NTP on the ZD Configure/System page and reboot
your APs.

[michael_brado]

This example has only the one single instance:

### Top: ###
Mem: 70292K used, 55760K free, 0K shrd, 2900K buff, 11680K cached
CPU:  18% usr  36% sys   9% nic  36% idle   0% io   0% irq   0% sirq
Load average: 0.12 0.13 0.06 1/52 8617
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
  143    24 root     S N   5936   5%  18% /usr/sbin/timer start
 8597  8596 root     R     1260   1%   9% top -n 1 -b
 2358  1571 root     S     7932   6%   0% /usr/sbin/apmgr -r start
 1572  1571 root     S <   7932   6%   0% /usr/sbin/apmgr -r start
 2357  1571 root     S <   7932   6%   0% /usr/sbin/apmgr -r start

[arthur_hulsman]

Michael Brado we only have one timer process running on the 3 AP's, so probably this is not the NTP memory leak.

Herewith the overview of the process which has 1% or more memory usage.

The memory usage is now ~ 65%.

What is the memory usage rate before the service is impacting for the connected stations ?



# ap1 #####################################################################################
### Top: ###
Mem: 152344K used, 102920K free, 0K shrd, 3212K buff, 10544K cached
CPU:  25% usr  25% sys   0% nic   0% idle   0% io   0% irq  50% sirq
Load average: 0.00 0.00 0.00 2/56 19517
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
19474 19473 root     R     1104   0%   8% top -n 1 -b 
    5     2 root     SW       0   0%   8% [events/0]
 1287     1 root     S     7556   3%   0% /usr/sbin/avpd -i cif0 -D 
 1084     1 root     S     6940   3%   0% /usr/sbin/snmpd udp:161,udp6:161 -p /
 1980  1167 root     S     6936   3%   0% /usr/sbin/apmgr -r start 
 1169  1167 root     S <   6936   3%   0% /usr/sbin/apmgr -r start 
 1979  1167 root     S <   6936   3%   0% /usr/sbin/apmgr -r start 
 1978  1167 root     S <   6936   3%   0% /usr/sbin/apmgr -r start 
 1167  1105 root     S     6936   3%   0% /usr/sbin/apmgr -r start 
 1105     1 root     S     6936   3%   0% /usr/sbin/apmgr -r start 
 1981  1167 root     S     6936   3%   0% /usr/sbin/apmgr -r start 
 1047     1 root     S N   6268   2%   0% webs -s -p 80 -P 443 
18793 18674 root     S     5960   2%   0% /usr/bin/-rkscli 
 1303     1 root     S     5884   2%   0% /usr/sbin/statd -t 300 -n 50 -v 500 -
  900     1 root     S     5816   2%   0% /usr/bin/msgd 
15496     1 root     S <   5812   2%   0% mdnsproxy 
 1321     1 root     S     5512   2%   0% /usr/bin/-rkscli 
 1090     1 root     S N   5320   2%   0% /usr/sbin/snmptrap -p /var/run/snmptr
  148    66 root     D N   5200   2%   0% /usr/sbin/timer start 
  208     1 root     S     5120   2%   0% eved 
 1049    66 root     S     5108   2%   0% /usr/sbin/rfwd start 
 1156     1 root     S     5092   2%   0% /usr/sbin/wipingd 
 1179  1156 root     S     5092   2%   0% /usr/sbin/wipingd 
 1181  1179 root     S     5092   2%   0% /usr/sbin/wipingd 
 1131     1 root     S     4988   2%   0% /usr/sbin/channelfly -i wifi1 -q 
  909     1 root     S     4968   2%   0% rksmcast 
 1138     1 root     S     4964   2%   0% /usr/sbin/channelfly -i wifi0 -q 
 5558     1 root     S     4964   2%   0% /usr/bin/stainfod 
   65     1 root     S <   4960   2%   0% /usr/sbin/rsmd start 
   66     1 root     S     4960   2%   0% /usr/sbin/rsmd start 
14873     1 root     S     2740   1%   0% mdnsd 
  200     1 root     S <   1360   1%   0% syslogd -C 256 -L -j 4 -f 22 -y 7 -B 

# ap2 #####################################################################################

### Top: ###
Mem: 172716K used, 82548K free, 0K shrd, 3204K buff, 10384K cached
CPU:   0% usr   0% sys   0% nic 100% idle   0% io   0% irq   0% sirq
Load average: 0.08 0.02 0.10 1/55 17539
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
 1982  1172 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1287     1 root     S     7560   3%   0% /usr/sbin/avpd -i cif0 -D 
 1084     1 root     S     6956   3%   0% /usr/sbin/snmpd udp:161,udp6:161 -p /
 1174  1172 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 1981  1172 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 1980  1172 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 1172  1105 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1105     1 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1983  1172 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1051     1 root     S N   6268   2%   0% webs -s -p 80 -P 443 
16795 16794 root     S     5964   2%   0% /usr/bin/-rkscli 
 1303     1 root     S     5892   2%   0% /usr/sbin/statd -t 300 -n 50 -v 500 -
14701     1 root     S <   5812   2%   0% mdnsproxy 
  900     1 root     S     5800   2%   0% /usr/bin/msgd 
 1321     1 root     S     5512   2%   0% /usr/bin/-rkscli 
 1090     1 root     S N   5320   2%   0% /usr/sbin/snmptrap -p /var/run/snmptr
  148    66 root     S N   5200   2%   0% /usr/sbin/timer start 
  208     1 root     S     5184   2%   0% eved 
 1052    66 root     S     5108   2%   0% /usr/sbin/rfwd start 
 1169     1 root     S     5092   2%   0% /usr/sbin/wipingd 
 1193  1169 root     S     5092   2%   0% /usr/sbin/wipingd 
 1195  1193 root     S     5092   2%   0% /usr/sbin/wipingd 
 1150     1 root     S     4988   2%   0% /usr/sbin/channelfly -i wifi1 -q 
  909     1 root     S     4968   2%   0% rksmcast 
 1167     1 root     S     4964   2%   0% /usr/sbin/channelfly -i wifi0 -q 
 5297     1 root     S     4964   2%   0% /usr/bin/stainfod 
   65     1 root     S <   4960   2%   0% /usr/sbin/rsmd start 
   66     1 root     S     4960   2%   0% /usr/sbin/rsmd start 
14111     1 root     S     2748   1%   0% mdnsd 
  200     1 root     S <   1360   1%   0% syslogd -C 256 -L -j 4 -f 22 -y 7 -B 
  
# ap3 ##########################################################################################

### Top: ###
Mem: 177548K used, 77716K free, 0K shrd, 3212K buff, 10228K cached
CPU:   0% usr   0% sys   0% nic  90% idle   0% io   0% irq   9% sirq
Load average: 0.08 0.02 0.01 1/55 18120
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
 1367     1 root     S     7024   3%   0% /usr/sbin/avpd -i cif0 -D 
 1164     1 root     S     6948   3%   0% /usr/sbin/snmpd udp:161,udp6:161 -p /
 2076  1217 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1220  1217 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 2075  1217 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 2074  1217 root     S <   6892   3%   0% /usr/sbin/apmgr -r start 
 1217  1185 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1185     1 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 2077  1217 root     S     6892   3%   0% /usr/sbin/apmgr -r start 
 1125     1 root     S N   6268   2%   0% webs -s -p 80 -P 443 
17388 17377 root     S     5956   2%   0% /usr/bin/-rkscli 
  970     1 root     S     5856   2%   0% /usr/bin/msgd 
 1383     1 root     S     5828   2%   0% /usr/sbin/statd -t 300 -n 50 -v 500 -
15151     1 root     S <   5812   2%   0% mdnsproxy 
 1401     1 root     S     5512   2%   0% /usr/bin/-rkscli 
 1170     1 root     S N   5320   2%   0% /usr/sbin/snmptrap -p /var/run/snmptr
  148    66 root     S N   5196   2%   0% /usr/sbin/timer start 
  208     1 root     S     5112   2%   0% eved 
 1126    66 root     S     5108   2%   0% /usr/sbin/rfwd start 
 1212     1 root     S     5092   2%   0% /usr/sbin/wipingd 
 1236  1212 root     S     5092   2%   0% /usr/sbin/wipingd 
 1238  1236 root     S     5092   2%   0% /usr/sbin/wipingd 
 1205     1 root     S     4988   2%   0% /usr/sbin/channelfly -i wifi1 -q 
  979     1 root     S     4968   2%   0% rksmcast 
 1208     1 root     S     4964   2%   0% /usr/sbin/channelfly -i wifi0 -q 
   65     1 root     S <   4960   2%   0% /usr/sbin/rsmd start 
   66     1 root     S     4960   2%   0% /usr/sbin/rsmd start 
 5487     1 root     S     4956   2%   0% /usr/bin/stainfod 
14673     1 root     S     2740   1%   0% mdnsd 
  200     1 root     S <   1360   1%   0% syslogd -C 256 -L -j 4 -f 22 -y 7 -B