it is taking longer now previoiusly services were returning the monitoring checks in and around an hour but now it is taking more, around 2 hours and more
Oct 8 10:21:37 nagiosxi ndo2db: Warning: queue send error, retrying...
Oct 8 10:21:38 nagiosxi ndo2db: Message sent to queue.
Oct 8 10:21:38 nagiosxi ndo2db: Warning: queue send error, retrying...
Oct 8 10:21:39 nagiosxi ndo2db: Message sent to queue.
Oct 8 10:21:39 nagiosxi ndo2db: Warning: queue send error, retrying...
Oct 8 10:21:40 nagiosxi ndo2db: Message sent to queue.
Oct 8 10:21:40 nagiosxi ndo2db: Warning: queue send error, retrying...
Oct 8 10:21:41 nagiosxi ndo2db: Message sent to queue.
Oct 8 10:21:41 nagiosxi ndo2db: Warning: queue send error, retrying...
I have increased the values in sysctl.conf but it is not helping
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
error: "net.bridge.bridge-nf-call-ip6tables" is an unknown key
error: "net.bridge.bridge-nf-call-iptables" is an unknown key
error: "net.bridge.bridge-nf-call-arptables" is an unknown key
kernel.msgmnb = 393216000
kernel.msgmax = 393216000
kernel.shmmax = 4294967295
kernel.shmall = 268435456
kernel.msgmni = 512000
the time when queue is retrying nagios has no cpu load in top
like this
top - 10:23:52 up 60 days, 19:04, 2 users, load average: 0.05, 3.10, 8.51
Tasks: 219 total, 1 running, 218 sleeping, 0 stopped, 0 zombie
Cpu(s): 38.1%us, 9.7%sy, 0.0%ni, 44.8%id, 7.1%wa, 0.0%hi, 0.3%si, 0.0%st
Mem: 5985396k total, 3554384k used, 2431012k free, 161800k buffers
Swap: 2064376k total, 44668k used, 2019708k free, 1334504k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
47743 nagios 20 0 59640 11m 1064 S 17.6 0.2 1:09.94 ndo2db
47742 nagios 20 0 49840 1696 984 S 3.9 0.0 0:10.56 ndo2db
47735 nagios 20 0 753m 331m 161m S 2.0 5.7 0:16.57 nagios
but once queue is cleared the system cpu load shoot to higher side
around
load average: 18.06, 15.59, 10.83