Hello gentlemen,
I can confirm the same behavior on our primary datacenter Xi install. Only way to recover is to restart the mysqld service. I have performed the database repair with no success, but truncating the log entries and notifications then running the repair worked (for a few days). Now I'm back to the notifications query hanging.
System load is very low (averaging around 4% utilization), I/O wait is less than 1%. 24 core server, 12GB RAM, 2x 15k SAS RAID0
===Nagios XI Installation Profile===
===System:====
Nagios XI Version : 2011R3.3
ceeprgpmon01.cee.ema.ad.pwcinternal.com 2.6.32-279.9.1.el6.i686 i686
CentOS release 6.3 (Final)
Gnome Installed
===Apache Information====
PHP Version: 5.3.3
Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Server Name: 10.43.174.4
Server Address: 10.43.174.4
Server Port: 443
===Date/Time====
PHP Timezone: Not set
PHP Time: Wed, 03 Oct 2012 09:36:16 +0200
System Time: Wed, 03 Oct 2012 09:36:16 +0200
===Nagios XI Data====
nagios (pid 30564) is running...
NPCD running (pid 18589).
ndo2db (pid 1149) is running...
CPU Load 15: 2.15
Total Hosts: 523
Total Services: 4543
===Ping Test localhost====
Running:
/bin/ping -c 3 localhost 2>&1
PING ceeprgpmon01 (127.0.0.1) 56(84) bytes of data.
64 bytes from ceeprgpmon01 (127.0.0.1): icmp_seq=1 ttl=64 time=0.035 ms
64 bytes from ceeprgpmon01 (127.0.0.1): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from ceeprgpmon01 (127.0.0.1): icmp_seq=3 ttl=64 time=0.032 ms
--- ceeprgpmon01 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 0.029/0.032/0.035/0.002 ms
===Test wget To locahost====
WGET From URL:
http://localhost/nagiosql/index.php
Running:
/usr/bin/wget
http://localhost/nagiosql/index.php
--2012-10-03 09:36:18--
http://localhost/nagiosql/index.php
Resolving localhost... ::1, 127.0.0.1
Connecting to localhost|::1|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 5259 (5.1K) [text/html]
Saving to: `/tmp/nagiosql_index.tmp'
0K ..... 100% 555M=0s
2012-10-03 09:36:18 (555 MB/s) - `/tmp/nagiosql_index.tmp' saved [5259/5259]