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Hi all,
I have two directors and two webservers with Apache/PHP/MySql. Directors
are managed by heartbeat and ldirectord. My problem is that when the
apache process is stopped and restarted on one webserver for update
needs (databases + PHP files + ...), a few seconds after the service is
not responding and i can see in the apache error_log messages like
"server reached MaxClients setting, consider raising the MaxClients
setting" and a "netstat -anp" shows many connections in CLOSE_WAIT state
from the directors.
My settings are :
ldirectord :
"...
checktimeout=1
checkinterval=5
autoreload=yes
quiescent=no
virtual=<VIP>:80
fallback=127.0.0.1:80
real=192.168.2.11:80 masq
real=192.168.2.12:80 masq
service=http
negotiatetimeout = 1
request="test.html"
receive="Test page"
protocol=tcp
checktype=negotiate
"
Apache :
"...
KeepAlive On
MaxKeepAliveRequests 50
KeepAliveTimeout 5
MinSpareServers 10
MaxSpareServers 20
StartServers 5
MaxClients 256
MaxRequestsPerChild 100
..."
# netstat -anp | grep httpd
tcp 0 0 192.168.2.11:80 0.0.0.0:*
LISTEN 897/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58824
CLOSE_WAIT 904/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58828
CLOSE_WAIT 901/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58816
CLOSE_WAIT 913/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58820
CLOSE_WAIT 915/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58840
CLOSE_WAIT 940/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58844
CLOSE_WAIT 943/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58832
CLOSE_WAIT 927/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58836
CLOSE_WAIT 930/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58856
CLOSE_WAIT 968/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58860
CLOSE_WAIT 971/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58848
CLOSE_WAIT 954/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58852
CLOSE_WAIT 957/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58872
CLOSE_WAIT 996/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58864
CLOSE_WAIT 982/httpd
tcp 1 0 192.168.2.11:80 192.168.2.1:58868
CLOSE_WAIT 985/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47627
CLOSE_WAIT 905/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47631
CLOSE_WAIT 902/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47619
CLOSE_WAIT 914/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47623
CLOSE_WAIT 903/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47643
CLOSE_WAIT 942/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47647
CLOSE_WAIT 948/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47635
CLOSE_WAIT 929/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47639
CLOSE_WAIT 933/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47659
CLOSE_WAIT 970/httpd
tcp 1 0 192.168.2.11:80 192.168.2.2:47663
CLOSE_WAIT 976/httpd
..."
192.168.2.1 and 192.168.2.2 are the "internal" IPs of directors.
What can i do to correct this pb ? Is it a pb in my apache config ? Or
in ldirectord ?
Many thanks.
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