Apache HTTPD version 2.4.10
Tomcat version apache-tomcat-7.0.61
Ubuntu 12.04.5
16G RAM
Dual Core processor 64-bit
Lately I am noticing that the request parameters are present when the
request hits Apache, but are dropped when request reaches tomcat.
for e.g /secure/myprog.cgi?username=user1&masteraccount=master1 (logged in
Apache), however tomcat rejects the request as
request.getParameter("username") can not be null. I have been running the
same code for ages and now I am noticing this. This is happening to roughly
1% of the requests.
Following is my Apache config
APACHE StartServers 15
APACHE MinSpareThreads 25
APACHE MaxSpareThreads 75
APACHE ThreadLimit 512
APACHE ThreadsPerChild 32
APACHE MaxRequestWorkers 2048
APACHE MaxConnectionsPerChild 2048
APACHE AsyncRequestWorkerFactor 3
APACHE ServerLimit 64
And this is my tomcat settings
TOMCAT protocol="AJP/1.3"
TOMCAT packetSize="32000"
TOMCAT maxThreads="800"
TOMCAT processorCache="800"
TOMCAT acceptCount="300"
TOMCAT acceptorThreadCount="2"
TOMCAT minSpareThreads="80"
TOMCAT maxSpareThreads="160"
TOMCAT maxKeepAliveRequests="-1"
TOMCAT maxConnections="8192"
TOMCAT connectionTimeout="360000"
TOMCAT compression="on"
TOMCAT compressableMimeType="text/html,text/xml,text/plain"
TOMCAT redirectPort="8443"
Worker.properties config
worker.ajp_myhost.port=8009
worker.ajp_myhost.host=localhost
worker.ajp_myhost.type=ajp13
worker.ajp_myhost.retries=3
worker.ajp_myhost.recovery_options=27
worker.ajp_myhost.retry_interval=300
worker.ajp_myhost.reply_timeout=20000
worker.ajp_myhost.max_packet_size=32000
worker.ajp_myhost.socket_timeout=360
worker.ajp_myhost.socket_connect_timeout=360000
worker.ajp_myhost.connection_pool_timeout=360
Can someone please help me with 2 things.
1. Has anyone noticed request parameters dropping in transit ?
2. Help with fine tuning my Apache/Tomcat/mod_jk configs. During peak the
server will be handling 50 req/seconds.
Please let me know if you need anymore details.
Thanks
Manish
