On 31 January 2013 14:30, Ben Litchfield <[email protected]> wrote: > I'm having an issue with getting jmeter to refresh it's DNS cache > > JRE 1.7 > > I'm attempting to do some load testing against an amazon ELB. The ELB > is pre-warmed and has 8 ip addresses > > for example > > nslookup mylb.us-east-1.elb.amazonaws.com > Addresses: x.x.x.98 > x.x.x.87 > x.x.x.164 > x.x.x.96 > x.x.x.143 > x.x.x.186 > x.x.x.85 > x.x.x.75 > > But when I run my test it only ever uses a single ip address. > > I'm using a SOAP/XML-RPC Request KeepAlive=False and as its running I > call "netstat -n -a" to see what IP it's connecting to. For a test > run it only uses a single ip address. When I restart JMeter it will > start using a new ip address. > > I reviewed on the web and have attempted to set > networkaddress.cache.ttl=0 sun.net.inetaddr.ttl=0 in all recommended > locations > > 1)adding -Dsun.net.inetaddr.ttl=0 to JVM_ARGS > jmeter -q test.properties -t UnloadedPolling-5000.jmx java.exe > -XX:+HeapDumpOnOutOfMemoryError -Xms512m -Xmx512m -XX:NewSize=128m > XX:MaxNewSize=128m -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=50 > -XX:MaxTenuringThreshold=2 -Dsun.rmi.dgc.client.gcInterval=600000 > -sun.rmi.dgc.server.gcInterval=600000 -XX:PermSize=64m > -XX:MaxPermSize=64m -Dsun.net.inetaddr.ttl=0 -jar > "C:\javalib\apache-jmeter-2.8\bin\ApacheJMeter.jar" -q test.properties > -t UnloadedPolling-5000.jmx > > 2)Adding the below to test.properties (note above command line) > networkaddress.cache.ttl=0 > sun.net.inetaddr.ttl=0 > > 3)Updated JRE\lib\security\java.security > networkaddress.cache.ttl=0 > > But it still only uses a single address. > > Any additional thoughts?
The OS might also cache. > Thanks, > Ben > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
