Question

I want to stop solr by command so if find this article

http://rc98.net/solrinit

echo "Stopping Solr"
        cd $SOLR_DIR
        java -Xmx1024m -DSTOP.PORT=8079 -DSTOP.KEY=stopkey -jar start.jar --stop

what is Xmx1024m ?

and where i will find DSTOP.KEY ?

Please tell proper procedure to start and stop solr by command line.

Answer 1

-XmX1024m – is the java parameter and specifies the maximum java heap size, which in your case is set to 1 GB.

stopkey is a secret key on startup which must also be present on the termination request to enhance security.

You can find a detailed explanation @ http://docs.codehaus.org/display/JETTY/Securing+Jetty

Example –

Starting solr with Jetty –

java -DSTOP.PORT=8079 -DSTOP.KEY=mysecret -jar start.jar

Stopping Solr with Jetty –

java -DSTOP.PORT=8079 -DSTOP.KEY=mysecret -jar start.jar --stop

the STOP.KEY is the secret key which should match during the stop command.