The following **untested** change to `/etc/tomcat6/server.xml` should turn on compression for JSON responses starting at 2KiB. (I took the opportunity to also changes "metrics" to "onionoo" in two places.) ``` maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" - compression="off" compressionMinSize="2048" + compression="on" compressionMinSize="2048" noCompressionUserAgents="gozilla, traviata" - compressableMimeType="text/html,text/xml,text/plain" /> + compressableMimeType="application/json" /> <Engine name="Catalina" defaultHost="sewerzowi.torproject.org"> - <Host name="metrics.torproject.org" appBase="webapps" + <Host name="onionoo.torproject.org" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Alias>sewerzowi.torproject.org</Alias> <Valve className="org.apache.catalina.valves.AccessLogValve" - directory="logs" prefix="metrics_access_log." suffix=".txt" + directory="logs" prefix="onionoo_access_log." suffix=".txt" pattern="%l %u %t %r %s %b" resolveHosts="false"/> </Host> </Engine> ``` If It's easier to compress responses in Apache, not in Tomcat, that's fine by me, too.