## JVM configuration # Xms represents the initial size of total heap space # Xmx represents the maximum size of total heap space -Xms1g -Xmx1g ################################################################ ## Expert settings ################################################################ ## ## All settings below this section are considered ## expert settings. Don't tamper with them unless ## you understand what you are doing ## ################################################################ ## GC configuration -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly ## Locale # Set the locale language #-Duser.language=en # Set the locale country #-Duser.country=US # Set the locale variant, if any #-Duser.variant= ## basic # set the I/O temp directory #-Djava.io.tmpdir=$HOME # set to headless, just in case -Djava.awt.headless=true # ensure UTF-8 encoding by default (e.g. filenames) -Dfile.encoding=UTF-8 # use our provided JNA always versus the system one #-Djna.nosys=true # Turn on JRuby invokedynamic -Djruby.compile.invokedynamic=true # Force Compilation -Djruby.jit.threshold=0 # Make sure joni regexp interruptability is enabled -Djruby.regexp.interruptible=true ## heap dumps # generate a heap dump when an allocation from the Java heap fails # heap dumps are created in the working directory of the JVM -XX:+HeapDumpOnOutOfMemoryError # specify an alternative path for heap dumps # ensure the directory exists and has sufficient space #-XX:HeapDumpPath=${LOGSTASH_HOME}/heapdump.hprof ## GC logging #-XX:+PrintGCDetails #-XX:+PrintGCTimeStamps #-XX:+PrintGCDateStamps #-XX:+PrintClassHistogram #-XX:+PrintTenuringDistribution #-XX:+PrintGCApplicationStoppedTime # log GC status to a file with time stamps # ensure the directory exists #-Xloggc:${LS_GC_LOG_FILE} # Entropy source for randomness -Djava.security.egd=file:/dev/urandom