FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djava.awt.headless=true"

# maximum # keep-alive connections to maintain at once
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttp.maxConnections=20"

# Force the JVM to use IPv4 stack
if [ "x$FESS_USE_IPV4" != "x" ]; then
  FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djava.net.preferIPv4Stack=true"
fi

FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djna.nosys=true"
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djdk.io.permissionsUseCanonicalPath=true"