HEAP_DUMP_PATH for vendored jruby. close #453

Author: algesten

templates/default/sv-logstash-run.erb

@@ -8,6 +8,8 @@ exec 2>&1
 # Need to set LOGSTASH_HOME and HOME so sincedb will work
 export LS_HEAP_SIZE=<%= @options[:max_heap] %>
 export LOGSTASH_HOME="<%= @options[:home] %>"
+# Must set HEAP_DUMP_PATH if vendored jruby is to work
+export HEAP_DUMP_PATH="-XX:HeapDumpPath=<%= @options[:home] %>/heapdump.hprof"
 export GC_OPTS="<%= @options[:gc_opts] %>"
 export JAVA_OPTS="-server -Xms<%= @options[:min_heap] %> -Xmx<%= @options[:max_heap] %> -Djava.io.tmpdir=$LOGSTASH_HOME/tmp/ <%= @options[:java_opts] %> <%= '-Djava.net.preferIPv4Stack=true' if @options[:ipv4_only] %>"
 LOGSTASH_OPTS="agent -f $LOGSTASH_HOME/etc/conf.d"