OpenJDK Client VM warning: You have loaded library /home/elasticsearch/elasticsearch-0.90.5/lib/sigar/libsigar-x86-linux.so which might have disabled stack guard. The VM will try to fix the stack guard now. It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. [elasticsearch@localhost elasticsearch-0.90.5]$ ./bin/elasticsearch -f [2013-09