启动elasticsearch warning

Question

OpenJDKServerVMwarning:Youhaveloadedlibrary/home/xyz/Downloads/elasticsearch-1.2.1/lib/sigar/libsigar-x86-linux.sowhichmighthavedisabledstackguard.TheVMwilltrytofixthestackguardnow.
It'shighlyrecommendedthatyou,orlinkitwith'-znoexecstack'.
./bin/elasticsearch可以正常起来老是有上面的提示,谁遇到过这样的情况帮忙解决一下谢谢

Answer 1

是不是没有用defaultport（9200或者9300）？

Answer 2

需要jdk版本1.7以上吧