Java
A fatal error has been detected by the Java Runtime Environment
java 1.7.0_65 Hadoop 2.3
启动dfs和yarn集群报错,机器内存2g，启动了yarn，剩余内存还有1g,启动dfs失败。类似下面错误
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f7109914049, pid=8570, tid=140123318765312
#
# JRE version: Java(TM) SE Runtime Environment (7.0_65-b17) (build 1.7.0_65-b17)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V [libjvm.so+0x840049] Parse:lock:uccessor_for_bci(int)+0x19
#
# Core dump written. Default location: /home/hadoop-2.3/core or core.8570
#
# An error report file with more information is saved as:
# /home/hadoop-2.3/hs_err_pid8570.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
解决方法
减小dataNode、nodeManager等每个jvm进程的xmx参数了
