Ubuntu 12.04和cassandra安装 – HeapDumpOnOutOfMemoryError -Xss128k

当我安装时,我得到以下内容.我该怎么办？

service cassandra start
xss =  -ea -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -xms1001M -Xmx1001M -Xmn100M -XX:+HeapDumpOnOutOfMemoryError -Xss128k

root@i-157-16647-VM:~# service cassandra status
xss =  -ea -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -xms1001M -Xmx1001M -Xmn100M -XX:+HeapDumpOnOutOfMemoryError -Xss128k
 * Cassandra is not running

我在一台有2台RAM的机器上运行.以下是我在虚拟机上安装的方法.

sudo vi /etc/apt/sources.list
#add sources.list
     deb http://debian.datastax.com/community stable main
     deb http://us.archive.ubuntu.com/ubuntu/ precise main contrib non-free

curl -L http://debian.datastax.com/debian/repo_key | sudo apt-key add -
sudo apt-get update
sudo apt-get install python-cql dsc1.1


root@i-157-16647-VM:~# java -version
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.3) (6b24-1.11.3-1ubuntu0.12.04.1)
OpenJDK 64-Bit Server VM (build 20.0-b12,mixed mode)

/var/log/cassandra/output.log
Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unkNown: java.net.UnkNownHostException: i-157-16647-VM: i-157-16647-VM
Service exit with a return value of 1
Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unkNown: java.net.UnkNownHostException: i-157-16647-VM: i-157-16647-VM
Service exit with a return value of 1