centos下 apache-cassandra-2.0.9安装，

centos下 apache-cassandra-2.0.9安装，

准备用户环境

12	groupadd cassandrauseradd -s /bin/bash -g cassandra -d /opt/cassandra cassandra

三、安装cassandra

1、下载

找一个适合的镜像节点：我选的是北京理工大学的节点

1	wget http://mirror.bit.edu.cn/apache/cassandra/2.0.9/apache-cassandra-2.0.9-bin.tar.gz

PS：安全起见自己可以验证一下数据完整性

2、解压、设置权限

123456

tar -zxvf apache-cassandra-2.0.9-bin.tar.gz  -C /opt/cassandrachown -R cassandra:cassandra /opt/cassandramkdir /var/lib/cassandramkdir /var/log/cassandrachown -R cassandra:cassandra /var/lib/cassandrachown -R cassandra:cassandra /var/log/cassandra

 3、运行

切换到cassandra用户，运行bin/cassandra

1 2	cd/opt/cassandra/apache-cassandra-2.0.9/bin/ sucassandra./cassandra

如果出现

12

INFO 02:34:57,479 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/local/system-local-jb-4-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/local/system-local-jb-3-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/local/system-local-jb-1-Data.db'), SSTableReader(path='/var/lib/cassandra/data/system/local/system-local-jb-2-Data.db')] INFO 02:34:57,545 Node localhost/127.0.0.1 state jump to normal

证明成功启动，开一个cqlsh试试

1 2 3 4 5

root@localhostbin]# ./cqlsh ConnectedtoTestClusteratlocalhost:9160. [cqlsh4.1.1|Cassandra2.0.9|CQLspec3.1.1|Thriftprotocol19.39.0] UseHELPforhelp. cqlsh>

4、关闭Cassandra

1 2	ps-aux|grepcassandra killpid#pid为cassandra的pid