MongoDB 磁盘空间不足
有些事情,只有当长时间压力测试的时候,才能暴露出来。MongoDB集群用了几个月了,但是当写了一个长时间运行的压力测试程序后,几
有些事情,只有当长时间压力测试的时候,,才能暴露出来。MongoDB集群用了几个月了,但是当写了一个长时间运行的压力测试程序后,几天时间, primary server不能启动。查看MongoDB日志发现错误信息:
Fri Nov 29 10:49:13.182 [initandlisten] ERROR: Insufficient free space for journal files
Fri Nov 29 10:49:13.182 [initandlisten] Please make at least 3379MB available in /var/lib/mongodb/journal or use --smallfiles
原来默认安装的MongoDB使用率/var磁盘分区作为数据保存的分区,而默认Ubuntu下这个分区并不大。所以安装MongoDB集群时要考虑选择合适大小的分区存放文件和日志,比如这里创建一个目录树, /mongodb/data下存放数据,/mongodb/log下存放日志。
root@vm1:/# tree /mongodb/ -L 1
/mongodb/
├── data
└── log
然后将文件移动到对应的目录下,并修改/etc/mongodb.conf文件里面的配置:
dbpath=/mongodb/data/mongodb
logpath=/mongodb/log/mongodb.log
启动服务,正常了。同理修改其他的mongodb server.
MongoDB 的详细介绍:请点这里
MongoDB 的下载地址:请点这里
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《MongoDB 权威指南》(MongoDB: The Definitive Guide)英文文字版[PDF]

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