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今天磁盘报警，空间不足，找了很久没查出来。 下面说下我的操作步骤
[root@monitor /]# du -sch /*
6.6M /bin
39M /boot
161M /data
164K /dev
12M /etc
115M /home
240M /lib
25M /lib64
20K /lost+found
4.0K /media
4.0K /mnt
291M /opt
du: cannot access `/proc/27198/task/27198/fd/4': No such file or directory
du: cannot access `/proc/27198/task/27198/fdinfo/4': No such file or directory
du: cannot access `/proc/27198/fd/4': No such file or directory
du: cannot access `/proc/27198/fdinfo/4': No such file or directory
0 /proc
206M /root
11M /sbin
4.0K /selinux
4.0K /srv
0 /sys
1.1M /tmp
2.6G /usr
1.4G /var
5.1G total
一共使用了5.1G磁盘，但是检查出已经使用15G [root@monitor /]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 20G 15G 4.3G 78% /
tmpfs 1.9G 4.0K 1.9G 1% /dev/shm
很奇怪，问群里的大神说是XEN虚拟机运行java会遇到此bug，重启java程序就恢复正常 [root@monitor /]# killall java
[root@monitor /]# ps -ef |grep java
root 27766 26125 0 11:34 pts/0 00:00:00 grep java
[root@monitor /]# /etc/init.d/elasticsearch start
Starting elasticsearch: [ OK ]
[root@monitor /]# cd /usr/local/src/logstash-1.4.2/
[root@monitor logstash-1.4.2]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 20G 5.2G 14G 28% /
tmpfs 1.9G 4.0K 1.9G 1% /dev/shm
[root@monitor logstash-1.4.2]# bin/logstash -f conf/indexer.conf &
[1] 28116
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