Question

我的inode显示您的流量已经耗尽，请隔日使用。怎么回事，我今天一天没用过我的帐号，帐号也不可能被

我的inode显示您的流量已经耗尽，请隔日使用。怎么回事，我今天一天没用过我的帐号，帐号也不可能被别人用，我们的校园网每天限制10个G，但是我帐号今天一点都没用过，怎样解决

Answer 1

方法1：
查看磁盘空间使用情况:

[root@srv-jigocity-web1 iplocate]# df -m
Filesystem 1M-blocks Used Available Use% Mounted on

/dev/mapper/datavg-www
6048 3594 2147 63% /var/www

网站目录已使用63%，还有很多没使用，因此不是磁盘空间的问题。

查看文件索引节点情况:

[root@srv-jigocity-web1 helpers]# df -i
Filesystem Inodes IUsed IFree IUse% Mounted on

/dev/mapper/datavg-www
786432 786432 0 100% /var/www

已经没有空余inode可用，因此导致无法创建新的文件。

原因是大量的cache小文件导致。比如记录用户GEO信息的缓存文件随着用户访问量的增长将会持续快速增长耗尽索引节点资源。

因此在设计时应该尽量避免产生大量琐碎的小文件，大量很小的文件应该把内容放入数据库进行管理。并及时清理临时文件。

方法2：
首先查看log文件，已经2G了，打开看看日志里面也没发现什么异常，认为日志是自然增长到这么大的，于是直接cat /dev/null>listener.log把日志清空。然后listener还是起不来，仍然报上面的错误。之后重启机器，还是不行，检查磁盘空间也没有问题。

显然没这么简单，以前的一些经验，当系统信号量不足时也可能导致这类错误提示。
不过作者最后发现的问题是inode耗尽。
在Linux上，我们可以用df -i来查看inode的分配情况：

[oracle@jumper elog]$ df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/hda3 131616 25376 106240 20% /
/dev/hda1 66264 35 66229 1% /boot
/dev/hda5 1048576 37166 1011410 4% /data1
/dev/hda9 294336 6020 288316 3% /home
/dev/hda6 1048576 20467 1028109 2% /opt
none 64193 1 64192 1% /dev/shm
/dev/hda8 524288 87362 436926 17% /usr
/dev/hda7 524288 1598 522690 1% /var

如果inode耗尽，则系统上将不能创建文件。监听器就可能无法启动。
作者当时耗尽的/var下的inode，那么Oracle监听器是否需要使用var下的空间呢？
我们看一下测试：

[oracle@jumper tmp]$ strace -o lsnrctl.log lsnrctl start

LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 09-JUL-2007 15:45:09
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Starting /opt/oracle/product/9.2.0/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 9.2.0.4.0 - Production
System parameter file is /opt/oracle/product/9.2.0/network/admin/listener.ora
Log messages written to /opt/oracle/product/9.2.0/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
umovestr: Input/output error
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 09-JUL-2007 15:45:09
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /opt/oracle/product/9.2.0/network/admin/listener.ora
Listener Log File /opt/oracle/product/9.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "eygle" has 1 instance(s).
Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...
Service "julia" has 1 instance(s).
Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

检查一下跟踪文件：

[oracle@jumper tmp]$ grep var lsnrctl.log
execve("/opt/oracle/product/9.2.0/bin/lsnrctl", ["lsnrctl", "start"], [/* 33 vars */]) = 0
connect(4, {sa_family=AF_UNIX, path="/var/run/.nscd_socket"}, 110) = -1 ENOENT (No such file or directory)
access("/var/tmp/.oracle", F_OK) = 0
access("/var/tmp/.oracle/sEXTPROC", F_OK) = 0
connect(4, {sa_family=AF_UNIX, path="/var/tmp/.oracle/sEXTPROC"}, 110) = 0

启动监听文件后，/var/tmp/.oracle目录下会创建两个文件，用于外部存储过程调用的监听和本地监听：

[oracle@jumper tmp]$ ll /var/tmp/.oracle/ |wc -l
16
[oracle@jumper tmp]$ lsnrctl stop

LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 09-JUL-2007 15:46:08
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
The command completed successfully
[oracle@jumper tmp]$ ll /var/tmp/.oracle/ |wc -l
14
[oracle@jumper tmp]$ lsnrctl start
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 09-JUL-2007 15:46:13
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Starting /opt/oracle/product/9.2.0/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 9.2.0.4.0 - Production
System parameter file is /opt/oracle/product/9.2.0/network/admin/listener.ora
Log messages written to /opt/oracle/product/9.2.0/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 09-JUL-2007 15:46:13
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /opt/oracle/product/9.2.0/network/admin/listener.ora
Listener Log File /opt/oracle/product/9.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.33.11)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "eygle" has 1 instance(s).
Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...
Service "julia" has 1 instance(s).
Instance "eygle", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@jumper tmp]$ ll /var/tmp/.oracle/ |wc -l
16
[oracle@jumper tmp]$ ll .oracle/
total 0
srwxrwxrwx 1 oracle dba 0 Jan 18 2006 s#11126.1
srwxrwxrwx 1 oracle dba 0 Jan 3 2007 s#12200.1
srwxrwxrwx 1 oracle dba 0 Apr 24 2006 s#14328.1
srwxrwxrwx 1 oracle dba 0 Oct 20 2006 s#14420.1
srwxrwxrwx 1 oracle dba 0 May 8 2006 s#15102.1
srwxrwxrwx 1 oracle dba 0 Mar 18 2005 s#16499.1
srwxrwxrwx 1 oracle dba 0 Jul 9 15:46 s#16661.1
srwxrwxrwx 1 oracle dba 0 May 18 2006 s#21975.1
srwxrwxrwx 1 oracle dba 0 Jun 28 2005 s#23361.1
srwxrwxrwx 1 oracle dba 0 Nov 3 2006 s#27269.1
srwxrwxrwx 1 oracle dba 0 Nov 10 2006 s#4200.1
srwxrwxrwx 1 oracle dba 0 Oct 17 2006 s#6146.1
srwxrwxrwx 1 oracle dba 0 Aug 28 2006 s#6565.1
srwxrwxrwx 1 oracle dba 0 Jun 27 2006 s#9884.1
srwxrwxrwx 1 oracle dba 0 Jul 9 15:46 sEXTPROC

Answer 2

账号被盗用？
联系网络管理员。