starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...

starting up 1 shared server(s) ...

Thu Mar  4 11:48:07 2010

ALTER DATABASE   MOUNT

Thu Mar  4 11:48:07 2010

sculkget: failed to lock /u01/app/oracle/product/10.2.0/db_1/dbs/lkFDS exclusive

sculkget: lock held by PID: 3443

Thu Mar  4 11:48:07 2010

ORA-09968: unable to lock file

Linux Error: 11: Resource temporarily unavailable

Additional information: 3443

Thu Mar  4 11:48:07 2010

ORA-1102 signalled during: ALTER DATABASE   MOUNT...

提示进程3443锁定该资源，根据上次的启动日志发现该进程是Oracle的后台进程

DBWR，根据文档提示236794.1可能是该进程已经挂死，导致数据库无法正常运行。

fuser -u /u01/app/oracle/product/10.2.0/db_1/dbs/lkFDS

PMON started with pid=2, OS id=3437

MMAN started with pid=4, OS id=3441

PSP0 started with pid=3, OS id=3439

DBW0 started with pid=5, OS id=3443

LGWR started with pid=6, OS id=3445

CKPT started with pid=7, OS id=3447

SMON started with pid=8, OS id=3449

RECO started with pid=9, OS id=3451

CJQ0 started with pid=10, OS id=3453

MMON started with pid=11, OS id=3455

Tue Feb 16 11:08:17 2010

starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...

MMNL started with pid=12, OS id=3457

Tue Feb 16 11:08:17 2010

starting up 1 shared server(s) ...

Tue Feb 16 11:08:18 2010

ALTER DATABASE   MOUNT

Tue Feb 16 11:08:22 2010

Setting recovery target incarnation to 2

Tue Feb 16 11:08:22 2010

Successful mount of redo thread 1, with mount id 1844152034

Tue Feb 16 11:08:22 2010

Database mounted in Exclusive Mode

Completed: ALTER DATABASE   MOUNT

Tue Feb 16 11:08:22 2010

ALTER DATABASE OPEN

losf 查看锁定进程

# lsof |grep lkFDS

oracle     4476 oracle   17uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4478 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4480 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4482 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4484 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4486 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4488 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4490 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4492 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4494 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4496 oracle   15uR     REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4513 oracle   15u      REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4531 oracle   15u      REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4534 oracle   15u      REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

oracle     4812 oracle   15u      REG        8,7         24    2911344 /var/oracle/product/10.2.0/db_1/dbs/lkFDS

fuser查看锁定进程

# fuser -u /u01/app/oracle/product/10.2.0/db_1/dbs/lkFDS

/u01/app/oracle/product/10.2.0/db_1/dbs/lkFDS:  4476(oracle)  4478(oracle)  4480(oracle)  4482(oracle)  4484(oracle)  4486(oracle)  4488(oracle)  4490(oracle)  4492(oracle)  4494(oracle)  4496(oracle)  4513(oracle)  4531(oracle)  4534(oracle)  4812(oracle)

[root@CHN-DG-3-5CE ~]#

请教fuser的作用及具体用法！

fuser Command

Purpose

Identifies processes using a file or file structure.

Syntax

fuser [ -c | -d | -f ] [ -k ] [ -u ] [ -x ] [ -V ]File ...

Description

The fuser command lists the process numbers of local processes that use the

local or remote files specified by the File parameter. For block special

devices, the command lists the processes that use any file on that device.

c Uses the file as the current directory.

e Uses the file as a program's executable object.

r Uses the file as the root directory.

s Uses the file as a shared library (or other loadable object).

The process numbers are written to standard output in a line with spaces between

process numbers. A new line character is written to standard error after the

last output for each file operand. All other output is written to standard

error.

The fuser command will not detect processes that have mmap regions where that

associated file descriptor has since been closed.

Flags

-c Reports on any open files in the file system containing File.

-d Implies the use of the -c and -x flags. Reports on any open files which have

been unlinked from the file system (deleted from the parent directory). When

of the deleted file.

-f Reports on open instances of File only.

-k Sends the SIGKILL signal to each local process. Only the root user can kill a

process of another user.

-u Provides the login name for local processes in parentheses after the process

number.

-V Provides verbose output.

-x Used in conjunction with -c or -f, reports on executable and loadable objects

in addition to the standard fuser output.

Examples

1. To list the process numbers of local processes using the /etc/passwd file,

enter:

fuser /etc/passwd

2. To list the process numbers and user login names of processes using the

fuser -u /etc/filesystems

3. To terminate all of the processes using a given file system, enter:

fuser -k -x -u /dev/hd1 -OR-

fuser -kxuc /home

Either command lists the process number and user name, and then terminates

each process that is using the /dev/hd1 (/home) file system. Only the root

user can terminate processes that belong to another user. You might want to

use this command