遇到ORA-3136的解决之道
今天早上同事打电话说日照业务库第二个节点登录不进去，业务没法使用，weblogic第二个节点测不通。
PLSQL登录就死住,最后是end-of-communcation chanel ,估计出现了严重的数据库故障。
telnet进AIX小机,crs_stat状态,发现第二个节点为unkown,用命令crs_start 启动此实例,结果启动失败,crs_stop倒是能
关闭此实例。
开始动手找原因，在oracle的安装目录下admin文件中bdump的警告文件和udump的trace文件中：
| Tue Jul 18 23:09:22 2006 WARNING: inbound connection timed out (ORA-3136) Tue Jul 18 23:09:23 2006 WARNING: inbound connection timed out (ORA-3136) Tue Jul 18 23:09:25 2006 WARNING: inbound connection timed out (ORA-3136) Tue Jul 18 23:09:30 2006 WARNING: inbound connection timed out (ORA-3136) Tue Jul 18 23:12:15 2006 WARNING: inbound connection timed out (ORA-3136) |
同时在sqlnet.log中记录了如下错误:
| Fatal NI connect error 12170. VERSION INFORMATION: |
在eygle的网站有解决办法：
这是和网络连接相关的一个错误,Metalink上给出了如下的解决方案:
1.set INBOUND_CONNECT_TIMEOUT_<listenername>=0 in listener.ora
2. set SQLNET.INBOUND_CONNECT_TIMEOUT = 0 in sqlnet.ora of server.
3. stop and start both listener and database.
4. Now try to connect to DB and observe the behaviour
详细的解决：
修改listener的inbound_connect_timeout参数的方法
方法一:
[bglbj1][oracle][/home/oracle]>lsnrctl
LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 01-SEP-2009 16:28:06
Copyright (c) 1991, 2007, Oracle.All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> help
The following operations are available
An asterisk (*) denotes a modifier or extended command:
startstopstatus
servicesversionreload
save_configtracespawn
change_passwordquitexit
set*show*
LSNRCTL> show
The following operations are available after show
An asterisk (*) denotes a modifier or extended command:
rawmodedisplaymode
rulestrc_file
trc_directorytrc_level
log_filelog_directory
log_statuscurrent_listener
inbound_connect_timeoutstartup_waittime
snmp_visiblesave_config_on_stop
dynamic_registration
LSNRCTL> set
The following operations are available after set
An asterisk (*) denotes a modifier or extended command:
passwordrawmode
displaymodetrc_file
trc_directorytrc_level
log_filelog_directory
log_statuscurrent_listener
inbound_connect_timeoutstartup_waittime
save_config_on_stopdynamic_registration
LSNRCTL>
LSNRCTL> show inbound_connect_timeout
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 60
The command completed successfully
LSNRCTL> set inbound_connect_timeout 0
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 0
The command completed successfully
LSNRCTL> show inbound_connect_timeout
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
LISTENER parameter "inbound_connect_timeout" set to 0
The command completed successfully
LSNRCTL> set save_config_on_stop on#表示修改参数永久生效，否则只是临时生效，下次重启监听又还原为原来的值了
LSNRCTL> exit
方法二：
修改listener.ora文件，加入:INBOUND_CONNECT_TIMEOUT_LISTENER_NAME=0
问题解决
修改后依然是启动不了数据库，但在依然启动不了数据库连sqlplus环境都进不去，我查看来最新一个udump 下的
trc文件，其中有Dumping diagnostic information for LCK0:
OS pid = 422264
loadavg : 0.23 0.25 0.26
swap info: free_mem = 17.67M rsv = 128.00M
alloc = 12067.13M avail = 32768.00M swap_free = 20700.87M
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
240001 A oracle 422264 1 0 60 20 a0b36400 106964 Feb 10 - 1:47 ora_lck0_rzywk2
open: The file access permissions do not allow the specified action.
Warning: executed in non-root mode
procstack cannot verify that /unix matches the running kernel.
Kernel symbols might not be validated.
422264: ora_lck0_rzywk2
0x00000001000fc898 sskgpwwait(??, ??, ??, ??, ??) + 0x38
0x00000001000f9e7c skgpwwait(??, ??, ??, ??, ??) + 0xbc
0x000000010011e42c kslges(??, ??, ??, ??, ??) + 0x54c
0x000000010012225c kslgetl(??, ??, ??, ??) + 0x33c
0x00000001049f0998 ksfglt(??, ??, ??, ??, ??) + 0x198
0x00000001045d1b84 kqlmbfre() + 0x144
0x00000001045d61c4 kqlmba(??, ??) + 0x24
0x000000010015efa8 ksbcti(??, ??, ??) + 0x3c8
0x0000000100169f1c ksbabs(??) + 0x3fc
0x00000001019b5e18 kclabs(??) + 0xd8
0x0000000100166dd4 ksbrdp() + 0x4b4
0x000000010430c93c opirip(??, ??, ??) + 0x3fc
0x0000000102d9ae38 opidrv(??, ??, ??) + 0x458
0x000000010370b950 sou2o(??, ??, ??, ??) + 0x90
0x0000000100000870 opimai_real(??, ??) + 0x150
0x00000001000006d8 main(??, ??) + 0x98
0x0000000100000368 __start() + 0x98
*** 2011-02-12 05:20:09.050
*** 2011-02-12 05:20:19.051
Waited for detached process: LCK0 for 310 seconds:
*** 2011-02-12 05:20:19.051
Dumping diagnostic information for LCK0:
OS pid = 422264
loadavg : 0.36 0.27 0.27
swap info: free_mem = 32.64M rsv = 128.00M
alloc = 12072.14M avail = 32768.00M swap_free = 20695.86M
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
240001 A oracle 422264 1 0 60 20 a0b36400 106964 Feb 10 - 1:47 ora_lck0_rzywk2
open: The file access permissions do not allow the specified action.
Warning: executed in non-root mode
procstack cannot verify that /unix matches the running kernel.
Kernel symbols might not be validated.
依据此处和alterSID.log的内容：
ksvcreate: Process(m000) creation failed
Sat Feb 12 05:19:14 2011
Errors in file /oracle/app/oracle/admin/rzywk/bdump/rzywk2_j002_512250.trc:
ORA-12012: error on auto execute of job 42791
ORA-27468: "EXFSYS.RLM$EVTCLEANUP" is locked by another process
Sat Feb 12 05:40:42 2011
Errors in file /oracle/app/oracle/admin/rzywk/bdump/rzywk2_j002_614620.trc:
ORA-12012: error on auto execute of job 42792
ORA-27468: "EXFSYS.RLM$SCHDNEGACTION" is locked by another process
Sat Feb 12 05:45:05 2011
Errors in file /oracle/app/oracle/admin/rzywk/bdump/rzywk2_j003_516258.trc:
ORA-12012: error on auto execute of job 42791
ORA-27468: "EXFSYS.RLM$EVTCLEANUP" is locked by another process
Sat Feb 12 05:55:20 2011
kkjcre1p: unable to spawn jobq slave process
Sat Feb 12 05:55:20 2011
Errors in file /oracle/app/oracle/admin/rzywk/bdump/rzywk2_cjq0_434552.trc:
Sat Feb 12 05:57:36 2011
kkjcre1p: unable to spawn jobq slave process
Sat Feb 12 05:57:36 2011
Errors in file /oracle/app/oracle/admin/rzywk/bdump/rzywk2_cjq0_434552.trc:
可以判断是oracle内部的进程锁定的,上面的内容说的很清楚，就是422264 这个进程编号,
kill -9 422264 再进入sqlplus "/as sysdba" 可以登录了，startup 数据库成功启动。
看来解决问题还得具体问题具体分析,不过大佬们的文档还是需要借鉴的。
附上解决此问题的其他方案和分析：
http://www.eygle.com/archives/2006/07/sqlnet_inbound_connect_timeout.html
http://topic.csdn.net/u/20080623/17/4383143c-5bf6-462a-b7d6-ac41e50661e9.html