Oracle数据库的sqlplus无响应挂起处理,网上查看资料得知是oracle的bug引起的,事实上只要Linux x86主机运行天数是24.8的倍数都有可能引发该bug,因为time()函数值为null,造成无限死循环,从而耗尽cpu。接下来我们介绍一下解决办法。

解决办法三种:
1) 重启主机;
2) 打patch set,如升级到10.2.0.4;
3) 对该bug单独打临时patch 4612267。
第一种方法没有彻底解决问题,以后照旧;第二种方法,升级时间长,且要求停库很久,当前生产环境暂不适合;
参考文档:
Doc ID: 338461.1 SQL*Plus 10.2.0.1 Hangs, When System Uptime Is Long Period of Time
Doc ID: 4612267.8 Bug 4612267 - OCI client spins when machine uptime >= 249 days
我采取的是第三种方法,打补丁包的方式。而且据oracle官方文档说明,oracle11已经修复该问题。
下面是pache 4612267补丁包的安装及验证方法:
先停监听、dbconsole和数据库
- $ lsnrctl stop
 - $ emctl stop dbconsole
 - $ sqlplus / as sysdba
 - SQL> shutdown immediate
 
注意:dbconsole是在已经装了Oracle EM的情况下要停止,如果未安装则无需干涉。
安装patch
- $ mkdir $ORACLE_BASE/patches
 - $ cd $ORACLE_BASE/patches
 - $ rz (SecureCRT里上传 p4612267_10201_LINUX.zip 文件, 其它上传方式也可以)
 - $ unzip p4612267_10201_LINUX.zip
 - $ cd 4612267/
 - $ $ORACLE_HOME/OPatch/opatch apply
 - Invoking OPatch 10.2.0.1.0
 - ...
 - Please shutdown Oracle instances running out of this ORACLE_HOME on the local system.
 - (Oracle Home = '/u01/app/oracle/product/10.2.0/db_1')
 - Is the local system ready for patching?
 - Do you want to proceed? [y|n]
 - y (此处输入y)
 - User Responded with: Y
 - ...
 - ApplySession adding interim patch '4612267' to inventory
 - The local system has been patched and can be restarted.
 - OPatch succeeded.
 
验证patch
- $ $ORACLE_HOME/OPatch/opatch lsinventory
 - Invoking OPatch 10.2.0.1.0
 - Oracle interim Patch Installer version 10.2.0.1.0
 - Copyright (c) 2005, Oracle Corporation. All rights reserved..
 - Oracle Home : /u01/app/oracle/product/10.2.0/db_1
 - Central Inventory : /u01/app/oracle/oraInventory
 - from : /u01/app/oracle/product/10.2.0/db_1/oraInst.loc
 - OPatch version : 10.2.0.1.0
 - OUI version : 10.2.0.1.0
 - OUI location : /u01/app/oracle/product/10.2.0/db_1/oui
 - Log file location : /u01/app/oracle/product/10.2.0/db_1/cfgtoollogs/opatch/opatch-2009_Jan_13_11-06-27-HKT_Tue.log
 - Lsinventory Output file location : /u01/app/oracle/product/10.2.0/db_1/cfgtoollogs/opatch/lsinv/lsinventory-2009_Jan_13_11-06-27-HKT_Tue.txt
 - --------------------------------------------------------------------------------
 - Installed Top-level Products (2):
 - Oracle Database
 - 10g 10.2.0.1.0
 - Oracle Database 10g Products 10.2.0.1.0
 - There are 2 products installed in this Oracle Home.
 - Interim patches (1) :
 - Patch 4612267 : applied on Tue Jan 13 11:05:10 HKT 2009
 - Created on 5 Oct 2005, 13:48:00 hrs US/Pacific
 - Bugs fixed:
 - 4612267
 - --------------------------------------------------------------------------------
 - OPatch succeeded.
 
启动数据库、监听和dbconsole
- $ sqlplus / as sysdba
 - SQL> startup
 - $ lsnrctl start
 - $ emctl start dbconsole
 
如果有需要,还可以删除patch,删除前先停库
- $ cd $ORACLE_BASE/patches/4612267
 - $ $ORACLE_HOME/OPatch/opatch rollback -id 4612267
 - Invoking OPatch 10.2.0.1.0
 - ...
 - Please shutdown Oracle instances running out of this ORACLE_HOME on the local system.
 - (Oracle Home = '/u01/app/oracle/product/10.2.0/db_1')
 - Is the local system ready for patching?
 - Do you want to proceed? [y|n]
 - y (此处输入y)
 - User Responded with: Y
 - ...
 - RollbackSession removing interim patch '4612267' from inventory
 - The local system has been patched and can be restarted.
 - OPatch succeeded.
 
此时再执行上面的验证patch命令就会发现该patch已经删除了。
注:
- Running STRACE tool shows:
 - $ strace /oracle/home/bin/sqlplus -V 2>&1 |less
 - ......
 - old_mmap(NULL, 385024, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x41794000
 - gettimeofday({1122996561, 411035}, NULL) = 0
 - access("/usr/local/UD/conf/sqlnet.ora", F_OK) = -1 ENOENT (No such file or directory)
 - access("/usr/local/UD/lib/oracle/network/admin/sqlnet.ora", F_OK) = -1 ENOENT (No such file or directory)
 - access("/usr/local/UD/conf/sqlnet.ora", F_OK) = -1 ENOENT (No such file or directory)
 - access("/usr/local/UD/lib/oracle/network/admin/sqlnet.ora", F_OK) = -1 ENOENT (No such file or directory)
 - fcntl64(-1218313656, F_SETFD, FD_CLOEXEC) = -1 EBADF (Bad file descriptor)
 - It is looping on the times() function.--死循环中
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 - times(NULL) = -1825782405
 
关于Linux下sqlplus没有反应的问题就介绍到这里了,希望通过本次的介绍能够带给您一些收获!
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