DB2

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Truableshooting

GUI安装：Installing DB2 file sets:.......Failure

图形安装方式运行：

# ./db2setup

启动了图形安装界面，services name 和端口使用默认值：db2icserver, 51000，最后一步安装失败，/tmp/db2setup.log 如下：

DB2 Setup log file started at: Sat 01 Mar 2008 01:43:06 AM CST CST
============================================================
Operating system information: Linux 2.6.23-gentoo.#7 PREEMPT Tue Nov 6 17:01:35 CST 2007 i686
Product to install:                        IBM DB2 Information Center
Installation type:                         Custom
Previously Installed Components:        
Selected Components:                    
Languages:                              
Target directory:                          /opt/IBM/db2/V8.1
Space required:                            0 MB
DB2 Information Center Server settings: 
Service Name:                          db2icserver
Port number:                           51000
Checking license agreement acceptance:.......Success
Installing DB2 file sets:.......Failure
ERROR:A major error occurred while installing "IBM DB2 Information Center" on 
this computer. The installation can not continue. If the problem persists 
please contact your technical service representative.
DB2 Setup log file finished at: Sat 01 Mar 2008 01:47:33 AM CST CST
============================================================ 

尚不知如何解决。

命令行安装：error: Failed dependencies:       /opt/IBM/db2/V8.1 is needed by IBM_db2deen81-8.1.0-64.i386

执行命令行安装：

# cd ./261_DOCE_LNX_3264_NLV
# ./db2_install -p DB2.DOCE

提示错误：

   IBM_db2deen81...
error: Failed dependencies:
        /opt/IBM/db2/V8.1 is needed by IBM_db2deen81-8.1.0-64.i386
The installation logfile can be found in /tmp/db2_install_log.16033.
db2_install program terminated prematurely.

这是rpm 包的依赖问题，具体原因不清楚。

临时解决方法：

573              ( rpm -ivh --nodeps ${INSTDEV?}/${pkg?}${RPMEXTN?} 2>&1; echo $? > ${TMPRC?} ) | tee -a ${DB2INSTLOG?}

服务端口冲突

如果在系统中安装了多个版本的信息中心，比如同时安装了v8 与v9，那么可能需要考虑以下问题。

信息中心v8 版本的命令行安装脚本不能自动配置服务端口，总是使用默认值51000，可能会与其它版本的信息中心引起冲突（比如在安装v8版本之前安装了v9），需要手工修改 /var/db2/v81/db2icd.conf，挑选一个未被占用的端口，这里使用51002。

## TCP/IP port for DB2 Information Center
DB2_ECLIPSEIC_PORT=51002
## Temporary workspace file location for DB2 Information Center
## Default location is DB2 install location (<DB2DIR>/doc/eclipse)
DB2_ECLIPSEIC_DATA=
## Suggested alternate location 
#DB2_ECLIPSEIC_DATA=/tmp/db2icd/workspace
DB2HELP_DIR=/opt/IBM/db2/V8.1/bin/../doc/eclipse

注意，/opt/IBM/db2/V8.1/cfg/db2ic.conf  是个类似的配置文件，但/etc/init.d/db2icd 并没有使用它，使用的是/var/db2/v81/db2icd.conf。

启动服务失败：su: error while loading shared libraries: libcrypt.so.1: cannot open shared object file: No such file or directory

启动服务，输出大量的错误信息，100秒超时后，启动失败。

# /etc/init.d/db2icd start

Initializing startup.
su: error while loading shared libraries: libcrypt.so.1: cannot open shared object file: No such file or directory
ps: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
grep: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
awk: error while loading shared libraries: libdl.so.2: cannot open shared object file: No such file or directory
grep: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
ps: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
awk: error while loading shared libraries: libdl.so.2: cannot open shared object file: No such file or directory
sleep: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
expr: error while loading shared libraries: libc.so.6: cannot open shared object file: No such file or directory
./db2icd: line 204: [: : integer expression expected
... 

此问题由daemon脚本使用的Java 虚拟机版本和内核环境参数引起。

/etc/init.d/db2icd 使用安装程序自带的Java虚拟机，版本为1.3.1。

# /opt/IBM/db2/V8.1/doc/eclipse/jre/bin/java -version

java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1)
Classic VM (build 1.3.1, J2RE 1.3.1 IBM build cxia32131-20031021 (JIT enabled: jitc))

/etc/init.d/db2icd 为Linux 环境设置了内核环境参数。

LD_ASSUME_KERNEL=2.4.19
export LD_ASSUME_KERNEL 

完成下面2个步骤可以解决问题：

1. 修改daemon脚本，更换为系统的Java虚拟机
2. 修改daemon脚本，取消内核环境参数 LD_ASSUME_KERNEL