在一个11.2.0.2 for Linux X86-64环境中，运行csscan工具报错。
错误信息为：
[oracle@dbserver2 ~]$ cd $ORACLE_HOME/bin [oracle@dbserver2 bin]$ csscan help=y csscan: error while loading shared libraries: libclntsh.so.11.1: cannot OPEN shared object file: No such file OR directory |
检查metalink，在文档ID 742070.1中提到，导致这个问题的原因是没有正确的设置LD_LIBRARY_PATH环境变量，将$ORACLE_HOME/lib添加到这个环境变量中可以避免错误的产生：
[oracle@dbserver2 bin]$ env|grep LD_LIB LD_LIBRARY_PATH=/etc/emc/rsa/cst/lib [oracle@dbserver2 bin]$ export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH [oracle@dbserver2 bin]$ csscan help=y CHARACTER SET Scanner v2.2 : Release 11.2.0.2.0 - Production ON Mon Jun 6 17:46:04 2011 Copyright (c) 1982, 2009, Oracle AND/OR its affiliates. ALL rights reserved. You can let Scanner prompt you FOR parameters BY entering the CSSCAN command followed BY your username/password: Example: CSSCAN \"SYSTEM/MANAGER AS SYSDBA\" Or, you can control how Scanner runs by entering the CSSCAN command followed by various parameters. To specify parameters, you use keywords: Example: CSSCAN \"SYSTEM/MANAGER AS SYSDBA\" FULL=y TOCHAR=utf8 ARRAY=1024000 PROCESS=3 Keyword Default Prompt Description ---------- ------- ------ ------------------------------------------------- USERID yes username/password FULL N yes scan entire database USER yes owner of tables to be scanned TABLE yes list of tables to scan COLUMN yes list of columns to scan EXCLUDE list of tables to exclude from scan TOCHAR yes new database character set name FROMCHAR current database character set name TONCHAR new national character set name FROMNCHAR current national character set name ARRAY 1024000 yes size of array fetch buffer PROCESS 1 yes number of concurrent scan process MAXBLOCKS split table if block size exceed MAXBLOCKS CAPTURE N capture convertible data SUPPRESS maximum number of exceptions logged for each table FEEDBACK report progress every N rows BOUNDARIES list of column size boundaries for summary report LASTRPT N generate report of the last database scan LOG scan base file name of report files PARFILE parameter file name PRESERVE N preserve existing scan results LCSD N no enable language and character set detection LCSDDATA LOSSY no define the scope of the detection HELP N show help screen (this screen) QUERY N select clause to scan subset of tables or columns ---------- ------- ------ ------------------------------------------------- Scanner terminated successfully. |
采用这个方法确实解决了问题。不过奇怪的问题是，另外一台服务器采用相同方式安装的数据库，并不存在这个问题，而且这台服务器上的LD_LIBRARY_PATH的设置与出现问题的服务器完全一致：
[oracle@dbserver1 ~]$ cd $ORACLE_HOME/bin [oracle@dbserver1 bin]$ csscan help=y CHARACTER SET Scanner v2.2 : Release 11.2.0.2.0 - Production ON Mon Sep 5 17:47:18 2011 Copyright (c) 1982, 2009, Oracle AND/OR its affiliates. ALL rights reserved. You can let Scanner prompt you FOR parameters BY entering the CSSCAN command followed BY your username/password: Example: CSSCAN \"SYSTEM/MANAGER AS SYSDBA\" Or, you can control how Scanner runs by entering the CSSCAN command followed by various parameters. To specify parameters, you use keywords: Example: CSSCAN \"SYSTEM/MANAGER AS SYSDBA\" FULL=y TOCHAR=utf8 ARRAY=1024000 PROCESS=3 Keyword Default Prompt Description ---------- ------- ------ ------------------------------------------------- USERID yes username/password FULL N yes scan entire database USER yes owner of tables to be scanned TABLE yes list of tables to scan COLUMN yes list of columns to scan EXCLUDE list of tables to exclude from scan TOCHAR yes new database character set name FROMCHAR current database character set name TONCHAR new national character set name FROMNCHAR current national character set name ARRAY 1024000 yes size of array fetch buffer PROCESS 1 yes number of concurrent scan process MAXBLOCKS split table if block size exceed MAXBLOCKS CAPTURE N capture convertible data SUPPRESS maximum number of exceptions logged for each table FEEDBACK report progress every N rows BOUNDARIES list of column size boundaries for summary report LASTRPT N generate report of the last database scan LOG scan base file name of report files PARFILE parameter file name PRESERVE N preserve existing scan results LCSD N no enable language and character set detection LCSDDATA LOSSY no define the scope of the detection HELP N show help screen (this screen) QUERY N select clause to scan subset of tables or columns ---------- ------- ------ ------------------------------------------------- Scanner terminated successfully. [oracle@dbserver1 bin]$ env|grep LD_LIB LD_LIBRARY_PATH=/etc/emc/rsa/cst/lib |
虽然metalink给出的解决方法确实有效，但是导致这个问题的原因和可能是多个方面的，至少文档没有给出为什么同样配置同样版本的两个数据库，在一个上没有问题，而另一个上运行就出现错误。