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问题：mysqlhotcopy备份报错
/usr/local/mysql/bin/mysqlhotcopy -u root -p  --addtodest --noindices --flushlog -q qeedoo /tmp/bak
install_driver(mysql) failed: Can't locate DBD/mysql.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8 .) at (eval 7) line 3.
Perhaps the DBD::mysql perl module hasn't been fully installed,
or perhaps the capitalisation of 'mysql' isn't right.
Available drivers: DBM, ExampleP, File, Proxy, Sponge.
解决
下载：
tar zxvf DBD--3.0008.tar.gz
cd /tmp/DBD-mysql-3.0008
perl Makefile.PL --mysql_config=/usr/local/mysql/bin/mysql_config
make
make install
 
最后编译安装完之后 发现还是报错：
install_driver(mysql) failed: Can't load '/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/DBD/mysql/mysql.so' for module DBD::mysql: libmysqlclient.so.16: cannot open shared object file: No such file or directory at /usr/lib/perl5/5.8.8/i386-linux-thread-multi/DynaLoader.pm line 230.
 at (eval 7) line 3
Compilation failed in require at (eval 7) line 3.
Perhaps a required shared library or dll isn't installed where expected
 at /usr/bin/mysqlhotcopy line 177
 
是因为tar安装mysql后的路径配置的有问题
vi /etc/ld.so.conf
把mysql的这个库文件路径添加进去
 
echo "/usr/local/mysql/lib/mysql" >> /etc/ld.so.conf
ldconfig

再执行mysqlhotcopy的时候，一切正常。

 
 
有一台服务出现如下问题：
以下问题待遇查看资料，先记下另外这个问题：
Can't locate DBI.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8 .) at /usr/local/mysql/bin/mysqlhotcopy line 8.
BEGIN failed--compilation aborted at /usr/local/mysql/bin/mysqlhotcopy line 8.
原因：系统没有按安装DBI组件。

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