今天因为要在 nimbula 实例上测试 Oracle Database 12c DBaas 的 IO 性能,因为 nimbula 实例不方便安装 Oracle Database 软件,就从一台已经安装了该软件的机器上copy过来一个 Oracle Home 目录,但是无论怎么设置环境变量,始终都报如下错误: export ORAC
今天因为要在 nimbula 实例上测试 Oracle Database 12c DBaas 的 IO 性能,因为 nimbula 实例不方便安装 Oracle Database 软件,就从一台已经安装了该软件的机器上copy过来一个 Oracle Home 目录,但是无论怎么设置环境变量,始终都报如下错误:
export ORACLE_HOME=/u01/app/oracle/product/12.1.0/dbhome_1
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib:/usr/local/lib:$LD_LIBRARY_PATH
-bash-4.1# orion
orion: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
在 nimbula 实例上查找 libaio.so.1 发现在拷贝的 Oracle Home 目录下,也确实存在该目录,只是没有添加到 LD_LIBRARY_PATH 中,将该路径加入变量中后
/u01/app/oracle/product/12.1.0/dbhome_1/lib/stubs/libaio.so.1
export ORACLE_HOME=/u01/app/oracle/product/12.1.0/dbhome_1
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib:/usr/local/lib:/u01/app/oracle/product/12.1.0/dbhome_1/lib/stubs:$LD_LIBRARY_PATH
可是在执行 orion 测试命令时又遇到另一个错误,提示 stubs 下的 lib 只是一个 link ,这个路径不应包含在 LD_LIBRARY_PATH 中。
于是又将该路径从变量中移除。感觉此问题可能和这里的 Oracle Home 是从其他机器拷贝而来有关。对比一下原机器和现有 nimbula 实例发现。
在 google 搜索到一个很有用的link对解决此问题有很大帮助:http://www.pipperr.de/dokuwiki/doku.php?id=dba:oracle_io_last_werkzeug_orion
在 nimbula 实例上进入 orion 所在路径然后执行 ldd 命令查看 orion 所调用的模块发现缺少两个 libaio.so1 包,而前面的find命令已经在Oracle Home/lib下已经找到该
lib包,这里只有一种可能这里所缺的libaio.so.1和上面的其他的lib包一样,可能只是一个link指向 Oracle Home/lib 下的文件。
-bash-4.1# cd $ORACLE_HOME/bin
-bash-4.1# ldd ./orion
linux-vdso.so.1 => (0x00007fffa5b96000)
libclntsh.so.12.1 => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libclntsh.so.12.1 (0x00007fbe55d1e000)
libclntshcore.so.12.1 => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libclntshcore.so.12.1 (0x00007fbe557cd000)
libcell12.so => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libcell12.so (0x00007fbe55531000)
libskgxp12.so => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libskgxp12.so (0x00007fbe55236000)
libaio.so.1 => not found
libdl.so.2 => /lib64/libdl.so.2 (0x00007fbe5502d000)
libm.so.6 => /lib64/libm.so.6 (0x00007fbe54da9000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fbe54b8b000)
libnsl.so.1 => /lib64/libnsl.so.1 (0x00007fbe54972000)
librt.so.1 => /lib64/librt.so.1 (0x00007fbe5476a000)
libc.so.6 => /lib64/libc.so.6 (0x00007fbe543d6000)
/lib64/ld-linux-x86-64.so.2 (0x00007fbe58a0e000)
libnnz12.so => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libnnz12.so (0x00007fbe53cc0000)
libons.so => /u01/app/oracle/product/12.1.0/dbhome_1/lib/libons.so (0x00007fbe53a7c000)
libaio.so.1 => not found
libaio.so.1 => not found
在拷贝 Oracle Home 的源主机上发现,果然是 nimbula 实例缺少相应的包。
-bash-3.2# hostname
slcn06cn13
-bash-3.2# find / -name libaio.so.1
/usr/lib64/libaio.so.1
/usr/lib/libaio.so.1
-bash-3.2# cd /u01/app/oracle/product/12.1.0/dbhome_1/bin
-bash-3.2# ldd orion
linux-vdso.so.1 => (0x00007fff043ff000)
libclntsh.so.12.1 => not found
libclntshcore.so.12.1 => not found
libcell12.so => not found
libskgxp12.so => not found
libaio.so.1 => /usr/lib64/libaio.so.1 (0x00007f08dd3fa000)
libdl.so.2 => /lib64/libdl.so.2 (0x000000363a800000)
libm.so.6 => /lib64/libm.so.6 (0x000000363a000000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x000000363ac00000)
libnsl.so.1 => /lib64/libnsl.so.1 (0x000000363e000000)
librt.so.1 => /lib64/librt.so.1 (0x000000363b000000)
libc.so.6 => /lib64/libc.so.6 (0x0000003639c00000)
/lib64/ld-linux-x86-64.so.2 (0x0000003639800000)
这下终于知道原因了,尝试将源主机上的 /usr/lib64/libaio.so.1 和 /usr/lib/libaio.so.1 拷贝到 nimbula 实例上对应的目录问题立即解决。
转载请注明作者出处及原文链接,否则将追究法律责任:
作者:xiangsir
原文链接:http://blog.csdn.net/xiangsir/article/details/18262689
QQ:444367417
MSN:xiangsir@hotmail.com

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