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操作系统：CentOS 7.5

数据库：Oracle 11.2.0.4

sqlplus突然无法启动，报错信息如下：

Error 5 initializing SQL*Plus

NLS initialization error

初步判断是nls编码文件读取失败导致sqlplus无法启动。用strace跟踪sqlplus的执行过程：

[oracle@node3 ~]$ strace -t -e trace=file sqlplus

10:30:16 execve("/opt/app/oracle/product/11g/bin/sqlplus", ["sqlplus"], [/* 29 vars */]) = 0

10:30:16 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/tls/x86_64/libsqlplus.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib/tls/x86_64", 0x7ffd81e7e460) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/tls/libsqlplus.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib/tls", 0x7ffd81e7e460) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/x86_64/libsqlplus.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib/x86_64", 0x7ffd81e7e460) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libsqlplus.so", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libclntsh.so.11.1", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libnnz11.so", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib32/tls/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib32/tls/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib32/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib32/tls", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib32/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib32/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib32/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/opt/app/oracle/product/11g/lib32", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/tls/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/lib/tls/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/lib/tls", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/lib/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0

10:30:16 open("/usr/lib/tls/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/usr/lib/tls/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/tls/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/usr/lib/tls", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/x86_64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/usr/lib/x86_64", 0x7ffd81e7e3d0) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 stat("/usr/lib", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0

10:30:16 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libm.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib64/libm.so.6", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libnsl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libnsl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libnsl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libnsl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib64/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libaio.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libaio.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libaio.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib/libaio.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/usr/lib/libaio.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/lib64/libaio.so.1", O_RDONLY|O_CLOEXEC) = 3

10:30:16 open("/opt/app/oracle/product/11g/lib/libsqlplusic.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libociicus.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/lib/libociei.so", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

10:30:16 open("/opt/app/oracle/product/11g/nls/data/lx1boot.nlb", O_RDONLY) = 3

10:30:16 open("/opt/app/oracle/product/11g/nls/data/lx00001.nlb", O_RDONLY) = 3

10:30:16 open("/opt/app/oracle/product/11g/nls/data/lx20354.nlb", O_RDONLY) = 3

Error 5 initializing SQL*Plus

NLS initialization error

10:30:16 +++ exited with 1 +++

可看到是在读取lx20354.nlb文件候，导致sqlplus退出。查看此文件：

[oracle@node3 data]$ ll /opt/app/oracle/product/11g/nls/data/lx20354.nlb

ls: cannot access /opt/app/oracle/product/11g/nls/data/lx20354.nlb: No such file or directory

发现此文件竟然丢失了。因此可断定，是编码文件lx20354.nlb的丢失导致了sqlplus启动失败。

解决方案：

 从运行正常的同版本实例中拷贝丢失的文件并放到相应目录下即可解决问题。

“CentOS7.5启动sqlplus失败的解决方法”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注创新互联网站，小编将为大家输出更多高质量的实用文章！

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