sqlplus启动失败

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。