Lamp 安装 MySQL 遇到的问题汇总

内容简介：Lamp 安装 MySQL 遇到的问题汇总

1: 缺少 libaio 包， libaio是 Linux 下的一个异步非阻塞方式读写文件的接口。

[root@12 MySQL]# ./scripts/mysql_install_db --user=mysql --datadir=/data/mysql
Installing MySQL system tables...
./bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

解决办法：安装↓

Solution：yum -y install libaio-devel

2: 缺少 openssl 包

[root@12 mysql]# ./scripts/mysql_install_db --user=mysql
Installing MySQL system tables...
./bin/mysqld: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

解决办法：先检查所有所有的 $PATH 目录是否包含libssl*链接库,如果有，可以做软链接改变名字，如果没有，安装↓

Solution：yum -y install openssl-devel

[root@12 mysql]# cd /usr/lib
[root@12 lib]# ls libssl.so
libssl.so
[root@12 lib]# ln -s libssl.so libssl.so.6
[root@12 lib]#ln -s libcrypto.so libcrypto.so.6

3：在安装过程中,检查配置文件的错误

[root@12 mysql]# ./scripts/mysql_install_db --defaults-file=my_wresp.cnf --user=mysql
Installing MySQL system tables...
131213 17:13:28 [ERROR] WSREP: Query cache is not supported (size=67108864 type=1)
131213 17:13:28 [ERROR] Aborting

解决办法： 测试 过程中就按照错误信息修改即可，至于原因，事后再行计较。

Solution：删除所有query cache相关的配置选项

[root@12 ]# cat /etc/my.cnf | grep queyr_cache
query_cache_size = 64M
query_cache_limit = 2M

4：与上面相同处理

131213 18:03:21 [ERROR] WSREP: Parallel applying (wsrep_slave_threads > 1) requires innodb_autoinc_lock_mode = 2.
131213 18:03:21 [ERROR] Aborting
add in my_wsrep.cnf：innodb_autoinc_lock_mode=2

5：缺少相关的模块

131215 0:15:31 [Note] WSREP: Requesting state transfer: success, donor: 0
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors
WSREP_SST: [ERROR] Error while getting data from donor node: exit codes: 0 2 (20131215 00:15:34.320)
WSREP_SST: [ERROR] Cleanup after exit with status:32 (20131215 00:15:34.332)
WSREP_SST: [INFO] Removing the sst_in_progress file (20131215 00:15:34.349)
131215 0:15:34 [ERROR] WSREP: Process completed with error: wsrep_sst_xtrabackup --role 'joiner' --address '192.168.1.46' --auth '' --datadir '/usr/local/mysql/var/' --defaults-file '/etc/my.cnf' --parent '2714': 32 (Broken pipe)
131215 0:15:34 [ERROR] WSREP: Failed to read uuid:seqno from joiner script.
131215 0:15:34 [ERROR] WSREP: SST failed: 32 (Broken pipe)
131215 0:15:34 [ERROR] Aborting

Solution : 

#yum install perl-Time-HiRes
#yum -y install perl-DBD-MySQL.x86_64
#yum -y install libaio*

6. 端口被占用

WSREP_SST: [INFO] Evaluating socat -u TCP-LISTEN:4444,reuseaddr stdio | tar xfi - --recursive-unlink -h; RC=( ${PIPESTATUS[@]} ) (20140128 15:35:07.478)
2014/01/28 15:35:07 socat[10521.3077941584] E bind(11, {AF=2 0.0.0.0:4444}, 16): Address already in use
tar: This does not look like a tar archive
tar: Exiting with failure status due to previous errors

解决办法，找到占用端口的程序，杀掉（比较暴力，也可以换端口，但是初次安装为简单起见，暴力）

Solution：

[root@12 ~]# lsof -i :4444  
lsof: no pwd entry for UID 503  
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME  
lsof: no pwd entry for UID 503  
socat 5256 503 11u IPv4 13450 0t0 TCP *:krb524 (LISTEN)  
[root@12 ~]# kill -9 5256  
[root@12 ~]# lsof -i :4444  
[root@12 ~]# lsof -i :4444

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