Resolve installation yum-y Install make GCC g++ gcc-c++ libtool autoconf automake imake mysql-devel libxml2-devel expat-devel cannot connect to MySQL

To view the Mysqld.log log:

MySQL Log171210 19:38:22 [Note] Plugin ' Federated ' is disabled.171210 19:38:22 InnoDB:The InnoDB memory heap is disabled171210 19:38:22 innodb:mutexes and Rw_locks UseGCC Atomic builtins171210 19:38:22 innodb:compressed Tables UseZlib 1.2.3171210 19:38:22 InnoDB:Using Linux Native AIO171210 19:38:22 innodb:initializing buffer pool, size = 128.0M171210 19:38:22 InnoDB:completed initialization of buffer pool171210 19:38:22 Innodb:highest SupportedfileFormat is barracuda.171210 19:38:22 innodb:waiting forThe background threads to start171210 19:38:23 innodb:5.5.55 started;LogSequence Number1589339171210 19:38:23 [ERROR]/usr/libexec/mysqld:unknown variable' Default-character-set=utf8 '171210 19:38:23[ERROR] aborting171210 19:38:23 innodb:starting shutdown ... 171210 19:38:24 Innodb:shutdown completed;LogSequence Number1589339171210 19:38:24 [Note]/usr/libexec/mysqld:shutdown complete

Discovery is a coding problem:

Modify the file:

Resolve installation yum-y Install make GCC g++ gcc-c++ libtool autoconf automake imake mysql-devel libxml2-devel expat-devel cannot connect to MySQL