根据https://blogs.oracle.com/supportingmysql/entry/remove_on_sight_thread_concurrency说的,mysql 5.6开始将丢弃三个配置文件中的参数,分别是: thread_concurrency, innodb_additional_mem_pool_size, innodb_use_sys_malloc 1) thread_concurrency这个是给旧版本的solaris用的,在新的solaris 11中已经不用了...