mysql不能启动
log如下：
160921 12:33:46 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data
2016-09-21 12:33:46 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
/alidata/server/mysql/bin/mysqld: File './mysql-bin.index' not found (Errcode: 13 - Permission denied)
2016-09-21 12:33:46 8017 [ERROR] Aborting
2016-09-21 12:33:46 8017 [Note] Binlog end
2016-09-21 12:33:46 8017 [Note] /alidata/server/mysql/bin/mysqld: Shutdown complete
160921 12:33:46 mysqld_safe mysqld from pid file /usr/local/mysql/data/iZ28bd1ynmoZ.pid ended
请高手赐教，非常感谢。
