seafile.log报下面错误：
[10/13/2016 03:51:10 PM] …/common/seaf-db.c(621): Error exec prep stmt: mysql_stmt_execute failed: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation ‘like’.
[10/13/2016 03:51:10 PM] share-mgr.c(476): Failed to get shared sub dirs from db.
ccnet.log报下面错误：
[10/13/16 15:29:38] …/common/ccnet-db.c(536): Error execute prep stmt: mysql_stmt_execute failed: Incorrect string value: ‘\xE4\xBA\xA7\xE5\x93\x81…’ for column ‘group_name’ at row 1.
[10/13/16 15:29:43] …/common/session.c(398): Accepted a local client
上传大文件貌似中途会卡住不动，然后就发现seafile报这些错误。不清楚什么原因。
系统安装是centos7，mysql 5.7，seafile-6的服务器版本。