From: Hiromichi Watari Date: November 22 2011 2:34pm Subject: Re: Concurrent table access from InnoDB List-Archive: http://lists.mysql.com/internals/38399 Message-Id: <1321972484.82431.YahooMailNeo@web121513.mail.ne1.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hi Steve, Mark, Stewart and Rick Thank you for your feedback. From what you are saying, is it fair to say that InnoDB serializes table access among competing requests (perhaps to simplify design to support transactions) while MyISAM allow concurrent access ? My experiment results seem to be confirming the assumptions. Thank you all for your help. Hiromichi