Comment 20 for bug 1113301

Basically I had to revert the whole process and waited for an hour to drop the triggers which were hanging on metadata lock.

It took an hour just to drop the triggers.

This is really bad as it is the second time that we have encountered an outage using this tool for alter. I had tested this in my test server with no issue, but in Production in a high transaction env. this tool doesn't work at least with percona 5.5 version.

I am using percona 5.5.27.

I can provide you the command that I used.

Thanks.