m2 codfw master db2133 crashed during this operation:
Query: 'CREATE INDEX `ix_user_user_text` ON `sockpuppet`.`user` (user_text)'
There's not much on the log apart from a mysqld segfault.
Still investigating.
@WDoranWMF @gmodena @hnowlan Please do not do any more index creations on the primary master for now.