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f86a09a852
The flags trx->active_commit_ordered and trx->active_prepare got cleared in trx_init() during the fast part of commit (ie. commit_ordered()). This is too early, then the values are lost when processing reaches trx_commit_complete_for_mysql(). This caused the MDEV-232 optimization to be omitted, adding an extra fsync() at the end of commit when using the legacy binlog and causing severe performance regression. The values of trx->active_commit_ordered and trx->active_prepare must persist to the end of commit procesing, same as trx->is_registered. This is done in this patch, active_commit_ordered and active_prepare are cleared in trx_deregister_from_2pc() together with trx->is_registered in trx_deregister_from_2pc(), and asserted to be cleared when trx->is_registered is set for a following transaction. Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org> |
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