Keep CommitTs module in sync in standby and master
We allow this module to be turned off on restarts, so a restart time
check is enough to activate or deactivate the module; however, if there
is a standby replaying WAL emitted from a master which is restarted, but
the standby isn't, the state in the standby becomes inconsistent and can
easily be crashed.
Fix by activating and deactivating the module during WAL replay on
parameter change as well as on system start.
Problem reported by Fujii Masao in
http://www.postgresql.org/message-id/CAHGQGwFhJ3CnHo1CELEfay18yg_RA-XZT-7D8NuWUoYSZ90r4Q@mail.gmail.com
Author: Petr Jelínek
Branch
------
master
Details
-------
http://git.postgresql.org/pg/commitdiff/4f3924d9cd438ba4e6fd639460f8c859c65d45a3
Modified Files
--------------
src/backend/access/transam/commit_ts.c | 81 +++++++++++++++++++++++---------
src/backend/access/transam/xlog.c | 36 +++++++++++++-
src/backend/commands/vacuum.c | 2 +-
src/include/access/commit_ts.h | 4 +-
4 files changed, 99 insertions(+), 24 deletions(-)