Hi >> One new question from me: how about replication? >> Case: primary+replica, we shut down primary and enable checksum, and >> "started streaming WAL from primary" without any issue. I have master with >> checksums, but replica without. >> Or cluster with checksums, then disable checksums on primary, but standby >> think we have checksums. > > Enabling or disabling the checksums offline on the master quite clearly > requires a rebuild of the standby, there is no other way (this is one of the > reasons for the online enabling in that patch, so I still hope we can get > that done -- but not for this version).
I mean this should be at least documented. Change system id... Maybe is reasonable >> Also we support ./configure --with-blocksize=(not equals 8)? make check on >> HEAD fails for me. If we support this - i think we need recheck BLCKSZ >> between compiled pg_checksum and used in PGDATA > > You mean if the backend and pg_checksums is built with different blocksize? > Yeah, that sounds like something which is a cheap check and should be done. Yep regards, Sergei
