Re: [HACKERS] pg_rewind proposed scope and interface changes

2017-09-15 Thread Chris Travers
On Wed, Sep 13, 2017 at 6:28 AM, Michael Paquier wrote: > On Tue, Sep 12, 2017 at 11:52 PM, Chris Travers > wrote: > > Additionally the wal, xact, timestamp and logical directories must be > > processed in some way. > > To what does the term "logical directories" refer to? > > > * if --wal=syn

Re: [HACKERS] pg_rewind proposed scope and interface changes

2017-09-12 Thread Michael Paquier
On Tue, Sep 12, 2017 at 11:52 PM, Chris Travers wrote: > Additionally the wal, xact, timestamp and logical directories must be > processed in some way. To what does the term "logical directories" refer to? > * if --wal=sync the directories are processed the way they are today > * if --wal=cl

[HACKERS] pg_rewind proposed scope and interface changes

2017-09-12 Thread Chris Travers
Hi all; After working with pg_rewind a bit more it has become clear to me that some aspects of the ideal scope of the program are a bit unclear. This is in part because the majority of cases where you use the utility, a small amount of data loss is accepted due to the tradeoff of continuity. B