Hello, Thank you for your comments, I will post an updated patch soon.
On Fri, Mar 17, 2017 at 6:40 AM, Robert Haas <robertmh...@gmail.com> wrote: > > > +assign_wal_segment_size(int newval, void *extra) > > Why does a PGC_INTERNAL GUC need an assign hook? I think the GUC > should only be there to expose the value; it shouldn't have > calculation logic associated with it. > The Checkpoint Segments and the UsableBytesInSegment had to be changed depending on the value of wal_segment_size set during initdb. I will figure out another way to assign these values without using this assign_hook. > + wal_segment_size = atoi(str_wal_segment_size); > > So, you're comfortable interpreting --wal-segsize=1TB or > --wal-segsize=1GB as 1? Implicitly, 1MB? > The option was intended to only accept values in MB as the original config --with-wal-segsize option, unfortunately, the patch does not throw error as in the config option when the units are specified. Error with config option --with-wal-segsize=1MB configure: error: Invalid WAL segment size. Allowed values are 1,2,4,8,16,32,64. Should we imitate this behaviour and just add a check to see if it only contains numbers? or would it be better to allow the use of the units and make appropriate code changes? -- Thank you, Beena Emerson EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company