On Fri, Jul 29, 2011 at 11:27 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Robert Haas <robertmh...@gmail.com> writes: >> On Fri, Jul 29, 2011 at 9:55 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: >>> The thing that was bizarre about the one instance in the buildfarm was >>> that the error was persistent, ie, once a session had failed all its >>> subsequent attempts to access pg_class failed too. > >> I was thinking more along the lines of a failure while processing a >> sinval message emitted by the REINDEX. The sinval message doesn't get >> fully processed and therefore we get confused about what the >> relfilenode is for pg_class. If that happened for any other relation, >> we could recover by scanning pg_class. But if it happens for pg_class >> or pg_class_oid_index, we're toast, because we can't scan them without >> knowing what relfilenode to open. > > Well, no, because the ScanPgRelation call is not failing internally. > It's performing a seqscan of pg_class and not finding a matching tuple.
SnapshotNow race? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers