Thread: pgsql: Fix race condition if a file is removed while pg_basebackup is r

Fix race condition if a file is removed while pg_basebackup is running.

If a relation file was removed when the server-side counterpart of
pg_basebackup was just about to open it to send it to the client, you'd
get a "could not open file" error. Fix that.

Backpatch to 9.1, this goes back to when pg_basebackup was introduced.

Branch
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REL9_1_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/14aa55df29ea69e453be4c46f8546d49365fc06b

Modified Files
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src/backend/replication/basebackup.c |   39 ++++++++++++++++++++++++++-------
1 files changed, 30 insertions(+), 9 deletions(-)