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Recursively fsync() the data directory after a crash.

author Robert Haas <rhaas@postgresql.org>

Mon, 4 May 2015 18:13:53 +0000 (14:13 -0400)

committer Robert Haas <rhaas@postgresql.org>

Mon, 4 May 2015 18:13:53 +0000 (14:13 -0400)

commit 2ce439f3379aed857517c8ce207485655000fc8e

tree 196ccf42f41939b101aa6d4587ca93c8060b51a2 tree

parent ec3d976bce7e322c29f1007d19b63b7a3a1a6ee4 commit | diff

Recursively fsync() the data directory after a crash.

Otherwise, if there's another crash, some writes from after the first
crash might make it to disk while writes from before the crash fail
to make it to disk. This could lead to data corruption.

Back-patch to all supported versions.

Abhijit Menon-Sen, reviewed by Andres Freund and slightly revised
by me.

src/backend/access/transam/xlog.c diff | blob | blame | history

src/backend/storage/file/fd.c diff | blob | blame | history

src/include/storage/fd.h diff | blob | blame | history

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