From df4a056619a7e9868ec43a15e2088ff8ccf94471 Mon Sep 17 00:00:00 2001 From: Michael Paquier Date: Fri, 9 Sep 2022 10:00:40 +0900 Subject: Add more error context to RestoreBlockImage() and consume it On failure in restoring a block image, no details were provided, while it is possible to see failure with an inconsistent record state, a failure in processing decompression or a failure in decompression because a build does not support this option. RestoreBlockImage() is used in two code paths in the backend code, during recovery and when checking a page consistency after applying masking, and both places are changed to consume the error message produced by the internal routine when it returns a false status. All the error messages are reported under ERRCODE_INTERNAL_ERROR, that gets used also when attempting to access a page compressed by a method not supported by the build attempting the decompression. This is something that can happen in core when doing physical replication with primary and standby using inconsistent build options, for example. This routine is available since 2c03216d and it has never provided any context about the error happening when it failed. This change is justified even more after 57aa5b2, that introduced compression of FPWs in WAL. Reported-by: Justin Prysby Author: Michael Paquier Discussion: https://postgr.es/m/20220905002320.GD31833@telsasoft.com Backpatch-through: 15 --- src/backend/access/transam/xlogutils.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/backend/access/transam/xlogutils.c') diff --git a/src/backend/access/transam/xlogutils.c b/src/backend/access/transam/xlogutils.c index 0cda22597fe..e60951a5fcd 100644 --- a/src/backend/access/transam/xlogutils.c +++ b/src/backend/access/transam/xlogutils.c @@ -393,7 +393,9 @@ XLogReadBufferForRedoExtended(XLogReaderState *record, prefetch_buffer); page = BufferGetPage(*buf); if (!RestoreBlockImage(record, block_id, page)) - elog(ERROR, "failed to restore block image"); + ereport(ERROR, + (errcode(ERRCODE_INTERNAL_ERROR), + errmsg_internal("%s", record->errormsg_buf))); /* * The page may be uninitialized. If so, we can't set the LSN because -- cgit v1.2.3