From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: Mon, 4 Apr 2016 21:12:12 +0000 (-0300)
Subject: Display WAL pointer in rm_redo error callback
X-Git-Tag: REL9_6_BETA1~287
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=890614d2b35bd20468352043870edc7f24a7b8ec;p=postgresql

Display WAL pointer in rm_redo error callback

This makes it easier to identify the source of a recovery problem
in case of a bug or data corruption.
---

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index 06cefe2efe..00140ba8f4 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -10847,7 +10847,11 @@ rm_redo_error_callback(void *arg)
 	initStringInfo(&buf);
 	xlog_outdesc(&buf, record);
 
-	errcontext("xlog redo %s", buf.data);
+	/* translator: %s is an XLog record description */
+	errcontext("xlog redo at %X/%X for %s",
+			   (uint32) (record->ReadRecPtr >> 32),
+			   (uint32) record->ReadRecPtr,
+			   buf.data);
 
 	pfree(buf.data);
 }