From 2b7963056c19ab581a70b9ab4a60b8d59566fc16 Mon Sep 17 00:00:00 2001
From: anastasia <lubennikovaav@gmail.com>
Date: Tue, 25 May 2021 12:10:12 +0300
Subject: [PATCH] add more context for error message

---
 pageserver/src/repository/rocksdb.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pageserver/src/repository/rocksdb.rs b/pageserver/src/repository/rocksdb.rs
index 8ee0e6d119..2f75c5796c 100644
--- a/pageserver/src/repository/rocksdb.rs
+++ b/pageserver/src/repository/rocksdb.rs
@@ -565,7 +565,13 @@ impl Timeline for RocksTimeline {
                     self.put_page_image(tag, lsn, page_img.clone());
                 } else {
                     // No base image, and no WAL record. Huh?
-                    bail!("no page image or WAL record for requested page");
+                    bail!(
+                        "no page image or WAL record for requested page {} blk {} at lsn {}({})",
+                        tag.rel,
+                        tag.blknum,
+                        req_lsn,
+                        lsn
+                    );
                 }
                 // FIXME: assumes little-endian. Only used for the debugging log though
                 let page_lsn_hi =