Import wiredtiger: 0efbb249a0a79f504cf3be03129973e2fbb6f428 from branch mongodb-6.2

ref: 5ade1afb83..0efbb249a0
for: 6.2.0-rc2

WT-10062 Fix checkpoint cleanup not to skip internal pages

2 files changed, 17 insertions, 5 deletions

diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data
index 3ff1ffa7eb8..ea47a5ee94d 100644
--- a/src/third_party/wiredtiger/import.data
+++ b/src/third_party/wiredtiger/import.data
@@ -1,6 +1,6 @@
 {
     "vendor": "wiredtiger",
     "github": "wiredtiger/wiredtiger.git",
-    "branch": "mongodb-master",
-    "commit": "5ade1afb8313b7eaeb7e0b14271d0f88e483bd62"
+    "branch": "mongodb-6.2",
+    "commit": "0efbb249a0a79f504cf3be03129973e2fbb6f428"
 }
diff --git a/src/third_party/wiredtiger/src/btree/bt_sync.c b/src/third_party/wiredtiger/src/btree/bt_sync.c
index abb1ee86a52..509c2f904d8 100644
--- a/src/third_party/wiredtiger/src/btree/bt_sync.c
+++ b/src/third_party/wiredtiger/src/btree/bt_sync.c
@@ -385,10 +385,22 @@ __sync_page_skip(
         return (0);
 
     /*
-     * Skip reading the pages that are normal leaf pages or don't have an aggregated durable stop
-     * timestamp.
+     * The checkpoint cleanup fast deletes the obsolete leaf page by marking it as deleted
+     * in the internal page. To achieve this,
+     *
+     * 1. Checkpoint has to read all the internal pages that have obsolete leaf pages.
+     *    To limit the reading of number of internal pages, the aggregated stop durable timestamp
+     *    is checked except when the table is logged. Logged tables do not use timestamps.
+     *
+     * 2. Obsolete leaf pages with overflow keys/values cannot be fast deleted to free
+     *    the overflow blocks. Read the page into cache and mark it dirty to remove the
+     *    overflow blocks during reconciliation.
+     *
+     * FIXME: Read internal pages from non-logged tables when the remove/truncate
+     * operation is performed using no timestamp.
      */
-    if (addr.type == WT_ADDR_LEAF_NO || addr.ta.newest_stop_durable_ts == WT_TS_NONE) {
+    if (addr.type == WT_ADDR_LEAF_NO ||
+      (!F_ISSET(S2BT(session), WT_BTREE_LOGGED) && addr.ta.newest_stop_durable_ts == WT_TS_NONE)) {
         __wt_verbose_debug2(
           session, WT_VERB_CHECKPOINT_CLEANUP, "%p: page walk skipped", (void *)ref);
         WT_STAT_CONN_DATA_INCR(session, cc_pages_walk_skipped);