Import wiredtiger: 46eb0217d46b98e7631fc463791f9e16c08ae198 from branch mongodb-4.4

ref: 48cbc0a231..46eb0217d4
for: 4.4.0-rc12

WT-6475       Create statistic to track number of cursor prev calls as a result of globally visible tombstones
WT-6477       Fix silent failures about run directory never created in format.sh

11 files changed, 352 insertions, 315 deletions

diff --git a/src/third_party/wiredtiger/dist/stat_data.py b/src/third_party/wiredtiger/dist/stat_data.py
index 494e862c987..0a00d74797d 100644
--- a/src/third_party/wiredtiger/dist/stat_data.py
+++ b/src/third_party/wiredtiger/dist/stat_data.py
@@ -369,6 +369,8 @@ connection_stats = [
     CursorStat('cursor_next_skip_lt_100', 'cursor next calls that skip less than 100 entries'),
     CursorStat('cursor_next_skip_total', 'Total number of entries skipped by cursor next calls'),
     CursorStat('cursor_prev', 'cursor prev calls'),
+    CursorStat('cursor_prev_hs_tombstone', 'cursor prev calls that skip due to a globally visible history store tombstone'),
+    CursorStat('cursor_prev_hs_tombstone_rts', 'cursor prev calls that skip due to a globally visible history store tombstone in rollback to stable'),
     CursorStat('cursor_prev_skip_ge_100', 'cursor prev calls that skip greater than or equal to 100 entries'),
     CursorStat('cursor_prev_skip_lt_100', 'cursor prev calls that skip less than 100 entries'),
     CursorStat('cursor_prev_skip_total', 'Total number of entries skipped by cursor prev calls'),
diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data
index 67ebc04ac39..3c6640654e9 100644
--- a/src/third_party/wiredtiger/import.data
+++ b/src/third_party/wiredtiger/import.data
@@ -2,5 +2,5 @@
     "vendor": "wiredtiger",
     "github": "wiredtiger/wiredtiger.git",
     "branch": "mongodb-4.4",
-    "commit": "48cbc0a231da8005719ff1a1628aa14372e6f327"
+    "commit": "46eb0217d46b98e7631fc463791f9e16c08ae198"
 }
diff --git a/src/third_party/wiredtiger/src/history/hs.c b/src/third_party/wiredtiger/src/history/hs.c
index f133eacbeec..8c9c39e7f12 100644
--- a/src/third_party/wiredtiger/src/history/hs.c
+++ b/src/third_party/wiredtiger/src/history/hs.c
@@ -1216,8 +1216,10 @@ __wt_hs_find_upd(WT_SESSION_IMPL *session, WT_ITEM *key, const char *value_forma
          * we can skip it.
          */
         if (__wt_txn_visible_all(
-              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts))
+              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts)) {
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone);
             continue;
+        }
         /*
          * If the stop time point of a record is visible to us, we won't be able to see anything for
          * this entire key. Just jump straight to the end.
@@ -1548,8 +1550,10 @@ __hs_fixup_out_of_order_from_pos(WT_SESSION_IMPL *session, WT_CURSOR *hs_cursor,
          * we can skip it.
          */
         if (__wt_txn_visible_all(
-              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts))
+              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts)) {
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone);
             continue;
+        }
         /*
          * If we got here, we've got out-of-order updates in the history store.
          *
@@ -1666,8 +1670,10 @@ __hs_delete_key_from_pos(
          * we can skip it.
          */
         if (__wt_txn_visible_all(
-              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts))
+              session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts)) {
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone);
             continue;
+        }
         /*
          * Since we're using internal functions to modify the row structure, we need to manually set
          * the comparison to an exact match.
diff --git a/src/third_party/wiredtiger/src/include/stat.h b/src/third_party/wiredtiger/src/include/stat.h
index ca249170b10..ee0e4778457 100644
--- a/src/third_party/wiredtiger/src/include/stat.h
+++ b/src/third_party/wiredtiger/src/include/stat.h
@@ -499,6 +499,8 @@ struct __wt_connection_stats {
     int64_t cursor_next_skip_lt_100;
     int64_t cursor_restart;
     int64_t cursor_prev;
+    int64_t cursor_prev_hs_tombstone;
+    int64_t cursor_prev_hs_tombstone_rts;
     int64_t cursor_prev_skip_ge_100;
     int64_t cursor_prev_skip_lt_100;
     int64_t cursor_remove;
diff --git a/src/third_party/wiredtiger/src/include/wiredtiger.in b/src/third_party/wiredtiger/src/include/wiredtiger.in
index 72d223e66b5..b740d1966be 100644
--- a/src/third_party/wiredtiger/src/include/wiredtiger.in
+++ b/src/third_party/wiredtiger/src/include/wiredtiger.in
@@ -5425,627 +5425,637 @@ extern int wiredtiger_extension_terminate(WT_CONNECTION *connection);
 /*! cursor: cursor prev calls */
 #define	WT_STAT_CONN_CURSOR_PREV			1203
 /*!
+ * cursor: cursor prev calls that skip due to a globally visible history
+ * store tombstone
+ */
+#define	WT_STAT_CONN_CURSOR_PREV_HS_TOMBSTONE		1204
+/*!
+ * cursor: cursor prev calls that skip due to a globally visible history
+ * store tombstone in rollback to stable
+ */
+#define	WT_STAT_CONN_CURSOR_PREV_HS_TOMBSTONE_RTS	1205
+/*!
  * cursor: cursor prev calls that skip greater than or equal to 100
  * entries
  */
-#define	WT_STAT_CONN_CURSOR_PREV_SKIP_GE_100		1204
+#define	WT_STAT_CONN_CURSOR_PREV_SKIP_GE_100		1206
 /*! cursor: cursor prev calls that skip less than 100 entries */
-#define	WT_STAT_CONN_CURSOR_PREV_SKIP_LT_100		1205
+#define	WT_STAT_CONN_CURSOR_PREV_SKIP_LT_100		1207
 /*! cursor: cursor remove calls */
-#define	WT_STAT_CONN_CURSOR_REMOVE			1206
+#define	WT_STAT_CONN_CURSOR_REMOVE			1208
 /*! cursor: cursor remove key bytes removed */
-#define	WT_STAT_CONN_CURSOR_REMOVE_BYTES		1207
+#define	WT_STAT_CONN_CURSOR_REMOVE_BYTES		1209
 /*! cursor: cursor reserve calls */
-#define	WT_STAT_CONN_CURSOR_RESERVE			1208
+#define	WT_STAT_CONN_CURSOR_RESERVE			1210
 /*! cursor: cursor reset calls */
-#define	WT_STAT_CONN_CURSOR_RESET			1209
+#define	WT_STAT_CONN_CURSOR_RESET			1211
 /*! cursor: cursor search calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH			1210
+#define	WT_STAT_CONN_CURSOR_SEARCH			1212
 /*! cursor: cursor search history store calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH_HS			1211
+#define	WT_STAT_CONN_CURSOR_SEARCH_HS			1213
 /*! cursor: cursor search near calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1212
+#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1214
 /*! cursor: cursor sweep buckets */
-#define	WT_STAT_CONN_CURSOR_SWEEP_BUCKETS		1213
+#define	WT_STAT_CONN_CURSOR_SWEEP_BUCKETS		1215
 /*! cursor: cursor sweep cursors closed */
-#define	WT_STAT_CONN_CURSOR_SWEEP_CLOSED		1214
+#define	WT_STAT_CONN_CURSOR_SWEEP_CLOSED		1216
 /*! cursor: cursor sweep cursors examined */
-#define	WT_STAT_CONN_CURSOR_SWEEP_EXAMINED		1215
+#define	WT_STAT_CONN_CURSOR_SWEEP_EXAMINED		1217
 /*! cursor: cursor sweeps */
-#define	WT_STAT_CONN_CURSOR_SWEEP			1216
+#define	WT_STAT_CONN_CURSOR_SWEEP			1218
 /*! cursor: cursor truncate calls */
-#define	WT_STAT_CONN_CURSOR_TRUNCATE			1217
+#define	WT_STAT_CONN_CURSOR_TRUNCATE			1219
 /*! cursor: cursor update calls */
-#define	WT_STAT_CONN_CURSOR_UPDATE			1218
+#define	WT_STAT_CONN_CURSOR_UPDATE			1220
 /*! cursor: cursor update key and value bytes */
-#define	WT_STAT_CONN_CURSOR_UPDATE_BYTES		1219
+#define	WT_STAT_CONN_CURSOR_UPDATE_BYTES		1221
 /*! cursor: cursor update value size change */
-#define	WT_STAT_CONN_CURSOR_UPDATE_BYTES_CHANGED	1220
+#define	WT_STAT_CONN_CURSOR_UPDATE_BYTES_CHANGED	1222
 /*! cursor: cursors reused from cache */
-#define	WT_STAT_CONN_CURSOR_REOPEN			1221
+#define	WT_STAT_CONN_CURSOR_REOPEN			1223
 /*! cursor: open cursor count */
-#define	WT_STAT_CONN_CURSOR_OPEN_COUNT			1222
+#define	WT_STAT_CONN_CURSOR_OPEN_COUNT			1224
 /*! data-handle: connection data handle size */
-#define	WT_STAT_CONN_DH_CONN_HANDLE_SIZE		1223
+#define	WT_STAT_CONN_DH_CONN_HANDLE_SIZE		1225
 /*! data-handle: connection data handles currently active */
-#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1224
+#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1226
 /*! data-handle: connection sweep candidate became referenced */
-#define	WT_STAT_CONN_DH_SWEEP_REF			1225
+#define	WT_STAT_CONN_DH_SWEEP_REF			1227
 /*! data-handle: connection sweep dhandles closed */
-#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1226
+#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1228
 /*! data-handle: connection sweep dhandles removed from hash list */
-#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1227
+#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1229
 /*! data-handle: connection sweep time-of-death sets */
-#define	WT_STAT_CONN_DH_SWEEP_TOD			1228
+#define	WT_STAT_CONN_DH_SWEEP_TOD			1230
 /*! data-handle: connection sweeps */
-#define	WT_STAT_CONN_DH_SWEEPS				1229
+#define	WT_STAT_CONN_DH_SWEEPS				1231
 /*! data-handle: session dhandles swept */
-#define	WT_STAT_CONN_DH_SESSION_HANDLES			1230
+#define	WT_STAT_CONN_DH_SESSION_HANDLES			1232
 /*! data-handle: session sweep attempts */
-#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1231
+#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1233
 /*! history: history pages added for eviction during garbage collection */
-#define	WT_STAT_CONN_HS_GC_PAGES_EVICT			1232
+#define	WT_STAT_CONN_HS_GC_PAGES_EVICT			1234
 /*! history: history pages removed for garbage collection */
-#define	WT_STAT_CONN_HS_GC_PAGES_REMOVED		1233
+#define	WT_STAT_CONN_HS_GC_PAGES_REMOVED		1235
 /*! history: history pages visited for garbage collection */
-#define	WT_STAT_CONN_HS_GC_PAGES_VISITED		1234
+#define	WT_STAT_CONN_HS_GC_PAGES_VISITED		1236
 /*! lock: checkpoint lock acquisitions */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1235
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1237
 /*! lock: checkpoint lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1236
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1238
 /*! lock: checkpoint lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1237
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1239
 /*! lock: dhandle lock application thread time waiting (usecs) */
-#define	WT_STAT_CONN_LOCK_DHANDLE_WAIT_APPLICATION	1238
+#define	WT_STAT_CONN_LOCK_DHANDLE_WAIT_APPLICATION	1240
 /*! lock: dhandle lock internal thread time waiting (usecs) */
-#define	WT_STAT_CONN_LOCK_DHANDLE_WAIT_INTERNAL		1239
+#define	WT_STAT_CONN_LOCK_DHANDLE_WAIT_INTERNAL		1241
 /*! lock: dhandle read lock acquisitions */
-#define	WT_STAT_CONN_LOCK_DHANDLE_READ_COUNT		1240
+#define	WT_STAT_CONN_LOCK_DHANDLE_READ_COUNT		1242
 /*! lock: dhandle write lock acquisitions */
-#define	WT_STAT_CONN_LOCK_DHANDLE_WRITE_COUNT		1241
+#define	WT_STAT_CONN_LOCK_DHANDLE_WRITE_COUNT		1243
 /*!
  * lock: durable timestamp queue lock application thread time waiting
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WAIT_APPLICATION	1242
+#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WAIT_APPLICATION	1244
 /*!
  * lock: durable timestamp queue lock internal thread time waiting
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WAIT_INTERNAL	1243
+#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WAIT_INTERNAL	1245
 /*! lock: durable timestamp queue read lock acquisitions */
-#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_READ_COUNT	1244
+#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_READ_COUNT	1246
 /*! lock: durable timestamp queue write lock acquisitions */
-#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WRITE_COUNT	1245
+#define	WT_STAT_CONN_LOCK_DURABLE_TIMESTAMP_WRITE_COUNT	1247
 /*! lock: metadata lock acquisitions */
-#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1246
+#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1248
 /*! lock: metadata lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1247
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1249
 /*! lock: metadata lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1248
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1250
 /*!
  * lock: read timestamp queue lock application thread time waiting
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WAIT_APPLICATION	1249
+#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WAIT_APPLICATION	1251
 /*! lock: read timestamp queue lock internal thread time waiting (usecs) */
-#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WAIT_INTERNAL	1250
+#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WAIT_INTERNAL	1252
 /*! lock: read timestamp queue read lock acquisitions */
-#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_READ_COUNT	1251
+#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_READ_COUNT	1253
 /*! lock: read timestamp queue write lock acquisitions */
-#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WRITE_COUNT	1252
+#define	WT_STAT_CONN_LOCK_READ_TIMESTAMP_WRITE_COUNT	1254
 /*! lock: schema lock acquisitions */
-#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1253
+#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1255
 /*! lock: schema lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1254
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1256
 /*! lock: schema lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1255
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1257
 /*!
  * lock: table lock application thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1256
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1258
 /*!
  * lock: table lock internal thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1257
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1259
 /*! lock: table read lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TABLE_READ_COUNT		1258
+#define	WT_STAT_CONN_LOCK_TABLE_READ_COUNT		1260
 /*! lock: table write lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TABLE_WRITE_COUNT		1259
+#define	WT_STAT_CONN_LOCK_TABLE_WRITE_COUNT		1261
 /*! lock: txn global lock application thread time waiting (usecs) */
-#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WAIT_APPLICATION	1260
+#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WAIT_APPLICATION	1262
 /*! lock: txn global lock internal thread time waiting (usecs) */
-#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WAIT_INTERNAL	1261
+#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WAIT_INTERNAL	1263
 /*! lock: txn global read lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_READ_COUNT		1262
+#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_READ_COUNT		1264
 /*! lock: txn global write lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WRITE_COUNT	1263
+#define	WT_STAT_CONN_LOCK_TXN_GLOBAL_WRITE_COUNT	1265
 /*! log: busy returns attempting to switch slots */
-#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1264
+#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1266
 /*! log: force archive time sleeping (usecs) */
-#define	WT_STAT_CONN_LOG_FORCE_ARCHIVE_SLEEP		1265
+#define	WT_STAT_CONN_LOG_FORCE_ARCHIVE_SLEEP		1267
 /*! log: log bytes of payload data */
-#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1266
+#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1268
 /*! log: log bytes written */
-#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1267
+#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1269
 /*! log: log files manually zero-filled */
-#define	WT_STAT_CONN_LOG_ZERO_FILLS			1268
+#define	WT_STAT_CONN_LOG_ZERO_FILLS			1270
 /*! log: log flush operations */
-#define	WT_STAT_CONN_LOG_FLUSH				1269
+#define	WT_STAT_CONN_LOG_FLUSH				1271
 /*! log: log force write operations */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE			1270
+#define	WT_STAT_CONN_LOG_FORCE_WRITE			1272
 /*! log: log force write operations skipped */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1271
+#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1273
 /*! log: log records compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1272
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1274
 /*! log: log records not compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1273
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1275
 /*! log: log records too small to compress */
-#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1274
+#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1276
 /*! log: log release advances write LSN */
-#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1275
+#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1277
 /*! log: log scan operations */
-#define	WT_STAT_CONN_LOG_SCANS				1276
+#define	WT_STAT_CONN_LOG_SCANS				1278
 /*! log: log scan records requiring two reads */
-#define	WT_STAT_CONN_LOG_SCAN_REREADS			1277
+#define	WT_STAT_CONN_LOG_SCAN_REREADS			1279
 /*! log: log server thread advances write LSN */
-#define	WT_STAT_CONN_LOG_WRITE_LSN			1278
+#define	WT_STAT_CONN_LOG_WRITE_LSN			1280
 /*! log: log server thread write LSN walk skipped */
-#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1279
+#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1281
 /*! log: log sync operations */
-#define	WT_STAT_CONN_LOG_SYNC				1280
+#define	WT_STAT_CONN_LOG_SYNC				1282
 /*! log: log sync time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DURATION			1281
+#define	WT_STAT_CONN_LOG_SYNC_DURATION			1283
 /*! log: log sync_dir operations */
-#define	WT_STAT_CONN_LOG_SYNC_DIR			1282
+#define	WT_STAT_CONN_LOG_SYNC_DIR			1284
 /*! log: log sync_dir time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1283
+#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1285
 /*! log: log write operations */
-#define	WT_STAT_CONN_LOG_WRITES				1284
+#define	WT_STAT_CONN_LOG_WRITES				1286
 /*! log: logging bytes consolidated */
-#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1285
+#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1287
 /*! log: maximum log file size */
-#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1286
+#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1288
 /*! log: number of pre-allocated log files to create */
-#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1287
+#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1289
 /*! log: pre-allocated log files not ready and missed */
-#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1288
+#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1290
 /*! log: pre-allocated log files prepared */
-#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1289
+#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1291
 /*! log: pre-allocated log files used */
-#define	WT_STAT_CONN_LOG_PREALLOC_USED			1290
+#define	WT_STAT_CONN_LOG_PREALLOC_USED			1292
 /*! log: records processed by log scan */
-#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1291
+#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1293
 /*! log: slot close lost race */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSE_RACE		1292
+#define	WT_STAT_CONN_LOG_SLOT_CLOSE_RACE		1294
 /*! log: slot close unbuffered waits */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSE_UNBUF		1293
+#define	WT_STAT_CONN_LOG_SLOT_CLOSE_UNBUF		1295
 /*! log: slot closures */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1294
+#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1296
 /*! log: slot join atomic update races */
-#define	WT_STAT_CONN_LOG_SLOT_RACES			1295
+#define	WT_STAT_CONN_LOG_SLOT_RACES			1297
 /*! log: slot join calls atomic updates raced */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_RACE		1296
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_RACE		1298
 /*! log: slot join calls did not yield */
-#define	WT_STAT_CONN_LOG_SLOT_IMMEDIATE			1297
+#define	WT_STAT_CONN_LOG_SLOT_IMMEDIATE			1299
 /*! log: slot join calls found active slot closed */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_CLOSE		1298
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_CLOSE		1300
 /*! log: slot join calls slept */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_SLEEP		1299
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_SLEEP		1301
 /*! log: slot join calls yielded */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD			1300
+#define	WT_STAT_CONN_LOG_SLOT_YIELD			1302
 /*! log: slot join found active slot closed */
-#define	WT_STAT_CONN_LOG_SLOT_ACTIVE_CLOSED		1301
+#define	WT_STAT_CONN_LOG_SLOT_ACTIVE_CLOSED		1303
 /*! log: slot joins yield time (usecs) */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_DURATION		1302
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_DURATION		1304
 /*! log: slot transitions unable to find free slot */
-#define	WT_STAT_CONN_LOG_SLOT_NO_FREE_SLOTS		1303
+#define	WT_STAT_CONN_LOG_SLOT_NO_FREE_SLOTS		1305
 /*! log: slot unbuffered writes */
-#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1304
+#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1306
 /*! log: total in-memory size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1305
+#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1307
 /*! log: total log buffer size */
-#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1306
+#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1308
 /*! log: total size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1307
+#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1309
 /*! log: written slots coalesced */
-#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1308
+#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1310
 /*! log: yields waiting for previous log file close */
-#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1309
+#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1311
 /*! perf: file system read latency histogram (bucket 1) - 10-49ms */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT50	1310
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT50	1312
 /*! perf: file system read latency histogram (bucket 2) - 50-99ms */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT100	1311
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT100	1313
 /*! perf: file system read latency histogram (bucket 3) - 100-249ms */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT250	1312
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT250	1314
 /*! perf: file system read latency histogram (bucket 4) - 250-499ms */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT500	1313
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT500	1315
 /*! perf: file system read latency histogram (bucket 5) - 500-999ms */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT1000	1314
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_LT1000	1316
 /*! perf: file system read latency histogram (bucket 6) - 1000ms+ */
-#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_GT1000	1315
+#define	WT_STAT_CONN_PERF_HIST_FSREAD_LATENCY_GT1000	1317
 /*! perf: file system write latency histogram (bucket 1) - 10-49ms */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT50	1316
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT50	1318
 /*! perf: file system write latency histogram (bucket 2) - 50-99ms */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT100	1317
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT100	1319
 /*! perf: file system write latency histogram (bucket 3) - 100-249ms */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT250	1318
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT250	1320
 /*! perf: file system write latency histogram (bucket 4) - 250-499ms */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT500	1319
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT500	1321
 /*! perf: file system write latency histogram (bucket 5) - 500-999ms */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT1000	1320
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_LT1000	1322
 /*! perf: file system write latency histogram (bucket 6) - 1000ms+ */
-#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_GT1000	1321
+#define	WT_STAT_CONN_PERF_HIST_FSWRITE_LATENCY_GT1000	1323
 /*! perf: operation read latency histogram (bucket 1) - 100-249us */
-#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT250	1322
+#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT250	1324
 /*! perf: operation read latency histogram (bucket 2) - 250-499us */
-#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT500	1323
+#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT500	1325
 /*! perf: operation read latency histogram (bucket 3) - 500-999us */
-#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT1000	1324
+#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT1000	1326
 /*! perf: operation read latency histogram (bucket 4) - 1000-9999us */
-#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT10000	1325
+#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_LT10000	1327
 /*! perf: operation read latency histogram (bucket 5) - 10000us+ */
-#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_GT10000	1326
+#define	WT_STAT_CONN_PERF_HIST_OPREAD_LATENCY_GT10000	1328
 /*! perf: operation write latency histogram (bucket 1) - 100-249us */
-#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT250	1327
+#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT250	1329
 /*! perf: operation write latency histogram (bucket 2) - 250-499us */
-#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT500	1328
+#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT500	1330
 /*! perf: operation write latency histogram (bucket 3) - 500-999us */
-#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT1000	1329
+#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT1000	1331
 /*! perf: operation write latency histogram (bucket 4) - 1000-9999us */
-#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT10000	1330
+#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_LT10000	1332
 /*! perf: operation write latency histogram (bucket 5) - 10000us+ */
-#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_GT10000	1331
+#define	WT_STAT_CONN_PERF_HIST_OPWRITE_LATENCY_GT10000	1333
 /*! reconciliation: approximate byte size of timestamps in pages written */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_BYTES_TS		1332
+#define	WT_STAT_CONN_REC_TIME_WINDOW_BYTES_TS		1334
 /*!
  * reconciliation: approximate byte size of transaction IDs in pages
  * written
  */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_BYTES_TXN		1333
+#define	WT_STAT_CONN_REC_TIME_WINDOW_BYTES_TXN		1335
 /*! reconciliation: fast-path pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1334
+#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1336
 /*! reconciliation: maximum seconds spent in a reconciliation call */
-#define	WT_STAT_CONN_REC_MAXIMUM_SECONDS		1335
+#define	WT_STAT_CONN_REC_MAXIMUM_SECONDS		1337
 /*! reconciliation: page reconciliation calls */
-#define	WT_STAT_CONN_REC_PAGES				1336
+#define	WT_STAT_CONN_REC_PAGES				1338
 /*! reconciliation: page reconciliation calls for eviction */
-#define	WT_STAT_CONN_REC_PAGES_EVICTION			1337
+#define	WT_STAT_CONN_REC_PAGES_EVICTION			1339
 /*!
  * reconciliation: page reconciliation calls that resulted in values with
  * prepared transaction metadata
  */
-#define	WT_STAT_CONN_REC_PAGES_WITH_PREPARE		1338
+#define	WT_STAT_CONN_REC_PAGES_WITH_PREPARE		1340
 /*!
  * reconciliation: page reconciliation calls that resulted in values with
  * timestamps
  */
-#define	WT_STAT_CONN_REC_PAGES_WITH_TS			1339
+#define	WT_STAT_CONN_REC_PAGES_WITH_TS			1341
 /*!
  * reconciliation: page reconciliation calls that resulted in values with
  * transaction ids
  */
-#define	WT_STAT_CONN_REC_PAGES_WITH_TXN			1340
+#define	WT_STAT_CONN_REC_PAGES_WITH_TXN			1342
 /*! reconciliation: pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE			1341
+#define	WT_STAT_CONN_REC_PAGE_DELETE			1343
 /*!
  * reconciliation: pages written including an aggregated newest start
  * durable timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_START_DURABLE_TS	1342
+#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_START_DURABLE_TS	1344
 /*!
  * reconciliation: pages written including an aggregated newest stop
  * durable timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_DURABLE_TS	1343
+#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_DURABLE_TS	1345
 /*!
  * reconciliation: pages written including an aggregated newest stop
  * timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_TS	1344
+#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_TS	1346
 /*!
  * reconciliation: pages written including an aggregated newest stop
  * transaction ID
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_TXN	1345
+#define	WT_STAT_CONN_REC_TIME_AGGR_NEWEST_STOP_TXN	1347
 /*!
  * reconciliation: pages written including an aggregated oldest start
  * timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_OLDEST_START_TS	1346
+#define	WT_STAT_CONN_REC_TIME_AGGR_OLDEST_START_TS	1348
 /*!
  * reconciliation: pages written including an aggregated oldest start
  * transaction ID
  */
-#define	WT_STAT_CONN_REC_TIME_AGGR_OLDEST_START_TXN	1347
+#define	WT_STAT_CONN_REC_TIME_AGGR_OLDEST_START_TXN	1349
 /*! reconciliation: pages written including an aggregated prepare */
-#define	WT_STAT_CONN_REC_TIME_AGGR_PREPARED		1348
+#define	WT_STAT_CONN_REC_TIME_AGGR_PREPARED		1350
 /*! reconciliation: pages written including at least one prepare state */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_PREPARED	1349
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_PREPARED	1351
 /*!
  * reconciliation: pages written including at least one start durable
  * timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_DURABLE_START_TS	1350
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_DURABLE_START_TS	1352
 /*! reconciliation: pages written including at least one start timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_START_TS	1351
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_START_TS	1353
 /*!
  * reconciliation: pages written including at least one start transaction
  * ID
  */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_START_TXN	1352
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_START_TXN	1354
 /*!
  * reconciliation: pages written including at least one stop durable
  * timestamp
  */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_DURABLE_STOP_TS	1353
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_DURABLE_STOP_TS	1355
 /*! reconciliation: pages written including at least one stop timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_STOP_TS	1354
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_STOP_TS	1356
 /*!
  * reconciliation: pages written including at least one stop transaction
  * ID
  */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_STOP_TXN	1355
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PAGES_STOP_TXN	1357
 /*! reconciliation: records written including a prepare state */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_PREPARED		1356
+#define	WT_STAT_CONN_REC_TIME_WINDOW_PREPARED		1358
 /*! reconciliation: records written including a start durable timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_DURABLE_START_TS	1357
+#define	WT_STAT_CONN_REC_TIME_WINDOW_DURABLE_START_TS	1359
 /*! reconciliation: records written including a start timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_START_TS		1358
+#define	WT_STAT_CONN_REC_TIME_WINDOW_START_TS		1360
 /*! reconciliation: records written including a start transaction ID */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_START_TXN		1359
+#define	WT_STAT_CONN_REC_TIME_WINDOW_START_TXN		1361
 /*! reconciliation: records written including a stop durable timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_DURABLE_STOP_TS	1360
+#define	WT_STAT_CONN_REC_TIME_WINDOW_DURABLE_STOP_TS	1362
 /*! reconciliation: records written including a stop timestamp */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_STOP_TS		1361
+#define	WT_STAT_CONN_REC_TIME_WINDOW_STOP_TS		1363
 /*! reconciliation: records written including a stop transaction ID */
-#define	WT_STAT_CONN_REC_TIME_WINDOW_STOP_TXN		1362
+#define	WT_STAT_CONN_REC_TIME_WINDOW_STOP_TXN		1364
 /*! reconciliation: split bytes currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1363
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1365
 /*! reconciliation: split objects currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1364
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1366
 /*! session: open session count */
-#define	WT_STAT_CONN_SESSION_OPEN			1365
+#define	WT_STAT_CONN_SESSION_OPEN			1367
 /*! session: session query timestamp calls */
-#define	WT_STAT_CONN_SESSION_QUERY_TS			1366
+#define	WT_STAT_CONN_SESSION_QUERY_TS			1368
 /*! session: table alter failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_FAIL		1367
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_FAIL		1369
 /*! session: table alter successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SUCCESS	1368
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SUCCESS	1370
 /*! session: table alter unchanged and skipped */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SKIP		1369
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SKIP		1371
 /*! session: table compact failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1370
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1372
 /*! session: table compact successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1371
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1373
 /*! session: table create failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1372
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1374
 /*! session: table create successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1373
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1375
 /*! session: table drop failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1374
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1376
 /*! session: table drop successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1375
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1377
 /*! session: table import failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_IMPORT_FAIL		1376
+#define	WT_STAT_CONN_SESSION_TABLE_IMPORT_FAIL		1378
 /*! session: table import successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_IMPORT_SUCCESS	1377
+#define	WT_STAT_CONN_SESSION_TABLE_IMPORT_SUCCESS	1379
 /*! session: table rebalance failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1378
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1380
 /*! session: table rebalance successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1379
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1381
 /*! session: table rename failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1380
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1382
 /*! session: table rename successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1381
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1383
 /*! session: table salvage failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1382
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1384
 /*! session: table salvage successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1383
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1385
 /*! session: table truncate failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1384
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1386
 /*! session: table truncate successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1385
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1387
 /*! session: table verify failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1386
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1388
 /*! session: table verify successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1387
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1389
 /*! thread-state: active filesystem fsync calls */
-#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1388
+#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1390
 /*! thread-state: active filesystem read calls */
-#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1389
+#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1391
 /*! thread-state: active filesystem write calls */
-#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1390
+#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1392
 /*! thread-yield: application thread time evicting (usecs) */
-#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1391
+#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1393
 /*! thread-yield: application thread time waiting for cache (usecs) */
-#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1392
+#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1394
 /*!
  * thread-yield: connection close blocked waiting for transaction state
  * stabilization
  */
-#define	WT_STAT_CONN_TXN_RELEASE_BLOCKED		1393
+#define	WT_STAT_CONN_TXN_RELEASE_BLOCKED		1395
 /*! thread-yield: connection close yielded for lsm manager shutdown */
-#define	WT_STAT_CONN_CONN_CLOSE_BLOCKED_LSM		1394
+#define	WT_STAT_CONN_CONN_CLOSE_BLOCKED_LSM		1396
 /*! thread-yield: data handle lock yielded */
-#define	WT_STAT_CONN_DHANDLE_LOCK_BLOCKED		1395
+#define	WT_STAT_CONN_DHANDLE_LOCK_BLOCKED		1397
 /*!
  * thread-yield: get reference for page index and slot time sleeping
  * (usecs)
  */
-#define	WT_STAT_CONN_PAGE_INDEX_SLOT_REF_BLOCKED	1396
+#define	WT_STAT_CONN_PAGE_INDEX_SLOT_REF_BLOCKED	1398
 /*! thread-yield: log server sync yielded for log write */
-#define	WT_STAT_CONN_LOG_SERVER_SYNC_BLOCKED		1397
+#define	WT_STAT_CONN_LOG_SERVER_SYNC_BLOCKED		1399
 /*! thread-yield: page access yielded due to prepare state change */
-#define	WT_STAT_CONN_PREPARED_TRANSITION_BLOCKED_PAGE	1398
+#define	WT_STAT_CONN_PREPARED_TRANSITION_BLOCKED_PAGE	1400
 /*! thread-yield: page acquire busy blocked */
-#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1399
+#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1401
 /*! thread-yield: page acquire eviction blocked */
-#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1400
+#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1402
 /*! thread-yield: page acquire locked blocked */
-#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1401
+#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1403
 /*! thread-yield: page acquire read blocked */
-#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1402
+#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1404
 /*! thread-yield: page acquire time sleeping (usecs) */
-#define	WT_STAT_CONN_PAGE_SLEEP				1403
+#define	WT_STAT_CONN_PAGE_SLEEP				1405
 /*!
  * thread-yield: page delete rollback time sleeping for state change
  * (usecs)
  */
-#define	WT_STAT_CONN_PAGE_DEL_ROLLBACK_BLOCKED		1404
+#define	WT_STAT_CONN_PAGE_DEL_ROLLBACK_BLOCKED		1406
 /*! thread-yield: page reconciliation yielded due to child modification */
-#define	WT_STAT_CONN_CHILD_MODIFY_BLOCKED_PAGE		1405
+#define	WT_STAT_CONN_CHILD_MODIFY_BLOCKED_PAGE		1407
 /*! transaction: Number of prepared updates */
-#define	WT_STAT_CONN_TXN_PREPARED_UPDATES_COUNT		1406
+#define	WT_STAT_CONN_TXN_PREPARED_UPDATES_COUNT		1408
 /*! transaction: durable timestamp queue entries walked */
-#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_WALKED		1407
+#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_WALKED		1409
 /*! transaction: durable timestamp queue insert to empty */
-#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_EMPTY		1408
+#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_EMPTY		1410
 /*! transaction: durable timestamp queue inserts to head */
-#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_HEAD		1409
+#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_HEAD		1411
 /*! transaction: durable timestamp queue inserts total */
-#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_INSERTS		1410
+#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_INSERTS		1412
 /*! transaction: durable timestamp queue length */
-#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_LEN		1411
+#define	WT_STAT_CONN_TXN_DURABLE_QUEUE_LEN		1413
 /*! transaction: prepared transactions */
-#define	WT_STAT_CONN_TXN_PREPARE			1412
+#define	WT_STAT_CONN_TXN_PREPARE			1414
 /*! transaction: prepared transactions committed */
-#define	WT_STAT_CONN_TXN_PREPARE_COMMIT			1413
+#define	WT_STAT_CONN_TXN_PREPARE_COMMIT			1415
 /*! transaction: prepared transactions currently active */
-#define	WT_STAT_CONN_TXN_PREPARE_ACTIVE			1414
+#define	WT_STAT_CONN_TXN_PREPARE_ACTIVE			1416
 /*! transaction: prepared transactions rolled back */
-#define	WT_STAT_CONN_TXN_PREPARE_ROLLBACK		1415
+#define	WT_STAT_CONN_TXN_PREPARE_ROLLBACK		1417
 /*! transaction: query timestamp calls */
-#define	WT_STAT_CONN_TXN_QUERY_TS			1416
+#define	WT_STAT_CONN_TXN_QUERY_TS			1418
 /*! transaction: read timestamp queue entries walked */
-#define	WT_STAT_CONN_TXN_READ_QUEUE_WALKED		1417
+#define	WT_STAT_CONN_TXN_READ_QUEUE_WALKED		1419
 /*! transaction: read timestamp queue insert to empty */
-#define	WT_STAT_CONN_TXN_READ_QUEUE_EMPTY		1418
+#define	WT_STAT_CONN_TXN_READ_QUEUE_EMPTY		1420
 /*! transaction: read timestamp queue inserts to head */
-#define	WT_STAT_CONN_TXN_READ_QUEUE_HEAD		1419
+#define	WT_STAT_CONN_TXN_READ_QUEUE_HEAD		1421
 /*! transaction: read timestamp queue inserts total */
-#define	WT_STAT_CONN_TXN_READ_QUEUE_INSERTS		1420
+#define	WT_STAT_CONN_TXN_READ_QUEUE_INSERTS		1422
 /*! transaction: read timestamp queue length */
-#define	WT_STAT_CONN_TXN_READ_QUEUE_LEN			1421
+#define	WT_STAT_CONN_TXN_READ_QUEUE_LEN			1423
 /*! transaction: rollback to stable calls */
-#define	WT_STAT_CONN_TXN_RTS				1422
+#define	WT_STAT_CONN_TXN_RTS				1424
 /*!
  * transaction: rollback to stable hs records with stop timestamps older
  * than newer records
  */
-#define	WT_STAT_CONN_TXN_RTS_HS_STOP_OLDER_THAN_NEWER_START	1423
+#define	WT_STAT_CONN_TXN_RTS_HS_STOP_OLDER_THAN_NEWER_START	1425
 /*! transaction: rollback to stable keys removed */
-#define	WT_STAT_CONN_TXN_RTS_KEYS_REMOVED		1424
+#define	WT_STAT_CONN_TXN_RTS_KEYS_REMOVED		1426
 /*! transaction: rollback to stable keys restored */
-#define	WT_STAT_CONN_TXN_RTS_KEYS_RESTORED		1425
+#define	WT_STAT_CONN_TXN_RTS_KEYS_RESTORED		1427
 /*! transaction: rollback to stable pages visited */
-#define	WT_STAT_CONN_TXN_RTS_PAGES_VISITED		1426
+#define	WT_STAT_CONN_TXN_RTS_PAGES_VISITED		1428
 /*! transaction: rollback to stable restored tombstones from history store */
-#define	WT_STAT_CONN_TXN_RTS_HS_RESTORE_TOMBSTONES	1427
+#define	WT_STAT_CONN_TXN_RTS_HS_RESTORE_TOMBSTONES	1429
 /*! transaction: rollback to stable sweeping history store keys */
-#define	WT_STAT_CONN_TXN_RTS_SWEEP_HS_KEYS		1428
+#define	WT_STAT_CONN_TXN_RTS_SWEEP_HS_KEYS		1430
 /*! transaction: rollback to stable tree walk skipping pages */
-#define	WT_STAT_CONN_TXN_RTS_TREE_WALK_SKIP_PAGES	1429
+#define	WT_STAT_CONN_TXN_RTS_TREE_WALK_SKIP_PAGES	1431
 /*! transaction: rollback to stable updates aborted */
-#define	WT_STAT_CONN_TXN_RTS_UPD_ABORTED		1430
+#define	WT_STAT_CONN_TXN_RTS_UPD_ABORTED		1432
 /*! transaction: rollback to stable updates removed from history store */
-#define	WT_STAT_CONN_TXN_RTS_HS_REMOVED			1431
+#define	WT_STAT_CONN_TXN_RTS_HS_REMOVED			1433
 /*! transaction: set timestamp calls */
-#define	WT_STAT_CONN_TXN_SET_TS				1432
+#define	WT_STAT_CONN_TXN_SET_TS				1434
 /*! transaction: set timestamp durable calls */
-#define	WT_STAT_CONN_TXN_SET_TS_DURABLE			1433
+#define	WT_STAT_CONN_TXN_SET_TS_DURABLE			1435
 /*! transaction: set timestamp durable updates */
-#define	WT_STAT_CONN_TXN_SET_TS_DURABLE_UPD		1434
+#define	WT_STAT_CONN_TXN_SET_TS_DURABLE_UPD		1436
 /*! transaction: set timestamp oldest calls */
-#define	WT_STAT_CONN_TXN_SET_TS_OLDEST			1435
+#define	WT_STAT_CONN_TXN_SET_TS_OLDEST			1437
 /*! transaction: set timestamp oldest updates */
-#define	WT_STAT_CONN_TXN_SET_TS_OLDEST_UPD		1436
+#define	WT_STAT_CONN_TXN_SET_TS_OLDEST_UPD		1438
 /*! transaction: set timestamp stable calls */
-#define	WT_STAT_CONN_TXN_SET_TS_STABLE			1437
+#define	WT_STAT_CONN_TXN_SET_TS_STABLE			1439
 /*! transaction: set timestamp stable updates */
-#define	WT_STAT_CONN_TXN_SET_TS_STABLE_UPD		1438
+#define	WT_STAT_CONN_TXN_SET_TS_STABLE_UPD		1440
 /*! transaction: transaction begins */
-#define	WT_STAT_CONN_TXN_BEGIN				1439
+#define	WT_STAT_CONN_TXN_BEGIN				1441
 /*! transaction: transaction checkpoint currently running */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1440
+#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1442
 /*! transaction: transaction checkpoint generation */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1441
+#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1443
 /*!
  * transaction: transaction checkpoint history store file duration
  * (usecs)
  */
-#define	WT_STAT_CONN_TXN_HS_CKPT_DURATION		1442
+#define	WT_STAT_CONN_TXN_HS_CKPT_DURATION		1444
 /*! transaction: transaction checkpoint max time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1443
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1445
 /*! transaction: transaction checkpoint min time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1444
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1446
 /*! transaction: transaction checkpoint most recent time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1445
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1447
 /*! transaction: transaction checkpoint prepare currently running */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_RUNNING	1446
+#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_RUNNING	1448
 /*! transaction: transaction checkpoint prepare max time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_MAX		1447
+#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_MAX		1449
 /*! transaction: transaction checkpoint prepare min time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_MIN		1448
+#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_MIN		1450
 /*! transaction: transaction checkpoint prepare most recent time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_RECENT		1449
+#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_RECENT		1451
 /*! transaction: transaction checkpoint prepare total time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_TOTAL		1450
+#define	WT_STAT_CONN_TXN_CHECKPOINT_PREP_TOTAL		1452
 /*! transaction: transaction checkpoint scrub dirty target */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1451
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1453
 /*! transaction: transaction checkpoint scrub time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1452
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1454
 /*! transaction: transaction checkpoint total time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1453
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1455
 /*! transaction: transaction checkpoints */
-#define	WT_STAT_CONN_TXN_CHECKPOINT			1454
+#define	WT_STAT_CONN_TXN_CHECKPOINT			1456
 /*!
  * transaction: transaction checkpoints skipped because database was
  * clean
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1455
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1457
 /*! transaction: transaction failures due to history store */
-#define	WT_STAT_CONN_TXN_FAIL_CACHE			1456
+#define	WT_STAT_CONN_TXN_FAIL_CACHE			1458
 /*!
  * transaction: transaction fsync calls for checkpoint after allocating
  * the transaction ID
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1457
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1459
 /*!
  * transaction: transaction fsync duration for checkpoint after
  * allocating the transaction ID (usecs)
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1458
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1460
 /*! transaction: transaction range of IDs currently pinned */
-#define	WT_STAT_CONN_TXN_PINNED_RANGE			1459
+#define	WT_STAT_CONN_TXN_PINNED_RANGE			1461
 /*! transaction: transaction range of IDs currently pinned by a checkpoint */
-#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1460
+#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1462
 /*! transaction: transaction range of timestamps currently pinned */
-#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP		1461
+#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP		1463
 /*! transaction: transaction range of timestamps pinned by a checkpoint */
-#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_CHECKPOINT	1462
+#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_CHECKPOINT	1464
 /*!
  * transaction: transaction range of timestamps pinned by the oldest
  * active read timestamp
  */
-#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_READER	1463
+#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_READER	1465
 /*!
  * transaction: transaction range of timestamps pinned by the oldest
  * timestamp
  */
-#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_OLDEST	1464
+#define	WT_STAT_CONN_TXN_PINNED_TIMESTAMP_OLDEST	1466
 /*! transaction: transaction read timestamp of the oldest active reader */
-#define	WT_STAT_CONN_TXN_TIMESTAMP_OLDEST_ACTIVE_READ	1465
+#define	WT_STAT_CONN_TXN_TIMESTAMP_OLDEST_ACTIVE_READ	1467
 /*! transaction: transaction sync calls */
-#define	WT_STAT_CONN_TXN_SYNC				1466
+#define	WT_STAT_CONN_TXN_SYNC				1468
 /*! transaction: transactions committed */
-#define	WT_STAT_CONN_TXN_COMMIT				1467
+#define	WT_STAT_CONN_TXN_COMMIT				1469
 /*! transaction: transactions rolled back */
-#define	WT_STAT_CONN_TXN_ROLLBACK			1468
+#define	WT_STAT_CONN_TXN_ROLLBACK			1470
 /*! transaction: update conflicts */
-#define	WT_STAT_CONN_TXN_UPDATE_CONFLICT		1469
+#define	WT_STAT_CONN_TXN_UPDATE_CONFLICT		1471
 
 /*!
  * @}
diff --git a/src/third_party/wiredtiger/src/support/stat.c b/src/third_party/wiredtiger/src/support/stat.c
index 6ba51a94cab..dc0a07d1242 100644
--- a/src/third_party/wiredtiger/src/support/stat.c
+++ b/src/third_party/wiredtiger/src/support/stat.c
@@ -905,6 +905,9 @@ static const char *const __stats_connection_desc[] = {
   "cursor: cursor next calls that skip greater than or equal to 100 entries",
   "cursor: cursor next calls that skip less than 100 entries", "cursor: cursor operation restarted",
   "cursor: cursor prev calls",
+  "cursor: cursor prev calls that skip due to a globally visible history store tombstone",
+  "cursor: cursor prev calls that skip due to a globally visible history store tombstone in "
+  "rollback to stable",
   "cursor: cursor prev calls that skip greater than or equal to 100 entries",
   "cursor: cursor prev calls that skip less than 100 entries", "cursor: cursor remove calls",
   "cursor: cursor remove key bytes removed", "cursor: cursor reserve calls",
@@ -1349,6 +1352,8 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats)
     stats->cursor_next_skip_lt_100 = 0;
     stats->cursor_restart = 0;
     stats->cursor_prev = 0;
+    stats->cursor_prev_hs_tombstone = 0;
+    stats->cursor_prev_hs_tombstone_rts = 0;
     stats->cursor_prev_skip_ge_100 = 0;
     stats->cursor_prev_skip_lt_100 = 0;
     stats->cursor_remove = 0;
@@ -1855,6 +1860,8 @@ __wt_stat_connection_aggregate(WT_CONNECTION_STATS **from, WT_CONNECTION_STATS *
     to->cursor_next_skip_lt_100 += WT_STAT_READ(from, cursor_next_skip_lt_100);
     to->cursor_restart += WT_STAT_READ(from, cursor_restart);
     to->cursor_prev += WT_STAT_READ(from, cursor_prev);
+    to->cursor_prev_hs_tombstone += WT_STAT_READ(from, cursor_prev_hs_tombstone);
+    to->cursor_prev_hs_tombstone_rts += WT_STAT_READ(from, cursor_prev_hs_tombstone_rts);
     to->cursor_prev_skip_ge_100 += WT_STAT_READ(from, cursor_prev_skip_ge_100);
     to->cursor_prev_skip_lt_100 += WT_STAT_READ(from, cursor_prev_skip_lt_100);
     to->cursor_remove += WT_STAT_READ(from, cursor_remove);
diff --git a/src/third_party/wiredtiger/src/txn/txn.c b/src/third_party/wiredtiger/src/txn/txn.c
index 571ec8fd6bc..ac0fc58fab1 100644
--- a/src/third_party/wiredtiger/src/txn/txn.c
+++ b/src/third_party/wiredtiger/src/txn/txn.c
@@ -680,6 +680,8 @@ __txn_append_hs_record(WT_SESSION_IMPL *session, WT_CURSOR *hs_cursor, WT_ITEM *
         if (!__wt_txn_visible_all(
               session, hs_cbt->upd_value->tw.stop_txn, hs_cbt->upd_value->tw.durable_stop_ts))
             break;
+        else
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone);
     }
 
     /* We walked off the top of the history store. */
diff --git a/src/third_party/wiredtiger/src/txn/txn_rollback_to_stable.c b/src/third_party/wiredtiger/src/txn/txn_rollback_to_stable.c
index 55a455c96f7..852aaad1169 100644
--- a/src/third_party/wiredtiger/src/txn/txn_rollback_to_stable.c
+++ b/src/third_party/wiredtiger/src/txn/txn_rollback_to_stable.c
@@ -232,8 +232,10 @@ __rollback_row_ondisk_fixup_key(WT_SESSION_IMPL *session, WT_PAGE *page, WT_ROW
          * we can skip it.
          */
         if (__wt_txn_visible_all(
-              session, cbt->upd_value->tw.stop_txn, cbt->upd_value->tw.durable_stop_ts))
+              session, cbt->upd_value->tw.stop_txn, cbt->upd_value->tw.durable_stop_ts)) {
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone_rts);
             continue;
+        }
 
         /*
          * As part of the history store search, we never get an exact match based on our search
@@ -1030,8 +1032,10 @@ __rollback_to_stable_btree_hs_truncate(WT_SESSION_IMPL *session, uint32_t btree_
          * we can skip it.
          */
         if (__wt_txn_visible_all(
-              session, cbt->upd_value->tw.stop_txn, cbt->upd_value->tw.durable_stop_ts))
+              session, cbt->upd_value->tw.stop_txn, cbt->upd_value->tw.durable_stop_ts)) {
+            WT_STAT_CONN_INCR(session, cursor_prev_hs_tombstone_rts);
             continue;
+        }
 
         /* Set this comparison as exact match of the search for later use. */
         cbt->compare = 0;
diff --git a/src/third_party/wiredtiger/test/format/format.sh b/src/third_party/wiredtiger/test/format/format.sh
index e607fd1e942..5cffe3a2274 100755
--- a/src/third_party/wiredtiger/test/format/format.sh
+++ b/src/third_party/wiredtiger/test/format/format.sh
@@ -17,7 +17,7 @@ onintr()
 trap 'onintr' 2
 
 usage() {
-	echo "usage: $0 [-aEFSv] [-b format-binary] [-c config] [-e env-var]"
+	echo "usage: $0 [-aEFRSv] [-b format-binary] [-c config] [-e env-var]"
 	echo "    [-h home] [-j parallel-jobs] [-n total-jobs] [-t minutes] [format-configuration]"
 	echo
 	echo "    -a           abort/recovery testing (defaults to off)"
@@ -225,7 +225,7 @@ skip_known_errors()
 	# skip_error_list is a list of errors to skip. Each array entry can have multiple signatures
 	# for finger-grained matching. For example:
 	#
-	#	err_1=("heap-buffer-overflow" "__split_parent")
+	#       err_1=("heap-buffer-overflow" "__split_parent")
 	skip_error_list=( err_1[@] )
 
 	# Loop through the skip list and search in the log file.
@@ -250,6 +250,7 @@ skip_known_errors()
 # $1 directory name
 report_failure()
 {
+	# Note the directory may not yet exist, only the log file.
 	dir=$1
 	log="$dir.log"
 
@@ -257,45 +258,54 @@ report_failure()
 	#skip_known_errors $log
 	#skip_ret=$?
 
-	echo "$name: failure status reported" > $dir/$status
 	failure=$(($failure + 1))
 
 	# Forcibly quit if first-failure configured.
 	[[ $first_failure -ne 0 ]] && force_quit=1
 
 	echo "$name: job in $dir failed"
-	echo "$name: $dir log:"
 	sed 's/^/    /' < $log
+
+	# Note the directory may not yet exist, only the log file. If the directory doesn't exist,
+	# quit, we don't have any way to track that we've already reported this failure and it's
+	# not worth the effort to try and figure one out, in all likelihood the configuration is
+	# invalid.
+	[[ -d "$dir" ]] || {
+	    echo "$name: $dir does not exist, $name unable to continue"
+	    force_quit=1
+	    return
+	}
 	echo "$name: $dir/CONFIG:"
 	sed 's/^/    /' < $dir/CONFIG
+
+	echo "$name: failure status reported" > $dir/$status
 }
 
 # Resolve/cleanup completed jobs.
 resolve()
 {
 	running=0
-	list=$(ls $home | grep '^RUNDIR.[0-9]*$')
+	list=$(ls $home | grep '^RUNDIR.[0-9]*.log')
 	for i in $list; do
-		dir="$home/$i"
-		log="$dir.log"
-
-		# Skip directories that aren't ours.
-		[[ -f "$log" ]] || continue
+		# Note the directory may not yet exist, only the log file.
+		dir="$home/${i%.*}"
+		log="$home/$i"
 
 		# Skip failures we've already reported.
 		[[ -f "$dir/$status" ]] && continue
 
-		# Get the process ID, ignore any jobs that aren't yet running.
-		pid=`grep -E 'process.*running' $log | awk '{print $3}'`
-		[[ "$pid" =~ ^[1-9][0-9]*$ ]] || continue
-
 		# Leave any process waiting for a gdb attach running, but report it as a failure.
 		grep -E 'waiting for debugger' $log > /dev/null && {
 			report_failure $dir
 			continue
 		}
 
-		# If the job is still running, ignore it unless we're forcibly quitting.
+		# Get the process ID. There is a window where the PID might not yet be written, in
+		# which case we ignore the log file. If the job is still running, ignore it unless
+		# we're forcibly quitting. If it's not still running, wait for it and get an exit
+		# status.
+		pid=`awk '/process.*running/{print $3}' $log`
+		[[ "$pid" =~ ^[1-9][0-9]*$ ]] || continue
 		kill -s 0 $pid > /dev/null 2>&1 && {
 			[[ $force_quit -eq 0 ]] && {
 				running=$((running + 1))
@@ -311,8 +321,6 @@ resolve()
 			verbose "$name: job in $dir killed"
 			continue
 		}
-
-		# Wait for the job and get an exit status.
 		wait $pid
 		eret=$?
 
@@ -410,7 +418,6 @@ resolve()
 		# a problem in this script.
 		echo "$name: job in $dir exited with status $eret for an unknown reason"
 		echo "$name: reporting job in $dir as a failure"
-		echo "$name: $name needs to be updated"
 		report_failure $dir
 	done
 	return 0
@@ -449,7 +456,7 @@ format()
 
 	# Disassociate the command from the shell script so we can exit and let the command
 	# continue to run.
-	# Run format in its own session so child processes are in their own process gorups
+	# Run format in its own session so child processes are in their own process groups
 	# and we can individually terminate (and clean up) running jobs and their children.
 	nohup setsid $cmd > $log 2>&1 &
 
@@ -479,30 +486,23 @@ while :; do
 		}
 	}
 
-	# Start more jobs.
-	while :; do
-		# Check if we're only running the smoke-tests and we're done.
-		[[ $smoke_test -ne 0 ]] && [[ $smoke_next -ge ${#smoke_list[@]} ]] && quit=1
+	# Check if we're only running the smoke-tests and we're done.
+	[[ $smoke_test -ne 0 ]] && [[ $smoke_next -ge ${#smoke_list[@]} ]] && quit=1
 	
-		# Check if the total number of jobs has been reached.
-		[[ $total_jobs -ne 0 ]] && [[ $count_jobs -ge $total_jobs ]] && quit=1
-
-		# Check if less than 60 seconds left on any timer. The goal is to avoid killing
-		# jobs that haven't yet configured signal handlers, because we rely on handler
-		# output to determine their final status.
-		[[ $seconds -ne 0 ]] && [[ $(($seconds - $elapsed)) -lt 60 ]] && quit=1
+	# Check if the total number of jobs has been reached.
+	[[ $total_jobs -ne 0 ]] && [[ $count_jobs -ge $total_jobs ]] && quit=1
 
-		# Don't create more jobs if we're quitting for any reason.
-		[[ $force_quit -ne 0 ]] || [[ $quit -ne 0 ]] && break;
+	# Check if less than 60 seconds left on any timer. The goal is to avoid killing jobs that
+	# haven't yet configured signal handlers, because we rely on handler output to determine
+	# their final status.
+	[[ $seconds -ne 0 ]] && [[ $(($seconds - $elapsed)) -lt 60 ]] && quit=1
 
-		# Check if the maximum number of jobs in parallel has been reached.
-		[[ $running -ge $parallel_jobs ]] && break
+	# Start another job if we're not quitting for any reason and the maximum number of jobs
+	# in parallel has not yet been reached.
+	[[ $force_quit -eq 0 ]] && [[ $quit -eq 0 ]] && [[ $running -lt $parallel_jobs ]] && {
 		running=$(($running + 1))
-
-		# Start another job, but don't pound on the system.
 		format
-		sleep 2
-	done
+	}
 
 	# Clean up and update status.
 	success_save=$success
@@ -514,8 +514,10 @@ while :; do
 	# Quit if we're done and there aren't any jobs left to wait for.
 	[[ $quit -ne 0 ]] || [[ $force_quit -ne 0 ]] && [[ $running -eq 0 ]] && break
 
-	# Wait for awhile, unless we're killing everything or there are jobs to start.
-	[[ $force_quit -eq 0 ]] && [[ $running -ge $parallel_jobs ]] && sleep 10
+	# Wait for awhile, unless we're killing everything or there are jobs to start. Always wait
+	# for a short period so we don't pound the system creating new jobs.
+	[[ $force_quit -eq 0 ]] && [[ $running -ge $parallel_jobs ]] && sleep 8
+	sleep 2
 done
 
 echo "$name: $success successful jobs, $failure failed jobs"
diff --git a/src/third_party/wiredtiger/test/format/t.c b/src/third_party/wiredtiger/test/format/t.c
index 47748d3efd2..11d3d48db32 100644
--- a/src/third_party/wiredtiger/test/format/t.c
+++ b/src/third_party/wiredtiger/test/format/t.c
@@ -159,6 +159,10 @@ main(int argc, char *argv[])
 
     (void)testutil_set_progname(argv);
 
+    /* The monitoring program looks for this line in the log file, push it out quickly. */
+    printf("%s: process %" PRIdMAX " running\n", progname, (intmax_t)getpid());
+    fflush(stdout);
+
     format_process_env();
 
     /* Set values from the command line. */
@@ -256,8 +260,6 @@ main(int argc, char *argv[])
 
     testutil_check(__wt_thread_str(g.tidbuf, sizeof(g.tidbuf)));
 
-    printf("%s: process %" PRIdMAX " running\n", progname, (intmax_t)getpid());
-    fflush(stdout);
     while (++g.run_cnt <= g.c_runs || g.c_runs == 0) {
         __wt_seconds(NULL, &start);
         track("starting up", 0ULL, NULL);
diff --git a/src/third_party/wiredtiger/test/utility/misc.c b/src/third_party/wiredtiger/test/utility/misc.c
index ed54bed74b3..299df0a5118 100644
--- a/src/third_party/wiredtiger/test/utility/misc.c
+++ b/src/third_party/wiredtiger/test/utility/misc.c
@@ -61,7 +61,7 @@ testutil_die(int e, const char *fmt, ...)
     if (e != 0)
         fprintf(stderr, ": %s", wiredtiger_strerror(e));
     fprintf(stderr, "\n");
-    fprintf(stderr, "process aborting\n");
+    fprintf(stderr, "%s: process aborting\n", progname);
 
     abort();
 }