Import wiredtiger: bf1d78126c2ff448b868f199aef22b6c528dd45d from branch mongodb-4.4

ref: 4eb9f719ee..bf1d78126c
for: 4.4.0-rc9

WT-6353       Print out failing values and value history of prealloc
WT-6375       Test to verify RTS fixes the inconsistent checkpoint data
WT-6379       Split Evergreen stress test job into multiple shorter running jobs
WT-6381       RTS to remove hs record that is appended to the update chain
WT-6382       Use history store btree when searching

1 files changed, 5 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/test/suite/test_bug019.py b/src/third_party/wiredtiger/test/suite/test_bug019.py
index a11581fbc0f..0cfcc2b13cb 100644
--- a/src/third_party/wiredtiger/test/suite/test_bug019.py
+++ b/src/third_party/wiredtiger/test/suite/test_bug019.py
@@ -57,6 +57,8 @@ class test_bug019(wttest.WiredTigerTestCase):
             if i % 500 == 0:
                 prealloc = self.get_prealloc_stat()
                 if prealloc > self.max_prealloc:
+                    self.pr("Updating max_prealloc from " + str(self.max_prealloc))
+                    self.pr("    to new prealloc " + str(prealloc))
                     self.max_prealloc = prealloc
         c.close()
 
@@ -78,6 +80,9 @@ class test_bug019(wttest.WiredTigerTestCase):
         start_prealloc = self.get_prealloc_stat()
         self.populate(self.entries)
         self.session.checkpoint()
+        if self.max_prealloc <= start_prealloc:
+            self.pr("FAILURE: max_prealloc " + str(self.max_prealloc))
+            self.pr("FAILURE: start_prealloc " + str(start_prealloc))
         self.assertTrue(self.max_prealloc > start_prealloc)
 
         # Loop, making sure pre-allocation is working and the range is moving.