Import wiredtiger: fb527a54117f3865aae8a25557849f1228d48205 from branch mongodb-4.4

ref: af2cb8f052..fb527a5411
for: 4.3.1

WT-4486       Number of syncs did not increase in dirty max test
WT-4977       Migrate Jenkins “wiredtiger-pull-request-clang-analyzer” job to Evergreen
WT-4980       Migrate Jenkins “wiredtiger-pull-request-python” job to Evergreen
WT-4982       Migrate Jenkins “wiredtiger-pull-request-windows” job to Evergreen
WT-5145       Fix the race condition in accessing pinned_timestamp and connection state
WT-5176       Group pull request tasks using Evergreen task tags
WT-5182       Add s_all test into Evergreen ubuntu1804 build variant
WT-5184       Add CFLAGS="-ggdb" and --enable-slient-rules to the evergreen pull request builds' configurations
WT-5187       Checkpoint error path can attempt to release a hazard pointer that isn't held
WT-5193       Revert LAS dropped table change from WT-5150

9 files changed, 163 insertions, 123 deletions

diff --git a/src/third_party/wiredtiger/import.data b/src/third_party/wiredtiger/import.data
index a92e90e2f91..f7bbc66e996 100644
--- a/src/third_party/wiredtiger/import.data
+++ b/src/third_party/wiredtiger/import.data
@@ -1,5 +1,5 @@
 {
-    "commit": "af2cb8f052184a94635c3bfc358620dd36df5828", 
+    "commit": "fb527a54117f3865aae8a25557849f1228d48205", 
     "github": "wiredtiger/wiredtiger.git", 
     "vendor": "wiredtiger", 
     "branch": "mongodb-4.4"
diff --git a/src/third_party/wiredtiger/src/btree/bt_sync.c b/src/third_party/wiredtiger/src/btree/bt_sync.c
index 6ede60b97e0..037fb5cdcb6 100644
--- a/src/third_party/wiredtiger/src/btree/bt_sync.c
+++ b/src/third_party/wiredtiger/src/btree/bt_sync.c
@@ -291,7 +291,10 @@ __wt_sync_file(WT_SESSION_IMPL *session, WT_CACHE_OP syncop)
              */
             if (!WT_PAGE_IS_INTERNAL(page) && page->read_gen == WT_READGEN_WONT_NEED &&
               !tried_eviction) {
-                WT_ERR_BUSY_OK(__wt_page_release_evict(session, walk, 0));
+                ret = __wt_page_release_evict(session, walk, 0);
+                walk = NULL;
+                WT_ERR_BUSY_OK(ret);
+
                 walk = prev;
                 prev = NULL;
                 tried_eviction = true;
diff --git a/src/third_party/wiredtiger/src/cache/cache_las.c b/src/third_party/wiredtiger/src/cache/cache_las.c
index 5f4b4d20c9d..dc30150d8a0 100644
--- a/src/third_party/wiredtiger/src/cache/cache_las.c
+++ b/src/third_party/wiredtiger/src/cache/cache_las.c
@@ -960,8 +960,11 @@ __las_sweep_init(WT_SESSION_IMPL *session)
     /*
      * If no files have been dropped and the lookaside file is empty, there's nothing to do.
      */
-    if (cache->las_dropped_next == 0 && __wt_las_empty(session))
-        WT_ERR(WT_NOTFOUND);
+    if (cache->las_dropped_next == 0) {
+        if (__wt_las_empty(session))
+            ret = WT_NOTFOUND;
+        goto err;
+    }
 
     /*
      * Record the current page ID: sweep will stop after this point.
diff --git a/src/third_party/wiredtiger/src/include/txn.i b/src/third_party/wiredtiger/src/include/txn.i
index 5359e296fa0..3bef4c8b905 100644
--- a/src/third_party/wiredtiger/src/include/txn.i
+++ b/src/third_party/wiredtiger/src/include/txn.i
@@ -633,6 +633,13 @@ __wt_txn_visible_all(WT_SESSION_IMPL *session, uint64_t id, wt_timestamp_t times
 {
     wt_timestamp_t pinned_ts;
 
+    /*
+     * When shutting down, the transactional system has finished running and all we care about is
+     * eviction, make everything visible.
+     */
+    if (F_ISSET(S2C(session), WT_CONN_CLOSING))
+        return (true);
+
     if (!__txn_visible_all_id(session, id))
         return (false);
 
@@ -640,15 +647,13 @@ __wt_txn_visible_all(WT_SESSION_IMPL *session, uint64_t id, wt_timestamp_t times
     if (timestamp == WT_TS_NONE)
         return (true);
 
-    /*
-     * If no oldest timestamp has been supplied, updates have to stay in cache until we are shutting
-     * down.
-     */
-    if (!S2C(session)->txn_global.has_pinned_timestamp)
-        return (F_ISSET(S2C(session), WT_CONN_CLOSING));
+    /* If no oldest timestamp has been supplied, updates have to stay in cache. */
+    if (S2C(session)->txn_global.has_pinned_timestamp) {
+        __wt_txn_pinned_timestamp(session, &pinned_ts);
+        return (timestamp <= pinned_ts);
+    }
 
-    __wt_txn_pinned_timestamp(session, &pinned_ts);
-    return (timestamp <= pinned_ts);
+    return (false);
 }
 
 /*
diff --git a/src/third_party/wiredtiger/src/txn/txn.c b/src/third_party/wiredtiger/src/txn/txn.c
index 7aaba221842..68e0c0fa920 100644
--- a/src/third_party/wiredtiger/src/txn/txn.c
+++ b/src/third_party/wiredtiger/src/txn/txn.c
@@ -1547,15 +1547,6 @@ __wt_txn_global_shutdown(WT_SESSION_IMPL *session, const char *config, const cha
         }
     }
 
-    /*
-     * All application transactions have completed, ignore the pinned timestamp so that updates can
-     * be evicted from the cache during connection close.
-     *
-     * Note that we are relying on a special case in __wt_txn_visible_all that returns true during
-     * close when there is no pinned timestamp set.
-     */
-    conn->txn_global.has_pinned_timestamp = false;
-
     return (ret);
 }
 
diff --git a/src/third_party/wiredtiger/test/evergreen.yml b/src/third_party/wiredtiger/test/evergreen.yml
index a61c797e683..40dfc5d8874 100755
--- a/src/third_party/wiredtiger/test/evergreen.yml
+++ b/src/third_party/wiredtiger/test/evergreen.yml
@@ -59,8 +59,9 @@ functions:
         else
           cd build_posix
           sh ./reconf
-          ${configure_env_vars|} ../configure ${configure_python_setting|} \
-            ${posix_configure_flags|--enable-diagnostic --enable-python --enable-zlib --enable-strict --enable-static --prefix=$(pwd)/LOCAL_INSTALL}
+          ${configure_env_vars|CC=/opt/mongodbtoolchain/v3/bin/gcc CXX=/opt/mongodbtoolchain/v3/bin/g++ PATH=/opt/mongodbtoolchain/v3/bin:$PATH CFLAGS="-ggdb"} \
+            ../configure ${configure_python_setting|} \
+            ${posix_configure_flags|--enable-silent-rules --enable-diagnostic --enable-python --enable-zlib --enable-strict --enable-static --prefix=$(pwd)/LOCAL_INSTALL}
           ${make_command|make} ${smp_command|} 2>&1
 
           # On macOS, change the binary location with install_name_tool since DYLD_LIBRARY_PATH
@@ -114,16 +115,18 @@ post:
 tasks:
 ## Base compile task on posix flavours
   - name: compile
+    tags: ["pull_request"]
     commands:
       - func: "get project"
       - func: "compile wiredtiger"
 
   - name: compile-asan
+    tags: ["pull_request"]
     commands:
       - func: "get project"
       - func: "compile wiredtiger"
         vars:
-          configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/clang CXX=/opt/mongodbtoolchain/v3/bin/clang++ ASAN_OPTIONS=detect_leaks=1:abort_on_error=1:disable_coredump=0 ASAN_SYMBOLIZER_PATH=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer CFLAGS=-fsanitize=address
+          configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/clang CXX=/opt/mongodbtoolchain/v3/bin/clang++ ASAN_OPTIONS=detect_leaks=1:abort_on_error=1:disable_coredump=0 ASAN_SYMBOLIZER_PATH=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer CFLAGS="-fsanitize=address -ggdb"
           posix_configure_flags: --enable-silent-rules --enable-strict --enable-diagnostic --disable-static
 
   - name: make-check-test
@@ -144,6 +147,7 @@ tasks:
   # Start of normal make check test tasks
 
   - name: lang-python-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -154,6 +158,7 @@ tasks:
           directory: lang/python
 
   - name: examples-c-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -163,7 +168,8 @@ tasks:
         vars:
           directory: examples/c
 
-  - name: examples-c-test-asan
+  - name: examples-c-asan-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile-asan
     commands:
@@ -172,13 +178,14 @@ tasks:
           dependent_task: compile-asan
       - func: "compile wiredtiger"
         vars:
-          configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/clang CXX=/opt/mongodbtoolchain/v3/bin/clang++ ASAN_OPTIONS=detect_leaks=1:abort_on_error=1:disable_coredump=0 ASAN_SYMBOLIZER_PATH=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer CFLAGS=-fsanitize=address
+          configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/clang CXX=/opt/mongodbtoolchain/v3/bin/clang++ ASAN_OPTIONS=detect_leaks=1:abort_on_error=1:disable_coredump=0 ASAN_SYMBOLIZER_PATH=/opt/mongodbtoolchain/v3/bin/llvm-symbolizer CFLAGS="-fsanitize=address -ggdb"
           posix_configure_flags: --enable-silent-rules --enable-strict --enable-diagnostic --disable-static
       - func: "make check directory"
         vars:
           directory: examples/c
 
   - name: bloom-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -189,6 +196,7 @@ tasks:
           directory: test/bloom
 
   - name: checkpoint-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -199,6 +207,7 @@ tasks:
           directory: test/checkpoint
 
   - name: cursor-order-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -209,6 +218,7 @@ tasks:
           directory: test/cursor_order
 
   - name: fops-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -219,6 +229,7 @@ tasks:
           directory: test/fops
 
   - name: format-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -229,6 +240,7 @@ tasks:
           directory: test/format
 
   - name: huge-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -239,6 +251,7 @@ tasks:
           directory: test/huge
 
   - name: manydbs-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -249,6 +262,7 @@ tasks:
           directory: test/manydbs
 
   - name: packing-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -259,6 +273,7 @@ tasks:
           directory: test/packing
 
   - name: readonly-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -269,6 +284,7 @@ tasks:
           directory: test/readonly
 
   - name: salvage-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -279,6 +295,7 @@ tasks:
           directory: test/salvage
 
   - name: thread-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -289,6 +306,7 @@ tasks:
           directory: test/thread
 
   - name: bench-wtperf-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -303,11 +321,11 @@ tasks:
   # Start of csuite test tasks
 
   - name: csuite-import-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
       - func: "fetch artifacts"
-      - func: "compile wiredtiger"
       - command: shell.exec
         params:
           working_dir: "wiredtiger/build_posix"
@@ -318,6 +336,7 @@ tasks:
             ${test_env_vars|} $(pwd)/../test/csuite/import/smoke.sh 2>&1
 
   - name: csuite-random-abort-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -332,6 +351,7 @@ tasks:
             ${test_env_vars|} $(pwd)/../test/csuite/random_abort/smoke.sh 2>&1
 
   - name: csuite-random-directio-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -346,6 +366,7 @@ tasks:
             ${test_env_vars|} $(pwd)/../test/csuite/random_directio/smoke.sh 2>&1
 
   - name: csuite-schema-abort-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -360,6 +381,7 @@ tasks:
             ${test_env_vars|} $(pwd)/../test/csuite/schema_abort/smoke.sh 2>&1
 
   - name: csuite-timestamp-abort-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -374,6 +396,7 @@ tasks:
             ${test_env_vars|} $(pwd)/../test/csuite/timestamp_abort/smoke.sh 2>&1
 
   - name: csuite-scope-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -388,6 +411,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_scope 2>&1
 
   - name: csuite-truncated-log-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -402,6 +426,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_truncated_log 2>&1
 
   - name: csuite-wt1965-col-efficiency-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -416,6 +441,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt1965_col_efficiency 2>&1
 
   - name: csuite-wt2403-lsm-workload-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -430,6 +456,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2403_lsm_workload 2>&1
 
   - name: csuite-wt2447-join-main-table-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -444,6 +471,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2447_join_main_table 2>&1
 
   - name: csuite-wt2695-checksum-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -458,6 +486,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2695_checksum 2>&1
 
   - name: csuite-wt2592-join-schema-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -472,6 +501,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2592_join_schema 2>&1
 
   - name: csuite-wt2719-reconfig-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -486,6 +516,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2719_reconfig 2>&1
 
   - name: csuite-wt2999-join-extractor-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -500,6 +531,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2999_join_extractor 2>&1
 
   - name: csuite-wt3120-filesys-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -514,6 +546,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3120_filesys 2>&1
 
   - name: csuite-wt3135-search-near-collator-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -528,6 +561,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3135_search_near_collator 2>&1
 
   - name: csuite-wt3184-dup-index-collator-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -542,6 +576,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3184_dup_index_collator 2>&1
 
   - name: csuite-wt3363-checkpoint-op-races-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -556,6 +591,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3363_checkpoint_op_races 2>&1
 
   - name: csuite-wt3874-pad-byte-collator-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -570,6 +606,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3874_pad_byte_collator 2>&1
 
   - name: csuite-wt4105-large-doc-small-upd-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -584,6 +621,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4105_large_doc_small_upd 2>&1
 
   - name: csuite-wt4117-checksum-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -598,6 +636,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4117_checksum 2>&1
 
   - name: csuite-wt4156-metadata-salvage-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -612,6 +651,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4156_metadata_salvage 2>&1
 
   - name: csuite-wt4699-json-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -626,6 +666,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4699_json 2>&1
 
   - name: csuite-wt4803-cache-overflow-abort-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -640,6 +681,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4803_cache_overflow_abort 2>&1
 
   - name: csuite-wt4891-meta-ckptlist-get-alloc-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -654,6 +696,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt4891_meta_ckptlist_get_alloc 2>&1
 
   - name: csuite-rwlock-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -668,6 +711,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_rwlock 2>&1
 
   - name: csuite-wt2246-col-append-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -682,6 +726,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2246_col_append 2>&1
 
   - name: csuite-wt2323-join-visibility-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -696,6 +741,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2323_join_visibility 2>&1
 
   - name: csuite-wt2535-insert-race-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -710,6 +756,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2535_insert_race 2>&1
 
   - name: csuite-wt2834-join-bloom-fix-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -724,6 +771,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2834_join_bloom_fix 2>&1
 
   - name: csuite-wt2853-perf-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -738,6 +786,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2853_perf 2>&1
 
   - name: csuite-wt2909-checkpoint-integrity-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -752,6 +801,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt2909_checkpoint_integrity 2>&1
 
   - name: csuite-wt3338-partial-update-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -766,6 +816,7 @@ tasks:
             ${test_env_vars|} $(pwd)/test/csuite/test_wt3338_partial_update 2>&1
 
   - name: csuite-wt4333-handle-locks-test
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
@@ -810,6 +861,7 @@ tasks:
   # "test/suite/run.py [ab]" will be translated to testing "test_a*.py" and "test_b*.py"
 
   - name: unit-test-bucket00
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -824,6 +876,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [ab] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket01
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -838,6 +891,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [c] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket02
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -852,6 +906,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [defg] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket03
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -866,6 +921,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [hijk] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket04
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -880,6 +936,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [lmnopq] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket05
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -894,6 +951,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [rs] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket06
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -908,6 +966,7 @@ tasks:
             ${test_env_vars|} ${python_binary|python} ../test/suite/run.py [t] -v 2 ${smp_command|} 2>&1
 
   - name: unit-test-bucket07
+    tags: ["pull_request", "unit_test"]
     depends_on:
     - name: compile
     commands:
@@ -923,7 +982,37 @@ tasks:
 
   # End of Python unit test tasks
 
+  - name: s-all
+    tags: ["pull_request"]
+    depends_on:
+    - name: compile
+    commands:
+      - func: "fetch artifacts"
+      - command: shell.exec
+        params:
+          working_dir: "wiredtiger/dist"
+          script: |
+            set -o errexit
+            set -o verbose
+            sh s_all -A -E 2>&1
+
+  - name: conf-dump-test
+    tags: ["pull_request"]
+    depends_on:
+    - name: compile
+    commands:
+      - func: "fetch artifacts"
+      - command: shell.exec
+        params:
+          working_dir: "wiredtiger/build_posix/test"
+          script: |
+            set -o errexit
+            set -o verbose
+            
+            ${test_env_vars|} ${python_binary|python} ../../test/wtperf/test_conf_dump.py 2>&1
+
   - name: compile-windows-alt
+    tags: ["pull_request", "windows_only"]
     depends_on:
     - name: compile
     commands:
@@ -938,7 +1027,24 @@ tasks:
             pip install scons==3.1.1
             scons-3.1.1.bat ${smp_command|} "CFLAGS=/Gv /wd4090 /wd4996 /we4047 /we4024 /TC /we4100 /we4133" wiredtiger.dll libwiredtiger.lib
 
+  - name: scons-check
+    tags: ["pull_request", "windows_only"]
+    depends_on:
+    - name: compile
+    commands:
+      - func: "fetch artifacts"
+      - command: shell.exec
+        params:
+          working_dir: "wiredtiger"
+          script: |
+            set -o errexit
+            set -o verbose
+
+            pip install scons==3.1.1
+            scons-3.1.1.bat ${smp_command|} check
+
   - name: fops
+    tags: ["pull_request"]
     depends_on:
     - name: compile
     commands:
@@ -956,6 +1062,7 @@ tasks:
             fi
 
   - name: format
+    tags: ["windows_only"]
     depends_on:
     - name: compile
     commands:
@@ -1117,6 +1224,17 @@ tasks:
             set -o verbose
             ./test/evergreen/verify_wt_datafiles.sh 2>&1
 
+  - name: clang-analyzer
+    tags: ["pull_request"]
+    commands:
+      - func: "get project"
+      - command: shell.exec
+        params:
+          working_dir: "wiredtiger"
+          script: |
+            set -o errexit
+            set -o verbose
+            sh dist/s_clang-scan 2>&1
 
 buildvariants:
 - name: ubuntu1804
@@ -1124,70 +1242,12 @@ buildvariants:
   run_on:
   - ubuntu1804-test
   expansions:
-    # It's ugly, but we need the absolute path here, not the relative
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH LD_LIBRARY_PATH=$(pwd)/.libs top_srcdir=$(pwd)/.. top_builddir=$(pwd)
     smp_command: -j $(grep -c ^processor /proc/cpuinfo)
-    configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/gcc CXX=/opt/mongodbtoolchain/v3/bin/g++ PATH=/opt/mongodbtoolchain/v3/bin:$PATH
+    posix_configure_flags: --enable-silent-rules --enable-diagnostic --enable-python --enable-zlib --enable-snappy --enable-strict --enable-static --prefix=$(pwd)/LOCAL_INSTALL
     make_command: PATH=/opt/mongodbtoolchain/v3/bin:$PATH make
   tasks:
-    - name: compile
-    - name: lang-python-test
-    - name: examples-c-test
-    - name: bloom-test
-    - name: checkpoint-test
-    - name: cursor-order-test
-    - name: fops-test
-    - name: format-test
-    - name: huge-test
-    - name: manydbs-test
-    - name: packing-test
-    - name: readonly-test
-    - name: salvage-test
-    - name: thread-test
-    - name: bench-wtperf-test
-    - name: csuite-import-test
-    - name: csuite-random-abort-test
-    - name: csuite-random-directio-test
-    - name: csuite-schema-abort-test
-    - name: csuite-timestamp-abort-test
-    - name: csuite-scope-test
-    - name: csuite-truncated-log-test
-    - name: csuite-wt1965-col-efficiency-test
-    - name: csuite-wt2403-lsm-workload-test
-    - name: csuite-wt2447-join-main-table-test
-    - name: csuite-wt2695-checksum-test
-    - name: csuite-wt2592-join-schema-test
-    - name: csuite-wt2719-reconfig-test
-    - name: csuite-wt2999-join-extractor-test
-    - name: csuite-wt3120-filesys-test
-    - name: csuite-wt3135-search-near-collator-test
-    - name: csuite-wt3184-dup-index-collator-test
-    - name: csuite-wt3363-checkpoint-op-races-test
-    - name: csuite-wt3874-pad-byte-collator-test
-    - name: csuite-wt4105-large-doc-small-upd-test
-    - name: csuite-wt4117-checksum-test
-    - name: csuite-wt4156-metadata-salvage-test
-    - name: csuite-wt4699-json-test
-    - name: csuite-rwlock-test
-    - name: csuite-wt2246-col-append-test
-    - name: csuite-wt2323-join-visibility-test
-    - name: csuite-wt2535-insert-race-test
-    - name: csuite-wt2834-join-bloom-fix-test
-    - name: csuite-wt2853-perf-test
-    - name: csuite-wt2909-checkpoint-integrity-test
-    - name: csuite-wt3338-partial-update-test
-    - name: csuite-wt4333-handle-locks-test
-    - name: unit-test-bucket00
-    - name: unit-test-bucket01
-    - name: unit-test-bucket02
-    - name: unit-test-bucket03
-    - name: unit-test-bucket04
-    - name: unit-test-bucket05
-    - name: unit-test-bucket06
-    - name: unit-test-bucket07
-    - name: fops
-    - name: compile-asan
-    - name: examples-c-test-asan
+    - name: ".pull_request !.windows_only"
 
 - name: ubuntu1804-python3
   display_name: Ubuntu 18.04 (Python3)
@@ -1196,20 +1256,14 @@ buildvariants:
   expansions:
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH LD_LIBRARY_PATH=$(pwd)/.libs top_srcdir=$(pwd)/.. top_builddir=$(pwd)
     smp_command: -j $(grep -c ^processor /proc/cpuinfo)
-    configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/gcc CXX=/opt/mongodbtoolchain/v3/bin/g++ PATH=/opt/mongodbtoolchain/v3/bin:$PATH
     configure_python_setting: PYTHON=python3
+    posix_configure_flags: --enable-silent-rules --enable-diagnostic --enable-python --enable-zlib --enable-snappy --enable-strict --enable-static --prefix=$(pwd)/LOCAL_INSTALL
     make_command: PATH=/opt/mongodbtoolchain/v3/bin:$PATH make
     python_binary: python3
   tasks:
     - name: compile
-    - name: unit-test-bucket00
-    - name: unit-test-bucket01
-    - name: unit-test-bucket02
-    - name: unit-test-bucket03
-    - name: unit-test-bucket04
-    - name: unit-test-bucket05
-    - name: unit-test-bucket06
-    - name: unit-test-bucket07
+    - name: ".unit_test"
+    - name: conf-dump-test
 
 - name: rhel80
   display_name: RHEL 8.0
@@ -1218,7 +1272,6 @@ buildvariants:
   expansions:
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH LD_LIBRARY_PATH=$(pwd)/.libs top_srcdir=$(pwd)/.. top_builddir=$(pwd)
     smp_command: -j $(grep -c ^processor /proc/cpuinfo)
-    configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/gcc CXX=/opt/mongodbtoolchain/v3/bin/g++ PATH=/opt/mongodbtoolchain/v3/bin:$PATH
     make_command: PATH=/opt/mongodbtoolchain/v3/bin:$PATH make
   tasks:
     - name: compile
@@ -1231,8 +1284,6 @@ buildvariants:
   batchtime: 1440 # 1 day
   run_on:
   - rhel80-build
-  expansions:
-    configure_env_vars: CC=/opt/mongodbtoolchain/v3/bin/gcc CXX=/opt/mongodbtoolchain/v3/bin/g++
   tasks:
     - name: million-collection-test
 
@@ -1250,16 +1301,8 @@ buildvariants:
   - windows-64-vs2017-test
   tasks:
     - name: compile
-    - name: compile-windows-alt
-    - name: unit-test-bucket00
-    - name: unit-test-bucket01
-    - name: unit-test-bucket02
-    - name: unit-test-bucket03
-    - name: unit-test-bucket04
-    - name: unit-test-bucket05
-    - name: unit-test-bucket06
-    - name: unit-test-bucket07
-    #- name: format  - Enable when we have a solution for hangs and crashses
+    - name: ".windows_only"
+    - name: ".unit_test"
     - name: fops
 
 - name: macos-1012
@@ -1268,7 +1311,7 @@ buildvariants:
   - macos-1012
   expansions:
     smp_command: -j $(sysctl -n hw.logicalcpu)
-    configure_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH
+    configure_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH CFLAGS="-ggdb"
     make_command: PATH=/opt/mongodbtoolchain/v3/bin:$PATH ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future make
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH DYLD_LIBRARY_PATH=$(pwd)/.libs top_srcdir=$(pwd)/.. top_builddir=$(pwd)
   tasks:
@@ -1284,7 +1327,6 @@ buildvariants:
   batchtime: 10080 # 7 days
   expansions:
     smp_command: -j $(grep -c ^processor /proc/cpuinfo)
-    configure_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH LD_LIBRARY_PATH=$(pwd)/.libs top_srcdir=$(pwd)/.. top_builddir=$(pwd)
   tasks:
   - name: compile
@@ -1301,7 +1343,6 @@ buildvariants:
   batchtime: 10080 # 7 days
   expansions:
     smp_command: -j $(grep -c ^processor /proc/cpuinfo)
-    configure_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH
     test_env_vars: PATH=/opt/mongodbtoolchain/v3/bin:$PATH LD_LIBRARY_PATH=$(pwd)/.lib top_srcdir=$(pwd)/.. top_builddir=$(pwd)
   tasks:
   - name: compile
diff --git a/src/third_party/wiredtiger/test/evergreen/csuite_test_evg_task.template b/src/third_party/wiredtiger/test/evergreen/csuite_test_evg_task.template
index 42d08c34fa0..dfef6c148c4 100644
--- a/src/third_party/wiredtiger/test/evergreen/csuite_test_evg_task.template
+++ b/src/third_party/wiredtiger/test/evergreen/csuite_test_evg_task.template
@@ -1,4 +1,5 @@
   - name: {{task_name}}
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
diff --git a/src/third_party/wiredtiger/test/evergreen/make_check_test_evg_task.template b/src/third_party/wiredtiger/test/evergreen/make_check_test_evg_task.template
index 762bcfff29d..7d59974ddab 100644
--- a/src/third_party/wiredtiger/test/evergreen/make_check_test_evg_task.template
+++ b/src/third_party/wiredtiger/test/evergreen/make_check_test_evg_task.template
@@ -1,15 +1,10 @@
  - name: {{task_name}}
+    tags: ["pull_request"]
     depends_on:
       - name: compile
     commands:
       - func: "fetch artifacts"
       - func: "compile wiredtiger"
-      - command: shell.exec
-        params:
-          working_dir: "wiredtiger"
-          script: |
-            set -o errexit
-            set -o verbose
-
-            ${test_env_vars|} ${make_command|make} VERBOSE=1 check -C {{test_dir}} ${smp_command|} 2>&1
-
+      - func: "make check directory"
+        vars:
+          directory: {{test_dir}}
diff --git a/src/third_party/wiredtiger/test/suite/test_log03.py b/src/third_party/wiredtiger/test/suite/test_log03.py
index b7a0353ac59..b0eed555cca 100755
--- a/src/third_party/wiredtiger/test/suite/test_log03.py
+++ b/src/third_party/wiredtiger/test/suite/test_log03.py
@@ -91,9 +91,10 @@ class test_log03(wttest.WiredTigerTestCase):
         baseline = self.with_log_sync(12, 0)
         #self.tty('baseline: ' + str(baseline))
 
-        for dirty_pct,increase in [50, 8], [33, 16], [25, 24], [20, 32]:
+        incr = 5
+        for dirty_pct,increase in [50, incr], [33, incr*2], [25, incr*3], [20, incr*4]:
             result = self.with_log_sync(12, dirty_pct)
-            #self.tty('tried: ' + str(dirty_pct) + ', got: ' + str(result))
+            #self.tty('tried: ' + str(dirty_pct) + ', got: ' + str(result) + ', expected: ' + str(baseline + increase))
             self.assertGreater(result, baseline + increase)
 
 if __name__ == '__main__':