Merge 10.5 into 10.6

mysql-test/suite/galera/disabled.def

@@ -36,9 +36,5 @@ pxc-421: wsrep_provider is read-only for security reasons
 query_cache: MDEV-15805 Test failure on galera.query_cache
 versioning_trx_id: MDEV-18590: galera.versioning_trx_id: Test failure: mysqltest: Result content mismatch
 galera_bf_abort_at_after_statement : Unstable
+galera_bf_abort_shutdown : MDEV-29773 Assertion failure on sql/wsrep_mysqld.cc:2893 in wsrep_bf_abort_shutdown
 
-# Recent trouble
-MDEV-26597 : crashes on 10.5
-MDEV-27615 : crashes on 10.5 after MDEV-26597 fix
-MDEV-29142 : fails on 10.5 with WSREP: Inconsistency detected
-galera_bf_abort_shutdown : MDEV-29368 shutdown hang

mysql-test/suite/galera/r/MDEV-29142.result

@@ -5,10 +5,12 @@ connection node_2;
 connection node_1;
 call mtr.add_suppression("WSREP: Event .* Write_rows_v1 apply failed:.*");
 call mtr.add_suppression("WSREP: Failed to apply write set:.*");
+call mtr.add_suppression("WSREP: Inconsistency detected: Inconsistent by consensus on.*");
 connection node_2;
 call mtr.add_suppression("WSREP: Failed to open table mysql.wsrep_streaming_log for writing");
 call mtr.add_suppression("WSREP: Failed to open SR table for write");
 call mtr.add_suppression("WSREP: Failed to recover SR transactions from schema: wsrep_on : 0");
+call mtr.add_suppression("WSREP: Inconsistency detected: Inconsistent by consensus on.*");
 SET @@global.tx_read_only = ON;
 SET default_storage_engine = SEQUENCE;
 create table t1 (c1 int);

mysql-test/suite/galera/t/MDEV-29142.test

@@ -10,11 +10,13 @@
 --connection node_1
 call mtr.add_suppression("WSREP: Event .* Write_rows_v1 apply failed:.*");
 call mtr.add_suppression("WSREP: Failed to apply write set:.*");
+call mtr.add_suppression("WSREP: Inconsistency detected: Inconsistent by consensus on.*");
 
 --connection node_2
 call mtr.add_suppression("WSREP: Failed to open table mysql.wsrep_streaming_log for writing");
 call mtr.add_suppression("WSREP: Failed to open SR table for write");
 call mtr.add_suppression("WSREP: Failed to recover SR transactions from schema: wsrep_on : 0");
+call mtr.add_suppression("WSREP: Inconsistency detected: Inconsistent by consensus on.*");
 
 SET @@global.tx_read_only = ON;
 --error 0,1286

mysql-test/suite/galera_3nodes/disabled.def

@@ -32,3 +32,4 @@ galera_ipv6_rsync_section : MDEV-24097 MTR sporadaically fails: Failed to start
 galera_ssl_reload : MDEV-24097 MTR sporadaically fails: Failed to start mysqld or mysql_shutdown failed
 galera_toi_vote : MDEV-24097 MTR sporadaically fails: Failed to start mysqld or mysql_shutdown failed
 galera_wsrep_schema_init : MDEV-24097 MTR sporadaically fails: Failed to start mysqld or mysql_shutdown failed
+galera_parallel_apply_3nodes : MDEV-29774 Galera test galera_parallel_apply_3nodes is unstable

mysql-test/suite/galera_sr/disabled.def

@@ -12,6 +12,3 @@
 
 GCF-1060 : MDEV-26528 wrong usage of mutex LOCK_thd_kill and LOCK_thd_kill
 
-galera_sr_ws_size2 : MDEV-29773 assertion failure
-galera-features#56 : MDEV-29773 assertion failure
-MDEV-27615 : MDEV-29773 assertion failure

sql/wsrep_mysqld.cc

@@ -3676,19 +3676,28 @@ bool wsrep_consistency_check(THD *thd)
 void wsrep_commit_empty(THD* thd, bool all)
 {
   DBUG_ENTER("wsrep_commit_empty");
-  WSREP_DEBUG("wsrep_commit_empty(%llu)", thd->thread_id);
+  WSREP_DEBUG("wsrep_commit_empty for %llu client_state %s client_mode"
+              " %s trans_state %s sql %s",
+              thd_get_thread_id(thd),
+              wsrep::to_c_string(thd->wsrep_cs().state()),
+              wsrep::to_c_string(thd->wsrep_cs().mode()),
+              wsrep::to_c_string(thd->wsrep_cs().transaction().state()),
+              wsrep_thd_query(thd));
+
   if (wsrep_is_real(thd, all) &&
       wsrep_thd_is_local(thd) &&
       thd->wsrep_trx().active() &&
       !thd->internal_transaction() &&
       thd->wsrep_trx().state() != wsrep::transaction::s_committed)
   {
-    /* @todo CTAS with STATEMENT binlog format and empty result set
-       seems to be committing empty. Figure out why and try to fix
-       elsewhere. */
+    /* Here transaction is either empty (i.e. no changes) or
+       it was CREATE TABLE with no row binlog format or
+       we have already aborted transaction e.g. because max writeset size
+       has been reached. */
     DBUG_ASSERT(!wsrep_has_changes(thd) ||
                 (thd->lex->sql_command == SQLCOM_CREATE_TABLE &&
-                 !thd->is_current_stmt_binlog_format_row()));
+                 !thd->is_current_stmt_binlog_format_row()) ||
+                thd->wsrep_cs().transaction().state() == wsrep::transaction::s_aborted);
     bool have_error= wsrep_current_error(thd);
     int ret= wsrep_before_rollback(thd, all) ||
       wsrep_after_rollback(thd, all) ||

sql/wsrep_thd.h

@@ -184,7 +184,6 @@ void wsrep_reset_threadvars(THD *);
 
 static inline void wsrep_override_error(THD *thd, uint error, const char *format= 0, ...)
 {
-  DBUG_ASSERT(error != ER_ERROR_DURING_COMMIT);
   Diagnostics_area *da= thd->get_stmt_da();
   if (da->is_ok() ||
       da->is_eof() ||