MariaRocks: Run rocksdb testsuite with @@rocksdb_flush_log_at_trx_commit=0

The default value of 1 causes many tests to time out (primary reason is
that many tests populate tables with one-row INSERT statements that
run with autocommit=1).

storage/rocksdb/mysql-test/rocksdb/my.cnf

@@ -9,3 +9,5 @@ sql-mode=NO_ENGINE_SUBSTITUTION
 explicit-defaults-for-timestamp=1
 loose-rocksdb_lock_wait_timeout=1
 loose-rocksdb_strict_collation_check=0
+
+loose-rocksdb-flush-log-at-trx-commit=0

storage/rocksdb/mysql-test/rocksdb/r/rocksdb.result

@@ -910,7 +910,7 @@ rocksdb_enable_bulk_load_api	ON
 rocksdb_enable_thread_tracking	OFF
 rocksdb_enable_write_thread_adaptive_yield	OFF
 rocksdb_error_if_exists	OFF
-rocksdb_flush_log_at_trx_commit	1
+rocksdb_flush_log_at_trx_commit	0
 rocksdb_flush_memtable_on_analyze	ON
 rocksdb_force_compute_memtable_stats	ON
 rocksdb_force_flush_memtable_now	OFF

storage/rocksdb/mysql-test/rocksdb/r/write_sync.result

 SET GLOBAL rocksdb_write_disable_wal=false;
 SET GLOBAL rocksdb_write_ignore_missing_column_families=true;
 create table aaa (id int primary key, i int) engine rocksdb;
+set @save_rocksdb_flush_log_at_trx_commit= @@global.rocksdb_flush_log_at_trx_commit;
 SET LOCAL rocksdb_flush_log_at_trx_commit=0;
 select variable_value into @a from information_schema.global_status where variable_name='rocksdb_wal_synced';
 insert aaa(id, i) values(1,1);
@@ -33,7 +34,7 @@ SET LOCAL rocksdb_flush_log_at_trx_commit=0;
 insert aaa(id, i) values(7,1);
 truncate table aaa;
 drop table aaa;
-SET GLOBAL rocksdb_flush_log_at_trx_commit=1;
+SET GLOBAL rocksdb_flush_log_at_trx_commit=@save_rocksdb_flush_log_at_trx_commit;
 SET GLOBAL rocksdb_write_disable_wal=false;
 SET GLOBAL rocksdb_write_ignore_missing_column_families=false;
 SET GLOBAL rocksdb_background_sync=off;

storage/rocksdb/mysql-test/rocksdb/t/write_sync.test

@@ -4,7 +4,7 @@ SET GLOBAL rocksdb_write_disable_wal=false;
 SET GLOBAL rocksdb_write_ignore_missing_column_families=true;
 
 create table aaa (id int primary key, i int) engine rocksdb;
-
+set @save_rocksdb_flush_log_at_trx_commit= @@global.rocksdb_flush_log_at_trx_commit;
 SET LOCAL rocksdb_flush_log_at_trx_commit=0;
 --exec sleep 30
 select variable_value into @a from information_schema.global_status where variable_name='rocksdb_wal_synced';
@@ -35,7 +35,7 @@ truncate table aaa;
 
 # Cleanup
 drop table aaa;
-SET GLOBAL rocksdb_flush_log_at_trx_commit=1;
+SET GLOBAL rocksdb_flush_log_at_trx_commit=@save_rocksdb_flush_log_at_trx_commit; 
 SET GLOBAL rocksdb_write_disable_wal=false;
 SET GLOBAL rocksdb_write_ignore_missing_column_families=false;
 SET GLOBAL rocksdb_background_sync=off;