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MW-269 Fix outstanding issues with wsrep_max_ws_rows

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This patch includes two fixes:

1) Rollback when wsrep_max_ws_rows is exceeded would not switch
back to previous autocommit mode; and 2) Internal rows counter
would not be reset on implicit commits.
This commit is contained in:
Daniele Sciascia
2016-05-05 13:20:32 +02:00
committed by Nirbhay Choubey
parent e373f60fd1
commit 5197fcf6b4
5 changed files with 64 additions and 4 deletions
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2
mysql-test/suite/galera/r/galera_defaults.result
View File

@@ -29,7 +29,7 @@ WSREP_DRUPAL_282555_WORKAROUND OFF
WSREP_FORCED_BINLOG_FORMAT NONE
WSREP_LOAD_DATA_SPLITTING ON
WSREP_LOG_CONFLICTS OFF
WSREP_MAX_WS_ROWS 131072
WSREP_MAX_WS_ROWS 0
WSREP_MAX_WS_SIZE 1073741824
WSREP_MYSQL_REPLICATION_BUNDLE 0
WSREP_NOTIFY_CMD

22
mysql-test/suite/galera/r/galera_var_max_ws_rows.result
View File

@@ -89,5 +89,27 @@ DELETE FROM t1 WHERE f2 = 2;
SELECT COUNT(*) = 0 FROM t1;
COUNT(*) = 0
1
SET AUTOCOMMIT = ON;
SET GLOBAL wsrep_max_ws_rows = 1;
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
ERROR HY000: wsrep_max_ws_rows exceeded
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
SET AUTOCOMMIT = OFF;
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
ERROR HY000: wsrep_max_ws_rows exceeded
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
ERROR HY000: wsrep_max_ws_rows exceeded
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
ERROR HY000: wsrep_max_ws_rows exceeded
DROP TABLE t1;
DROP TABLE ten;

37
mysql-test/suite/galera/t/galera_var_max_ws_rows.test
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@@ -110,6 +110,43 @@ DELETE FROM t1 WHERE f2 = 2;
SELECT COUNT(*) = 0 FROM t1;
# Test that wsrep_max_ws_rows is reset when switching autocommit mode
SET AUTOCOMMIT = ON;
SET GLOBAL wsrep_max_ws_rows = 1;
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
--error ER_ERROR_DURING_COMMIT
INSERT INTO t1 (f2) VALUES (2);
INSERT INTO t1 (f2) VALUES (1);
INSERT INTO t1 (f2) VALUES (2);
SET AUTOCOMMIT = OFF;
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
--error ER_ERROR_DURING_COMMIT
INSERT INTO t1 (f2) VALUES (2);
INSERT INTO t1 (f2) VALUES (1);
--error ER_ERROR_DURING_COMMIT
INSERT INTO t1 (f2) VALUES (2);
# Test that wsrep_max_ws_rows is reset on implicit commits
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
START TRANSACTION;
INSERT INTO t1 (f2) VALUES (1);
--error ER_ERROR_DURING_COMMIT
INSERT INTO t1 (f2) VALUES (2);
--disable_query_log
--eval SET GLOBAL wsrep_max_ws_rows = $wsrep_max_ws_rows_orig
--enable_query_log

6
sql/handler.cc
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@@ -6104,7 +6104,7 @@ int handler::ha_write_row(uchar *buf)
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
trans_rollback_stmt(current_thd) || trans_rollback(current_thd);
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
DBUG_RETURN(ER_ERROR_DURING_COMMIT);
}
@@ -6148,7 +6148,7 @@ int handler::ha_update_row(const uchar *old_data, uchar *new_data)
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
trans_rollback_stmt(current_thd) || trans_rollback(current_thd);
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
return ER_ERROR_DURING_COMMIT;
}
@@ -6186,7 +6186,7 @@ int handler::ha_delete_row(const uchar *buf)
current_thd->wsrep_exec_mode != REPL_RECV &&
current_thd->wsrep_affected_rows > wsrep_max_ws_rows)
{
current_thd->transaction_rollback_request= TRUE;
trans_rollback_stmt(current_thd) || trans_rollback(current_thd);
my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
return ER_ERROR_DURING_COMMIT;
}

1
sql/wsrep_hton.cc
View File

@@ -42,6 +42,7 @@ void wsrep_cleanup_transaction(THD *thd)
thd->wsrep_trx_meta.gtid= WSREP_GTID_UNDEFINED;
thd->wsrep_trx_meta.depends_on= WSREP_SEQNO_UNDEFINED;
thd->wsrep_exec_mode= LOCAL_STATE;
thd->wsrep_affected_rows= 0;
return;
}