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MDEV-25502: rpl.rpl_perfschema_applier_status_by_worker failed in bb with: Test assertion failed

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Problem:
=======
Test assertion fails on slave.

Assertion text: 'Last_Seen_Transaction should show .'
Assertion condition: '"0-1-1" = ""'
Assertion condition, interpolated: '"0-1-1" = ""'
Assertion result: '0'

Analysis:
========
Test case creates a table on master and it waits for it to be replicated to
slave and applied by slave applier. On completion 'Last_Seen_Transaction'
value from 'performance_schema.replication_applier_status_by_worker' table
is compared with '@@gtid_slave_pos' to ensure its correctness. The test
should ensure that user table and 'gtid_slave_pos' table are of same engine
type 'InnoDB' to get consistent test results. This guarantees that
'gtid_slave_pos' table is updated as part of transaction commit. In the of
such an engine consistency, user table gets created in default MyISAM
storage engine and 'mysql.gtid_slave_pos' table gets created in Aria
storage engine. When the test code reaches above assert there might be a
delay in an update to 'gtid_slave_pos' table, which leads to test assertion
failure.

Fix:
===
Use InnoDB engine for both user table and 'mysql.gtid_slave_pos' table.
This commit is contained in:
Sujatha
2021-05-04 15:40:05 +05:30
parent 025eed061b
commit 11597e02f3
2 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
mysql-test/suite/rpl/r/rpl_perfschema_applier_status_by_worker.result
View File

@@ -13,6 +13,7 @@ RESET SLAVE ALL;
CHANGE MASTER 'slave1' TO MASTER_USER='root',MASTER_PORT=$MASTER_MYPORT, MASTER_HOST='127.0.0.1', MASTER_USE_GTID=slave_pos; CHANGE MASTER 'slave1' TO MASTER_USER='root',MASTER_PORT=$MASTER_MYPORT, MASTER_HOST='127.0.0.1', MASTER_USE_GTID=slave_pos;
SET default_master_connection='slave1'; SET default_master_connection='slave1';
SET @@global.slave_parallel_workers=1; SET @@global.slave_parallel_workers=1;
ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
START SLAVE 'slave1'; START SLAVE 'slave1';
include/wait_for_slave_to_start.inc include/wait_for_slave_to_start.inc
include/assert.inc [Channel_name will be empty for a worker when it has not processed any transaction] include/assert.inc [Channel_name will be empty for a worker when it has not processed any transaction]
@@ -20,7 +21,7 @@ include/assert.inc [thread_name should should indicate worker thread.]
include/assert.inc [Service_State should be "ON" on a fresh slave server.] include/assert.inc [Service_State should be "ON" on a fresh slave server.]
include/assert.inc [Last_Seen_Transaction should show "" if no transaction applierd] include/assert.inc [Last_Seen_Transaction should show "" if no transaction applierd]
connection master; connection master;
CREATE TABLE t1 (a INT); CREATE TABLE t1 (a INT) ENGINE=InnoDB;
connection slave; connection slave;
include/assert.inc [Channel_name must be slave1] include/assert.inc [Channel_name must be slave1]
include/assert.inc [Last_Seen_Transaction should show 0-1-1.] include/assert.inc [Last_Seen_Transaction should show 0-1-1.]

6
mysql-test/suite/rpl/t/rpl_perfschema_applier_status_by_worker.test
View File

@@ -1,4 +1,3 @@
--source include/have_perfschema.inc
# ==== Purpose ==== # ==== Purpose ====
# #
# This test script serves as the functionality testing for the table # This test script serves as the functionality testing for the table
@@ -33,7 +32,9 @@
# #
# MDEV-20220: Merge 5.7 P_S replication table 'replication_applier_status_by_worker # MDEV-20220: Merge 5.7 P_S replication table 'replication_applier_status_by_worker
# #
--source include/have_perfschema.inc
--source include/have_binlog_format_mixed.inc --source include/have_binlog_format_mixed.inc
--source include/have_innodb.inc
--source include/master-slave.inc --source include/master-slave.inc
@@ -54,6 +55,7 @@ RESET SLAVE ALL;
evalp CHANGE MASTER 'slave1' TO MASTER_USER='root',MASTER_PORT=$MASTER_MYPORT, MASTER_HOST='127.0.0.1', MASTER_USE_GTID=slave_pos; evalp CHANGE MASTER 'slave1' TO MASTER_USER='root',MASTER_PORT=$MASTER_MYPORT, MASTER_HOST='127.0.0.1', MASTER_USE_GTID=slave_pos;
SET default_master_connection='slave1'; SET default_master_connection='slave1';
SET @@global.slave_parallel_workers=1; SET @@global.slave_parallel_workers=1;
ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;
START SLAVE 'slave1'; START SLAVE 'slave1';
--source include/wait_for_slave_to_start.inc --source include/wait_for_slave_to_start.inc
@@ -80,7 +82,7 @@ let $assert_cond= "$ps_value" = "";
source include/assert.inc; source include/assert.inc;
--connection master --connection master
CREATE TABLE t1 (a INT); CREATE TABLE t1 (a INT) ENGINE=InnoDB;
--save_master_pos --save_master_pos
--connection slave --connection slave