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(8.0) PS-9453: percona_telemetry causes a long wait on COND_thd_list due to the absence of the root user #5460

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Oct 24, 2024
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(8.0) PS-9453: percona_telemetry causes a long wait on COND_thd_list due to the absence of the root user #5460

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12 changes: 11 additions & 1 deletion mysql-test/include/mtr_check.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,17 @@ BEGIN
AND USER NOT IN ('unauthenticated user','mysql.session', 'event_scheduler')
ORDER BY COMMAND;

-- During the installation of Percona Telemetry Component we grant 'mysql.session' user with additional privileges.
-- It happens during the server startup, so servers started during the test will have related timestamps different in general.
-- Some tests (e.g. clone plugin related) restore the clone instance state by cloning the donor. In such a case restored
-- instance will have different timestamps at the beginning and the end of the test and MTR check will complain because of
-- different tables checksums.
-- Workaround this problem by excluding mysql.tables_priv from checksum calculation.
-- Instead, dump all tables privileges but without TIMESTAMP column.
-- This is the same approach as for INFORMATION_SCHEMA.ROUTINES above.
SELECT /*+SET_VAR(use_secondary_engine=OFF)*/ host, db, user, table_name, grantor, table_priv, column_priv
FROM mysql.tables_priv ORDER BY host, db, user, table_name;

-- Checksum system tables to make sure they have been properly
-- restored after test.
-- skip mysql.proc however, as created timestamps may have been updated by
Expand Down Expand Up @@ -238,7 +249,6 @@ BEGIN
mysql.replication_group_member_actions,
mysql.role_edges,
mysql.slow_log,
mysql.tables_priv,
mysql.time_zone,
mysql.time_zone_leap_second,
mysql.time_zone_name,
Expand Down
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