view protocol test failure: perfschema.no_threads

perfschema.no_threads                    w1 [ fail ]

        Test ended at 2025-05-02 05:13:42

CURRENT_TEST: perfschema.no_threads

mysqltest: At line 36: Could not open connection 'util': 2013 Lost connection to server at 'handshake: reading initial communication packet', system error: 110

The result from queries just before the failure was:

< snip >

drop table if exists test.t1;

truncate table performance_schema.events_waits_current;

truncate table performance_schema.events_waits_history;

truncate table performance_schema.events_waits_history_long;

show global variables like "thread_handling";

Variable_name	Value

thread_handling	no-threads

show status like "Performance_schema_thread_instances_lost";

Variable_name	Value

Performance_schema_thread_instances_lost	0

create table test.t1(a int) engine=MYISAM;

show global variables like "performance_schema";

Variable_name	Value

performance_schema	ON

show global variables like "performance_schema_max_thread%";

Variable_name	Value

performance_schema_max_thread_classes	50

performance_schema_max_thread_instances	50

select count(*) from performance_schema.threads

where name like "thread/sql/main";

More results from queries before failure can be found in /build/mysql-test/var/1/log/no_threads.log

 - skipping '/build/mysql-test/var/1/log/perfschema.no_threads/'