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#
# Tests for the performance_schema host_cache.
#
# Simulate failures from per user quotas:
# - reported in COUNT_MAX_USER_CONNECTION_ERRORS
# - reported in COUNT_MAX_USER_CONNECTION_PER_HOUR_ERRORS
# Simulate failures from server quotas:
# - reported in COUNT_MAX_CONNECTION_ERRORS
--source include/not_embedded.inc
--source include/have_debug.inc
--source include/have_perfschema.inc
--source include/have_hostname_cache.inc
# Enforce a clean state
--source ../include/wait_for_pfs_thread_count.inc
--source ../include/hostcache_set_state.inc
--disable_cursor_protocol
select @@global.max_connections into @saved_max_connections;
select @@global.max_user_connections into @saved_max_user_connections;
--enable_cursor_protocol
create user 'quota'@'santa.claus.ipv4.example.com';
grant select on test.* to 'quota'@'santa.claus.ipv4.example.com';
grant usage on *.* to 'quota'@'santa.claus.ipv4.example.com'
with max_connections_per_hour 3;
connect (con1,"127.0.0.1",root,,test,$MASTER_MYPORT,);
select "Con1 is alive";
select current_user();
disconnect con1;
--connection default
SET @saved_dbug = @@GLOBAL.debug_dbug;
set global debug_dbug= "+d,vio_peer_addr_fake_ipv4,getnameinfo_fake_ipv4,getaddrinfo_fake_good_ipv4";
connect (con2a,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con2a is alive";
select current_user();
disconnect con2a;
--connection default
--source ../include/hostcache_dump.inc
connect (con2b,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con2b is alive";
select current_user();
disconnect con2b;
--connection default
--source ../include/hostcache_dump.inc
connect (con2c,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con2c is alive";
select current_user();
disconnect con2c;
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_USER_LIMIT_REACHED
connect (con2d,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_USER_LIMIT_REACHED
connect (con2e,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
# Wait for all disconnects
--source ../include/wait_for_pfs_thread_count.inc
grant usage on *.* to 'quota'@'santa.claus.ipv4.example.com'
with max_connections_per_hour 0;
grant usage on *.* to 'quota'@'santa.claus.ipv4.example.com'
with max_user_connections 3;
flush user_resources;
connect (con3a,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con7 is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
connect (con3b,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con3b is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
connect (con3c,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con3c is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_USER_LIMIT_REACHED
connect (con3d,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_USER_LIMIT_REACHED
connect (con3e,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
disconnect con3a;
disconnect con3b;
disconnect con3c;
# Wait for all disconnects
--source ../include/wait_for_pfs_thread_count.inc
grant usage on *.* to 'quota'@'santa.claus.ipv4.example.com'
with max_user_connections 0;
flush user_resources;
set global max_user_connections = 3;
connect (con4a,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con4a is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
connect (con4b,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con4b is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
connect (con4c,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con4c is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_TOO_MANY_USER_CONNECTIONS
connect (con4d,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_TOO_MANY_USER_CONNECTIONS
connect (con4e,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
disconnect con4a;
disconnect con4b;
disconnect con4c;
# Wait for all disconnects
--source ../include/wait_for_pfs_thread_count.inc
set global max_user_connections = 0;
set global max_connections = 10;
flush user_resources;
connect (tmp_con1,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con2,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con3,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con4,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con5,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con6,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (tmp_con7,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
connect (con5a,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con4a is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
connect (con5b,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
select "Con5b is alive";
select current_user();
--connection default
--source ../include/hostcache_dump.inc
# About error ER_CON_COUNT_ERROR:
# - this error is associated with SQLSTATE 08004,
# and returned from 2 places in the server code.
# - which path returns the error is not predictable,
# as it depends on the server load and thread scheduling
# - one path returns a SQLSTATE of 08004
# - another path returns no SQLSTATE at all,
# and then the client sets a default value of HY000 for SQLSTATE
#
# Testing for error ER_CON_COUNT_ERROR alone causes this to
# be printed in the result file:
# - ERROR 08004: Too many connections
# which in turn causes spurious test failures.
#
# To work around this, this scripts expect to see either
# the error number ER_CON_COUNT_ERROR (it always does)
# or the error number 9999 (it never does, this error does not exist).
# The exact error number and SQLSTATE is not printed in the result file,
# makig this test robust for both cases:
# - ERROR 08004: Too many connections
# - ERROR HY000: Too many connections
--disable_query_log
--error ER_CON_COUNT_ERROR, 9999
connect (con5c,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
--disable_query_log
--error ER_CON_COUNT_ERROR, 9999
connect (con5d,"127.0.0.1",quota,,test,$MASTER_MYPORT,);
--enable_query_log
--connection default
--source ../include/hostcache_dump.inc
disconnect con5a;
disconnect con5b;
--disconnect tmp_con1
--disconnect tmp_con2
--disconnect tmp_con3
--disconnect tmp_con4
--disconnect tmp_con5
--disconnect tmp_con6
--disconnect tmp_con7
# Wait for all disconnects
--source ../include/wait_for_pfs_thread_count.inc
set global max_connections = @saved_max_connections;
set global max_user_connections = @saved_max_user_connections;
# revoke all privileges on test.* from 'quota'@'santa.claus.ipv4.example.com';
drop user 'quota'@'santa.claus.ipv4.example.com';
SET @@GLOBAL.debug_dbug = @saved_dbug;
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