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A fix for Bug#22891 "session level max_allowed_packet can be

set but is ignored".
                                  
This patch makes @@session.max_allowed_packed and
@@session.net_buffer_length read-only as suggested in the bug
report. The user will have to use SET GLOBAL (and reconnect)
to alter the session values of these variables.
                            
The error string ER_VARIABLE_IS_READONLY is introduced.
                            
Tests are modified accordingly.
This commit is contained in:
Staale Smedseng
2008-11-20 08:51:48 +01:00
parent b8cd1725b1
commit e60c8c8b68
18 changed files with 176 additions and 239 deletions

View File

@ -146,25 +146,23 @@ show global variables like 'myisam_max_sort_file_size';
--replace_result 9223372036853727232 FILE_SIZE 2146435072 FILE_SIZE
select * from information_schema.global_variables where variable_name like 'myisam_max_sort_file_size';
# bug#22891: modified to take read-only SESSION net_buffer_length into account
set global net_retry_count=10, session net_retry_count=10;
set global net_buffer_length=1024, net_write_timeout=200, net_read_timeout=300;
set session net_buffer_length=2048, net_write_timeout=500, net_read_timeout=600;
show global variables like 'net_%';
select * from information_schema.global_variables where variable_name like 'net_%' order by 1;
show session variables like 'net_%';
select * from information_schema.session_variables where variable_name like 'net_%' order by 1;
set session net_buffer_length=8000, global net_read_timeout=900, net_write_timeout=1000;
set global net_buffer_length=8000, global net_read_timeout=900, net_write_timeout=1000;
show global variables like 'net_%';
select * from information_schema.global_variables where variable_name like 'net_%' order by 1;
show session variables like 'net_%';
select * from information_schema.session_variables where variable_name like 'net_%' order by 1;
set net_buffer_length=1;
show variables like 'net_buffer_length';
select * from information_schema.session_variables where variable_name like 'net_buffer_length';
set global net_buffer_length=1;
show global variables like 'net_buffer_length';
select * from information_schema.global_variables where variable_name like 'net_buffer_length';
#warning 1292
set net_buffer_length=2000000000;
show variables like 'net_buffer_length';
select * from information_schema.session_variables where variable_name like 'net_buffer_length';
set global net_buffer_length=2000000000;
show global variables like 'net_buffer_length';
select * from information_schema.global_variables where variable_name like 'net_buffer_length';
set character set cp1251_koi8;
show variables like "character_set_client";
@ -274,7 +272,7 @@ select @@long_query_time;
set long_query_time=100.000001;
select @@long_query_time;
set low_priority_updates=1;
set max_allowed_packet=100;
set global max_allowed_packet=100;
set global max_binlog_cache_size=100;
set global max_binlog_size=100;
set global max_connect_errors=100;
@ -288,7 +286,7 @@ set global max_user_connections=100;
select @@max_user_connections;
set global max_write_lock_count=100;
set myisam_sort_buffer_size=100;
set net_buffer_length=100;
set global net_buffer_length=100;
set net_read_timeout=100;
set net_write_timeout=100;
set global query_cache_limit=100;