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Bug#11733 (COMMITs should not happen if read-only is set) Bug#22009 (Can write to a read-only server under some circumstances) See the work log for details The change consist of a) acquiring the global read lock in SET GLOBAL READONLY b) honoring opt_readonly in ha_commit_trans(), c) honoring opt_readonly in mysql_lock_tables(). a) takes care of the server stability, b) makes the transactional tables safe (Bug 11733) c) makes the non transactional tables safe (Bug 22009) mysql-test/r/read_only.result: WL#3602 (SET GLOBAL READONLY) mysql-test/t/read_only.test: WL#3602 (SET GLOBAL READONLY) sql/handler.cc: WL#3602 (SET GLOBAL READONLY) sql/lock.cc: WL#3602 (SET GLOBAL READONLY) sql/set_var.cc: WL#3602 (SET GLOBAL READONLY) sql/set_var.h: WL#3602 (SET GLOBAL READONLY) mysql-test/r/read_only_innodb.result: WL#3602 (SET GLOBAL READONLY) mysql-test/t/read_only_innodb.test: WL#3602 (SET GLOBAL READONLY)
44 lines
882 B
Plaintext
44 lines
882 B
Plaintext
# should work with embedded server after mysqltest is fixed
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-- source include/not_embedded.inc
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-- source include/have_innodb.inc
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#
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# BUG#11733: COMMITs should not happen if read-only is set
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#
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--disable_warnings
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DROP TABLE IF EXISTS table_11733 ;
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--enable_warnings
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# READ_ONLY does nothing to SUPER users
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# so we use a non-SUPER one:
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grant CREATE, SELECT, DROP on *.* to test@localhost;
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connect (con1,localhost,test,,test);
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connection default;
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set global read_only=0;
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# Any transactional engine will do
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create table table_11733 (a int) engine=InnoDb;
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connection con1;
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BEGIN;
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insert into table_11733 values(11733);
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connection default;
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set global read_only=1;
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connection con1;
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select @@global.read_only;
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select * from table_11733 ;
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-- error ER_OPTION_PREVENTS_STATEMENT
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COMMIT;
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connection default;
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set global read_only=0;
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drop table table_11733 ;
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drop user test@localhost;
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