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567c097359
Warnings are added to net_server.cc when global_system_variables.log_warnings >= 4. When the above condition holds then: - All communication errors from net_serv.cc is also written to the error log. - In case of a of not being able to read or write a packet, a more detailed error is given. Other things: - Added detection of slaves that has hangup to Ack_receiver::run() - vio_close() is now first marking the socket closed before closing it. The reason for this is to ensure that the connection that gets a read error can check if the reason was that the socket was closed. - Add a new state to vio to be able to detect if vio is acive, shutdown or closed. This is used to detect if socket is closed by another thread. - Testing of the new warnings is done in rpl_get_lock.test - Suppress some of the new warnings in mtr to allow one to run some of the tests with -mysqld=--log-warnings=4. All test in the 'rpl' suite can now be run with this option. - Ensure that global.log_warnings are restored at test end in a way that allows one to use mtr --mysqld=--log-warnings=4. Reviewed-by: <serg@mariadb.org>,<brandon.nesterenko@mariadb.com>
39 lines
1 KiB
Text
39 lines
1 KiB
Text
include/master-slave.inc
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[connection master]
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SET GLOBAL LOG_WARNINGS=4;
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create table t1(n int);
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insert into t1 values(get_lock("lock",2));
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disconnect master;
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connection master1;
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select get_lock("lock",2);
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get_lock("lock",2)
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1
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select release_lock("lock");
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release_lock("lock")
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1
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connection slave;
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select get_lock("lock",3);
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get_lock("lock",3)
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1
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select * from t1;
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n
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1
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select is_free_lock("lock"), is_used_lock("lock") = connection_id();
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is_free_lock("lock") is_used_lock("lock") = connection_id()
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0 1
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explain extended select is_free_lock("lock"), is_used_lock("lock");
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select is_free_lock('lock') AS `is_free_lock("lock")`,is_used_lock('lock') AS `is_used_lock("lock")`
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select is_free_lock("lock2");
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is_free_lock("lock2")
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1
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select is_free_lock(NULL);
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is_free_lock(NULL)
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NULL
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connection master1;
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drop table t1;
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connection slave;
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connection default;
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include/rpl_end.inc
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