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|
use mysql;
truncate table general_log;
select * from general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from general_log
truncate table slow_log;
select * from slow_log;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text
truncate table general_log;
select * from general_log where argument like '%general_log%';
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from general_log where argument like '%general_log%'
create table join_test (verbose_comment varchar (80), command_type varchar(64));
insert into join_test values ("User performed a usual SQL query", "Query");
insert into join_test values ("New DB connection was registered", "Connect");
insert into join_test values ("Get the table info", "Field List");
select verbose_comment, user_host, argument
from mysql.general_log join join_test
on (mysql.general_log.command_type = join_test.command_type);
verbose_comment user_host argument
User performed a usual SQL query USER_HOST select * from general_log where argument like '%general_log%'
User performed a usual SQL query USER_HOST create table join_test (verbose_comment varchar (80), command_type varchar(64))
User performed a usual SQL query USER_HOST insert into join_test values ("User performed a usual SQL query", "Query")
User performed a usual SQL query USER_HOST insert into join_test values ("New DB connection was registered", "Connect")
User performed a usual SQL query USER_HOST insert into join_test values ("Get the table info", "Field List")
User performed a usual SQL query USER_HOST select verbose_comment, user_host, argument
from mysql.general_log join join_test
on (mysql.general_log.command_type = join_test.command_type)
drop table join_test;
flush logs;
lock tables mysql.general_log WRITE;
ERROR HY000: You can't write-lock a log table. Only read access is possible
lock tables mysql.slow_log WRITE;
ERROR HY000: You can't write-lock a log table. Only read access is possible
lock tables mysql.general_log READ;
ERROR HY000: You can't use usual read lock with log tables. Try READ LOCAL instead
lock tables mysql.slow_log READ;
ERROR HY000: You can't use usual read lock with log tables. Try READ LOCAL instead
lock tables mysql.slow_log READ LOCAL, mysql.general_log READ LOCAL;
unlock tables;
lock tables mysql.general_log READ LOCAL;
flush logs;
unlock tables;
select "Mark that we woke up from flush logs in the test"
as "test passed";
test passed
Mark that we woke up from flush logs in the test
lock tables mysql.general_log READ LOCAL;
truncate mysql.general_log;
unlock tables;
select "Mark that we woke up from TRUNCATE in the test"
as "test passed";
test passed
Mark that we woke up from TRUNCATE in the test
use test;
truncate table mysql.general_log;
set names utf8;
create table bug16905 (s char(15) character set utf8 default 'пусто');
insert into bug16905 values ('новое');
select * from mysql.general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query set names utf8
TIMESTAMP USER_HOST THREAD_ID 1 Query create table bug16905 (s char(15) character set utf8 default 'пусто')
TIMESTAMP USER_HOST THREAD_ID 1 Query insert into bug16905 values ('новое')
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from mysql.general_log
drop table bug16905;
truncate table mysql.slow_log;
set session long_query_time=1;
select sleep(2);
sleep(2)
0
select * from mysql.slow_log;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text
TIMESTAMP USER_HOST QUERY_TIME 00:00:00 1 0 test 0 0 1 select sleep(2)
alter table mysql.general_log engine=myisam;
ERROR HY000: You cannot 'ALTER' a log table if logging is enabled
alter table mysql.slow_log engine=myisam;
ERROR HY000: You cannot 'ALTER' a log table if logging is enabled
drop table mysql.general_log;
ERROR HY000: You cannot 'DROP' a log table if logging is enabled
drop table mysql.slow_log;
ERROR HY000: You cannot 'DROP' a log table if logging is enabled
set global general_log='OFF';
alter table mysql.slow_log engine=myisam;
ERROR HY000: You cannot 'ALTER' a log table if logging is enabled
set global slow_query_log='OFF';
show create table mysql.general_log;
Table Create Table
general_log CREATE TABLE `general_log` (
`event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext,
`thread_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`command_type` varchar(64) DEFAULT NULL,
`argument` mediumtext
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='General log'
show create table mysql.slow_log;
Table Create Table
slow_log CREATE TABLE `slow_log` (
`start_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext NOT NULL,
`query_time` time NOT NULL,
`lock_time` time NOT NULL,
`rows_sent` int(11) NOT NULL,
`rows_examined` int(11) NOT NULL,
`db` varchar(512) DEFAULT NULL,
`last_insert_id` int(11) DEFAULT NULL,
`insert_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`sql_text` mediumtext NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='Slow log'
alter table mysql.general_log engine=myisam;
alter table mysql.slow_log engine=myisam;
show create table mysql.general_log;
Table Create Table
general_log CREATE TABLE `general_log` (
`event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext,
`thread_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`command_type` varchar(64) DEFAULT NULL,
`argument` mediumtext
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='General log'
show create table mysql.slow_log;
Table Create Table
slow_log CREATE TABLE `slow_log` (
`start_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext NOT NULL,
`query_time` time NOT NULL,
`lock_time` time NOT NULL,
`rows_sent` int(11) NOT NULL,
`rows_examined` int(11) NOT NULL,
`db` varchar(512) DEFAULT NULL,
`last_insert_id` int(11) DEFAULT NULL,
`insert_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`sql_text` mediumtext NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='Slow log'
set global general_log='ON';
set global slow_query_log='ON';
select * from mysql.general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query set names utf8
TIMESTAMP USER_HOST THREAD_ID 1 Query create table bug16905 (s char(15) character set utf8 default 'пусто')
TIMESTAMP USER_HOST THREAD_ID 1 Query insert into bug16905 values ('новое')
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from mysql.general_log
TIMESTAMP USER_HOST THREAD_ID 1 Query drop table bug16905
TIMESTAMP USER_HOST THREAD_ID 1 Query truncate table mysql.slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query set session long_query_time=1
TIMESTAMP USER_HOST THREAD_ID 1 Query select sleep(2)
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from mysql.slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query alter table mysql.general_log engine=myisam
TIMESTAMP USER_HOST THREAD_ID 1 Query alter table mysql.slow_log engine=myisam
TIMESTAMP USER_HOST THREAD_ID 1 Query drop table mysql.general_log
TIMESTAMP USER_HOST THREAD_ID 1 Query drop table mysql.slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query set global general_log='OFF'
TIMESTAMP USER_HOST THREAD_ID 1 Query set global slow_query_log='ON'
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from mysql.general_log
flush logs;
lock tables mysql.general_log WRITE;
ERROR HY000: You can't write-lock a log table. Only read access is possible
lock tables mysql.slow_log WRITE;
ERROR HY000: You can't write-lock a log table. Only read access is possible
lock tables mysql.general_log READ;
ERROR HY000: You can't use usual read lock with log tables. Try READ LOCAL instead
lock tables mysql.slow_log READ;
ERROR HY000: You can't use usual read lock with log tables. Try READ LOCAL instead
lock tables mysql.slow_log READ LOCAL, mysql.general_log READ LOCAL;
unlock tables;
set global general_log='OFF';
set global slow_query_log='OFF';
set @save_storage_engine= @@session.storage_engine;
set storage_engine= MEMORY;
alter table mysql.slow_log engine=ndb;
ERROR HY000: This storage engine cannot be used for log tables"
alter table mysql.slow_log engine=innodb;
ERROR HY000: This storage engine cannot be used for log tables"
alter table mysql.slow_log engine=archive;
ERROR HY000: This storage engine cannot be used for log tables"
alter table mysql.slow_log engine=blackhole;
ERROR HY000: This storage engine cannot be used for log tables"
set storage_engine= @save_storage_engine;
drop table mysql.slow_log;
drop table mysql.general_log;
drop table mysql.general_log;
ERROR 42S02: Unknown table 'general_log'
drop table mysql.slow_log;
ERROR 42S02: Unknown table 'slow_log'
use mysql;
CREATE TABLE `general_log` (
`event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext,
`thread_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`command_type` varchar(64) DEFAULT NULL,
`argument` mediumtext
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='General log';
CREATE TABLE `slow_log` (
`start_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
ON UPDATE CURRENT_TIMESTAMP,
`user_host` mediumtext NOT NULL,
`query_time` time NOT NULL,
`lock_time` time NOT NULL,
`rows_sent` int(11) NOT NULL,
`rows_examined` int(11) NOT NULL,
`db` varchar(512) DEFAULT NULL,
`last_insert_id` int(11) DEFAULT NULL,
`insert_id` int(11) DEFAULT NULL,
`server_id` int(11) DEFAULT NULL,
`sql_text` mediumtext NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='Slow log';
set global general_log='ON';
set global slow_query_log='ON';
use test;
flush tables with read lock;
unlock tables;
use mysql;
lock tables general_log read local, help_category read local;
unlock tables;
use mysql;
RENAME TABLE general_log TO renamed_general_log;
ERROR HY000: Cannot rename 'general_log'. When logging enabled, rename to/from log table must rename two tables: the log table to an archive table and another table back to 'general_log'
RENAME TABLE slow_log TO renamed_slow_log;
ERROR HY000: Cannot rename 'slow_log'. When logging enabled, rename to/from log table must rename two tables: the log table to an archive table and another table back to 'slow_log'
truncate table general_log;
select * from general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from general_log
truncate table slow_log;
select * from slow_log;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text
create table general_log_new like general_log;
rename table general_log TO renamed_general_log, general_log_new TO general_log;
create table slow_log_new like slow_log;
rename table slow_log TO renamed_slow_log, slow_log_new TO slow_log;
rename table general_log TO general_log_new, renamed_general_log TO general_log, slow_log to renamed_slow_log;
ERROR HY000: Cannot rename 'slow_log'. When logging enabled, rename to/from log table must rename two tables: the log table to an archive table and another table back to 'slow_log'
select * from general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query create table slow_log_new like slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query rename table slow_log TO renamed_slow_log, slow_log_new TO slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query rename table general_log TO general_log_new, renamed_general_log TO general_log, slow_log to renamed_slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from general_log
select * from renamed_general_log;
event_time user_host thread_id server_id command_type argument
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from general_log
TIMESTAMP USER_HOST THREAD_ID 1 Query truncate table slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query select * from slow_log
TIMESTAMP USER_HOST THREAD_ID 1 Query create table general_log_new like general_log
TIMESTAMP USER_HOST THREAD_ID 1 Query rename table general_log TO renamed_general_log, general_log_new TO general_log
select * from slow_log;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text
select * from renamed_slow_log;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text
set global general_log='OFF';
RENAME TABLE general_log TO general_log2;
set global slow_query_log='OFF';
RENAME TABLE slow_log TO slow_log2;
set global general_log='ON';
ERROR HY000: Cannot activate 'general' log
set global slow_query_log='ON';
ERROR HY000: Cannot activate 'slow query' log
RENAME TABLE general_log2 TO general_log;
RENAME TABLE slow_log2 TO slow_log;
set global general_log='ON';
set global slow_query_log='ON';
flush logs;
flush logs;
drop table renamed_general_log, renamed_slow_log;
use test;
use mysql;
repair table general_log;
Table Op Msg_type Msg_text
mysql.general_log repair status OK
repair table slow_log;
Table Op Msg_type Msg_text
mysql.slow_log repair status OK
create table general_log_new like general_log;
create table slow_log_new like slow_log;
show tables like "%log%";
Tables_in_mysql (%log%)
general_log
general_log_new
ndb_binlog_index
slow_log
slow_log_new
drop table slow_log_new, general_log_new;
use test;
SET GLOBAL LOG_OUTPUT = 'TABLE';
SET GLOBAL general_log = 0;
FLUSH LOGS;
TRUNCATE TABLE mysql.general_log;
ALTER TABLE mysql.general_log ENGINE = MyISAM;
ALTER TABLE mysql.general_log
ADD COLUMN seq BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY;
SET GLOBAL general_log = 1;
FLUSH LOGS;
SELECT * FROM mysql.general_log;
event_time user_host thread_id server_id command_type argument seq
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query FLUSH LOGS 1
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 2
SELECT * FROM mysql.general_log;
event_time user_host thread_id server_id command_type argument seq
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query FLUSH LOGS 1
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 2
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 3
SELECT "My own query 1";
My own query 1
My own query 1
SELECT "My own query 2";
My own query 2
My own query 2
SELECT * FROM mysql.general_log;
event_time user_host thread_id server_id command_type argument seq
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query FLUSH LOGS 1
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 2
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 3
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT "My own query 1" 4
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT "My own query 2" 5
EVENT_TIME USER_HOST THREAD_ID SERVER_ID Query SELECT * FROM mysql.general_log 6
SET GLOBAL general_log = 0;
FLUSH LOGS;
ALTER TABLE mysql.general_log DROP COLUMN seq;
ALTER TABLE mysql.general_log ENGINE = CSV;
SET @old_long_query_time:=@@long_query_time;
SET GLOBAL slow_query_log = 0;
FLUSH LOGS;
TRUNCATE TABLE mysql.slow_log;
ALTER TABLE mysql.slow_log ENGINE = MyISAM;
ALTER TABLE mysql.slow_log
ADD COLUMN seq BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY;
SET SESSION long_query_time = 1;
SET GLOBAL slow_query_log = 1;
FLUSH LOGS;
SELECT "My own slow query", sleep(2);
My own slow query sleep(2)
My own slow query 0
SELECT "My own slow query", sleep(2);
My own slow query sleep(2)
My own slow query 0
SELECT "My own slow query", sleep(2);
My own slow query sleep(2)
My own slow query 0
SELECT "My own slow query", sleep(2);
My own slow query sleep(2)
My own slow query 0
SELECT * FROM mysql.slow_log WHERE seq >= 2 LIMIT 3;
start_time user_host query_time lock_time rows_sent rows_examined db last_insert_id insert_id server_id sql_text seq
START_TIME USER_HOST QUERY_TIME 00:00:00 1 0 test NULL NULL 1 SELECT "My own slow query", sleep(2) 2
START_TIME USER_HOST QUERY_TIME 00:00:00 1 0 test NULL NULL 1 SELECT "My own slow query", sleep(2) 3
START_TIME USER_HOST QUERY_TIME 00:00:00 1 0 test NULL NULL 1 SELECT "My own slow query", sleep(2) 4
SET GLOBAL slow_query_log = 0;
SET SESSION long_query_time =@old_long_query_time;
FLUSH LOGS;
ALTER TABLE mysql.slow_log DROP COLUMN seq;
ALTER TABLE mysql.slow_log ENGINE = CSV;
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