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MDEV-4981: Account for queries handled by query-cache in USER_STATISTICS (and in HOST_STATISTICS)

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Added collection statistics for queries resolved via query cache.
This commit is contained in:
unknown
2013-10-04 08:33:09 +03:00
parent eae0a45f4e
commit 2f4db5348a
4 changed files with 140 additions and 2 deletions
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79
mysql-test/r/query_cache.result
View File

@ -1932,6 +1932,85 @@ set local query_cache_type= on;
select @@query_cache_size, @@global.query_cache_type, @@local.query_cache_type;
@@query_cache_size @@global.query_cache_type @@local.query_cache_type
20971520 ON ON
#
# MDEV-4981: Account for queries handled by query-cache in
# USER_STATISTICS (and in HOST_STATISTICS)
#
SET GLOBAL userstat=1;
set GLOBAL query_cache_size=1355776;
FLUSH USER_STATISTICS;
FLUSH CLIENT_STATISTICS;
reset query cache;
flush status;
create table t1 (a int);
insert into t1 values (1);
select * from t1;
a
1
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
1 1 0
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
2 2 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from t1;
a
1
select * from t1;
a
1
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
5 5 0
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
6 6 0
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 2
drop table t1;
FLUSH USER_STATISTICS;
FLUSH CLIENT_STATISTICS;
flush status;
create table t1 (a int);
select * from t1;
a
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
1 0 1
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
2 1 1
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 0
select * from t1;
a
select * from t1;
a
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
5 2 3
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
SELECT_COMMANDS ROWS_SENT EMPTY_QUERIES
6 3 3
show status like "Qcache_hits";
Variable_name Value
Qcache_hits 2
drop table t1;
SET GLOBAL userstat=default;
End of 5.5 tests
restore defaults
SET GLOBAL query_cache_type= default;
SET GLOBAL query_cache_size= default;

52
mysql-test/t/query_cache.test
View File

@ -1617,6 +1617,58 @@ select @@query_cache_size, @@global.query_cache_type, @@local.query_cache_type;
set local query_cache_type= on;
select @@query_cache_size, @@global.query_cache_type, @@local.query_cache_type;
--echo #
--echo # MDEV-4981: Account for queries handled by query-cache in
--echo # USER_STATISTICS (and in HOST_STATISTICS)
--echo #
SET GLOBAL userstat=1;
set GLOBAL query_cache_size=1355776;
FLUSH USER_STATISTICS;
FLUSH CLIENT_STATISTICS;
reset query cache;
flush status;
create table t1 (a int);
insert into t1 values (1);
select * from t1;
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
show status like "Qcache_hits";
select * from t1;
select * from t1;
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
show status like "Qcache_hits";
drop table t1;
FLUSH USER_STATISTICS;
FLUSH CLIENT_STATISTICS;
flush status;
create table t1 (a int);
select * from t1;
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
show status like "Qcache_hits";
select * from t1;
select * from t1;
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.CLIENT_STATISTICS
where CLIENT="localhost";
select SELECT_COMMANDS,ROWS_SENT,EMPTY_QUERIES from INFORMATION_SCHEMA.USER_STATISTICS
where USER="root";
show status like "Qcache_hits";
drop table t1;
SET GLOBAL userstat=default;
--echo End of 5.5 tests
--echo restore defaults
SET GLOBAL query_cache_type= default;