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WL#2269 Enable query cache for NDB part 2
-This is mostly fixes for correct behaviour when using query cache + transactions + the thread that fetches commit count from NDB at regular intervals. The major fix is to add a list in thd_ndb, that keeps a list of NDB_SHARE's that were modified by transaction and then "clearing" them in ndbcluster_commit. mysql-test/r/ndb_cache2.result: Updated test cases for the ndb_util thread, more simultaneous tables and more tesst mysql-test/t/ndb_cache2.test: Updated test cases for the ndb_util thread, more simultaneous tables and more advanced tesst sql/ha_ndbcluster.cc: Add table changed during transaction to list of changed tables in Thd_ndb, this list is then used in ndbcluster_commit to invalidate the cached commit_count in share Fix so that ndb_util_thread uses milliseconds "sleeps" Changed so that ndb_commit_count uses the commit_count from share if available sql/ha_ndbcluster.h: Add commit_count_lock to NBD_SHARE, use for detecting simultaneous attempts to update commit_count Add list of tables changed by transaction to Thd_ndb Change check_ndb_connection to take thd as argument, use current_thd as default Added m_rows_changed variable to keep track of if this handler has modified any records within the transaction sql/set_var.cc: Change format of code Sort sys__ variables in aplha order
This commit is contained in:
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@ -1,14 +1,45 @@
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drop table if exists t1;
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drop table if exists t1, t2, t3, t4, t5;
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set GLOBAL query_cache_type=on;
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set GLOBAL query_cache_size=1355776;
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set GLOBAL ndb_cache_check_time=1;
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set GLOBAL ndb_cache_check_time=100;
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reset query cache;
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flush status;
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CREATE TABLE t1 ( pk int not null primary key,
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a int, b int not null, c varchar(20)) ENGINE=ndbcluster;
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CREATE TABLE t1 (
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pk int not null primary key,
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a1 int,
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b1 int not null,
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c1 varchar(20)
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) ENGINE=ndb;
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CREATE TABLE t2 (
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pk int not null primary key,
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a2 int,
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b2 int not null
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) ENGINE=ndb;
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CREATE TABLE t3 (
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pk int not null primary key,
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a3 int,
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b3 int not null,
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c3 int not null,
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d3 varchar(20)
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) ENGINE=ndb;
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CREATE TABLE t4 (
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a4 int,
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b4 int not null,
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c4 char(20)
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) ENGINE=ndbcluster;
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CREATE TABLE t5 (
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pk int not null primary key,
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a5 int,
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b5 int not null,
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c5 varchar(255)
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) ENGINE=ndbcluster;
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insert into t1 value (1, 2, 3, 'First row');
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insert into t2 value (1, 2, 3);
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insert into t3 value (1, 2, 3, 4, '3 - First row');
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insert into t4 value (2, 3, '4 - First row');
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insert into t5 value (1, 2, 3, '5 - First row');
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select * from t1;
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pk a b c
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pk a1 b1 c1
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1 2 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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@ -20,14 +51,14 @@ show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1;
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pk a b c
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pk a1 b1 c1
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1 2 3 First row
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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update t1 set a=3 where pk=1;
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update t1 set a1=3 where pk=1;
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select * from t1;
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pk a b c
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pk a1 b1 c1
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1 3 3 First row
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show status like "Qcache_inserts";
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Variable_name Value
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@ -38,7 +69,7 @@ Qcache_hits 1
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insert into t1 value (2, 7, 8, 'Second row');
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insert into t1 value (4, 5, 6, 'Fourth row');
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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4 5 6 Fourth row
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2 7 8 Second row
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1 3 3 First row
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@ -49,15 +80,15 @@ show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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4 5 6 Fourth row
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2 7 8 Second row
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1 3 3 First row
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 2
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select * from t1 where b=3;
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pk a b c
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select * from t1 where b1=3;
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pk a1 b1 c1
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1 3 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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@ -65,44 +96,44 @@ Qcache_queries_in_cache 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 2
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select * from t1 where b=3;
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pk a b c
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select * from t1 where b1=3;
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pk a1 b1 c1
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1 3 3 First row
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 3
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delete from t1 where c='Fourth row';
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delete from t1 where c1='Fourth row';
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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select * from t1 where b=3;
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pk a b c
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select * from t1 where b1=3;
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pk a1 b1 c1
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1 3 3 First row
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 3
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use test;
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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2 7 8 Second row
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1 3 3 First row
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select * from t1 where b=3;
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pk a b c
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select * from t1 where b1=3;
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pk a1 b1 c1
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1 3 3 First row
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 4
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update t1 set a=4 where b=3;
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update t1 set a1=4 where b1=3;
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use test;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 0
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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2 7 8 Second row
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1 4 3 First row
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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2 7 8 Second row
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1 4 3 First row
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show status like "Qcache_inserts";
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@ -112,11 +143,11 @@ show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 5
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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2 7 8 Second row
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1 4 3 First row
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select * from t1 order by pk desc;
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pk a b c
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pk a1 b1 c1
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2 7 8 Second row
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1 4 3 First row
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show status like "Qcache_queries_in_cache";
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@ -128,64 +159,463 @@ Qcache_inserts 7
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 7
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select * from t2;
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pk a2 b2
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1 2 3
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select * from t3;
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pk a3 b3 c3 d3
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1 2 3 4 3 - First row
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select * from t4;
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a4 b4 c4
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2 3 4 - First row
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select * from t5;
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pk a5 b5 c5
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1 2 3 5 - First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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flush status;
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begin;
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update t1 set a=5 where pk=1;
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update t1 set a1=5 where pk=1;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 4
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 4 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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commit;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 5 3 First row
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 5 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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flush status;
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begin;
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update t1 set a1=6 where pk=1;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 4
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 5 3 First row
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 5 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 6 3 First row
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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commit;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 1
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 1
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 2
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flush status;
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begin;
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insert into t1 set pk=5, a1=6, b1=3, c1="New row";
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 4
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 0
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 where pk=5;
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pk a1 b1 c1
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select * from t1 order by pk desc;
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pk a1 b1 c1
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 6
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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select * from t1 where pk=5;
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pk a1 b1 c1
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5 6 3 New row
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select * from t1 where pk=5;
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pk a1 b1 c1
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5 6 3 New row
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select * from t1 order by pk desc;
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pk a1 b1 c1
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5 6 3 New row
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2 7 8 Second row
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1 6 3 First row
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select * from t1 order by pk desc;
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pk a1 b1 c1
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5 6 3 New row
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 6
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show status like "Qcache_inserts";
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Variable_name Value
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Qcache_inserts 2
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show status like "Qcache_hits";
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Variable_name Value
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Qcache_hits 0
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commit;
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select * from t1 order by pk desc;
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pk a1 b1 c1
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5 6 3 New row
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2 7 8 Second row
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1 6 3 First row
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 5
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show status like "Qcache_inserts";
|
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Variable_name Value
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Qcache_inserts 3
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show status like "Qcache_hits";
|
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Variable_name Value
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Qcache_hits 0
|
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flush status;
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begin;
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delete from t1 where pk=2;
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show status like "Qcache_queries_in_cache";
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Variable_name Value
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Qcache_queries_in_cache 4
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show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 0
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
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Qcache_hits 0
|
||||
select * from t1 where pk=2;
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||||
pk a1 b1 c1
|
||||
2 7 8 Second row
|
||||
select * from t1 order by pk desc;
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pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
2 7 8 Second row
|
||||
1 6 3 First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 6
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 2
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 0
|
||||
select * from t1 where pk=2;
|
||||
pk a1 b1 c1
|
||||
select * from t1 order by pk desc;
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||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 6 3 First row
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 6 3 First row
|
||||
select * from t1 where pk=2;
|
||||
pk a1 b1 c1
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 6
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||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 2
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 0
|
||||
commit;
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 6 3 First row
|
||||
select * from t1 where pk=2;
|
||||
pk a1 b1 c1
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 6
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 4
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 0
|
||||
flush status;
|
||||
begin;
|
||||
update t1 set a1=9 where pk=1;
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||||
update t2 set a2=9 where pk=1;
|
||||
update t3 set a3=9 where pk=1;
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||||
update t4 set a4=9 where a4=2;
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||||
update t5 set a5=9 where pk=1;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 0
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 7
|
||||
Qcache_inserts 0
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 7
|
||||
Qcache_hits 0
|
||||
select * from t1 order by pk desc;
|
||||
pk a b c
|
||||
2 7 8 Second row
|
||||
1 4 3 First row
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 6 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 2 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 2 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
2 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 2 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 1
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 8
|
||||
Qcache_inserts 5
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 7
|
||||
Qcache_hits 0
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 9 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 9 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
9 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 9 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 5
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 0
|
||||
commit;
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 9 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 9 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
9 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 9 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 1
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 8
|
||||
Qcache_inserts 10
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 7
|
||||
Qcache_hits 0
|
||||
select * from t1 order by pk desc;
|
||||
pk a b c
|
||||
2 7 8 Second row
|
||||
1 5 3 First row
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 9
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 7
|
||||
select * from t1 order by pk desc;
|
||||
pk a b c
|
||||
2 7 8 Second row
|
||||
1 5 3 First row
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 9 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 9 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
9 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 9 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 1
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 9
|
||||
Qcache_inserts 10
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 8
|
||||
drop table t1;
|
||||
Qcache_hits 5
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 9 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 9 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
9 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 9 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 10
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 10
|
||||
select * from t1 order by pk desc;
|
||||
pk a1 b1 c1
|
||||
5 6 3 New row
|
||||
1 9 3 First row
|
||||
select * from t2;
|
||||
pk a2 b2
|
||||
1 9 3
|
||||
select * from t3;
|
||||
pk a3 b3 c3 d3
|
||||
1 9 3 4 3 - First row
|
||||
select * from t4;
|
||||
a4 b4 c4
|
||||
9 3 4 - First row
|
||||
select * from t5;
|
||||
pk a5 b5 c5
|
||||
1 9 3 5 - First row
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 5
|
||||
show status like "Qcache_inserts";
|
||||
Variable_name Value
|
||||
Qcache_inserts 10
|
||||
show status like "Qcache_hits";
|
||||
Variable_name Value
|
||||
Qcache_hits 15
|
||||
drop table t1, t2, t3, t4, t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
Variable_name Value
|
||||
Qcache_queries_in_cache 0
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
-- source include/have_ndb.inc
|
||||
|
||||
--disable_warnings
|
||||
drop table if exists t1;
|
||||
drop table if exists t1, t2, t3, t4, t5;
|
||||
--enable_warnings
|
||||
|
||||
|
||||
@ -10,19 +10,47 @@ drop table if exists t1;
|
||||
set GLOBAL query_cache_type=on;
|
||||
set GLOBAL query_cache_size=1355776;
|
||||
# Turn on thread that will fetch commit count for open tables
|
||||
set GLOBAL ndb_cache_check_time=1;
|
||||
set GLOBAL ndb_cache_check_time=100;
|
||||
reset query cache;
|
||||
flush status;
|
||||
|
||||
# Wait for thread to wake up and start "working"
|
||||
sleep 20;
|
||||
|
||||
# Create test table in NDB
|
||||
CREATE TABLE t1 ( pk int not null primary key,
|
||||
a int, b int not null, c varchar(20)) ENGINE=ndbcluster;
|
||||
# Create test tables in NDB
|
||||
CREATE TABLE t1 (
|
||||
pk int not null primary key,
|
||||
a1 int,
|
||||
b1 int not null,
|
||||
c1 varchar(20)
|
||||
) ENGINE=ndb;
|
||||
CREATE TABLE t2 (
|
||||
pk int not null primary key,
|
||||
a2 int,
|
||||
b2 int not null
|
||||
) ENGINE=ndb;
|
||||
CREATE TABLE t3 (
|
||||
pk int not null primary key,
|
||||
a3 int,
|
||||
b3 int not null,
|
||||
c3 int not null,
|
||||
d3 varchar(20)
|
||||
) ENGINE=ndb;
|
||||
CREATE TABLE t4 (
|
||||
a4 int,
|
||||
b4 int not null,
|
||||
c4 char(20)
|
||||
) ENGINE=ndbcluster;
|
||||
CREATE TABLE t5 (
|
||||
pk int not null primary key,
|
||||
a5 int,
|
||||
b5 int not null,
|
||||
c5 varchar(255)
|
||||
) ENGINE=ndbcluster;
|
||||
insert into t1 value (1, 2, 3, 'First row');
|
||||
insert into t2 value (1, 2, 3);
|
||||
insert into t3 value (1, 2, 3, 4, '3 - First row');
|
||||
insert into t4 value (2, 3, '4 - First row');
|
||||
insert into t5 value (1, 2, 3, '5 - First row');
|
||||
|
||||
# Perform one query which should be inerted in query cache
|
||||
# Perform one query which should be inserted in query cache
|
||||
select * from t1;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
@ -33,7 +61,7 @@ select * from t1;
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Update the table and make sure the correct data is returned
|
||||
update t1 set a=3 where pk=1;
|
||||
update t1 set a1=3 where pk=1;
|
||||
select * from t1;
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
@ -48,18 +76,18 @@ select * from t1 order by pk desc;
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Perform a "new" query and make sure the query cache is not hit
|
||||
select * from t1 where b=3;
|
||||
select * from t1 where b1=3;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Same query again...
|
||||
select * from t1 where b=3;
|
||||
select * from t1 where b1=3;
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Delete from the table
|
||||
delete from t1 where c='Fourth row';
|
||||
delete from t1 where c1='Fourth row';
|
||||
show status like "Qcache_queries_in_cache";
|
||||
select * from t1 where b=3;
|
||||
select * from t1 where b1=3;
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Start another connection and check that the query cache is hit
|
||||
@ -67,11 +95,11 @@ connect (con1,localhost,root,,);
|
||||
connection con1;
|
||||
use test;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 where b=3;
|
||||
select * from t1 where b1=3;
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Update the table and switch to other connection
|
||||
update t1 set a=4 where b=3;
|
||||
# Update the table and switch to other connection
|
||||
update t1 set a1=4 where b1=3;
|
||||
connect (con2,localhost,root,,);
|
||||
connection con2;
|
||||
use test;
|
||||
@ -87,10 +115,23 @@ show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
# Use transactions and make sure the query cache is not updated until
|
||||
# transaction is commited
|
||||
# Load all tables into cache
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
|
||||
#####################################################################
|
||||
# Start transaction and perform update
|
||||
# Switch to other transaction and check that update does not show up
|
||||
# Switch back and commit transaction
|
||||
# Switch to other transaction and check that update shows up
|
||||
#####################################################################
|
||||
connection con1;
|
||||
flush status;
|
||||
begin;
|
||||
update t1 set a=5 where pk=1;
|
||||
update t1 set a1=5 where pk=1;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
@ -101,8 +142,6 @@ show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
commit;
|
||||
# Sleep to let the query cache thread update commit count
|
||||
sleep 10;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
@ -116,8 +155,203 @@ show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
drop table t1;
|
||||
#####################################################################
|
||||
# Start transaction and perform update
|
||||
# Switch to other transaction and check that update does not show up
|
||||
# Switch back, perform selects and commit transaction
|
||||
# Switch to other transaction and check that update shows up
|
||||
#####################################################################
|
||||
connection con1;
|
||||
flush status;
|
||||
begin;
|
||||
update t1 set a1=6 where pk=1;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
# The two queries below will not hit cache since transaction is ongoing
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
commit;
|
||||
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
#####################################################################
|
||||
# Start transaction and perform insert
|
||||
# Switch to other transaction and check that insert does not show up
|
||||
# Switch back, perform selects and commit transaction
|
||||
# Switch to other transaction and check that update shows up
|
||||
#####################################################################
|
||||
connection con1;
|
||||
flush status;
|
||||
begin;
|
||||
insert into t1 set pk=5, a1=6, b1=3, c1="New row";
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con2;
|
||||
select * from t1 where pk=5;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
# The below four queries will not be cached, trans is ongoing
|
||||
select * from t1 where pk=5;
|
||||
select * from t1 where pk=5;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
commit;
|
||||
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
connection con1;
|
||||
|
||||
#####################################################################
|
||||
# Start transaction and perform delete
|
||||
# Switch to other transaction and check that delete does not show up
|
||||
# Switch back, perform selects and commit transaction
|
||||
# Switch to other transaction and check that update shows up
|
||||
#####################################################################
|
||||
connection con1;
|
||||
flush status;
|
||||
begin;
|
||||
delete from t1 where pk=2;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con2;
|
||||
select * from t1 where pk=2;
|
||||
select * from t1 order by pk desc;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
# The below four queries will not be cached, trans is ongoing
|
||||
select * from t1 where pk=2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 where pk=2;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
commit;
|
||||
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 where pk=2;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
connection con1;
|
||||
|
||||
#####################################################################
|
||||
# Start a transaction which updates all tables
|
||||
# Switch to other transaction and check updates does not show up
|
||||
# Switch back, perform selects and commit transaction
|
||||
# Switch to other transaction and check that update shows up
|
||||
#####################################################################
|
||||
flush status;
|
||||
begin;
|
||||
update t1 set a1=9 where pk=1;
|
||||
update t2 set a2=9 where pk=1;
|
||||
update t3 set a3=9 where pk=1;
|
||||
update t4 set a4=9 where a4=2;
|
||||
update t5 set a5=9 where pk=1;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
connection con1;
|
||||
# The below five queries will not be cached, trans is ongoing
|
||||
select * from t1 order by pk desc;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
commit;
|
||||
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
connection con1;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
connection con2;
|
||||
select * from t1 order by pk desc;
|
||||
select * from t2;
|
||||
select * from t3;
|
||||
select * from t4;
|
||||
select * from t5;
|
||||
show status like "Qcache_queries_in_cache";
|
||||
show status like "Qcache_inserts";
|
||||
show status like "Qcache_hits";
|
||||
|
||||
drop table t1, t2, t3, t4, t5;
|
||||
|
||||
# There should be no queries in cache, when tables have been dropped
|
||||
show status like "Qcache_queries_in_cache";
|
||||
|
||||
SET GLOBAL query_cache_size=0;
|
||||
|
||||
Reference in New Issue
Block a user