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mariadb/mysql-test/extra/binlog_tests/binlog_cache_stat.test
Alfranio Correia bf2c66d4a7 BUG#57275 binlog_cache_size affects trx- and stmt-cache and gets twice the expected memory 
After the WL#2687, the binlog_cache_size and max_binlog_cache_size affect both the
stmt-cache and the trx-cache. This means that the resource used is twice the amount
expected/defined by the user.
      
The binlog_cache_use is incremented when the stmt-cache or the trx-cache is used
and binlog_cache_disk_use is incremented when the disk space from the stmt-cache or the
trx-cache is used. This behavior does not allow to distinguish which cache may be harming
performance due to the extra disk accesses and needs to have its in-memory cache
increased.
      
To fix the problem, we introduced two new options and status variables related to the
stmt-cache:
      
  Options:
      
    . binlog_stmt_cache_size
    . max_binlog_stmt_cache_size
      
    Status Variables:
      
    . binlog_stmt_cache_use
    . binlog_stmt_cache_disk_use

So there are

  . binlog_cache_size that defines the size of the transactional cache for
  updates to transactional engines for the binary log.

  . binlog_stmt_cache_size that defines the size of the statement cache for
  updates to non-transactional engines for the binary log.

  . max_binlog_cache_size that sets the total size of the transactional
  cache.

  . max_binlog_stmt_cache_size that sets the total size of the statement
  cache.

  . binlog_cache_use that identifies the number of transactions that used the
  temporary transactional binary log cache.

  . binlog_cache_disk_use that identifies the number of transactions that used
  the temporary transactional binary log cache but that exceeded the value of
  binlog_cache_size.

  . binlog_stmt_cache_use that identifies the number of statements that used the
  temporary non-transactional binary log cache.

  . binlog_stmt_cache_disk_use that identifies the number of statements that used
  the temporary non-transactional binary log cache but that exceeded the value of
  binlog_stmt_cache_size.
2010-11-05 17:42:37 +00:00

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# Embedded server doesn't support binlog
-- source include/not_embedded.inc
-- source include/have_innodb.inc
# Creating tables
--disable_warnings
drop table if exists t1, t2;
--enable_warnings
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=myisam;
#
# This test checks binlog_cache_use and binlog_cache_disk_use when
# transactions are committed and after when they are aborted.
#
#
# Checking commit.
#
--echo **** Preparing the enviroment to check commit and its effect on status variables.
--echo **** Expected: binlog_cache_use = 0, binlog_cache_disk_use = 0.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
flush status;
let $exp_cache= 0;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 0;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Transactional changes which are long enough so they will be flushed to disk...
--echo **** Expected: binlog_cache_use = 1, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
let $1=2000;
disable_query_log;
begin;
while ($1)
{
eval insert into t1 values( $1 );
dec $1;
}
commit;
enable_query_log;
let $exp_cache= 1;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Transactional changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 2, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
begin;
insert into t1 values( 1 );
commit;
let $exp_cache= 2;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Non-Transactional changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 2, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 1, binlog_stmt_cache_disk_use = 0.
begin;
insert into t2 values( 1 );
commit;
let $exp_cache= 2;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 1;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Mixed changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 3, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 2, binlog_stmt_cache_disk_use = 0.
begin;
insert into t1 values( 1 );
insert into t2 values( 1 );
commit;
let $exp_cache= 3;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 2;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
#
# Checking abort.
#
--echo **** Preparing the enviroment to check abort and its effect on the status variables.
--echo **** Expected: binlog_cache_use = 0, binlog_cache_disk_use = 0.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
flush status;
let $exp_cache= 0;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 0;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Transactional changes which are long enough so they will be flushed to disk...
--echo **** Expected: binlog_cache_use = 1, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
let $1=2000;
disable_query_log;
begin;
while ($1)
{
eval insert into t1 values( $1 );
dec $1;
}
rollback;
enable_query_log;
let $exp_cache= 1;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Transactional changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 2, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 0, binlog_stmt_cache_disk_use = 0.
begin;
insert into t1 values( 1 );
rollback;
let $exp_cache= 2;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 0;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Non-Transactional changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 2, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 1, binlog_stmt_cache_disk_use = 0.
begin;
insert into t2 values( 1 );
rollback;
let $exp_cache= 2;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 1;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
--echo **** Mixed changes which should not be flushed to disk and so should not
--echo **** increase either binlog_cache_disk_use or binlog_stmt_cache_disk_use.
--echo **** Expected: binlog_cache_use = 3, binlog_cache_disk_use = 1.
--echo **** Expected: binlog_stmt_cache_use = 2, binlog_stmt_cache_disk_use = 0.
begin;
insert into t1 values( 1 );
insert into t2 values( 1 );
rollback;
let $exp_cache= 3;
let $got_cache= query_get_value(show status like "binlog_cache_use", Value, 1);
let $exp_disk= 1;
let $got_disk= query_get_value(show status like "binlog_cache_disk_use", Value, 1);
let $exp_stmt_cache= 2;
let $got_stmt_cache= query_get_value(show status like "binlog_stmt_cache_use", Value, 1);
let $exp_stmt_disk= 0;
let $got_stmt_disk= query_get_value(show status like "binlog_stmt_cache_disk_use", Value, 1);
if (`SELECT $got_cache <> $exp_cache || $got_disk <> $exp_disk || $got_stmt_cache <> $exp_stmt_cache || $got_stmt_disk <> $exp_stmt_disk`)
{
-- echo "Expected: binlog_cache_use = $exp_cache, binlog_cache_disk_use = $exp_disk but got binlog_cache_use = $got_cache, binlog_cache_disk_use = $got_disk"
-- echo "Expected: binlog_stmt_cache_use = $exp_stmt_cache, binlog_stmt_cache_disk_use = $exp_stmt_disk but got binlog_stmt_cache_use = $got_stmt_cache, binlog_stmt_cache_disk_use = $got_stmt_disk"
-- die
}
drop table t1, t2;
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