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This test was using a sleep of 1 second in an attempt to ensure that the timestamp that is part of an InnoDB status string would increase. This not only prolongs the test execution time by 1+1 seconds, but it also is inaccurate. It is possible that the actual sleep duration is less than a second. Let us wait for the creation of the file ib_buffer_pool and then wait for the buffer pool dump completion. In that way, the test can complete in a dozen or two milliseconds (1% of the previous duration) and work more reliably.
91 lines
3.0 KiB
Plaintext
91 lines
3.0 KiB
Plaintext
# ************************************************************
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# wl6504: This testcase is to check the functionality of the
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# innodb_buffer_pool_dump_pct flag
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# step 1.Set innodb_buffer_pool_dump_pct=100 and take the dump
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# step 2.Set innodb_buffer_pool_dump_pct=1 and take the dump
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# step 3.Compare the size of both the dump files
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#*************************************************************
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--source include/have_innodb.inc
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--source include/have_innodb_16k.inc
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let MYSQLD_DATADIR = `SELECT @@datadir`;
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CREATE TABLE tab5 (col1 int auto_increment primary key,
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col2 VARCHAR(25), col3 varchar(25)) ENGINE=InnoDB;
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CREATE INDEX idx1 ON tab5(col2(10));
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CREATE INDEX idx2 ON tab5(col3(10));
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SET GLOBAL innodb_buffer_pool_dump_pct=100;
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#***********************************************************
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# SELECT *
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# FROM information_schema.global_status
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# WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS'
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# gives
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# a) VARIABLE_NAME VARIABLE_VALUE
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# INNODB_BUFFER_POOL_DUMP_STATUS not started
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# in case there was no innodb_buffer_pool_dump since server start.
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# b) Something like
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# VARIABLE_NAME VARIABLE_VALUE
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# INNODB_BUFFER_POOL_DUMP_STATUS Buffer pool(s) dump completed at 130711 13:43:24
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# in case there was a innodb_buffer_pool_dump since server start.
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# Attention:
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# - There is no guarantee that the current test is the first test which
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# made an innodb_buffer_pool_dump since server startup.
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# - The granularity of the timestamp is one second.
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# - There could have been some dump caused by some previous test
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# just a few milliseconds before.
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#***********************************************************
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--error 0,1
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--remove_file $MYSQLD_DATADIR/ib_buffer_pool
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SET GLOBAL innodb_buffer_pool_dump_now=ON;
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perl;
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my $f="$ENV{MYSQLD_DATADIR}/ib_buffer_pool";
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my $count=300;
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until (-e $f)
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{
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select(undef, undef, undef, .1);
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die "File $f was not created\n" if (0 > --$count);
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}
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EOF
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let $wait_condition = SELECT count(*) = 1
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FROM information_schema.global_status
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WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS'
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AND variable_value like 'Buffer pool(s) dump completed at%';
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--source include/wait_condition.inc
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--move_file $MYSQLD_DATADIR/ib_buffer_pool $MYSQLD_DATADIR/ib_buffer_pool100
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SET GLOBAL innodb_buffer_pool_dump_pct=1;
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SET GLOBAL innodb_buffer_pool_dump_now=ON;
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perl;
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my $f="$ENV{MYSQLD_DATADIR}/ib_buffer_pool";
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my $count=300;
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until (-e $f)
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{
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select(undef, undef, undef, .1);
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die "File $f was not created\n" if (0 > --$count);
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}
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EOF
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let $wait_condition = SELECT count(*) = 1
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FROM information_schema.global_status
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WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS'
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AND variable_value like 'Buffer pool(s) dump completed at%';
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--source include/wait_condition.inc
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--file_exists $MYSQLD_DATADIR/ib_buffer_pool
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perl;
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my $size1 = -s "$ENV{MYSQLD_DATADIR}/ib_buffer_pool";
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my $size100 = -s "$ENV{MYSQLD_DATADIR}/ib_buffer_pool100";
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die "$size100<=$size1\n" unless $size100 > $size1;
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EOF
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SET GLOBAL innodb_buffer_pool_dump_pct=DEFAULT;
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--remove_file $MYSQLD_DATADIR/ib_buffer_pool100
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DROP TABLE tab5;
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