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.. to be the same as startup.
In resolving MDEV-27461, BUF_LRU_MIN_LEN (256) is the minimum number of
pages for the innodb buffer pool size. Obviously we need more than just
flushing pages. Taking the 16k page size and its default minimum, an
extra 25% is needed on top of the flushing pages to make a workable buffer
pool.
The minimum innodb_buffer_pool_chunk_size (1M) restricts the minimum
otherwise we'd have a pool made up of different chunk sizes.
The resulting minimum innodb buffer pool sizes are:
Page Size, Previously minimum (startup), with change.
4k 5M 2M
8k 5M 3M
16k 5M 5M
32k 24M 10M
64k 24M 20M
With this patch, SET GLOBAL innodb_buffer_pool_size minimums are
enforced.
The evident minimum system variable size for innodb_buffer_pool_size
is 2M, however this is only setable if using 4k page size. As
the order of the page_size and buffer_pool_size aren't fixed, we can't
hide this change.
Subsequent changes:
* innodb_buffer_pool_resize_with_chunks.test - raised of pool resize due to new
minimums. Chunk size also needed increase as the test was for
pool_size < chunk_size to generate a warning.
* Removed srv_buf_pool_min_size and replaced use with MYSQL_SYSVAR_NAME(buffer_pool_size).min_val
* Removed srv_buf_pool_def_size and replaced constant defination in
MYSQL_SYSVAR_LONGLONG(buffer_pool_size)
* Reordered ha_innodb to allow for direct use of MYSQL_SYSVAR_NAME(buffer_pool_size).min_val
* Moved buf_pool_size_align into ha_innodb to access to MYSQL_SYSVAR_NAME(buffer_pool_size).min_val
* loose-innodb_disable_resize_buffer_pool_debug is needed in the
innodb.restart.opt test so that under debug mode, resizing of the
innodb buffer pool can occur.
42 lines
2.0 KiB
Plaintext
42 lines
2.0 KiB
Plaintext
#
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# MDEV-15333 MariaDB (still) slow start
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#
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# FIXME: Unlike MySQL, maybe MariaDB should not read the .ibd files
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# of tables with .isl file or DATA DIRECTORY attribute.
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call mtr.add_suppression("\\[ERROR\\] InnoDB: Invalid flags 0x7a207879 in .*td\\.ibd");
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# FIXME: This is much more noisy than MariaDB 10.1!
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call mtr.add_suppression("\\[ERROR\\] InnoDB: Operating system error number .* in a file operation\\.");
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call mtr.add_suppression("\\[ERROR\\] InnoDB: The error means the system cannot find the path specified\\.");
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call mtr.add_suppression("\\[ERROR\\] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them\\.");
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call mtr.add_suppression("\\[Warning\\] InnoDB: Ignoring tablespace for `test`\\.`td` because it could not be opened\\.");
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CREATE TABLE tr(a INT)ENGINE=InnoDB ROW_FORMAT=REDUNDANT;
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CREATE TABLE tc(a INT)ENGINE=InnoDB ROW_FORMAT=COMPACT
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PAGE_COMPRESSED=1 PAGE_COMPRESSION_LEVEL=9;
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CREATE TABLE td(a INT)ENGINE=InnoDB ROW_FORMAT=DYNAMIC
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STATS_PERSISTENT=0 DATA DIRECTORY='MYSQL_TMP_DIR';
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.ENGINES
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WHERE engine = 'innodb'
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AND support IN ('YES', 'DEFAULT', 'ENABLED');
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COUNT(*)
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1
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SELECT * FROM tr;
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a
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SELECT * FROM tc;
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a
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SELECT * FROM td;
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a
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DROP TABLE tr,tc,td;
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#
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# MDEV-27467 innodb to enfore the minimum innodb_buffer_pool_size in SET (resize) the same as startup
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#
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SELECT @@innodb_buffer_pool_size INTO @innodb_buffer_pool_size_orig;
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SELECT CEILING((256 + 64) * @@innodb_page_size / 1048576) * 1048576 INTO @min_pool_size;
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EXECUTE IMMEDIATE 'SET GLOBAL innodb_buffer_pool_size = ?' USING (@min_pool_size -1);
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ERROR 42000: Variable 'innodb_buffer_pool_size' can't be set to the value of 'WRONG_VALUE'
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SHOW WARNINGS;
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Level Code Message
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Warning 1210 innodb_buffer_pool_size must be at least MIN_VAL for innodb_page_size=PAGE_SIZE
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Error 1231 Variable 'innodb_buffer_pool_size' can't be set to the value of 'WRONG_VALUE'
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EXECUTE IMMEDIATE 'SET GLOBAL innodb_buffer_pool_size = ?' USING (@min_pool_size);
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SET GLOBAL innodb_buffer_pool_size = @innodb_buffer_pool_size_orig;
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