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MDEV-20139 innodb.innodb_buffer_pool_dump_pct failed in buildbot with timeout

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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.
This commit is contained in:
Marko Mäkelä
2023-12-12 11:43:23 +02:00
parent 61daac54d6
commit 9f5078a1d7
2 changed files with 21 additions and 35 deletions
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9
mysql-test/suite/innodb/r/innodb_buffer_pool_dump_pct.result
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@@ -3,17 +3,8 @@ col2 VARCHAR(25), col3 varchar(25)) ENGINE=InnoDB;
CREATE INDEX idx1 ON tab5(col2(10));
CREATE INDEX idx2 ON tab5(col3(10));
SET GLOBAL innodb_buffer_pool_dump_pct=100;
SELECT variable_value INTO @IBPDS
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS';
SET GLOBAL innodb_buffer_pool_dump_now=ON;
SET GLOBAL innodb_buffer_pool_dump_pct=1;
SELECT @@global.innodb_buffer_pool_dump_pct;
@@global.innodb_buffer_pool_dump_pct
1
SELECT variable_value INTO @IBPDS
FROM information_schema.global_status
WHERE variable_name = 'INNODB_BUFFER_POOL_DUMP_STATUS';
SET GLOBAL innodb_buffer_pool_dump_now=ON;
SET GLOBAL innodb_buffer_pool_dump_pct=DEFAULT;
DROP TABLE tab5;