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Type:
Bug
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Status: Closed (View Workflow)
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: 10.1.5
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Fix Version/s: 10.1.6
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Component/s: Storage Engine - InnoDB, Storage Engine - XtraDB
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Labels:None
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Sprint:10.1.6-1
Hi,
Dumping the buffer pool on shutdown is very noisy when having large buffer pool:
[...]
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2015-06-10 15:14:43 140091534046976 [Warning] InnoDB: Dumping buffer pool(s) to .//ib_buffer_pool
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2015-06-10 15:14:43 140091534046976 [Note] InnoDB: Dumping buffer pool 1/35, page 1/124296
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2015-06-10 15:14:43 140091534046976 [Note] InnoDB: Dumping buffer pool 1/35, page 129/124296
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[...]
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2015-06-10 15:14:45 140091534046976 [Note] InnoDB: Dumping buffer pool 35/35, page 123905/124054
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2015-06-10 15:14:45 140091534046976 [Note] InnoDB: Dumping buffer pool 35/35, page 124033/124054
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2015-06-10 15:14:45 140091534046976 [Warning] InnoDB: Buffer pool(s) dump completed at 150610 15:14:45
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[...]
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cat mysqld2.log | wc --lines --bytes
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33824 3241720
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cat mysqld2.log | grep -v "Dumping buffer pool" | wc --lines --bytes
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41 3938
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So the logs for the dump account for 3MB and more than 33K lines on a less than 3 seconds dump.
In 10.0.16, I do not have all those lines when doing MariaDB restart:
150611 12:50:05 [Note] /usr/sbin/mysqld: Normal shutdown
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[...]
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150611 12:50:05 [Note] InnoDB: Starting shutdown...
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2015-06-11 12:50:06 7ee566df7700 InnoDB: Dumping buffer pool(s) to .//ib_buffer_pool
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2015-06-11 12:50:09 7ee566df7700 InnoDB: Buffer pool(s) dump completed at 150611 12:50:09
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[...]
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150611 12:50:30 [Note] /usr/sbin/mysqld: Shutdown complete
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[...]
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150611 12:50:31 mysqld_safe Starting mysqld_wrapper daemon with databases from [...]
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[...]
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Version: '10.0.16-MariaDB-log' socket: 'mysql.sock' port: 3306 MariaDB Server
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Thanks for looking into that,
JFG