Details
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Bug
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Status: Closed (View Workflow)
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Minor
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Resolution: Fixed
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N/A
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None
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Not for Release Notes
Description
If the combination of aria_pagecache_buffer_size and aria_pagecache_segments is such that one segment size is less than 128K (the current minimal value allowed for aria_pagecache_buffer_size, the server aborts on startup with "Not enough memory" error:
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bb-MDEV-24-monty e2e0a3a3575249bb635fa0415427d4a416278126 |
$ perl ./mtr main.1st --mysqld=--aria_pagecache_segments=32 --mysqld=--aria_pagecache_buffer_size=1M
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...
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2025-05-25 2:19:18 0 [ERROR] mariadbd: Not enough memory to allocate 8 pagecache pages
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2025-05-25 2:19:18 0 [ERROR] Plugin 'Aria' registration as a STORAGE ENGINE failed.
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...
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2025-05-25 2:19:18 0 [ERROR] Aborting
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Warning: Memory not freed: 536
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Memory report from safemalloc
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It could have instead adjust one of the values, as it adjusts the size of the pagecache in case of one segment:
$ perl ./mtr main.1st --mysqld=--aria_pagecache_segments=1 --mysqld=--aria_pagecache_buffer_size=32K
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...
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2025-05-25 2:22:05 0 [Warning] option 'aria-pagecache-buffer-size': unsigned value 32768 adjusted to 131072
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or at least complain about an incompatible combination of parameters and shut down more gracefully.
Attachments
Issue Links
- is caused by
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MDEV-24 Segmented key cache for Aria
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- Closed
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