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Re: MySQL 8.0: InnoDB: mmap failed; errno 12
Posted by: Sujith S
Date: October 05, 2018 10:05PM

If I enable log level 3

2018-10-06T04:01:17.462452Z 1 [Note] [MY-012955] [InnoDB] InnoDB: Initializing buffer pool, total size = 189.000000G, instances = 8, chunk size =128.000000M
2018-10-06T04:01:26.201177Z 0 [ERROR] [MY-012681] [InnoDB] InnoDB: mmap(137428992 bytes) failed; errno 12
2018-10-06T04:01:26.912001Z 0 [ERROR] [MY-012681] [InnoDB] InnoDB: mmap(137428992 bytes) failed; errno 12
2018-10-06T04:01:27.699439Z 0 [ERROR] [MY-012681] [InnoDB] InnoDB: mmap(137428992 bytes) failed; errno 12
2018-10-06T04:01:27.700373Z 0 [ERROR] [MY-012681] [InnoDB] InnoDB: mmap(137428992 bytes) failed; errno 12
2018-10-06T04:01:30.160976Z 1 [ERROR] [MY-012956] [InnoDB] InnoDB: Cannot allocate memory for the buffer pool
2018-10-06T04:01:30.161030Z 1 [ERROR] [MY-012930] [InnoDB] InnoDB: Plugin initialization aborted with error Generic error.
2018-10-06T04:01:30.161088Z 1 [ERROR] [MY-010334] [Server] Failed to initialize DD Storage Engine
2018-10-06T04:01:30.161578Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2018-10-06T04:01:30.161685Z 0 [ERROR] [MY-010119] [Server] Aborting


Following seems to be the values that MySQL has calculated.
Initializing buffer pool, total size = 189.000000G, instances = 8, chunk size =128.000000M

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Re: MySQL 8.0: InnoDB: mmap failed; errno 12
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