Bug #45892 Innodb calls fsync for writes with innodb_flush_method=O_DIRECT
| Submitted: | 2 Jul 2009 0:24 | Modified: | 12 Mar 2013 22:52 |
|---|---|---|---|
| Reporter: | Mark Callaghan | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S5 (Performance) |
| Version: | 5.0,5.1 | OS: | Any |
| Assigned to: | Inaam Rana | CPU Architecture: | Any |
| Tags: | fsync, innodb | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
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