| Bug #73168 | locking/unlocking overhead for THD::LOCK_thd_data | ||
|---|---|---|---|
| Submitted: | 2 Jul 2014 4:14 | Modified: | 2 Jul 2014 11:15 |
| Reporter: | liu hickey (OCA) | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S5 (Performance) |
| Version: | 5.6/5.7 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | LOCK_thd_data, set_query | ||
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
