| Bug #61401 | UPDATE performance degrades gradually if a trigger exists | ||
|---|---|---|---|
| Submitted: | 3 Jun 2011 17:47 | Modified: | 16 Jun 2011 19:49 |
| Reporter: | Aurimas Mikalauskas | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Locking | Severity: | S5 (Performance) |
| Version: | MySQL 5.5.3+ | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | innodb, mdl, metadata locks, performance, regression, trigger, UPDATE | ||
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
