| Bug #87621 | Huge InnoDB slowdown when selecting strings without indexes | ||
|---|---|---|---|
| Submitted: | 31 Aug 2017 9:45 | Modified: | 4 Sep 2017 9:54 |
| Reporter: | Sveta Smirnova (OCA) | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S3 (Non-critical) |
| Version: | 5.6.37, 5.7.19 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
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
[1 Sep 2017 11:50]
Umesh Shastry
[1 Sep 2017 11:54]
Sveta Smirnova
R script to generate data
Attachment: gen_data.R (text/x-r-source), 321 bytes.
[4 Sep 2017 9:56]
Umesh Shastry
5.7.19 - Test results with 100M load file
Attachment: 87621.results (application/octet-stream, text), 4.97 KiB.
