| Bug #57579 | blobs cause a thread to wait for itself endlessly, before long semaphore death | ||
|---|---|---|---|
| Submitted: | 19 Oct 2010 19:10 | Modified: | 9 Dec 2010 18:44 |
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S1 (Critical) |
| Version: | 5.5.6, 5.5.8-debug | OS: | Any |
| Assigned to: | Marko Mäkelä | 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
[19 Oct 2010 19:12]
Shane Bester
[19 Oct 2010 19:13]
Shane Bester
run this is two or more threads for however long it takes...
Attachment: zlibdml.php (, text), 6.35 KiB.
[20 Oct 2010 5:06]
Shane Bester
debug infos from 5.5.8-debug where i repeated with 3 threads of zlibdml.php and 2 hours runtime
Attachment: bug57579_5.5.8-debug-repeated-gdb-info.txt (text/plain), 75.92 KiB.
[21 Oct 2010 2:51]
Shane Bester
more 5.5.8 debug of another hang infos from latest build
Attachment: bug57579_mysql-5.5-innodb-revno3192-gdb-debug.txt (text/plain), 135.98 KiB.
[24 Oct 2010 5:35]
Shane Bester
Marko, 4 threads of *this* zlibdml on 5.5 hangs in a few minutes. let me know if you need more details??
Attachment: zlibdml.php (, text), 7.07 KiB.
