Bug #93961 mysqld SEGFAULT under load from several memcached plugin clients
Submitted: 17 Jan 2019 11:25 Modified: 28 May 2019 12:49
Reporter: John Daragon Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Memcached Severity:S1 (Critical)
Version:5.7.25 OS:Linux (Ubuntu Server 18.04)
Assigned to: CPU Architecture:x86 (8 core, 32GiB RAM, 100 GB SSD)

File: Maximum allowed size is 50MB.
Description:
Privacy:

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:

[23 Feb 2019 22:36] Bogdan Kecman
thread apply all bt

Attachment: thappallbt.txt (text/plain), 42.61 KiB.

[24 Feb 2019 5:09] Bogdan Kecman
thread apply all bt - after crash

Attachment: tapallbt-1.txt (text/plain), 47.24 KiB.

[24 Feb 2019 5:13] Bogdan Kecman
thread apply all bt full

Attachment: tapallbt-2.txt (text/plain), 104.66 KiB.