Bug 24778

Summary:	Move from Memcached to Redis to solve L1 caching issues?
Product:	Koha	Reporter:	Kyle M Hall (khall) <kyle>
Component:	Architecture, internals, and plumbing	Assignee:	Bugs List <koha-bugs>
Status:	NEW ---	QA Contact:	Testopia <testopia>
Severity:	enhancement
Priority:	P5 - low	CC:	dcook, mtj
Version:	Main
Hardware:	All
OS:	All
Change sponsored?:	---	Patch complexity:	---
Documentation contact:		Documentation submission:
Text to go in the release notes:		Version(s) released in:
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Description Kyle M Hall (khall) 2020-03-02 17:46:54 UTC

Would it be worthwhile to switch from Memcache to Redis? Redis has pub/sub which in theory would allow all processes to listen for syspref changes and update their L1 caches if necessary.

What made me think of this is bug 23640

I have no idea if this is worth the time and effort, but it seems like it would solve the major issue we have with memcached.

Comment 1 Katrin Fischer 2024-01-06 13:52:08 UTC

This was filed almost 4 years ago - have we come to a decision about this?

Comment 2 Kyle M Hall (khall) 2024-01-09 14:53:30 UTC

(In reply to Katrin Fischer from comment #1)
> This was filed almost 4 years ago - have we come to a decision about this?

I don't think it's ever been discussed anywhere other than me filing this bug.

Comment 3 David Cook 2024-01-09 23:28:17 UTC

I don't think it would really work anyway. We need to flush the L1 caches after each request for more reasons than just sysprefs as well I believe.