Frequent lock contention about cm_redissession HOT 2 CLOSED

With logLevel < 6 that change should have 0 effect and even with logLevel >= 6 I think the difference would be negligible. The slowest code would be the block at line 232 but that only occurs when there is lock contention so it can't itself be the initial cause of the lock contention...

I used to fret over having broken locks and such but finally just started ignoring such errors (as long as there isn't a huge sudden increase) and everything seems fine.. So what do you mean exactly when you say "a lot"?

One thing to keep in mind: The adminhtml media gallery feature generates thumbnails on the fly so if you open a folder that has a lot of images then your browser will be making many expensive requests to Magento all at once and is sure to cause lock contention. I think I edited the Magento core code on production (!!!) to close the session early after I got sick of seeing errors because of it.

from cm_redissession.

Oh, gosh—good point about logLevel. Disregard!

I’m not currently able to provide a good figure for frequency. The feature was deployed to production 8/3 but reverted on 8/7 because of other features in that same release.

I’ll take a look at this later, but largely consider it a non-issue :)

from cm_redissession.