Hi all,
A high volume of error messages in production logs can make it hard to glance at error logs after a deployment and reason about the deployment's impact.[0] This recurring mail is part of an ongoing effort to reduce log noise.
At present I'm aware of three unresolved-but-tracked issues which are causing a fair amount of noise:
* https://phabricator.wikimedia.org/T143756 ** UnresolvedRedirectException in EntityAccessor::getEntity (scribunto) ** ~8000 occurrences today
* https://phabricator.wikimedia.org/T226751 ** PHP error "non well formed numeric value encountered" from FormatMetadata->formatCoords ** ~600 occurrences today
* https://phabricator.wikimedia.org/T239165 ** PHP Warning: count(): Parameter must be an array or an object that implements Countable in WikibaseMediaInfo ** ~120 occurrences today
As ever, help in eliminating these errors from production logs is greatly appreciated.
As a procedural note, I'm sending this early in the week due to the Thanksgiving holiday. We'll be releasing 1.35.0-wmf.8 to group 0 tomorrow (Tuesday) and then pausing there until 2019-12-04.
[0]. https://wikitech.wikimedia.org/wiki/Deployments/Holding_the_train#Logspam