A build script written in JavaScript because it processes the asset manifest, in a repository where everything else is PHP. The Makefile is the interface and the language…
A deploy job that anybody with write access could trigger, on a repository where write access was granted to six people for unrelated reasons. Scoping the secrets to…
Eight severity levels, used by four people with four different interpretations, producing a log where error meant nothing in particular. The column that resolved the arguments is the…
A deploy that succeeds because the files copied is a deploy that has verified nothing. Twenty seconds of retrying before giving up, and a rollback that is the…
ALGORITHM=INPLACE does not mean lock-free, and the operation that needed a table rebuild took a metadata lock at the end anyway. Specifying LOCK=NONE turns an unpleasant surprise into…
Replication lag of eleven minutes on a replica with no load, caused by a single transaction on the primary that took eleven minutes. The instant drop is the…
A stack of eleven services where four are needed by two people occasionally, started by everybody constantly. Memory is the reason: the search pair was 2.4 GB on…
High-Performance Order Storage moves orders out of the posts table, and the compatibility mode that writes to both is the part to plan around. The four queries were…