slow expire with buffindexed

[Igor Timkin]

Simon Lyall writes:
> Currently I have 10867473 lines in history, 12605786 overview data stored

It's normal. Overview records == history articles * crosspost_ratio.

> however the overview expire is taking at least 12 hours or more. Watching

How match disk spindels you have ? For 3 overview disks and 7,000,000+
overview records overview expire run ~4.5 hours.