A crash of folsom_metrics_histogram_ets leaves spirals broken.
The spiral ets table goes away, so it can not be updated, nor
can it be deleted and re-created due to the delete order of
metric table, spiral table, folsom table. Have changed the order
to be more like that of histogram so deletes will succeed in
the event of a missing spiral ets table.
A crash of
folsom_metrics_histogram_etsleaves spirals broken. The spiral ets table goes away, so it can not be updated, nor can it be deleted and re-created due to the delete order of metric table, spiral table, folsom table. Have changed the order to be more like that ofhistogramso deletes will succeed in the event of a missingspiralets table.(Addresses https://github.com/boundary/folsom/issues/55)