Change the order of delete cascade for `spiral'
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.
diff --git a/src/folsom_ets.erl b/src/folsom_ets.erl
index edd2f36..8a223c5 100644
--- a/src/folsom_ets.erl
+++ b/src/folsom_ets.erl
@@ -300,9 +300,9 @@
delete_metric(Name, spiral) ->
#spiral{tid=Tid, server=Pid} = folsom_metrics_spiral:get_value(Name),
folsom_sample_slide_server:stop(Pid),
- true = ets:delete(Tid),
ets:delete(?SPIRAL_TABLE, Name),
ets:delete(?FOLSOM_TABLE, Name),
+ ets:delete(Tid),
ok.
delete_histogram(Name, #histogram{type = uniform, sample = #uniform{reservoir = Reservoir}}) ->
