check if ets table exist

6 years ago · 12f1b200b3
parent 1068c5f775
commit 12f1b200b3
1 changed files with 9 additions and 7 deletions
--- a/apps/explorer/lib/explorer/chain/block_number_cache.ex
+++ b/apps/explorer/lib/explorer/chain/block_number_cache.ex
@ -13,15 +13,17 @@ defmodule Explorer.Chain.BlockNumberCache do

  @spec setup(Keyword.t()) :: :ok
  def setup(opts \\ []) do
-    :ets.new(@tab, [
-      :set,
-      :named_table,
-      :public,
-      write_concurrency: true
-    ])
+    if :ets.whereis(@tab) == :undefined do
+      :ets.new(@tab, [
+        :set,
+        :named_table,
+        :public,
+        write_concurrency: true
+      ])
+    end

-    update_cache()
    setup_opts(opts)
+    update_cache()

    :ok
  end