Improve `/tabs-counters` and add cache

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Features
 
+- [#8512](https://github.com/blockscout/blockscout/pull/8512) - Add caching and improve `/tabs-counters` performance
 - [#8472](https://github.com/blockscout/blockscout/pull/8472) - Integrate `/api/v2/bytecodes/sources:search-all` of `eth_bytecode_db`
 - [#8589](https://github.com/blockscout/blockscout/pull/8589) - DefiLlama TVL source
 - [#8544](https://github.com/blockscout/blockscout/pull/8544) - Fix `nil` `"structLogs"`

apps/block_scout_web/lib/block_scout_web/controllers/api/v2/address_controller.ex

@@ -414,8 +414,8 @@ defmodule BlockScoutWeb.API.V2.AddressController do
     with {:format, {:ok, address_hash}} <- {:format, Chain.string_to_address_hash(address_hash_string)},
          {:ok, false} <- AccessHelper.restricted_access?(address_hash_string, params),
          {:not_found, {:ok, _address}} <- {:not_found, Chain.hash_to_address(address_hash, @api_true, false)} do
-      {validations, transactions, token_transfers, token_balances, logs, withdrawals, internal_txs, coin_balances} =
-        Counters.address_limited_counters(address_hash_string, @api_true)
+      {validations, transactions, token_transfers, token_balances, logs, withdrawals, internal_txs} =
+        Counters.address_limited_counters(address_hash, @api_true)
 
       conn
       |> put_status(200)
@@ -426,8 +426,7 @@ defmodule BlockScoutWeb.API.V2.AddressController do
         token_balances_count: token_balances,
         logs_count: logs,
         withdrawals_count: withdrawals,
-        internal_txs_count: internal_txs,
-        coin_balances_count: coin_balances
+        internal_txs_count: internal_txs
       })
     end
   end

apps/block_scout_web/test/block_scout_web/controllers/api/v2/address_controller_test.exs

@@ -1670,6 +1670,239 @@ defmodule BlockScoutWeb.API.V2.AddressControllerTest do
     end
   end
 
+  describe "/addresses/{address_hash}/tabs-counters" do
+    test "get 404 on non existing address", %{conn: conn} do
+      address = build(:address)
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{"message" => "Not found"} = json_response(request, 404)
+    end
+
+    test "get 422 on invalid address", %{conn: conn} do
+      request = get(conn, "/api/v2/addresses/0x/tabs-counters")
+
+      assert %{"message" => "Invalid parameter(s)"} = json_response(request, 422)
+    end
+
+    test "get counters with 0s", %{conn: conn} do
+      address = insert(:address)
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{
+               "validations_count" => 0,
+               "transactions_count" => 0,
+               "token_transfers_count" => 0,
+               "token_balances_count" => 0,
+               "logs_count" => 0,
+               "withdrawals_count" => 0,
+               "internal_txs_count" => 0
+             } = json_response(request, 200)
+    end
+
+    test "get counters and check that cache works", %{conn: conn} do
+      address = insert(:address, withdrawals: insert_list(60, :withdrawal))
+
+      insert(:transaction, from_address: address) |> with_block()
+      insert(:transaction, to_address: address) |> with_block()
+      another_tx = insert(:transaction) |> with_block()
+
+      insert(:token_transfer,
+        from_address: address,
+        transaction: another_tx,
+        block: another_tx.block,
+        block_number: another_tx.block_number
+      )
+
+      insert(:token_transfer,
+        to_address: address,
+        transaction: another_tx,
+        block: another_tx.block,
+        block_number: another_tx.block_number
+      )
+
+      insert(:block, miner: address)
+
+      tx =
+        :transaction
+        |> insert()
+        |> with_block()
+
+      for x <- 1..2 do
+        insert(:internal_transaction,
+          transaction: tx,
+          index: x,
+          block_number: tx.block_number,
+          transaction_index: tx.index,
+          block_hash: tx.block_hash,
+          block_index: x,
+          from_address: address
+        )
+      end
+
+      for _ <- 0..60 do
+        insert(:address_current_token_balance_with_token_id, address: address)
+      end
+
+      for x <- 0..60 do
+        tx =
+          :transaction
+          |> insert()
+          |> with_block()
+
+        insert(:log,
+          transaction: tx,
+          index: x,
+          block: tx.block,
+          block_number: tx.block_number,
+          address: address
+        )
+      end
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{
+               "validations_count" => 1,
+               "transactions_count" => 2,
+               "token_transfers_count" => 2,
+               "token_balances_count" => 51,
+               "logs_count" => 51,
+               "withdrawals_count" => 51,
+               "internal_txs_count" => 2
+             } = json_response(request, 200)
+
+      for x <- 3..4 do
+        insert(:internal_transaction,
+          transaction: tx,
+          index: x,
+          block_number: tx.block_number,
+          transaction_index: tx.index,
+          block_hash: tx.block_hash,
+          block_index: x,
+          from_address: address
+        )
+      end
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{
+               "validations_count" => 1,
+               "transactions_count" => 2,
+               "token_transfers_count" => 2,
+               "token_balances_count" => 51,
+               "logs_count" => 51,
+               "withdrawals_count" => 51,
+               "internal_txs_count" => 2
+             } = json_response(request, 200)
+    end
+
+    test "check counters cache ttl", %{conn: conn} do
+      address = insert(:address, withdrawals: insert_list(60, :withdrawal))
+
+      insert(:transaction, from_address: address) |> with_block()
+      insert(:transaction, to_address: address) |> with_block()
+      another_tx = insert(:transaction) |> with_block()
+
+      insert(:token_transfer,
+        from_address: address,
+        transaction: another_tx,
+        block: another_tx.block,
+        block_number: another_tx.block_number
+      )
+
+      insert(:token_transfer,
+        to_address: address,
+        transaction: another_tx,
+        block: another_tx.block,
+        block_number: another_tx.block_number
+      )
+
+      insert(:block, miner: address)
+
+      tx =
+        :transaction
+        |> insert()
+        |> with_block()
+
+      for x <- 1..2 do
+        insert(:internal_transaction,
+          transaction: tx,
+          index: x,
+          block_number: tx.block_number,
+          transaction_index: tx.index,
+          block_hash: tx.block_hash,
+          block_index: x,
+          from_address: address
+        )
+      end
+
+      for _ <- 0..60 do
+        insert(:address_current_token_balance_with_token_id, address: address)
+      end
+
+      for x <- 0..60 do
+        tx =
+          :transaction
+          |> insert()
+          |> with_block()
+
+        insert(:log,
+          transaction: tx,
+          index: x,
+          block: tx.block,
+          block_number: tx.block_number,
+          address: address
+        )
+      end
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{
+               "validations_count" => 1,
+               "transactions_count" => 2,
+               "token_transfers_count" => 2,
+               "token_balances_count" => 51,
+               "logs_count" => 51,
+               "withdrawals_count" => 51,
+               "internal_txs_count" => 2
+             } = json_response(request, 200)
+
+      old_env = Application.get_env(:explorer, Explorer.Chain.Cache.AddressesTabsCounters)
+      Application.put_env(:explorer, Explorer.Chain.Cache.AddressesTabsCounters, ttl: 200)
+      :timer.sleep(200)
+
+      for x <- 3..4 do
+        insert(:internal_transaction,
+          transaction: tx,
+          index: x,
+          block_number: tx.block_number,
+          transaction_index: tx.index,
+          block_hash: tx.block_hash,
+          block_index: x,
+          from_address: address
+        )
+      end
+
+      insert(:transaction, from_address: address) |> with_block()
+      insert(:transaction, to_address: address) |> with_block()
+
+      request = get(conn, "/api/v2/addresses/#{address.hash}/tabs-counters")
+
+      assert %{
+               "validations_count" => 1,
+               "transactions_count" => 4,
+               "token_transfers_count" => 2,
+               "token_balances_count" => 51,
+               "logs_count" => 51,
+               "withdrawals_count" => 51,
+               "internal_txs_count" => 4
+             } = json_response(request, 200)
+
+      Application.put_env(:explorer, Explorer.Chain.Cache.AddressesTabsCounters, old_env)
+    end
+  end
+
   defp compare_item(%Address{} = address, json) do
     assert Address.checksum(address.hash) == json["hash"]
     assert to_string(address.nonce + 1) == json["tx_count"]

apps/explorer/lib/explorer/application.ex

@@ -9,6 +9,7 @@ defmodule Explorer.Application do
 
   alias Explorer.Chain.Cache.{
     Accounts,
+    AddressesTabsCounters,
     AddressSum,
     AddressSumMinusBurnt,
     Block,
@@ -77,6 +78,7 @@ defmodule Explorer.Application do
       Transactions,
       TransactionsApiV2,
       Uncles,
+      AddressesTabsCounters,
       con_cache_child_spec(MarketHistoryCache.cache_name()),
       con_cache_child_spec(RSK.cache_name(), ttl_check_interval: :timer.minutes(1), global_ttl: :timer.minutes(30)),
       {Redix, redix_opts()},

apps/explorer/lib/explorer/chain/address/counters.ex

@@ -2,7 +2,7 @@ defmodule Explorer.Chain.Address.Counters do
   @moduledoc """
     Functions related to Explorer.Chain.Address counters
   """
-  import Ecto.Query, only: [from: 2, limit: 2, select: 3, subquery: 1, union: 2, where: 3]
+  import Ecto.Query, only: [from: 2, limit: 2, select: 3, union: 2, where: 3]
 
   import Explorer.Chain,
     only: [select_repo: 1, wrapped_union_subquery: 1]
@@ -19,7 +19,6 @@ defmodule Explorer.Chain.Address.Counters do
 
   alias Explorer.Chain.{
     Address,
-    Address.CoinBalance,
     Address.CurrentTokenBalance,
     Block,
     Hash,
@@ -30,10 +29,17 @@ defmodule Explorer.Chain.Address.Counters do
     Withdrawal
   }
 
+  alias Explorer.Chain.Cache.AddressesTabsCounters
   alias Explorer.Chain.Cache.Helper, as: CacheHelper
 
   require Logger
 
+  @typep counter :: non_neg_integer() | nil
+
+  @counters_limit 51
+  @types [:validations, :txs, :token_transfers, :token_balances, :logs, :withdrawals, :internal_txs]
+  @txs_types [:txs_from, :txs_to, :txs_contract]
+
   defp address_hash_to_logs_query(address_hash) do
     from(l in Log, where: l.address_hash == ^address_hash)
   end
@@ -50,22 +56,6 @@ defmodule Explorer.Chain.Address.Counters do
     select_repo(options).exists?(address_hash_to_logs_query(address_hash))
   end
 
-  defp address_hash_to_coin_balances(address_hash) do
-    query =
-      from(
-        cb in CoinBalance,
-        where: cb.address_hash == ^address_hash,
-        where: not is_nil(cb.value),
-        select_merge: %{
-          delta: fragment("? - coalesce(lead(?, 1) over (order by ? desc), 0)", cb.value, cb.value, cb.block_number)
-        }
-      )
-
-    from(balance in subquery(query),
-      where: balance.delta != 0
-    )
-  end
-
   def check_if_token_transfers_at_address(address_hash, options \\ []) do
     select_repo(options).exists?(from(tt in TokenTransfer, where: tt.from_address_hash == ^address_hash)) ||
       select_repo(options).exists?(from(tt in TokenTransfer, where: tt.to_address_hash == ^address_hash))
@@ -255,6 +245,39 @@ defmodule Explorer.Chain.Address.Counters do
     end
   end
 
+  def address_hash_to_internal_txs_limited_count_query(address_hash) do
+    query_to_address_hash_wrapped =
+      InternalTransaction
+      |> InternalTransaction.where_nonpending_block()
+      |> InternalTransaction.where_address_fields_match(address_hash, :to_address_hash)
+      |> InternalTransaction.where_is_different_from_parent_transaction()
+      |> limit(@counters_limit)
+      |> wrapped_union_subquery()
+
+    query_from_address_hash_wrapped =
+      InternalTransaction
+      |> InternalTransaction.where_nonpending_block()
+      |> InternalTransaction.where_address_fields_match(address_hash, :from_address_hash)
+      |> InternalTransaction.where_is_different_from_parent_transaction()
+      |> limit(@counters_limit)
+      |> wrapped_union_subquery()
+
+    query_created_contract_address_hash_wrapped =
+      InternalTransaction
+      |> InternalTransaction.where_nonpending_block()
+      |> InternalTransaction.where_address_fields_match(address_hash, :created_contract_address_hash)
+      |> InternalTransaction.where_is_different_from_parent_transaction()
+      |> limit(@counters_limit)
+      |> wrapped_union_subquery()
+
+    query_to_address_hash_wrapped
+    |> union(^query_from_address_hash_wrapped)
+    |> union(^query_created_contract_address_hash_wrapped)
+    |> wrapped_union_subquery()
+    |> InternalTransaction.where_is_different_from_parent_transaction()
+    |> limit(@counters_limit)
+  end
+
   def address_counters(address, options \\ []) do
     validation_count_task =
       Task.async(fn ->
@@ -304,28 +327,33 @@ defmodule Explorer.Chain.Address.Counters do
     AddressTransactionsGasUsageCounter.fetch(address)
   end
 
-  @counters_limit 51
-
+  @spec address_limited_counters(Hash.t(), Keyword.t()) ::
+          {counter(), counter(), counter(), counter(), counter(), counter(), counter()}
   def address_limited_counters(address_hash, options) do
+    cached_counters =
+      Enum.reduce(@types, %{}, fn type, acc ->
+        case AddressesTabsCounters.get_counter(type, address_hash) do
+          {_datetime, counter, status} ->
+            Map.put(acc, type, {status, counter})
+
+          _ ->
+            acc
+        end
+      end)
+
     start = Time.utc_now()
 
     validations_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> address_hash_to_validated_blocks_query()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for validations_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
-
-        result
-      end)
+      configure_task(
+        :validations,
+        cached_counters,
+        address_hash_to_validated_blocks_query(address_hash),
+        address_hash,
+        options
+      )
 
     transactions_from_count_task =
-      Task.async(fn ->
+      run_or_ignore(cached_counters[:txs], :txs_from, address_hash, fn ->
         result =
           Transaction
           |> where([t], t.from_address_hash == ^address_hash)
@@ -338,11 +366,14 @@ defmodule Explorer.Chain.Address.Counters do
           "Time consumed for transactions_from_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
         )
 
-        result
+        AddressesTabsCounters.save_txs_counter_progress(address_hash, %{txs_types: [:txs_from], txs_from: result})
+        AddressesTabsCounters.drop_task(:txs_from, address_hash)
+
+        {:txs_from, result}
       end)
 
     transactions_to_count_task =
-      Task.async(fn ->
+      run_or_ignore(cached_counters[:txs], :txs_to, address_hash, fn ->
         result =
           Transaction
           |> where([t], t.to_address_hash == ^address_hash)
@@ -355,11 +386,14 @@ defmodule Explorer.Chain.Address.Counters do
           "Time consumed for transactions_to_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
         )
 
-        result
+        AddressesTabsCounters.save_txs_counter_progress(address_hash, %{txs_types: [:txs_to], txs_to: result})
+        AddressesTabsCounters.drop_task(:txs_to, address_hash)
+
+        {:txs_to, result}
       end)
 
     transactions_created_contract_count_task =
-      Task.async(fn ->
+      run_or_ignore(cached_counters[:txs], :txs_contract, address_hash, fn ->
         result =
           Transaction
           |> where([t], t.created_contract_address_hash == ^address_hash)
@@ -372,172 +406,166 @@ defmodule Explorer.Chain.Address.Counters do
           "Time consumed for transactions_created_contract_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
         )
 
-        result
-      end)
-
-    token_transfer_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> address_to_token_transfer_count_query()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
+        AddressesTabsCounters.save_txs_counter_progress(address_hash, %{
+          txs_types: [:txs_contract],
+          txs_contract: result
+        })
 
-        Logger.info(
-          "Time consumed for token_transfer_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
+        AddressesTabsCounters.drop_task(:txs_contract, address_hash)
 
-        result
+        {:txs_contract, result}
       end)
 
-    token_balances_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> address_hash_to_token_balances_query()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for token_balances_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
+    token_transfers_count_task =
+      configure_task(
+        :token_transfers,
+        cached_counters,
+        address_to_token_transfer_count_query(address_hash),
+        address_hash,
+        options
+      )
 
-        result
-      end)
+    token_balances_count_task =
+      configure_task(
+        :token_balances,
+        cached_counters,
+        address_hash_to_token_balances_query(address_hash),
+        address_hash,
+        options
+      )
 
     logs_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> address_hash_to_logs_query()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for logs_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
-
-        result
-      end)
+      configure_task(
+        :logs,
+        cached_counters,
+        address_hash_to_logs_query(address_hash),
+        address_hash,
+        options
+      )
 
     withdrawals_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> Withdrawal.address_hash_to_withdrawals_unordered_query()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for withdrawals_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
-
-        result
-      end)
+      configure_task(
+        :withdrawals,
+        cached_counters,
+        Withdrawal.address_hash_to_withdrawals_unordered_query(address_hash),
+        address_hash,
+        options
+      )
 
     internal_txs_count_task =
-      Task.async(fn ->
-        query_to_address_hash_wrapped =
-          InternalTransaction
-          |> InternalTransaction.where_nonpending_block()
-          |> InternalTransaction.where_address_fields_match(address_hash, :to_address_hash)
-          |> InternalTransaction.where_is_different_from_parent_transaction()
-          |> limit(@counters_limit)
-          |> wrapped_union_subquery()
-
-        query_from_address_hash_wrapped =
-          InternalTransaction
-          |> InternalTransaction.where_nonpending_block()
-          |> InternalTransaction.where_address_fields_match(address_hash, :from_address_hash)
-          |> InternalTransaction.where_is_different_from_parent_transaction()
-          |> limit(@counters_limit)
-          |> wrapped_union_subquery()
-
-        query_created_contract_address_hash_wrapped =
-          InternalTransaction
-          |> InternalTransaction.where_nonpending_block()
-          |> InternalTransaction.where_address_fields_match(address_hash, :created_contract_address_hash)
-          |> InternalTransaction.where_is_different_from_parent_transaction()
-          |> limit(@counters_limit)
-          |> wrapped_union_subquery()
-
-        result =
-          query_to_address_hash_wrapped
-          |> union(^query_from_address_hash_wrapped)
-          |> union(^query_created_contract_address_hash_wrapped)
-          |> wrapped_union_subquery()
-          |> InternalTransaction.where_is_different_from_parent_transaction()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for internal_txs_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
-
-        result
-      end)
-
-    coin_balances_count_task =
-      Task.async(fn ->
-        result =
-          address_hash
-          |> address_hash_to_coin_balances()
-          |> limit(@counters_limit)
-          |> select_repo(options).aggregate(:count)
-
-        Logger.info(
-          "Time consumed for coin_balances_count_task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
-        )
-
-        result
-      end)
+      configure_task(
+        :internal_txs,
+        cached_counters,
+        address_hash_to_internal_txs_limited_count_query(address_hash),
+        address_hash,
+        options
+      )
 
-    {validations, txs_from, txs_to, txs_contract, token_transfers, token_balances, logs, withdrawals, internal_txs,
-     coin_balances} =
+    map =
       [
         validations_count_task,
         transactions_from_count_task,
         transactions_to_count_task,
         transactions_created_contract_count_task,
-        token_transfer_count_task,
+        token_transfers_count_task,
         token_balances_count_task,
         logs_count_task,
         withdrawals_count_task,
-        internal_txs_count_task,
-        coin_balances_count_task
+        internal_txs_count_task
       ]
-      |> Task.yield_many(:timer.seconds(30))
-      |> Enum.map(fn {_task, res} ->
+      |> Enum.reject(&is_nil/1)
+      |> Task.yield_many(:timer.seconds(1))
+      |> Enum.reduce(Map.merge(prepare_cache_values(cached_counters), %{txs_types: [], txs_hashes: []}), fn {task, res},
+                                                                                                            acc ->
         case res do
-          {:ok, result} ->
-            result
+          {:ok, {txs_type, txs_hashes}} when txs_type in @txs_types ->
+            acc
+            |> (&Map.put(&1, :txs_types, [txs_type | &1[:txs_types] || []])).()
+            |> (&Map.put(&1, :txs_hashes, &1[:txs_hashes] ++ txs_hashes)).()
+
+          {:ok, {type, counter}} ->
+            Map.put(acc, type, counter)
 
           {:exit, reason} ->
             Logger.warn(fn ->
               [
-                "Query fetching address counters terminated: #{inspect(reason)}"
+                "Query fetching address counters for #{address_hash} terminated: #{inspect(reason)}"
               ]
             end)
 
-            nil
+            acc
 
           nil ->
             Logger.warn(fn ->
               [
-                "Query fetching address counters timed out."
+                "Query fetching address counters for #{address_hash} timed out."
               ]
             end)
 
-            nil
+            Task.ignore(task)
+
+            acc
         end
       end)
-      |> List.to_tuple()
+      |> process_txs_counter()
+
+    {map[:validations], map[:txs], map[:token_transfers], map[:token_balances], map[:logs], map[:withdrawals],
+     map[:internal_txs]}
+  end
+
+  defp run_or_ignore({ok, _counter}, _type, _address_hash, _fun) when ok in [:up_to_date, :limit_value], do: nil
+
+  defp run_or_ignore(_, type, address_hash, fun) do
+    if !AddressesTabsCounters.get_task(type, address_hash) do
+      AddressesTabsCounters.set_task(type, address_hash)
+
+      Task.async(fun)
+    end
+  end
+
+  defp configure_task(counter_type, cache, query, address_hash, options) do
+    address_hash = to_string(address_hash)
+    start = Time.utc_now()
+
+    run_or_ignore(cache[counter_type], counter_type, address_hash, fn ->
+      result =
+        query
+        |> limit(@counters_limit)
+        |> select_repo(options).aggregate(:count)
 
-    {validations,
-     (sanitize_list(txs_from) ++ sanitize_list(txs_to) ++ sanitize_list(txs_contract)) |> Enum.dedup() |> Enum.count(),
-     token_transfers, token_balances, logs, withdrawals, internal_txs, coin_balances}
+      Logger.info(
+        "Time consumed for #{counter_type} counter task for #{address_hash} is #{Time.diff(Time.utc_now(), start, :millisecond)}ms"
+      )
+
+      AddressesTabsCounters.set_counter(counter_type, address_hash, result)
+      AddressesTabsCounters.drop_task(counter_type, address_hash)
+
+      {counter_type, result}
+    end)
+  end
+
+  defp process_txs_counter(%{txs_types: [_ | _] = txs_types, txs_hashes: hashes} = map) do
+    counter = hashes |> Enum.uniq() |> Enum.count() |> min(@counters_limit)
+
+    if Enum.count(txs_types) == 3 || counter == @counters_limit do
+      map |> Map.put(:txs, counter)
+    else
+      map
+    end
+  end
+
+  defp process_txs_counter(map), do: map
+
+  defp prepare_cache_values(cached_counters) do
+    Enum.reduce(cached_counters, %{}, fn
+      {k, {_, counter}}, acc ->
+        Map.put(acc, k, counter)
+
+      {k, v}, acc ->
+        Map.put(acc, k, v)
+    end)
   end
 
-  defp sanitize_list(nil), do: []
-  defp sanitize_list(other), do: other
+  def txs_types, do: @txs_types
+  def counters_limit, do: @counters_limit
 end

apps/explorer/lib/explorer/chain/cache/addresses_tabs_counters.ex

@@ -0,0 +1,131 @@
+defmodule Explorer.Chain.Cache.AddressesTabsCounters do
+  @moduledoc """
+    Cache for tabs counters on address
+  """
+
+  use GenServer
+
+  import Explorer.Counters.Helper, only: [fetch_from_cache: 3]
+
+  alias Explorer.Chain.Address.Counters
+
+  @cache_name :addresses_tabs_counters
+
+  @typep counter_type :: :validations | :txs | :token_transfers | :token_balances | :logs | :withdrawals | :internal_txs
+  @typep response_status :: :limit_value | :stale | :up_to_date
+
+  @spec get_counter(counter_type, String.t()) :: {DateTime.t(), non_neg_integer(), response_status} | nil
+  def get_counter(counter_type, address_hash) do
+    address_hash |> cache_key(counter_type) |> fetch_from_cache(@cache_name, nil) |> check_staleness()
+  end
+
+  @spec set_counter(counter_type, String.t(), non_neg_integer()) :: :ok
+  def set_counter(counter_type, address_hash, counter, need_to_modify_state? \\ true) do
+    :ets.insert(@cache_name, {cache_key(address_hash, counter_type), {DateTime.utc_now(), counter}})
+    if need_to_modify_state?, do: ignore_txs(counter_type, address_hash)
+
+    :ok
+  end
+
+  def set_task(counter_type, address_hash) do
+    :ets.insert(@cache_name, {task_cache_key(address_hash, counter_type), true})
+  end
+
+  def drop_task(counter_type, address_hash) do
+    :ets.delete(@cache_name, task_cache_key(address_hash, counter_type))
+  end
+
+  def get_task(counter_type, address_hash) do
+    address_hash |> task_cache_key(counter_type) |> fetch_from_cache(@cache_name, nil)
+  end
+
+  def ignore_txs(:txs, address_hash), do: GenServer.cast(__MODULE__, {:ignore_txs, address_hash})
+  def ignore_txs(_counter_type, _address_hash), do: :ignore
+
+  def save_txs_counter_progress(address_hash, results) do
+    GenServer.cast(__MODULE__, {:set_txs_state, address_hash, results})
+  end
+
+  def start_link(_) do
+    GenServer.start_link(__MODULE__, :ok, name: __MODULE__)
+  end
+
+  @impl true
+  def init(_opts) do
+    :ets.new(@cache_name, [
+      :set,
+      :named_table,
+      :public,
+      read_concurrency: true,
+      write_concurrency: true
+    ])
+
+    {:ok, %{}}
+  end
+
+  @impl true
+  def handle_cast({:ignore_txs, address_hash}, state) do
+    {:noreply, Map.put(state, lowercased_string(address_hash), {:updated, DateTime.utc_now()})}
+  end
+
+  @impl true
+  def handle_cast({:set_txs_state, address_hash, %{txs_types: txs_types} = results}, state) do
+    address_hash = lowercased_string(address_hash)
+
+    if is_ignored?(state[address_hash]) do
+      {:noreply, state}
+    else
+      address_state =
+        txs_types
+        |> Enum.reduce(state[address_hash] || %{}, fn tx_type, acc ->
+          Map.put(acc, tx_type, results[tx_type])
+        end)
+        |> (&Map.put(&1, :txs_types, (txs_types ++ (&1[:txs_types] || [])) |> Enum.uniq())).()
+
+      counter =
+        Counters.txs_types()
+        |> Enum.reduce([], fn type, acc ->
+          (address_state[type] || []) ++ acc
+        end)
+        |> Enum.uniq()
+        |> Enum.count()
+        |> min(Counters.counters_limit())
+
+      if counter == Counters.counters_limit() || Enum.count(address_state[:txs_types]) == 3 do
+        set_counter(:txs, address_hash, counter, false)
+        {:noreply, Map.put(state, address_hash, {:updated, DateTime.utc_now()})}
+      else
+        {:noreply, Map.put(state, address_hash, address_state)}
+      end
+    end
+  end
+
+  defp is_ignored?({:updated, datetime}), do: is_up_to_date?(datetime, ttl())
+  defp is_ignored?(_), do: false
+
+  def check_staleness(nil), do: nil
+  def check_staleness({datetime, counter}) when counter > 50, do: {datetime, counter, :limit_value}
+
+  def check_staleness({datetime, counter}) do
+    status =
+      if is_up_to_date?(datetime, ttl()) do
+        :up_to_date
+      else
+        :stale
+      end
+
+    {datetime, counter, status}
+  end
+
+  defp is_up_to_date?(datetime, ttl) do
+    datetime
+    |> DateTime.add(ttl, :millisecond)
+    |> DateTime.compare(DateTime.utc_now()) != :lt
+  end
+
+  defp ttl, do: Application.get_env(:explorer, Explorer.Chain.Cache.AddressesTabsCounters)[:ttl]
+  defp lowercased_string(str), do: str |> to_string() |> String.downcase()
+
+  defp cache_key(address_hash, counter_type), do: {lowercased_string(address_hash), counter_type}
+  defp task_cache_key(address_hash, counter_type), do: {:task, lowercased_string(address_hash), counter_type}
+end

apps/explorer/lib/explorer/counters/helper.ex

@@ -16,13 +16,13 @@ defmodule Explorer.Counters.Helper do
     DateTime.to_unix(utc_now, :millisecond)
   end
 
-  def fetch_from_cache(key, cache_name) do
+  def fetch_from_cache(key, cache_name, default \\ 0) do
     case :ets.lookup(cache_name, key) do
       [{_, value}] ->
         value
 
       [] ->
-        0
+        default
     end
   end
 

config/runtime.exs

@@ -429,6 +429,9 @@ config :explorer, Explorer.Chain.Transaction,
   rootstock_remasc_address: System.get_env("ROOTSTOCK_REMASC_ADDRESS"),
   rootstock_bridge_address: System.get_env("ROOTSTOCK_BRIDGE_ADDRESS")
 
+config :explorer, Explorer.Chain.Cache.AddressesTabsCounters,
+  ttl: ConfigHelper.parse_time_env_var("ADDRESSES_TABS_COUNTERS_TTL", "10m")
+
 ###############
 ### Indexer ###
 ###############