Merge pull request #8649 from blockscout/vb-set-max-polling-time

Set max 30sec JSON RPC poll frequency for realtime fetcher when WS is disabled

CHANGELOG.md

@@ -17,6 +17,7 @@
 
 ### Fixes
 
+- [#8649](https://github.com/blockscout/blockscout/pull/8649) - Set max 30sec JSON RPC poll frequency for realtime fetcher when WS is disabled
 - [#8614](https://github.com/blockscout/blockscout/pull/8614) - Disable market history cataloger fetcher when exchange rates are disabled
 - [#8572](https://github.com/blockscout/blockscout/pull/8572) - Refactor docker-compose config
 - [#8552](https://github.com/blockscout/blockscout/pull/8552) - Add CHAIN_TYPE build arg to Dockerfile

apps/indexer/lib/indexer/block/realtime/fetcher.ex

@@ -180,7 +180,7 @@ defmodule Indexer.Block.Realtime.Fetcher do
     polling_period =
       case AverageBlockTime.average_block_time() do
         {:error, :disabled} -> 2_000
-        block_time -> round(Duration.to_milliseconds(block_time) / 2)
+        block_time -> min(round(Duration.to_milliseconds(block_time) / 2), 30_000)
       end
 
     safe_polling_period = max(polling_period, @minimum_safe_polling_period)