Value of largeRequestsTimeout is set via --large-requests-timeout parameter when starting nimbus_beacon_node in trustedNodeSync mode.

beacon_chain/conf.nim

@@ -874,6 +874,11 @@ type
         defaultValue: false
         name: "with-deposit-snapshot" .}: bool
 
+      largeRequestsTimeout* {.
+        desc: "Timeout for large requests (in seconds)"
+        defaultValue: 120
+        name: "large-requests-timeout" .}: int
+
   ValidatorClientConf* = object
     configFile* {.
       desc: "Loads the configuration from a TOML file"

beacon_chain/nimbus_beacon_node.nim

@@ -112,6 +112,7 @@ proc doRunTrustedNodeSync(
     backfill: bool,
     reindex: bool,
     downloadDepositSnapshot: bool,
+    largeRequestsTimeout: int,
     genesisState: ref ForkedHashedBeaconState) {.async.} =
   let syncTarget =
     if stateId.isSome:
@@ -139,6 +140,7 @@ proc doRunTrustedNodeSync(
     backfill,
     reindex,
     downloadDepositSnapshot,
+    largeRequestsTimeout,
     genesisState)
 
 func getVanityLogs(stdoutKind: StdoutLogKind): VanityLogs =
@@ -791,6 +793,7 @@ proc init*(T: type BeaconNode,
         backfill = false,
         reindex = false,
         downloadDepositSnapshot = false,
+        config.largeRequestsTimeout,
         genesisState)
 
   if config.finalizedCheckpointBlock.isSome:
@@ -2560,6 +2563,7 @@ proc handleStartUpCmd(config: var BeaconNodeConf) {.raises: [CatchableError].} =
       config.backfillBlocks,
       config.reindex,
       config.downloadDepositSnapshot,
+      config.largeRequestsTimeout,
       genesisState)
     db.close()
 

beacon_chain/trusted_node_sync.nim

@@ -21,8 +21,8 @@ import
 from presto import RestDecodingError
 
 const
-  largeRequestsTimeout = 120.seconds # Downloading large items such as states.
   smallRequestsTimeout = 30.seconds # Downloading smaller items such as blocks and deposit snapshots.
+# largeRequestsTimeout # Downloading large items such as states. The value is set via the --large-requests-timeout parameter.
 
 proc fetchDepositSnapshot(
     client: RestClientRef
@@ -78,13 +78,14 @@ proc doTrustedNodeSync*(
     backfill: bool,
     reindex: bool,
     downloadDepositSnapshot: bool,
+    largeRequestsTimeout: int,
     genesisState: ref ForkedHashedBeaconState = nil) {.async.} =
   logScope:
     restUrl
     syncTarget
 
   notice "Starting trusted node sync",
-    databaseDir, backfill, reindex
+    databaseDir, backfill, reindex, largeRequestsTimeout
 
   var
     client = createNewRestClient(restUrl).valueOr:
@@ -145,7 +146,7 @@ proc doTrustedNodeSync*(
           try:
             awaitWithTimeout(
                 client.getStateV2(StateIdent.init(StateIdentType.Genesis), cfg),
-                largeRequestsTimeout):
+                largeRequestsTimeout.seconds):
               info "Attempt to download genesis state timed out"
               # https://github.com/nim-lang/Nim/issues/22180
               (ref ForkedHashedBeaconState)(nil)
@@ -336,7 +337,7 @@ proc doTrustedNodeSync*(
             StateIdent.init(tmp.slot.epoch().start_slot)
           else:
             tmp
-        awaitWithTimeout(client.getStateV2(id, cfg), largeRequestsTimeout):
+        awaitWithTimeout(client.getStateV2(id, cfg), largeRequestsTimeout.seconds):
           error "Attempt to download checkpoint state timed out"
           quit 1
       except CatchableError as exc: