diff --git a/be/src/rpc/rpc-mgr.cc b/be/src/rpc/rpc-mgr.cc
index d723280..7e05f38 100644
--- a/be/src/rpc/rpc-mgr.cc
+++ b/be/src/rpc/rpc-mgr.cc
@@ -57,6 +57,9 @@
 // Defined in kudu/rpc/rpcz_store.cc
 DECLARE_int32(rpc_duration_too_long_ms);
 
+// Defined in kudu/rpc/transfer.cc
+DECLARE_int32(rpc_max_message_size);
+
 DEFINE_int32(num_acceptor_threads, 2,
     "Number of threads dedicated to accepting connection requests for RPC services");
 DEFINE_int32(num_reactor_threads, 0,
@@ -75,6 +78,10 @@
   // Log any RPCs which take longer than 2 minutes.
   FLAGS_rpc_duration_too_long_ms = 2 * 60 * 1000;
 
+  // IMPALA-4874: Impala requires support for messages up to 2GB. Override KRPC's default
+  //              maximum of 50MB.
+  FLAGS_rpc_max_message_size = numeric_limits<int32_t>::max();
+
   MessengerBuilder bld("impala-server");
   const scoped_refptr<MetricEntity> entity(
       METRIC_ENTITY_server.Instantiate(&registry_, "krpc-metrics"));
diff --git a/testdata/workloads/functional-query/queries/QueryTest/large_strings.test b/testdata/workloads/functional-query/queries/QueryTest/large_strings.test
index 4419953..1d930db 100644
--- a/testdata/workloads/functional-query/queries/QueryTest/large_strings.test
+++ b/testdata/workloads/functional-query/queries/QueryTest/large_strings.test
@@ -209,3 +209,20 @@
 ---- CATCH
 String length larger than allowed limit of 1 GB character data
 =====
+---- QUERY
+# IMPALA-4874: Generate a large row made up of multiple large strings to test RPC
+#              transmission. This uses hashing to make this difficult to compress,
+#              which results in a larger row batch.
+select length(group_concat(h, "!")),
+       length(group_concat(h, "-"))
+from (
+select cast(fnv_hash(concat(l_comment, 'a')) as string) as h from tpch_parquet.lineitem union all
+select cast(fnv_hash(concat(l_comment, 'b')) as string) as h from tpch_parquet.lineitem union all
+select cast(fnv_hash(concat(l_comment, 'c')) as string) as h from tpch_parquet.lineitem union all
+select cast(fnv_hash(concat(l_comment, 'd')) as string) as h from tpch_parquet.lineitem union all
+select cast(fnv_hash(concat(l_comment, 'e')) as string) as h from tpch_parquet.lineitem) a;
+---- TYPES
+INT,INT
+---- RESULTS
+611468161,611468161
+=====
\ No newline at end of file