diff --git a/google/spanner/admin/database/v1/spanner_admin_database_gapic.yaml b/google/spanner/admin/database/v1/spanner_admin_database_gapic.yaml
index 96f81b53..71983949 100644
--- a/google/spanner/admin/database/v1/spanner_admin_database_gapic.yaml
+++ b/google/spanner/admin/database/v1/spanner_admin_database_gapic.yaml
@@ -80,7 +80,7 @@ interfaces:
     retry_params_name: default
     field_name_patterns:
       parent: instance
-    timeout_millis: 30000
+    timeout_millis: 3600000
     long_running:
       return_type: google.spanner.admin.database.v1.Database
       metadata_type: google.spanner.admin.database.v1.CreateDatabaseMetadata
@@ -115,7 +115,7 @@ interfaces:
     retry_params_name: default
     field_name_patterns:
       database: database
-    timeout_millis: 30000
+    timeout_millis: 3600000
     long_running:
       return_type: google.protobuf.Empty
       metadata_type: google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata
@@ -135,7 +135,7 @@ interfaces:
     retry_params_name: default
     field_name_patterns:
       database: database
-    timeout_millis: 30000
+    timeout_millis: 3600000
   - name: GetDatabaseDdl
     flattening:
       groups:
diff --git a/google/spanner/v1/spanner_gapic.yaml b/google/spanner/v1/spanner_gapic.yaml
index 78477d52..a09c021c 100644
--- a/google/spanner/v1/spanner_gapic.yaml
+++ b/google/spanner/v1/spanner_gapic.yaml
@@ -45,7 +45,7 @@ interfaces:
     - UNAVAILABLE
   retry_params_def:
   - name: default
-    initial_retry_delay_millis: 1000
+    initial_retry_delay_millis: 250
     retry_delay_multiplier: 1.3
     max_retry_delay_millis: 32000
     initial_rpc_timeout_millis: 60000
@@ -53,7 +53,7 @@ interfaces:
     max_rpc_timeout_millis: 60000
     total_timeout_millis: 600000
   - name: streaming
-    initial_retry_delay_millis: 1000
+    initial_retry_delay_millis: 250
     retry_delay_multiplier: 1.3
     max_retry_delay_millis: 32000
     initial_rpc_timeout_millis: 120000
@@ -61,7 +61,7 @@ interfaces:
     max_rpc_timeout_millis: 120000
     total_timeout_millis: 1200000
   - name: long_running
-    initial_retry_delay_millis: 1000
+    initial_retry_delay_millis: 250
     retry_delay_multiplier: 1.3
     max_retry_delay_millis: 32000
     initial_rpc_timeout_millis: 3600000
@@ -113,7 +113,7 @@ interfaces:
     retry_params_name: default
     field_name_patterns:
       database: database
-    timeout_millis: 30000
+    timeout_millis: 3600000
   - name: DeleteSession
     flattening:
       groups: