@cryptotaxi247 / netdata-1 / commits / 5364e24ea

feat(topology): add role field to presentation actor types (#22217)

The UI needs to know which actor types are first-class (always render at full fidelity) versus which are summarizable (can be hidden or clustered when the graph is dense). The set of actor types differs per topology source (network-viewer uses self/process/endpoint; SNMP uses device/router/.../endpoint; streaming uses parent/child/vnode/stale), so the frontend cannot string-match on actor_type to make that classification safely. Add a new string field "role" on each presentation.actor_types entry: - "actor" first-class, always rendered at full fidelity - "endpoint" summarizable at scale (hidden or grouped per actor) Absent role is treated as "actor" by the frontend, keeping older agents compatible. - network-viewer.plugin: self/process -> actor, endpoint -> endpoint - function-streaming: parent/child/vnode/stale -> actor Required by the UI topology performance optimization work, so the frontend can hide endpoints on dense graphs without hard-coding the list of summarizable actor types.

Costa Tsaousis committed Apr 16, 2026 at 23:01 UTC 5364e24ea34a825158dec0803d108d77988f0f4c

2 files changed +7

src/collectors/network-viewer.plugin/network-viewer.c

@@ -1715,6 +1715,7 @@ static void topology_write_presentation(BUFFER *wb) {

1715 buffer_json_member_add_string(wb, "label", "This host");

1716 buffer_json_member_add_string(wb, "color_slot", "self");

1717 buffer_json_member_add_boolean(wb, "border", true);

1718 + buffer_json_member_add_string(wb, "role", "actor");

1719 buffer_json_member_add_boolean(wb, "size_by_links", true);

1720

1721 buffer_json_member_add_array(wb, "summary_fields");

@@ -1791,6 +1792,7 @@ static void topology_write_presentation(BUFFER *wb) {

1792 buffer_json_member_add_string(wb, "label", "Process");

1793 buffer_json_member_add_string(wb, "color_slot", "primary");

1794 buffer_json_member_add_boolean(wb, "border", true);

1795 + buffer_json_member_add_string(wb, "role", "actor");

1796 buffer_json_member_add_boolean(wb, "size_by_links", true);

1797 buffer_json_member_add_boolean(wb, "show_port_bullets", true);

1798

@@ -1925,6 +1927,7 @@ static void topology_write_presentation(BUFFER *wb) {

1927 buffer_json_member_add_string(wb, "label", "Endpoint");

1928 buffer_json_member_add_string(wb, "color_slot", "derived");

1929 buffer_json_member_add_boolean(wb, "border", true);

1930 + buffer_json_member_add_string(wb, "role", "endpoint");

1931

1932 buffer_json_member_add_array(wb, "summary_fields");

1933 {

src/web/api/functions/function-streaming.c

@@ -566,6 +566,7 @@ int function_streaming_topology(BUFFER *wb, const char *function, BUFFER *payloa

566 buffer_json_member_add_string(wb, "color_slot", "primary");

567 buffer_json_member_add_double(wb, "opacity", 1.0);

568 buffer_json_member_add_boolean(wb, "border", true);

569 + buffer_json_member_add_string(wb, "role", "actor");

570 buffer_json_member_add_boolean(wb, "size_by_links", true);

571 buffer_json_member_add_boolean(wb, "show_port_bullets", true);

572 streaming_topology_parent_presentation(wb);

@@ -578,6 +579,7 @@ int function_streaming_topology(BUFFER *wb, const char *function, BUFFER *payloa

579 buffer_json_member_add_string(wb, "color_slot", "primary");

580 buffer_json_member_add_double(wb, "opacity", 1.0);

581 buffer_json_member_add_boolean(wb, "border", false);

582 + buffer_json_member_add_string(wb, "role", "actor");

583 buffer_json_member_add_boolean(wb, "size_by_links", false);

584 buffer_json_member_add_boolean(wb, "show_port_bullets", false);

585 streaming_topology_child_presentation(wb);

@@ -590,6 +592,7 @@ int function_streaming_topology(BUFFER *wb, const char *function, BUFFER *payloa

592 buffer_json_member_add_string(wb, "color_slot", "warning");

593 buffer_json_member_add_double(wb, "opacity", 1.0);

594 buffer_json_member_add_boolean(wb, "border", false);

595 + buffer_json_member_add_string(wb, "role", "actor");

596 buffer_json_member_add_boolean(wb, "size_by_links", false);

597 buffer_json_member_add_boolean(wb, "show_port_bullets", false);

598 streaming_topology_vnode_presentation(wb);

@@ -602,6 +605,7 @@ int function_streaming_topology(BUFFER *wb, const char *function, BUFFER *payloa

605 buffer_json_member_add_string(wb, "color_slot", "dim");

606 buffer_json_member_add_double(wb, "opacity", 0.5);

607 buffer_json_member_add_boolean(wb, "border", false);

608 + buffer_json_member_add_string(wb, "role", "actor");

609 buffer_json_member_add_boolean(wb, "size_by_links", false);

610 buffer_json_member_add_boolean(wb, "show_port_bullets", false);

611 streaming_topology_stale_presentation(wb);