Remove backends subsystem (#12146)

3 files changed, 6 insertions, 58 deletions

diff --git a/database/rrd.h b/database/rrd.h
index ba06164010..e48c646019 100644
--- a/database/rrd.h
+++ b/database/rrd.h
@@ -461,23 +461,21 @@ typedef enum rrdset_flags {
                                               // (the master data set should be the one that has the same family and is not detail)
     RRDSET_FLAG_DEBUG               = 1 << 2, // enables or disables debugging for a chart
     RRDSET_FLAG_OBSOLETE            = 1 << 3, // this is marked by the collector/module as obsolete
-    RRDSET_FLAG_EXPORTING_SEND      = 1 << 4, // if set, this chart should be sent to Prometheus web API
-    RRDSET_FLAG_EXPORTING_IGNORE    = 1 << 5, // if set, this chart should not be sent to Prometheus web API
+    RRDSET_FLAG_EXPORTING_SEND      = 1 << 4, // if set, this chart should be sent to Prometheus web API and external databases
+    RRDSET_FLAG_EXPORTING_IGNORE    = 1 << 5, // if set, this chart should not be sent to Prometheus web API and external databases
     RRDSET_FLAG_UPSTREAM_SEND       = 1 << 6, // if set, this chart should be sent upstream (streaming)
     RRDSET_FLAG_UPSTREAM_IGNORE     = 1 << 7, // if set, this chart should not be sent upstream (streaming)
     RRDSET_FLAG_UPSTREAM_EXPOSED    = 1 << 8, // if set, we have sent this chart definition to netdata parent (streaming)
     RRDSET_FLAG_STORE_FIRST         = 1 << 9, // if set, do not eliminate the first collection during interpolation
     RRDSET_FLAG_HETEROGENEOUS       = 1 << 10, // if set, the chart is not homogeneous (dimensions in it have multiple algorithms, multipliers or dividers)
     RRDSET_FLAG_HOMOGENEOUS_CHECK   = 1 << 11, // if set, the chart should be checked to determine if the dimensions are homogeneous
-    RRDSET_FLAG_HIDDEN              = 1 << 12, // if set, do not show this chart on the dashboard, but use it for backends
+    RRDSET_FLAG_HIDDEN              = 1 << 12, // if set, do not show this chart on the dashboard, but use it for exporting
     RRDSET_FLAG_SYNC_CLOCK          = 1 << 13, // if set, microseconds on next data collection will be ignored (the chart will be synced to now)
     RRDSET_FLAG_OBSOLETE_DIMENSIONS = 1 << 14, // this is marked by the collector/module when a chart has obsolete dimensions
     // No new values have been collected for this chart since agent start or it was marked RRDSET_FLAG_OBSOLETE at
     // least rrdset_free_obsolete_time seconds ago.
     RRDSET_FLAG_ARCHIVED            = 1 << 15,
     RRDSET_FLAG_ACLK                = 1 << 16,
-    RRDSET_FLAG_BACKEND_SEND        = 1 << 17, // if set, this chart should be sent to backends
-    RRDSET_FLAG_BACKEND_IGNORE      = 1 << 18 // if set, this chart should not be sent to backends
 } RRDSET_FLAGS;
 
 #ifdef HAVE_C___ATOMIC
@@ -632,8 +630,8 @@ typedef enum rrdhost_flags {
     RRDHOST_FLAG_ORPHAN                 = 1 << 0, // this host is orphan (not receiving data)
     RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS = 1 << 1, // delete files of obsolete charts
     RRDHOST_FLAG_DELETE_ORPHAN_HOST     = 1 << 2, // delete the entire host when orphan
-    RRDHOST_FLAG_BACKEND_SEND           = 1 << 3, // send it to backends
-    RRDHOST_FLAG_BACKEND_DONT_SEND      = 1 << 4, // don't send it to backends
+    RRDHOST_FLAG_EXPORTING_SEND           = 1 << 3, // send it to external databases
+    RRDHOST_FLAG_EXPORTING_DONT_SEND      = 1 << 4, // don't send it to external databases
     RRDHOST_FLAG_ARCHIVED               = 1 << 5, // The host is archived, no collected charts yet
     RRDHOST_FLAG_MULTIHOST              = 1 << 6, // Host belongs to localhost/megadb
 } RRDHOST_FLAGS;
diff --git a/database/rrdhost.c b/database/rrdhost.c
index 8f87784008..5890b6f9ce 100644
--- a/database/rrdhost.c
+++ b/database/rrdhost.c
@@ -718,7 +718,7 @@ int rrd_init(char *hostname, struct rrdhost_system_info *system_info) {
             , netdata_configured_timezone
             , netdata_configured_abbrev_timezone
             , netdata_configured_utc_offset
-            , config_get(CONFIG_SECTION_BACKEND, "host tags", "")
+            , ""
             , program_name
             , program_version
             , default_rrd_update_every
@@ -1233,50 +1233,6 @@ struct label *parse_json_tags(struct label *label_list, const char *tags)
     return label_list;
 }
 
-static struct label *rrdhost_load_labels_from_tags(void)
-{
-    if (!localhost->tags)
-        return NULL;
-
-    struct label *label_list = NULL;
-    BACKEND_TYPE type = BACKEND_TYPE_UNKNOWN;
-
-    if (config_exists(CONFIG_SECTION_BACKEND, "enabled")) {
-        if (config_get_boolean(CONFIG_SECTION_BACKEND, "enabled", CONFIG_BOOLEAN_NO) != CONFIG_BOOLEAN_NO) {
-            const char *type_name = config_get(CONFIG_SECTION_BACKEND, "type", "graphite");
-            type = backend_select_type(type_name);
-        }
-    }
-
-    switch (type) {
-        case BACKEND_TYPE_GRAPHITE:
-            label_list = parse_simple_tags(
-                label_list, localhost->tags, '=', ';', DO_NOT_STRIP_QUOTES, DO_NOT_STRIP_QUOTES,
-                DO_NOT_SKIP_ESCAPED_CHARACTERS);
-            break;
-        case BACKEND_TYPE_OPENTSDB_USING_TELNET:
-            label_list = parse_simple_tags(
-                label_list, localhost->tags, '=', ' ', DO_NOT_STRIP_QUOTES, DO_NOT_STRIP_QUOTES,
-                DO_NOT_SKIP_ESCAPED_CHARACTERS);
-            break;
-        case BACKEND_TYPE_OPENTSDB_USING_HTTP:
-            label_list = parse_simple_tags(
-                label_list, localhost->tags, ':', ',', STRIP_QUOTES, STRIP_QUOTES,
-                DO_NOT_SKIP_ESCAPED_CHARACTERS);
-            break;
-        case BACKEND_TYPE_JSON:
-            label_list = parse_json_tags(label_list, localhost->tags);
-            break;
-        default:
-            label_list = parse_simple_tags(
-                label_list, localhost->tags, '=', ',', DO_NOT_STRIP_QUOTES, STRIP_QUOTES,
-                DO_NOT_SKIP_ESCAPED_CHARACTERS);
-            break;
-    }
-
-    return label_list;
-}
-
 static struct label *rrdhost_load_kubernetes_labels(void)
 {
     struct label *l=NULL;
@@ -1340,10 +1296,8 @@ void reload_host_labels(void)
     struct label *from_auto = rrdhost_load_auto_labels();
     struct label *from_k8s = rrdhost_load_kubernetes_labels();
     struct label *from_config = rrdhost_load_config_labels();
-    struct label *from_tags = rrdhost_load_labels_from_tags();
 
     struct label *new_labels = merge_label_lists(from_auto, from_k8s);
-    new_labels = merge_label_lists(new_labels, from_tags);
     new_labels = merge_label_lists(new_labels, from_config);
 
     rrdhost_rdlock(localhost);
diff --git a/database/rrdset.c b/database/rrdset.c
index e8217e90ba..7b58d3780d 100644
--- a/database/rrdset.c
+++ b/database/rrdset.c
@@ -190,8 +190,6 @@ int rrdset_set_name(RRDSET *st, const char *name) {
 
     rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_SEND);
     rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_IGNORE);
-    rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_SEND);
-    rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_IGNORE);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_IGNORE);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);
@@ -872,8 +870,6 @@ RRDSET *rrdset_create_custom(
     rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE);
     rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_SEND);
     rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_IGNORE);
-    rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_SEND);
-    rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_IGNORE);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_IGNORE);
     rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);