Add SGW stats for skipped sequences

Change-Id: Id7f06f7d1c04ed9d02d608c0dd83462a3d56327b
Reviewed-on: https://review.couchbase.org/c/cbmonitor/+/229476
Reviewed-by: Daniel Nagy <daniel.nagy@couchbase.com>
Tested-by: Dragos Petru Taraban <dragos.petru@couchbase.com>

Author: DragosPetruTaraban

webapp/cbmonitor/plotter/constants.py

@@ -609,6 +609,8 @@
     "syncgateway__per_db__db__cache__high_seq_stable": "high_seq_stable",
     "syncgateway__per_db__db__cache__skipped_seq_len": "skipped_seq_len",
     "syncgateway__per_db__db__cache__pending_seq_len": "pending_seq_len",
+    "syncgateway__per_db__db__cache__skipped_sequence_skip_list_nodes": "skipped_sequence_skip_list_nodes",
+    "syncgateway__per_db__db__cache__current_skipped_seq_count": "current_skipped_seq_count",
     "syncgateway__per_db__db__database__sequence_get_count": "sequence_get_count",
     "syncgateway__per_db__db__database__sequence_incr_count": "sequence_incr_count",
     "syncgateway__per_db__db__database__sequence_reserved_count": "sequence_reserved_count",
@@ -629,6 +631,7 @@
     "syncgateway__per_db__db__database__dcp_received_time": "dcp_received_time",
     "syncgateway__per_db__db__database__dcp_caching_count": "dcp_caching_count",
     "syncgateway__per_db__db__database__dcp_caching_time": "dcp_caching_time",
+    "syncgateway__per_db__db__database__num_doc_writes_rejected": "num_doc_writes_rejected",
     "syncgateway__per_db__db__delta_sync__deltas_requested": "deltas_requested",
     "syncgateway__per_db__db__delta_sync__deltas_sent": "deltas_sent",
     "syncgateway__per_db__db__shared_bucket_import__import_count": "import_count",

webapp/cbmonitor/plotter/reports.py

@@ -905,6 +905,8 @@ class Report(object):
                     "syncgateway__per_db__db__cache__high_seq_stable",
                     "syncgateway__per_db__db__cache__skipped_seq_len",
                     "syncgateway__per_db__db__cache__pending_seq_len",
+                    "syncgateway__per_db__db__cache__skipped_sequence_skip_list_nodes",
+                    "syncgateway__per_db__db__cache__current_skipped_seq_count",
                     "syncgateway__per_db__db__database__sequence_get_count",
                     "syncgateway__per_db__db__database__sequence_incr_count",
                     "syncgateway__per_db__db__database__sequence_reserved_count",
@@ -928,6 +930,7 @@ class Report(object):
                     "syncgateway__per_db__db__database__high_seq_feed",
                     "syncgateway__per_db__db__database__dcp_received_time",
                     "syncgateway__per_db__db__database__dcp_caching_count",
+                    "syncgateway__per_db__db__database__num_doc_writes_rejected",
                     "syncgateway__per_db__db__database__dcp_caching_time",
                     "syncgateway__per_db__db__delta_sync__deltas_requested",
                     "syncgateway__per_db__db__delta_sync__deltas_sent",