Enrich live_events put_records errors

Better tag metrics in datadog to allow aggregations
across all event_types. Also allow for request_id
to be sent to datadog when a failure is made so we
can easily track down the problem request in logs.

closes PLAT-5026

Test Plan:
 - force a live event to fail putting to kinesis (you can
   do this by updating the stubbed client to add error code)
 - note that the enrichment is now present
 - see that the dropped event is also pushed to sentry and
   the logs

Change-Id: I6c82081c69ced40b32294bdd0e7f21849b19494e
Reviewed-on: https://gerrit.instructure.com/212192
Tested-by: Jenkins
QA-Review: Tucker Mcknight <tmcknight@instructure.com>
Reviewed-by: Weston Dransfield <wdransfield@instructure.com>
Product-Review: Marc Phillips <mphillips@instructure.com>

config/initializers/live_events.rb

@@ -19,6 +19,7 @@ class StubbedClient
   def self.put_records(records:, stream_name:)
     events = records.map { |e| JSON.parse(e[:data]).dig('attributes', 'event_name') }.join(' | ')
     puts "Events #{events} put to stream #{stream_name}: #{records}"
+    records.map { |r| OpenStruct.new(error_code: nil, error_message: nil ) }
   end
 
   def self.stream_name
@@ -30,6 +31,7 @@ Rails.configuration.to_prepare do
   LiveEvents.logger = Rails.logger
   LiveEvents.cache = Rails.cache
   LiveEvents.statsd = InstStatsd::Statsd
+  LiveEvents.error_reporter = Canvas::Errors
   LiveEvents.max_queue_size = -> { Setting.get('live_events_max_queue_size', 5000).to_i }
   LiveEvents.settings = -> {
     plugin_settings = Canvas::Plugin.find(:live_events)&.settings

gems/live_events/lib/live_events.rb

@@ -20,7 +20,7 @@ require 'inst_statsd'
 
 module LiveEvents
   class << self
-    attr_accessor :logger, :cache, :statsd
+    attr_accessor :logger, :cache, :statsd, :error_reporter
     attr_reader :stream_client
 
     # rubocop:disable Style/TrivialAccessors

gems/live_events/lib/live_events/async_worker.rb

@@ -59,8 +59,10 @@ module LiveEvents
       @queue << {
         data: event_json,
         partition_key: partition_key,
-        statsd_prefix: "live_events.events.#{event[:attributes][:event_name]}",
-        total_bytes: total_bytes
+        statsd_prefix: "live_events.events",
+        tags: { event: event[:attributes][:event_name] },
+        total_bytes: total_bytes,
+        request_id: event[:attributes][:request_id]
       }
       true
     end
@@ -146,18 +148,28 @@ module LiveEvents
 
     def process_results(res, records)
       res.records.each_with_index do |r, i|
+        rec = records[i]
         if r.error_code.present?
-          log_unprocessed(records[i])
+          log_unprocessed(rec, r.error_code, r.error_message)
         else
-          LiveEvents&.statsd&.increment("#{records[i][:statsd_prefix]}.sends")
+          LiveEvents&.statsd&.increment("#{rec[:statsd_prefix]}.sends", tags: rec[:tags])
           nil
         end
       end.compact
     end
 
-    def log_unprocessed(record)
-      logger.error("Error posting event #{record[:statsd_prefix]} with partition key #{record[:partition_key]}: #{record[:data]}")
-      LiveEvents&.statsd&.increment("#{record[:statsd_prefix]}.send_errors")
+    def log_unprocessed(record, error_code, error_message)
+      logger.error(
+        "Error posting event #{record.dig(:tags, :event)} with partition key #{record[:partition_key]}. Error Code: #{error_code} | Error Message: #{error_message}"
+      )
+      logger.debug(
+        "Failed event data: #{record[:data]}"
+      )
+      LiveEvents&.error_reporter&.capture(:dropped_live_event, message: { request_id: record[:request_id], error_code: error_code, error_message: error_message }.to_json)
+      LiveEvents&.statsd&.increment(
+        "#{record[:statsd_prefix]}.send_errors",
+        tags: rec[:tags].merge(error_code: error_code)
+      )
     end
   end
 end

gems/live_events/lib/live_events/client.rb

@@ -72,7 +72,8 @@ module LiveEvents
     end
 
     def post_event(event_name, payload, time = Time.now, ctx = {}, partition_key = nil)
-      statsd_prefix = "live_events.events.#{event_name}"
+      statsd_prefix = "live_events.events"
+      tags = { event: event_name }
 
       ctx ||= {}
       attributes = ctx.except(*ATTRIBUTE_BLACKLIST).merge({
@@ -92,8 +93,12 @@ module LiveEvents
       pusher = @worker || LiveEvents.worker
 
       unless pusher.push(event, partition_key)
-        LiveEvents.logger.error("Error queueing job for worker event: #{event_json}")
-        LiveEvents&.statsd&.increment("#{statsd_prefix}.queue_full_errors")
+        LiveEvents.logger.error("Error queueing job for live event: #{event.to_json}")
+        LiveEvents&.error_reporter&.capture(
+          :dropped_live_event,
+          message: "Error queueing job for live event with request id: #{attributes[:request_id]}"
+        )
+        LiveEvents&.statsd&.increment("#{statsd_prefix}.queue_full_errors", tags: tags)
       end
     end
   end