From 82ada5d3047237d9e055c43aca7dc7e98d0f2f71 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kamil=20Trzci=C5=84ski?= <ayufan@ayufan.eu>
Date: Tue, 4 Sep 2018 14:56:21 +0200
Subject: [PATCH] Fix mysql2 query size

---
 ...164904_fix_prometheus_metric_query_limits.rb | 17 +++++++++++++++++
 .../prometheus_metrics_limits_to_mysql.rb       | 12 ++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 db/migrate/20180831164904_fix_prometheus_metric_query_limits.rb
 create mode 100644 db/migrate/prometheus_metrics_limits_to_mysql.rb

diff --git a/db/migrate/20180831164904_fix_prometheus_metric_query_limits.rb b/db/migrate/20180831164904_fix_prometheus_metric_query_limits.rb
new file mode 100644
index 00000000000..b8b08222d66
--- /dev/null
+++ b/db/migrate/20180831164904_fix_prometheus_metric_query_limits.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+require Rails.root.join('db/migrate/prometheus_metrics_limits_to_mysql')
+
+class FixPrometheusMetricQueryLimits < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  def up
+    PrometheusMetricsLimitsToMysql.new.up
+  end
+
+  def down
+    # no-op
+  end
+end
diff --git a/db/migrate/prometheus_metrics_limits_to_mysql.rb b/db/migrate/prometheus_metrics_limits_to_mysql.rb
new file mode 100644
index 00000000000..79f4ab9b64b
--- /dev/null
+++ b/db/migrate/prometheus_metrics_limits_to_mysql.rb
@@ -0,0 +1,12 @@
+class PrometheusMetricsLimitsToMysql < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def up
+    return unless Gitlab::Database.mysql?
+
+    change_column :prometheus_metrics, :query, :text, limit: 4096, default: nil
+  end
+
+  def down
+  end
+end