diff options
Diffstat (limited to 'db/post_migrate/20170703130158_schedule_merge_request_diff_migrations.rb')
| -rw-r--r-- | db/post_migrate/20170703130158_schedule_merge_request_diff_migrations.rb | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/db/post_migrate/20170703130158_schedule_merge_request_diff_migrations.rb b/db/post_migrate/20170703130158_schedule_merge_request_diff_migrations.rb deleted file mode 100644 index fd4b2859f7f..00000000000 --- a/db/post_migrate/20170703130158_schedule_merge_request_diff_migrations.rb +++ /dev/null @@ -1,33 +0,0 @@ -class ScheduleMergeRequestDiffMigrations < ActiveRecord::Migration[4.2] - include Gitlab::Database::MigrationHelpers - - DOWNTIME = false - BATCH_SIZE = 2500 - MIGRATION = 'DeserializeMergeRequestDiffsAndCommits' - - disable_ddl_transaction! - - class MergeRequestDiff < ActiveRecord::Base - self.table_name = 'merge_request_diffs' - - include ::EachBatch - end - - # Assuming that there are 5 million rows affected (which is more than on - # GitLab.com), and that each batch of 2,500 rows takes up to 5 minutes, then - # we can migrate all the rows in 7 days. - # - # On staging, plucking the IDs themselves takes 5 seconds. - def up - non_empty = 'st_commits IS NOT NULL OR st_diffs IS NOT NULL' - - MergeRequestDiff.where(non_empty).each_batch(of: BATCH_SIZE) do |relation, index| - range = relation.pluck('MIN(id)', 'MAX(id)').first - - BackgroundMigrationWorker.perform_in(index * 5.minutes, MIGRATION, range) - end - end - - def down - end -end |