Class: Gitlab::BackgroundMigration::BackfillClustersKubernetesNamespacesShardingKey

Inherits:
BatchedMigrationJob
  • Object
show all
Defined in:
lib/gitlab/background_migration/backfill_clusters_kubernetes_namespaces_sharding_key.rb

Constant Summary

Constants inherited from BatchedMigrationJob

Gitlab::BackgroundMigration::BatchedMigrationJob::DEFAULT_FEATURE_CATEGORY, Gitlab::BackgroundMigration::BatchedMigrationJob::MINIMUM_PAUSE_MS

Constants included from Database::DynamicModelHelpers

Database::DynamicModelHelpers::BATCH_SIZE

Instance Method Summary collapse

Methods inherited from BatchedMigrationJob

#batch_metrics, cursor, cursor?, cursor_columns, feature_category, #filter_batch, generic_instance, health_context_tables, #initialize, job_arguments, job_arguments_count, operation_name, scope_to, tables_to_check_for_vacuum

Methods included from Database::DynamicModelHelpers

define_batchable_model, #each_batch, #each_batch_range

Constructor Details

This class inherits a constructor from Gitlab::BackgroundMigration::BatchedMigrationJob

Instance Method Details

#perform ⇒ Object 



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# File 'lib/gitlab/background_migration/backfill_clusters_kubernetes_namespaces_sharding_key.rb', line 9

def perform
  each_sub_batch do |sub_batch|
    connection.execute(<<~SQL)
      UPDATE clusters_kubernetes_namespaces
      SET
        organization_id = clusters.organization_id,
        group_id = clusters.group_id,
        sharding_project_id = clusters.project_id
      FROM clusters
      WHERE clusters_kubernetes_namespaces.cluster_id = clusters.id
            AND clusters_kubernetes_namespaces.id IN (#{sub_batch.select(:id).to_sql})
            AND num_nonnulls(
              clusters_kubernetes_namespaces.organization_id,
              clusters_kubernetes_namespaces.group_id,
              clusters_kubernetes_namespaces.sharding_project_id
            ) != 1;
    SQL
  end
end