irb(main):001:0> Delayed::Job.where.not(last_error: nil)
=> #<ActiveRecord::Relation [#<Delayed::Backend::ActiveRecord::Job id: 28491, pr iority: 0, attempts: 3, handler: “— !ruby/object:BackgroundJobSearchIndex\nobj ect: …”, last_error: “Unable to process POST request to elasticsearch UR…”, run_at: “2018-04-11 10:29:34”, locked_at: nil, failed_at: nil, locked_by: nil, q ueue: nil, created_at: “2018-04-11 10:25:59”, updated_at: “2018-04-11 10:28:08”> , #<Delayed::Backend::ActiveRecord::Job id: 27638, priority: 0, attempts: 7, han dler: “— !ruby/object:BackgroundJobSearchIndex\nobject: …”, last_error: “Una ble to process POST request to elasticsearch UR…”, run_at: “2018-04-11 10:31:1 3”, locked_at: nil, failed_at: nil, locked_by: nil, queue: nil, created_at: “201 8-04-11 09:08:50”, updated_at: “2018-04-11 09:51:07”>, #<Delayed::Backend::Activ eRecord::Job id: 27271, priority: 0, attempts: 7, handler: “— !ruby/object:Bac kgroundJobSearchIndex\nobject: …”, last_error: “Unable to process POST request to elasticsearch UR…”, run_at: “2018-04-11 10:30:16”, locked_at: nil, failed_ at: nil, locked_by: nil, queue: nil, created_at: “2018-04-11 09:08:44”, updated_ at: “2018-04-11 09:50:10”>, #<Delayed::Backend::ActiveRecord::Job id: 27039, pri ority: 0, attempts: 7, handler: “— !ruby/object:BackgroundJobSearchIndex\nobje ct: …”, last_error: “Unable to process POST request to elasticsearch UR…”, r un_at: “2018-04-11 10:29:31”, locked_at: nil, failed_at: nil, locked_by: nil, qu eue: nil, created_at: “2018-04-11 09:08:31”, updated_at: “2018-04-11 09:49:25”>, #<Delayed::Backend::ActiveRecord::Job id: 27676, priority: 0, attempts: 7, hand ler: “— !ruby/object:BackgroundJobSearchIndex\nobject: …”, last_error: “Unab le to process POST request to elasticsearch UR…”, run_at: "2018-04-11 10:41:25 ", locked_at: nil, failed_at: nil, locked_by: nil, queue: nil, created_at: “2018 -04-11 09:21:23”, updated_at: “2018-04-11 10:01:19”>, #<Delayed::Backend::Active Record::Job id: 27672, priority: 0, attempts: 7, handler: “— !ruby/object:Back groundJobSearchIndex\nobject: …”, last_error: “Unable to process POST request to elasticsearch UR…”, run_at: “2018-04-11 10:41:24”, locked_at: nil, failed_a t: nil, locked_by: nil, queue: nil, created_at: “2018-04-11 09:21:23”, updated_a t: “2018-04-11 10:01:18”>, #<Delayed::Backend::ActiveRecord::Job id: 28013, prio rity: 0, attempts: 7, handler: “— !ruby/object:BackgroundJobSearchIndex\nobjec t: …”, last_error: “Unable to process POST request to elasticsearch UR…”, ru n_at: “2018-04-11 10:46:32”, locked_at: nil, failed_at: nil, locked_by: nil, que ue: nil, created_at: “2018-04-11 09:25:50”, updated_at: “2018-04-11 10:06:26”>, #<Delayed::Backend::ActiveRecord::Job id: 27181, priority: 0, attempts: 7, handl er: “— !ruby/object:BackgroundJobSearchIndex\nobject: …”, last_error: “Unabl e to process POST request to elasticsearch UR…”, run_at: “2018-04-11 10:30:00” , locked_at: nil, failed_at: nil, locked_by: nil, queue: nil, created_at: “2018- 04-11 09:08:40”, updated_at: “2018-04-11 09:49:54”>, #<Delayed::Backend::ActiveR ecord::Job id: 27283, priority: 0, attempts: 7, handler: “— !ruby/object:Backg roundJobSearchIndex\nobject: …”, last_error: “Unable to process POST request t o elasticsearch UR…”, run_at: “2018-04-11 10:30:17”, locked_at: nil, failed_at : nil, locked_by: nil, queue: nil, created_at: “2018-04-11 09:08:44”, updated_at : “2018-04-11 09:50:11”>, #<Delayed::Backend::ActiveRecord::Job id: 27526, prior ity: 0, attempts: 7, handler: “— !ruby/object:BackgroundJobSearchIndex\nobject : …”, last_error: “Unable to process POST request to elasticsearch UR…”, run _at: “2018-04-11 10:30:55”, locked_at: nil, failed_at: nil, locked_by: nil, queu e: nil, created_at: “2018-04-11 09:08:48”, updated_at: “2018-04-11 09:50:49”>, . …]>