delayed_job error

backtrace

15:04:08 dj.1   | FATAL:  invalid frontend message type 0
15:04:08 dj.1   | PG::ConnectionBad: PQsocket() can't get socket descriptor: SHOW search_path
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:147:in `async_exec'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:147:in `block in query'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract_adapter.rb:472:in `block in log'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activesupport-4.2.5/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract_adapter.rb:466:in `log'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:146:in `query'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/schema_statements.rb:265:in `schema_search_path'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:627:in `sql_key'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:633:in `prepare_statement'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:596:in `exec_cache'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:585:in `execute_and_clear'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql/database_statements.rb:173:in `exec_delete'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/database_statements.rb:114:in `update'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/query_cache.rb:14:in `update'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/activerecord-4.2.5/lib/active_record/relation.rb:345:in `update_all'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job_active_record-4.1.0/lib/delayed/backend/active_record.rb:40:in `clear_locks!'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/plugins/clear_locks.rb:9:in `ensure in block (2 levels) in <class:ClearLocks>'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/plugins/clear_locks.rb:9:in `block (2 levels) in <class:ClearLocks>'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:79:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:79:in `block (2 levels) in add'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:61:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:61:in `block in initialize'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:79:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:79:in `block in add'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:66:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:66:in `execute'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/lifecycle.rb:40:in `run_callbacks'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/worker.rb:165:in `start'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:131:in `run'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:119:in `block in run_process'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/application.rb:265:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/application.rb:265:in `block in start_proc'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/application.rb:274:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/application.rb:274:in `start_proc'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/application.rb:295:in `start'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/controller.rb:59:in `run'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons.rb:193:in `block in run_proc'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/cmdline.rb:88:in `call'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons/cmdline.rb:88:in `catch_exceptions'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/daemons-1.2.3/lib/daemons.rb:192:in `run_proc'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:117:in `run_process'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:98:in `block in daemonize'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:96:in `times'
15:04:08 dj.1   | /Users/yuriy/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/delayed_job-4.1.1/lib/delayed/command.rb:96:in `daemonize'
15:04:08 dj.1   | bin/delayed_job:5:in `<main>'
15:04:08 dj.1   | exited with code 1
15:04:08 system | sending SIGTERM to all processes