2013-11-06 19:50:00 LOG:   pid 25806: DB node id: 1 backend pid: 19285 statement: BEGIN
2013-11-06 19:50:00 DEBUG: pid 25806: do_command: Query: BEGIN
2013-11-06 19:50:00 DEBUG: pid 25806: wait_for_query_response: waiting for backend 1 completing the query
2013-11-06 19:50:00 DEBUG: pid 25806: detect_error: kind: C
2013-11-06 19:50:00 DEBUG: pid 25806: do_command: kind: C
2013-11-06 19:50:00 DEBUG: pid 25806: len:a000000
2013-11-06 19:50:00 DEBUG: pid 25806: do_command: kind: Z
2013-11-06 19:50:00 DEBUG: pid 25806: do_command: transaction state: T
2013-11-06 19:50:00 DEBUG: pid 25806: pool_unset_writing_transaction: done
2013-11-06 19:50:00 DEBUG: pid 25806: Bind: checking insert lock
2013-11-06 19:50:00 DEBUG: pid 25806: Bind: waiting for master completing the query
2013-11-06 19:50:00 LOG:   pid 25806: DB node id: 1 backend pid: 19285 statement: B message
2013-11-06 19:50:00 DEBUG: pid 25806: wait_for_query_response: waiting for backend 1 completing the query
2013-11-06 19:50:00 LOG:   pid 25806: pool_send_and_wait: Error or notice message from backend: : DB node id: 1 backend pid: 19285 statement: delete from working_server message: unnamed prepared statement does not exist
2013-11-06 19:50:00 DEBUG: pid 25806: read_kind_from_one_backend: read kind from 1 th backend E