Parsed test spec with 2 sessions starting permutation: s1-begin s1-insert s2-begin s2-update-node-1 s1-abort s2-abort create_distributed_table step s1-begin: BEGIN; step s1-insert: INSERT INTO t1 SELECT generate_series(1, 100); step s2-begin: BEGIN; step s2-update-node-1: -- update a specific node by address SELECT master_update_node(nodeid, 'localhost', nodeport + 10) FROM pg_dist_node WHERE nodename = 'localhost' AND nodeport = 57637; step s1-abort: ABORT; step s2-update-node-1: <... completed> master_update_node step s2-abort: ABORT; master_remove_node starting permutation: s1-begin s1-insert s2-begin s2-update-node-1-force s2-abort s1-abort create_distributed_table step s1-begin: BEGIN; step s1-insert: INSERT INTO t1 SELECT generate_series(1, 100); step s2-begin: BEGIN; step s2-update-node-1-force: -- update a specific node by address (force) SELECT master_update_node(nodeid, 'localhost', nodeport + 10, force => true, lock_cooldown => 100) FROM pg_dist_node WHERE nodename = 'localhost' AND nodeport = 57637; step s2-update-node-1-force: <... completed> master_update_node step s2-abort: ABORT; step s1-abort: ABORT; WARNING: this step had a leftover error message FATAL: terminating connection due to administrator command FATAL: terminating connection due to administrator command SSL connection has been closed unexpectedly server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. master_remove_node