mirror of https://github.com/citusdata/citus.git
62 lines
2.0 KiB
PL/PgSQL
62 lines
2.0 KiB
PL/PgSQL
CREATE SCHEMA global_cancel;
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SET search_path TO global_cancel;
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SET citus.next_shard_id TO 56789000;
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CREATE TABLE dist_table (a INT, b INT);
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SELECT create_distributed_table ('dist_table', 'a', shard_count:=4);
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INSERT INTO dist_table VALUES (1, 1);
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SELECT global_pid AS coordinator_gpid FROM get_all_active_transactions() WHERE process_id = pg_backend_pid() \gset
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SELECT pg_typeof(:coordinator_gpid);
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SELECT pg_cancel_backend(:coordinator_gpid);
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SET citus.log_remote_commands TO ON;
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SELECT pg_cancel_backend(:coordinator_gpid) FROM dist_table WHERE a = 1;
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BEGIN;
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SELECT pg_cancel_backend(:coordinator_gpid) FROM dist_table WHERE a = 1;
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END;
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SET citus.log_remote_commands TO OFF;
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SELECT global_pid AS maintenance_daemon_gpid
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FROM pg_stat_activity psa JOIN get_all_active_transactions() gaat ON psa.pid = gaat.process_id
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WHERE application_name = 'Citus Maintenance Daemon' \gset
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SET client_min_messages TO ERROR;
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CREATE USER global_cancel_user;
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SELECT 1 FROM run_command_on_workers('CREATE USER global_cancel_user');
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RESET client_min_messages;
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\c - global_cancel_user - :master_port
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SELECT pg_typeof(:maintenance_daemon_gpid);
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SELECT pg_cancel_backend(:maintenance_daemon_gpid);
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SELECT pg_terminate_backend(:maintenance_daemon_gpid);
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-- we can cancel our own backend
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SELECT pg_cancel_backend(citus_backend_gpid());
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\c - postgres - :master_port
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SET client_min_messages TO DEBUG;
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-- 10000000000 is the node id multiplier for global pid
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SELECT pg_cancel_backend(10000000000 * citus_coordinator_nodeid() + 0);
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SELECT pg_terminate_backend(10000000000 * citus_coordinator_nodeid() + 0);
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RESET client_min_messages;
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SELECT citus_backend_gpid() = citus_calculate_gpid(citus_coordinator_nodeid(), pg_backend_pid());
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SELECT nodename = citus_nodename_for_nodeid(nodeid) AND nodeport = citus_nodeport_for_nodeid(nodeid)
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FROM pg_dist_node
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WHERE isactive = true AND noderole = 'primary';
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SELECT citus_nodeid_for_gpid(10000000000 * 2 + 3);
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SELECT citus_pid_for_gpid(10000000000 * 2 + 3);
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DROP SCHEMA global_cancel CASCADE;
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