mirror of https://github.com/citusdata/citus.git
143 lines
3.7 KiB
SQL
143 lines
3.7 KiB
SQL
--
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-- MULTI_MOVE_MX
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--
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ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 1550000;
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SELECT start_metadata_sync_to_node('localhost', :worker_2_port);
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-- Create mx test tables
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SET citus.shard_count TO 4;
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SET citus.shard_replication_factor TO 1;
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CREATE TABLE mx_table_1 (a int);
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SELECT create_distributed_table('mx_table_1', 'a');
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CREATE TABLE mx_table_2 (a int);
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SELECT create_distributed_table('mx_table_2', 'a');
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CREATE TABLE mx_table_3 (a text);
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SELECT create_distributed_table('mx_table_3', 'a');
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-- Check that the first two tables are colocated
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SELECT
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logicalrelid, repmodel
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FROM
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pg_dist_partition
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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OR logicalrelid = 'mx_table_2'::regclass
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OR logicalrelid = 'mx_table_3'::regclass
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ORDER BY
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logicalrelid;
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-- Check the list of shards
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SELECT
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logicalrelid, shardid, nodename, nodeport
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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OR logicalrelid = 'mx_table_2'::regclass
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OR logicalrelid = 'mx_table_3'::regclass
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ORDER BY
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logicalrelid, shardid;
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-- Check the data on the worker
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\c - - - :worker_2_port
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SELECT
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logicalrelid, shardid, nodename, nodeport
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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OR logicalrelid = 'mx_table_2'::regclass
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OR logicalrelid = 'mx_table_3'::regclass
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ORDER BY
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logicalrelid, shardid;
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\c - - - :master_port
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-- Check that master_copy_shard_placement cannot be run with MX tables
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SELECT
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master_copy_shard_placement(shardid, 'localhost', :worker_1_port, 'localhost', :worker_2_port, false, 'force_logical')
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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AND nodeport = :worker_1_port
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ORDER BY
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shardid
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LIMIT 1;
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-- Move a shard from worker 1 to worker 2
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SELECT
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master_move_shard_placement(shardid, 'localhost', :worker_1_port, 'localhost', :worker_2_port)
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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AND nodeport = :worker_1_port
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ORDER BY
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shardid
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LIMIT 1;
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-- Check that the shard and its colocated shard is moved, but not the other shards
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SELECT
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logicalrelid, shardid, nodename, nodeport
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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(logicalrelid = 'mx_table_1'::regclass
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OR logicalrelid = 'mx_table_2'::regclass
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OR logicalrelid = 'mx_table_3'::regclass)
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AND shardstate != 4
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ORDER BY
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logicalrelid, shardid;
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-- Check that the changes are made in the worker as well
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\c - - - :worker_2_port
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SELECT
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logicalrelid, shardid, nodename, nodeport
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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OR logicalrelid = 'mx_table_2'::regclass
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OR logicalrelid = 'mx_table_3'::regclass
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ORDER BY
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logicalrelid, shardid;
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-- Check that the UDFs cannot be called from the workers
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SELECT
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master_copy_shard_placement(shardid, 'localhost', :worker_2_port, 'localhost', :worker_1_port, false, 'force_logical')
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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AND nodeport = :worker_2_port
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ORDER BY
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shardid
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LIMIT 1 OFFSET 1;
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SELECT
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master_move_shard_placement(shardid, 'localhost', :worker_2_port, 'localhost', :worker_1_port, 'force_logical')
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FROM
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pg_dist_shard NATURAL JOIN pg_dist_shard_placement
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WHERE
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logicalrelid = 'mx_table_1'::regclass
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AND nodeport = :worker_2_port
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ORDER BY
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shardid
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LIMIT 1 OFFSET 1;
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-- Cleanup
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\c - - - :master_port
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DROP TABLE mx_table_1;
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DROP TABLE mx_table_2;
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DROP TABLE mx_table_3;
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SELECT stop_metadata_sync_to_node('localhost', :worker_2_port);
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\c - - - :worker_2_port
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DELETE FROM pg_dist_node;
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DELETE FROM pg_dist_partition;
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DELETE FROM pg_dist_shard;
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DELETE FROM pg_dist_shard_placement;
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