mirror of https://github.com/citusdata/citus.git
Add an alternative output for multi_move_mx
Onur Tirtir
parent
e81eca8ee3
commit
920cefeb49
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@ -0,0 +1,277 @@
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--
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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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-- 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_distributed_table
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---------------------------------------------------------------------
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(1 row)
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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_distributed_table
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---------------------------------------------------------------------
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(1 row)
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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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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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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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logicalrelid | repmodel
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---------------------------------------------------------------------
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mx_table_1 | s
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mx_table_2 | s
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mx_table_3 | s
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(3 rows)
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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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logicalrelid | shardid | nodename | nodeport
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---------------------------------------------------------------------
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mx_table_1 | 1550000 | localhost | 57637
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mx_table_1 | 1550001 | localhost | 57638
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mx_table_1 | 1550002 | localhost | 57637
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mx_table_1 | 1550003 | localhost | 57638
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mx_table_2 | 1550004 | localhost | 57637
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mx_table_2 | 1550005 | localhost | 57638
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mx_table_2 | 1550006 | localhost | 57637
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mx_table_2 | 1550007 | localhost | 57638
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mx_table_3 | 1550008 | localhost | 57637
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mx_table_3 | 1550009 | localhost | 57638
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mx_table_3 | 1550010 | localhost | 57637
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mx_table_3 | 1550011 | localhost | 57638
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(12 rows)
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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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logicalrelid | shardid | nodename | nodeport
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---------------------------------------------------------------------
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mx_table_1 | 1550000 | localhost | 57637
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mx_table_1 | 1550001 | localhost | 57638
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mx_table_1 | 1550002 | localhost | 57637
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mx_table_1 | 1550003 | localhost | 57638
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mx_table_2 | 1550004 | localhost | 57637
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mx_table_2 | 1550005 | localhost | 57638
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mx_table_2 | 1550006 | localhost | 57637
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mx_table_2 | 1550007 | localhost | 57638
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mx_table_3 | 1550008 | localhost | 57637
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mx_table_3 | 1550009 | localhost | 57638
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mx_table_3 | 1550010 | localhost | 57637
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mx_table_3 | 1550011 | localhost | 57638
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(12 rows)
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\c - - - :master_port
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-- Check that citus_copy_shard_placement cannot be run with MX tables
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SELECT
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citus_copy_shard_placement(shardid, 'localhost', :worker_1_port, 'localhost', :worker_2_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_1_port
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ORDER BY
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shardid
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LIMIT 1;
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ERROR: Table 'mx_table_1' is streaming replicated. Shards of streaming replicated tables cannot be copied
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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, '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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master_move_shard_placement
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---------------------------------------------------------------------
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(1 row)
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-- Test changing citus.node_conninfo on the target node affects the
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-- CREATE SUBSCRIPTION command for shard move
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\c - - - :worker_2_port
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ALTER SYSTEM SET citus.node_conninfo TO 'sslrootcert=/non/existing/certificate.crt sslmode=verify-full';
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SELECT pg_reload_conf();
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pg_reload_conf
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---------------------------------------------------------------------
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t
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(1 row)
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\c - - - :worker_2_port
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-- before reseting citus.node_conninfo, check that CREATE SUBSCRIPTION
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-- with citus_use_authinfo takes into account node_conninfo even when
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-- one of host, port, or user parameters are not specified.
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--
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-- We need to specify host and port to not get an hba error, so we test
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-- only with ommitting user.
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CREATE SUBSCRIPTION subs_01 CONNECTION 'host=''localhost'' port=57637'
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PUBLICATION pub_01 WITH (citus_use_authinfo=true);
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ERROR: could not connect to the publisher: connection to server at "localhost" (::1), port 57637 failed: root certificate file "/non/existing/certificate.crt" does not exist
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Either provide the file or change sslmode to disable server certificate verification.
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ALTER SYSTEM RESET citus.node_conninfo;
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SELECT pg_reload_conf();
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pg_reload_conf
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---------------------------------------------------------------------
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t
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(1 row)
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\c - - - :master_port
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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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logicalrelid | shardid | nodename | nodeport
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---------------------------------------------------------------------
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mx_table_1 | 1550000 | localhost | 57638
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mx_table_1 | 1550001 | localhost | 57638
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mx_table_1 | 1550002 | localhost | 57637
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mx_table_1 | 1550003 | localhost | 57638
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mx_table_2 | 1550004 | localhost | 57638
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mx_table_2 | 1550005 | localhost | 57638
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mx_table_2 | 1550006 | localhost | 57637
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mx_table_2 | 1550007 | localhost | 57638
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mx_table_3 | 1550008 | localhost | 57637
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mx_table_3 | 1550009 | localhost | 57638
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mx_table_3 | 1550010 | localhost | 57637
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mx_table_3 | 1550011 | localhost | 57638
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(12 rows)
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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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logicalrelid | shardid | nodename | nodeport
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---------------------------------------------------------------------
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mx_table_1 | 1550000 | localhost | 57638
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mx_table_1 | 1550001 | localhost | 57638
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mx_table_1 | 1550002 | localhost | 57637
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mx_table_1 | 1550003 | localhost | 57638
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mx_table_2 | 1550004 | localhost | 57638
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mx_table_2 | 1550005 | localhost | 57638
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mx_table_2 | 1550006 | localhost | 57637
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mx_table_2 | 1550007 | localhost | 57638
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mx_table_3 | 1550008 | localhost | 57637
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mx_table_3 | 1550009 | localhost | 57638
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mx_table_3 | 1550010 | localhost | 57637
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mx_table_3 | 1550011 | localhost | 57638
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(12 rows)
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-- Check that the UDFs cannot be called from the workers
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SELECT
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citus_copy_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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ERROR: operation is not allowed on this node
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HINT: Connect to the coordinator and run it again.
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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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ERROR: operation is not allowed on this node
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HINT: Connect to the coordinator and run it again.
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-- Check that shards of a table with GENERATED columns can be moved.
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\c - - - :master_port
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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_with_generated_column (a int, b int GENERATED ALWAYS AS ( a + 3 ) STORED, c int);
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SELECT create_distributed_table('mx_table_with_generated_column', 'a');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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-- Check that dropped columns are handled properly in a move.
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ALTER TABLE mx_table_with_generated_column DROP COLUMN c;
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-- Move a shard from worker 1 to worker 2
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SELECT
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citus_move_shard_placement(shardid, 'localhost', :worker_1_port, 'localhost', :worker_2_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_with_generated_column'::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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citus_move_shard_placement
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---------------------------------------------------------------------
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(1 row)
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-- Cleanup
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\c - - - :master_port
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SET client_min_messages TO WARNING;
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CALL citus_cleanup_orphaned_resources();
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DROP TABLE mx_table_with_generated_column;
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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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