mirror of https://github.com/citusdata/citus.git
850 lines
31 KiB
Plaintext
850 lines
31 KiB
Plaintext
CREATE SCHEMA split_shard_replication_setup_schema;
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SET search_path TO split_shard_replication_setup_schema;
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SET citus.shard_replication_factor TO 1;
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SET citus.shard_count TO 1;
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SET citus.next_shard_id TO 1;
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SELECT nodeid AS worker_1_node FROM pg_dist_node WHERE nodeport=:worker_1_port \gset
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SELECT nodeid AS worker_2_node FROM pg_dist_node WHERE nodeport=:worker_2_port \gset
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CREATE OR REPLACE FUNCTION wait_for_expected_rowcount_at_table(tableName text, expectedCount integer) RETURNS void AS $$
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DECLARE
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actualCount integer;
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BEGIN
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EXECUTE FORMAT('SELECT COUNT(*) FROM %s', tableName) INTO actualCount;
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WHILE expectedCount != actualCount LOOP
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EXECUTE FORMAT('SELECT COUNT(*) FROM %s', tableName) INTO actualCount;
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END LOOP;
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END$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION wait_for_updated_rowcount_at_table(tableName text, expectedCount integer) RETURNS void AS $$
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DECLARE
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actualCount integer;
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BEGIN
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EXECUTE FORMAT($query$SELECT COUNT(*) FROM %s WHERE value='b'$query$, tableName) INTO actualCount;
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WHILE expectedCount != actualCount LOOP
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EXECUTE FORMAT($query$SELECT COUNT(*) FROM %s WHERE value='b'$query$, tableName) INTO actualCount;
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END LOOP;
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END$$ LANGUAGE plpgsql;
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-- Create distributed table (non co-located)
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CREATE TABLE table_to_split (id bigserial PRIMARY KEY, value char);
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SELECT create_distributed_table('table_to_split','id');
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create_distributed_table
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---------------------------------------------------------------------
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(1 row)
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-- Test scenario one starts from here
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-- 1. table_to_split is a citus distributed table
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-- 2. Shard table_to_split_1 is located on worker1.
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-- 3. table_to_split_1 is split into table_to_split_2 and table_to_split_3.
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-- table_to_split_2/3 are located on worker2
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-- 4. execute UDF split_shard_replication_setup on worker1 with below
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-- params:
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-- worker_split_shard_replication_setup
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-- (
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-- ARRAY[
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-- ROW(1 /*source shardId */, 2 /* new shardId */,-2147483648 /* minHashValue */, -1 /* maxHasValue */ , 18 /* nodeId where new shard is placed */ ),
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-- ROW(1, 3 , 0 , 2147483647, 18 )
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-- ]
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-- );
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-- 5. Create Replication slot with 'citus'
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-- 6. Setup Pub/Sub
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-- 7. Insert into table_to_split_1 at source worker1
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-- 8. Expect the results in either table_to_split_2 or table_to_split_3 at worker2
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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CREATE TABLE table_to_split_1(id bigserial PRIMARY KEY, value char);
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CREATE TABLE table_to_split_2(id bigserial PRIMARY KEY, value char);
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CREATE TABLE table_to_split_3(id bigserial PRIMARY KEY, value char);
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-- Create dummy shard tables(table_to_split_2/3b) at worker1
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-- This is needed for Pub/Sub framework to work.
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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CREATE TABLE table_to_split_2(id bigserial PRIMARY KEY, value char);
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CREATE TABLE table_to_split_3(id bigserial PRIMARY KEY, value char);
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-- Create publication at worker1
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SET citus.enable_ddl_propagation TO off;
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CREATE PUBLICATION pub1 FOR TABLE table_to_split_1, table_to_split_2, table_to_split_3;
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RESET citus.enable_ddl_propagation;
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SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
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ROW(1, 'id', 2, '-2147483648', '-1', :worker_2_node)::pg_catalog.split_shard_info,
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ROW(1, 'id', 3, '0', '2147483647', :worker_2_node)::pg_catalog.split_shard_info
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], 0);
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- we create replication slots with a name including the next_operation_id as a suffix
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-- if this test file fails, make sure you compare the next_operation_id output to the object name in the next command
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SHOW citus.next_operation_id;
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citus.next_operation_id
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---------------------------------------------------------------------
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0
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(1 row)
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SELECT slot_name FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_10_0', :worker_2_node), 'citus') \gset
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-- Create subscription at worker2 with copy_data to 'false' and derived replication slot name
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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CREATE SUBSCRIPTION sub1
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CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
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PUBLICATION pub1
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WITH (
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create_slot=false,
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enabled=true,
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slot_name=:slot_name,
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copy_data=false);
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-- No data is present at this moment in all the below tables at worker2
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- Insert data in table_to_split_1 at worker1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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INSERT INTO table_to_split_1 values(100, 'a');
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INSERT INTO table_to_split_1 values(400, 'a');
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INSERT INTO table_to_split_1 values(500, 'a');
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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100 | a
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400 | a
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500 | a
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(3 rows)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- Expect data to be present in shard xxxxx and shard xxxxx based on the hash value.
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SELECT * FROM table_to_split_1; -- should alwasy have zero rows
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 1);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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400 | a
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(1 row)
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SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 2);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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100 | a
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500 | a
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(2 rows)
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-- UPDATE data of table_to_split_1 from worker1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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UPDATE table_to_split_1 SET value='b' WHERE id = 100;
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UPDATE table_to_split_1 SET value='b' WHERE id = 400;
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UPDATE table_to_split_1 SET value='b' WHERE id = 500;
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- Value should be updated in table_to_split_2;
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SELECT wait_for_updated_rowcount_at_table('table_to_split_2', 1);
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wait_for_updated_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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400 | b
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(1 row)
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-- Value should be updated in table_to_split_3;
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SELECT wait_for_updated_rowcount_at_table('table_to_split_3', 2);
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wait_for_updated_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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100 | b
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500 | b
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(2 rows)
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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DELETE FROM table_to_split_1;
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-- Child shard rows should be deleted
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SELECT wait_for_expected_rowcount_at_table('table_to_split_1', 0);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 0);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 0);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- drop publication from worker1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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DROP PUBLICATION pub1;
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SET client_min_messages TO ERROR;
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DROP SUBSCRIPTION sub1;
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\c - - - :master_port
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-- Test scenario (Parent and one child on same node. Other child on different node)
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-- 1. table_to_split_1 is split into table_to_split_2 and table_to_split_3.
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-- 2. table_to_split_1 is located on worker1.
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-- 3. table_to_split_2 is located on worker1 and table_to_split_3 is located on worker2
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SELECT nodeid AS worker_1_node FROM pg_dist_node WHERE nodeport=:worker_1_port \gset
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SELECT nodeid AS worker_2_node FROM pg_dist_node WHERE nodeport=:worker_2_port \gset
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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-- Create publication at worker1
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SET citus.enable_ddl_propagation TO off;
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CREATE PUBLICATION pub1 FOR TABLE table_to_split_1, table_to_split_2, table_to_split_3;
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RESET citus.enable_ddl_propagation;
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SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
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ROW(1, 'id', 2, '-2147483648', '-1', :worker_1_node)::pg_catalog.split_shard_info,
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ROW(1, 'id', 3, '0', '2147483647', :worker_2_node)::pg_catalog.split_shard_info
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], 0);
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WARNING: Previous split shard worflow was not successfully and could not complete the cleanup phase. Continuing with the current split shard workflow.
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count
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---------------------------------------------------------------------
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2
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(1 row)
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-- we create replication slots with a name including the next_operation_id as a suffix
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-- if this test file fails, make sure you compare the next_operation_id output to the object name in the next command
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SHOW citus.next_operation_id;
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citus.next_operation_id
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---------------------------------------------------------------------
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0
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(1 row)
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SELECT slot_name AS slot_for_worker1 FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_10_0', :worker_1_node), 'citus') \gset
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SELECT slot_name AS slot_for_worker2 FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_10_0', :worker_2_node), 'citus') \gset
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-- Create subscription at worker1 with copy_data to 'false' and 'slot_for_worker1'
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CREATE SUBSCRIPTION sub_worker1
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CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
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PUBLICATION pub1
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WITH (
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create_slot=false,
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enabled=true,
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slot_name=:slot_for_worker1,
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copy_data=false);
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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-- Create subscription at worker2 with copy_data to 'false' and 'slot_for_worker2'
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CREATE SUBSCRIPTION sub_worker2
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CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
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PUBLICATION pub1
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WITH (
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create_slot=false,
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enabled=true,
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slot_name=:slot_for_worker2,
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copy_data=false);
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-- No data is present at this moment in all the below tables at worker2
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- Insert data in table_to_split_1 at worker1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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INSERT INTO table_to_split_1 VALUES(100, 'a');
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INSERT INTO table_to_split_1 VALUES(400, 'a');
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INSERT INTO table_to_split_1 VALUES(500, 'a');
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UPDATE table_to_split_1 SET value='b' WHERE id = 400;
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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100 | a
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500 | a
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400 | b
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(3 rows)
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-- expect data to present in table_to_split_2 on worker1 as its destination for value '400'
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SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 1);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT id FROM table_to_split_2;
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id
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---------------------------------------------------------------------
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400
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- Expect data to be present only in table_to_split3 on worker2
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SELECT * FROM table_to_split_1;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 2);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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100 | a
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500 | a
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(2 rows)
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-- delete all from table_to_split_1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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DELETE FROM table_to_split_1;
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-- rows from table_to_split_2 should be deleted
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SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 0);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_2;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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-- rows from table_to_split_3 should be deleted
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 0);
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wait_for_expected_rowcount_at_table
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---------------------------------------------------------------------
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(1 row)
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SELECT * FROM table_to_split_3;
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id | value
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---------------------------------------------------------------------
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(0 rows)
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\c - - - :worker_2_port
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SET search_path TO split_shard_replication_setup_schema;
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SET client_min_messages TO ERROR;
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DROP SUBSCRIPTION sub_worker2;
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-- drop publication from worker1
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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SET client_min_messages TO ERROR;
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DROP SUBSCRIPTION sub_worker1;
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DROP PUBLICATION pub1;
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\c - - - :master_port
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-- Test scenario (parent shard and child shards are located on same machine)
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-- 1. table_to_split_1 is split into table_to_split_2 and table_to_split_3.
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-- 2. table_to_split_1 is located on worker1.
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-- 3. table_to_split_2 and table_to_split_3 are located on worker1
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SELECT nodeid AS worker_1_node FROM pg_dist_node WHERE nodeport=:worker_1_port \gset
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SELECT nodeid AS worker_2_node FROM pg_dist_node WHERE nodeport=:worker_2_port \gset
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\c - - - :worker_1_port
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SET search_path TO split_shard_replication_setup_schema;
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SET client_min_messages TO ERROR;
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-- Create publication at worker1
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SET citus.enable_ddl_propagation TO off;
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CREATE PUBLICATION pub1 for table table_to_split_1, table_to_split_2, table_to_split_3;
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RESET citus.enable_ddl_propagation;
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-- Worker1 is target for table_to_split_2 and table_to_split_3
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SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
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ROW(1, 'id', 2, '-2147483648', '-1', :worker_1_node)::pg_catalog.split_shard_info,
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ROW(1, 'id', 3, '0', '2147483647', :worker_1_node)::pg_catalog.split_shard_info
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], 0);
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- we create replication slots with a name including the next_operation_id as a suffix
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-- if this test file fails, make sure you compare the next_operation_id output to the object name in the next command
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SHOW citus.next_operation_id;
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citus.next_operation_id
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---------------------------------------------------------------------
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0
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(1 row)
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SELECT slot_name AS local_slot FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_10_0', :worker_1_node), 'citus') \gset
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-- Create subscription at worker1 with copy_data to 'false' a
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BEGIN;
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CREATE SUBSCRIPTION local_subscription
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CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
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PUBLICATION pub1
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WITH (
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create_slot=false,
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enabled=true,
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slot_name=:local_slot,
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copy_data=false);
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COMMIT;
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INSERT INTO table_to_split_1 VALUES(100, 'a');
|
|
INSERT INTO table_to_split_1 VALUES(400, 'a');
|
|
INSERT INTO table_to_split_1 VALUES(500, 'a');
|
|
-- expect data to present in table_to_split_2/3 on worker1
|
|
SELECT * FROM table_to_split_1;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
400 | a
|
|
500 | a
|
|
(3 rows)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 1);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_to_split_2;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
400 | a
|
|
(1 row)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 2);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_to_split_3;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
500 | a
|
|
(2 rows)
|
|
|
|
DELETE FROM table_to_split_1;
|
|
SELECT wait_for_expected_rowcount_at_table('table_to_split_1', 0);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_to_split_1;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_to_split_2', 0);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_to_split_2;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_to_split_3', 0);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_to_split_3;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
-- clean up
|
|
DROP SUBSCRIPTION local_subscription;
|
|
DROP PUBLICATION pub1;
|
|
\c - - - :master_port
|
|
CREATE USER myuser;
|
|
CREATE USER admin_user;
|
|
GRANT USAGE, CREATE ON SCHEMA split_shard_replication_setup_schema, public to myuser;
|
|
GRANT USAGE, CREATE ON SCHEMA split_shard_replication_setup_schema, public to admin_user;
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.shard_count TO 1;
|
|
SET citus.next_shard_id TO 4;
|
|
SELECT nodeid AS worker_1_node FROM pg_dist_node WHERE nodeport=:worker_1_port \gset
|
|
SELECT nodeid AS worker_2_node FROM pg_dist_node WHERE nodeport=:worker_2_port \gset
|
|
\c - myuser - -
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.shard_count TO 1;
|
|
SET citus.next_shard_id TO 4;
|
|
CREATE TABLE table_first (id bigserial PRIMARY KEY, value char);
|
|
SELECT create_distributed_table('table_first','id');
|
|
create_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
\c - admin_user - -
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET citus.next_shard_id TO 7;
|
|
SET citus.shard_count TO 1;
|
|
CREATE TABLE table_second (id bigserial PRIMARY KEY, value char);
|
|
SELECT create_distributed_table('table_second', 'id', colocate_with => 'table_first');
|
|
create_distributed_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
\c - myuser - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
CREATE TABLE table_first_5(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_first_6(id bigserial PRIMARY KEY, value char);
|
|
\c - myuser - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
CREATE TABLE table_first_4(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_first_5(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_first_6(id bigserial PRIMARY KEY, value char);
|
|
\c - admin_user - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
CREATE TABLE table_second_8(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_second_9(id bigserial PRIMARY KEY, value char);
|
|
\c - admin_user - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
CREATE TABLE table_second_7(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_second_8(id bigserial PRIMARY KEY, value char);
|
|
CREATE TABLE table_second_9(id bigserial PRIMARY KEY, value char);
|
|
--- Test scenario one starts from here
|
|
--- 1. table_first and table_second are colocated tables.
|
|
--- 2. myuser is the owner table_first and admin_user is the owner of table_second.
|
|
--- 3. Shard table_first_4 and table_second_7 are colocated on worker1
|
|
--- 4. table_first_4 is split into table_first_5 and table_first_6 with target as worker2
|
|
--- 5. table_second_7 is split into table_second_8 and table_second_9 with target as worker2
|
|
--- 6. Create two publishers and two subscribers for respective table owners.
|
|
--- 7. Insert into table_first_4 and table_second_7 at source worker1
|
|
--- 8. Expect the results in child shards on worker2
|
|
-- Create publication at worker1
|
|
\c - postgres - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET citus.enable_ddl_propagation TO off;
|
|
CREATE PUBLICATION pub1 FOR TABLE table_first_4, table_first_5, table_first_6;
|
|
CREATE PUBLICATION pub2 FOR TABLE table_second_7, table_second_8, table_second_9;
|
|
RESET citus.enable_ddl_propagation;
|
|
SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
|
|
ROW(4, 'id', 5, '-2147483648', '-1', :worker_2_node)::pg_catalog.split_shard_info,
|
|
ROW(4, 'id', 6, '0', '2147483647', :worker_2_node)::pg_catalog.split_shard_info,
|
|
ROW(7, 'id', 8, '-2147483648', '-1', :worker_2_node)::pg_catalog.split_shard_info,
|
|
ROW(7, 'id', 9, '0', '2147483647', :worker_2_node)::pg_catalog.split_shard_info
|
|
], 0);
|
|
WARNING: Previous split shard worflow was not successfully and could not complete the cleanup phase. Continuing with the current split shard workflow.
|
|
count
|
|
---------------------------------------------------------------------
|
|
2
|
|
(1 row)
|
|
|
|
SELECT relowner AS table_owner_one FROM pg_class WHERE relname='table_first' \gset
|
|
SELECT relowner AS table_owner_two FROM pg_class WHERE relname='table_second' \gset
|
|
-- we create replication slots with a name including the next_operation_id as a suffix
|
|
-- if this test file fails, make sure you compare the next_operation_id output to the object name in the next command
|
|
SHOW citus.next_operation_id;
|
|
citus.next_operation_id
|
|
---------------------------------------------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT slot_name AS slot_for_first_owner FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_%s_0', :worker_2_node, :table_owner_one), 'citus') \gset
|
|
SELECT slot_name AS slot_for_second_owner FROM pg_create_logical_replication_slot(FORMAT('citus_shard_split_slot_%s_%s_0', :worker_2_node, :table_owner_two), 'citus') \gset
|
|
-- Create subscription at worker2 with copy_data to 'false'
|
|
\c - postgres - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET client_min_messages TO WARNING;
|
|
CREATE SUBSCRIPTION sub1
|
|
CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
|
|
PUBLICATION pub1
|
|
WITH (
|
|
create_slot=false,
|
|
enabled=true,
|
|
slot_name=:slot_for_first_owner,
|
|
copy_data=false);
|
|
\c - myuser - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
INSERT INTO table_first_4 VALUES(100, 'a');
|
|
INSERT INTO table_first_4 VALUES(400, 'a');
|
|
INSERT INTO table_first_4 VALUES(500, 'a');
|
|
SELECT wait_for_expected_rowcount_at_table('table_first_4', 3);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_first_4;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
400 | a
|
|
500 | a
|
|
(3 rows)
|
|
|
|
\c - admin_user - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
INSERT INTO table_second_7 VALUES(100, 'a');
|
|
INSERT INTO table_second_7 VALUES(400, 'a');
|
|
SELECT wait_for_expected_rowcount_at_table('table_second_7', 2);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_second_7;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
400 | a
|
|
(2 rows)
|
|
|
|
-- expect data in table_first_5/6
|
|
\c - myuser - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SELECT * FROM table_first_4;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_first_5', 1);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_first_5;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
400 | a
|
|
(1 row)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_first_6', 2);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_first_6;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
500 | a
|
|
(2 rows)
|
|
|
|
-- should have zero rows in all the below tables as the subscription is not yet created for admin_user
|
|
\c - admin_user - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SELECT * FROM table_second_7;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT * FROM table_second_8;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT * FROM table_second_9;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
\c - postgres - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET client_min_messages TO WARNING;
|
|
CREATE SUBSCRIPTION sub2
|
|
CONNECTION 'host=localhost port=xxxxx user=postgres dbname=regression'
|
|
PUBLICATION pub2
|
|
WITH (
|
|
create_slot=false,
|
|
enabled=true,
|
|
slot_name=:slot_for_second_owner,
|
|
copy_data=false);
|
|
-- expect data
|
|
\c - admin_user - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SELECT * FROM table_second_7;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
(0 rows)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_second_8', 1);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_second_8;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
400 | a
|
|
(1 row)
|
|
|
|
SELECT wait_for_expected_rowcount_at_table('table_second_9', 1);
|
|
wait_for_expected_rowcount_at_table
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT * FROM table_second_9;
|
|
id | value
|
|
---------------------------------------------------------------------
|
|
100 | a
|
|
(1 row)
|
|
|
|
\c - postgres - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
DROP PUBLICATION pub1;
|
|
DROP PUBLICATION pub2;
|
|
\c - postgres - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET client_min_messages TO ERROR;
|
|
DROP SUBSCRIPTION sub1;
|
|
DROP SUBSCRIPTION sub2;
|
|
\c - - - :master_port
|
|
-- Test Secneario
|
|
-- 1) Setup shared memory segment by calling worker_split_shard_replication_setup.
|
|
-- 2) Redo step 1 as the earlier memory. Redoing will trigger warning as earlier memory isn't released.
|
|
-- 3) Execute worker_split_shard_release_dsm to release the dynamic shared memory segment
|
|
-- 4) Redo step 1 and expect no warning as the earlier memory is cleanedup.
|
|
SELECT nodeid AS worker_1_node FROM pg_dist_node WHERE nodeport=:worker_1_port \gset
|
|
SELECT nodeid AS worker_2_node FROM pg_dist_node WHERE nodeport=:worker_2_port \gset
|
|
\c - - - :worker_1_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
SET client_min_messages TO ERROR;
|
|
SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
|
|
ROW(1, 'id', 2, '-2147483648', '-1', :worker_1_node)::pg_catalog.split_shard_info,
|
|
ROW(1, 'id', 3, '0', '2147483647', :worker_1_node)::pg_catalog.split_shard_info
|
|
], 0);
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SET client_min_messages TO WARNING;
|
|
SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
|
|
ROW(1, 'id', 2, '-2147483648', '-1', :worker_1_node)::pg_catalog.split_shard_info,
|
|
ROW(1, 'id', 3, '0', '2147483647', :worker_1_node)::pg_catalog.split_shard_info
|
|
], 0);
|
|
WARNING: Previous split shard worflow was not successfully and could not complete the cleanup phase. Continuing with the current split shard workflow.
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT pg_catalog.worker_split_shard_release_dsm();
|
|
worker_split_shard_release_dsm
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_catalog.worker_split_shard_replication_setup(ARRAY[
|
|
ROW(1, 'id', 2, '-2147483648', '-1', :worker_1_node)::pg_catalog.split_shard_info,
|
|
ROW(1, 'id', 3, '0', '2147483647', :worker_1_node)::pg_catalog.split_shard_info
|
|
], 0);
|
|
count
|
|
---------------------------------------------------------------------
|
|
1
|
|
(1 row)
|
|
|
|
SELECT pg_catalog.worker_split_shard_release_dsm();
|
|
worker_split_shard_release_dsm
|
|
---------------------------------------------------------------------
|
|
|
|
(1 row)
|
|
|
|
-- cleanup, we are done with these manually created test tables
|
|
DROP TABLE table_to_split_1, table_to_split_2, table_to_split_3;
|
|
\c - - - :worker_2_port
|
|
SET search_path TO split_shard_replication_setup_schema;
|
|
DROP TABLE table_to_split_1, table_to_split_2, table_to_split_3;
|
|
\c - - - :master_port
|
|
CALL pg_catalog.citus_cleanup_orphaned_resources();
|
|
SET client_min_messages TO ERROR;
|
|
DROP SCHEMA split_shard_replication_setup_schema CASCADE;
|
|
DROP OWNED BY myuser;
|
|
DROP USER myuser;
|
|
DROP OWNED BY admin_user;
|
|
DROP USER admin_user;
|