mirror of https://github.com/citusdata/citus.git
260 lines
8.5 KiB
PL/PgSQL
260 lines
8.5 KiB
PL/PgSQL
-- Test creation of mx tables and metadata syncing
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-- Temporarily disable automatic 2PC recovery
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ALTER SYSTEM SET citus.recover_2pc_interval TO -1;
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SELECT pg_reload_conf();
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-- pg 10 and pg 11 has different error messages for acl checks
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-- so catch them and print only one type of error message to prevent
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-- multiple output test files
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CREATE OR REPLACE FUNCTION raise_failed_aclcheck(query text) RETURNS void AS $$
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BEGIN
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EXECUTE query;
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EXCEPTION WHEN OTHERS THEN
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IF SQLERRM LIKE 'must be owner of%' THEN
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RAISE 'must be owner of the object';
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END IF;
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END;
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$$LANGUAGE plpgsql;
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-- get rid of the previously created entries in pg_dist_transaction
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-- for the sake of getting consistent results in this test file
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TRUNCATE pg_dist_transaction;
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CREATE TABLE distributed_mx_table (
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key text primary key,
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value jsonb,
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some_val bigserial
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);
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CREATE INDEX ON distributed_mx_table USING GIN (value);
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SET citus.shard_replication_factor TO 1;
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SET citus.shard_count TO 4;
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SELECT create_distributed_table('distributed_mx_table', 'key');
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-- Verify that we've logged commit records
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SELECT count(*) FROM pg_dist_transaction;
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-- Confirm that the metadata transactions have been committed
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SELECT recover_prepared_transactions();
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-- Verify that the commit records have been removed
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SELECT count(*) FROM pg_dist_transaction;
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\c - - - :worker_1_port
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SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
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SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
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relid = 'distributed_mx_table_pkey'::regclass;
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SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
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relid = 'distributed_mx_table_value_idx'::regclass;
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SELECT repmodel FROM pg_dist_partition
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WHERE logicalrelid = 'distributed_mx_table'::regclass;
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SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
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WHERE logicalrelid = 'distributed_mx_table'::regclass;
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\c - - - :worker_2_port
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SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
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SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
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relid = 'distributed_mx_table_pkey'::regclass;
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SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
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relid = 'distributed_mx_table_value_idx'::regclass;
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SELECT repmodel FROM pg_dist_partition
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WHERE logicalrelid = 'distributed_mx_table'::regclass;
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SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
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WHERE logicalrelid = 'distributed_mx_table'::regclass;
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-- Create a table and then roll back the transaction
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\c - - - :master_port
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SET citus.shard_replication_factor TO 1;
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BEGIN;
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CREATE TABLE should_not_exist (
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key text primary key,
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value jsonb
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);
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SELECT create_distributed_table('should_not_exist', 'key');
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ABORT;
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-- Verify that the table does not exist on the worker
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\c - - - :worker_1_port
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SELECT count(*) FROM pg_tables WHERE tablename = 'should_not_exist';
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-- Ensure that we don't allow prepare on a metadata transaction
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\c - - - :master_port
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SET citus.shard_replication_factor TO 1;
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BEGIN;
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CREATE TABLE should_not_exist (
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key text primary key,
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value jsonb
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);
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SELECT create_distributed_table('should_not_exist', 'key');
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PREPARE TRANSACTION 'this_should_fail';
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-- now show that we can create tables and schemas withing a single transaction
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BEGIN;
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CREATE SCHEMA IF NOT EXISTS citus_mx_schema_for_xacts;
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SET search_path TO citus_mx_schema_for_xacts;
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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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CREATE TABLE objects_for_xacts (
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id bigint PRIMARY KEY,
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name text NOT NULL
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);
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SELECT create_distributed_table('objects_for_xacts', 'id');
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COMMIT;
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-- see that the table actually created and distributed
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\c - - - :worker_1_port
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SELECT repmodel FROM pg_dist_partition
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WHERE logicalrelid = 'citus_mx_schema_for_xacts.objects_for_xacts'::regclass;
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SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
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WHERE logicalrelid = 'citus_mx_schema_for_xacts.objects_for_xacts'::regclass;
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\c - - - :master_port
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SET citus.shard_replication_factor TO 1;
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-- now show that we can rollback on creating mx table, but shards remain....
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BEGIN;
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CREATE SCHEMA IF NOT EXISTS citus_mx_schema_for_xacts;
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SET search_path TO citus_mx_schema_for_xacts;
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SET citus.shard_replication_factor TO 1;
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SET citus.shard_count TO 2;
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CREATE TABLE objects_for_xacts2 (
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id bigint PRIMARY KEY,
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name text NOT NULL
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);
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SELECT create_distributed_table('objects_for_xacts2', 'id');
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ROLLBACK;
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-- show that the table not exists on the coordinator
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SELECT count(*) FROM pg_tables WHERE tablename = 'objects_for_xacts2' and schemaname = 'citus_mx_schema_for_xacts';
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\c - - - :worker_1_port
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-- the distributed table not exists on the worker node
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SELECT count(*) FROM pg_tables WHERE tablename = 'objects_for_xacts2' and schemaname = 'citus_mx_schema_for_xacts';
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-- shard also does not exist since we create shards in a transaction
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SELECT count(*) FROM pg_tables WHERE tablename LIKE 'objects_for_xacts2_%' and schemaname = 'citus_mx_schema_for_xacts';
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-- make sure that citus_drop_all_shards does not work from the worker nodes
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SELECT citus_drop_all_shards('citus_mx_schema_for_xacts.objects_for_xacts'::regclass, 'citus_mx_schema_for_xacts', 'objects_for_xacts');
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-- Ensure pg_dist_transaction is empty for test
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SELECT recover_prepared_transactions();
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-- Create some "fake" prepared transactions to recover
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\c - - - :worker_1_port
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BEGIN;
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CREATE TABLE should_abort (value int);
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PREPARE TRANSACTION 'citus_0_should_abort';
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BEGIN;
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CREATE TABLE should_commit (value int);
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PREPARE TRANSACTION 'citus_0_should_commit';
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BEGIN;
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CREATE TABLE should_be_sorted_into_middle (value int);
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PREPARE TRANSACTION 'citus_0_should_be_sorted_into_middle';
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\c - - - :master_port
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-- Add "fake" pg_dist_transaction records and run recovery
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SELECT groupid AS worker_1_group FROM pg_dist_node WHERE nodeport = :worker_1_port \gset
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INSERT INTO pg_dist_transaction VALUES (:worker_1_group, 'citus_0_should_commit');
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INSERT INTO pg_dist_transaction VALUES (:worker_1_group, 'citus_0_should_be_forgotten');
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SELECT recover_prepared_transactions();
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SELECT count(*) FROM pg_dist_transaction;
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-- Confirm that transactions were correctly rolled forward
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\c - - - :worker_1_port
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SELECT count(*) FROM pg_tables WHERE tablename = 'should_abort';
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SELECT count(*) FROM pg_tables WHERE tablename = 'should_commit';
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\c - - - :master_port
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CREATE USER no_access_mx;
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SELECT run_command_on_workers($$CREATE USER no_access_mx;$$);
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SET ROLE no_access_mx;
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SELECT raise_failed_aclcheck($$
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DROP TABLE distributed_mx_table;
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$$);
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SELECT raise_failed_aclcheck($$
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SELECT master_remove_distributed_table_metadata_from_workers('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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$$);
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SELECT raise_failed_aclcheck($$
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SELECT citus_drop_all_shards('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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$$);
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SELECT raise_failed_aclcheck($$
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SELECT master_remove_partition_metadata('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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$$);
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-- make sure that we can drop unrelated tables/sequences
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CREATE TABLE unrelated_table(key serial);
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DROP TABLE unrelated_table;
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\c - postgres - :master_port
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-- finally make sure that the sequence remains
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SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
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\c - no_access_mx - :worker_1_port
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-- see the comment in the top of the file
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CREATE OR REPLACE FUNCTION raise_failed_aclcheck(query text) RETURNS void AS $$
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BEGIN
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EXECUTE query;
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EXCEPTION WHEN OTHERS THEN
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IF SQLERRM LIKE 'must be owner of%' THEN
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RAISE 'must be owner of the object';
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END IF;
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END;
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$$LANGUAGE plpgsql;
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SELECT raise_failed_aclcheck($$
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DROP TABLE distributed_mx_table;
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$$);
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SELECT raise_failed_aclcheck($$
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SELECT master_remove_distributed_table_metadata_from_workers('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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$$);
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SELECT raise_failed_aclcheck($$
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SELECT master_drop_sequences(ARRAY['public.distributed_mx_table_some_val_seq']);
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$$);
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SELECT citus_drop_all_shards('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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SELECT master_remove_partition_metadata('distributed_mx_table'::regclass, 'public', 'distributed_mx_table');
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-- make sure that we can drop unrelated tables/sequences
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CREATE TABLE unrelated_table(key serial);
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DROP TABLE unrelated_table;
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\c - postgres - :worker_1_port
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-- finally make sure that the sequence remains
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SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
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-- Resume ordinary recovery
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\c - postgres - :master_port
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ALTER SYSTEM RESET citus.recover_2pc_interval;
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SELECT pg_reload_conf();
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