mirror of https://github.com/citusdata/citus.git
299 lines
8.0 KiB
Plaintext
299 lines
8.0 KiB
Plaintext
-- Test creation of mx tables and metadata syncing
|
|
-- Temporarily disable automatic 2PC recovery
|
|
ALTER SYSTEM SET citus.recover_2pc_interval TO -1;
|
|
SELECT pg_reload_conf();
|
|
pg_reload_conf
|
|
----------------
|
|
t
|
|
(1 row)
|
|
|
|
-- get rid of the previously created entries in pg_dist_transaction
|
|
-- for the sake of getting consistent results in this test file
|
|
TRUNCATE pg_dist_transaction;
|
|
CREATE TABLE distributed_mx_table (
|
|
key text primary key,
|
|
value jsonb
|
|
);
|
|
CREATE INDEX ON distributed_mx_table USING GIN (value);
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.replication_model TO streaming;
|
|
SET citus.shard_count TO 4;
|
|
SELECT create_distributed_table('distributed_mx_table', 'key');
|
|
create_distributed_table
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
-- Verify that we've logged commit records
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
-------
|
|
2
|
|
(1 row)
|
|
|
|
-- Confirm that the metadata transactions have been committed
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
-------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- Verify that the commit records have been removed
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
\c - - - :worker_1_port
|
|
SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
|
|
Column | Type | Modifiers
|
|
--------+-------+-----------
|
|
key | text | not null
|
|
value | jsonb |
|
|
(2 rows)
|
|
|
|
SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
|
|
relid = 'distributed_mx_table_pkey'::regclass;
|
|
Column | Type | Definition
|
|
--------+------+------------
|
|
key | text | key
|
|
(1 row)
|
|
|
|
SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
|
|
relid = 'distributed_mx_table_value_idx'::regclass;
|
|
Column | Type | Definition
|
|
--------+------+------------
|
|
value | text | value
|
|
(1 row)
|
|
|
|
SELECT repmodel FROM pg_dist_partition
|
|
WHERE logicalrelid = 'distributed_mx_table'::regclass;
|
|
repmodel
|
|
----------
|
|
s
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
|
|
WHERE logicalrelid = 'distributed_mx_table'::regclass;
|
|
count
|
|
-------
|
|
4
|
|
(1 row)
|
|
|
|
\c - - - :worker_2_port
|
|
SELECT "Column", "Type", "Modifiers" FROM table_desc WHERE relid='distributed_mx_table'::regclass;
|
|
Column | Type | Modifiers
|
|
--------+-------+-----------
|
|
key | text | not null
|
|
value | jsonb |
|
|
(2 rows)
|
|
|
|
SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
|
|
relid = 'distributed_mx_table_pkey'::regclass;
|
|
Column | Type | Definition
|
|
--------+------+------------
|
|
key | text | key
|
|
(1 row)
|
|
|
|
SELECT "Column", "Type", "Definition" FROM index_attrs WHERE
|
|
relid = 'distributed_mx_table_value_idx'::regclass;
|
|
Column | Type | Definition
|
|
--------+------+------------
|
|
value | text | value
|
|
(1 row)
|
|
|
|
SELECT repmodel FROM pg_dist_partition
|
|
WHERE logicalrelid = 'distributed_mx_table'::regclass;
|
|
repmodel
|
|
----------
|
|
s
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
|
|
WHERE logicalrelid = 'distributed_mx_table'::regclass;
|
|
count
|
|
-------
|
|
4
|
|
(1 row)
|
|
|
|
-- Create a table and then roll back the transaction
|
|
\c - - - :master_port
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.replication_model TO streaming;
|
|
BEGIN;
|
|
CREATE TABLE should_not_exist (
|
|
key text primary key,
|
|
value jsonb
|
|
);
|
|
SELECT create_distributed_table('should_not_exist', 'key');
|
|
create_distributed_table
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
ABORT;
|
|
-- Verify that the table does not exist on the worker
|
|
\c - - - :worker_1_port
|
|
SELECT count(*) FROM pg_tables WHERE tablename = 'should_not_exist';
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
-- Ensure that we don't allow prepare on a metadata transaction
|
|
\c - - - :master_port
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.replication_model TO streaming;
|
|
BEGIN;
|
|
CREATE TABLE should_not_exist (
|
|
key text primary key,
|
|
value jsonb
|
|
);
|
|
SELECT create_distributed_table('should_not_exist', 'key');
|
|
create_distributed_table
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
PREPARE TRANSACTION 'this_should_fail';
|
|
ERROR: cannot use 2PC in transactions involving multiple servers
|
|
-- now show that we can create tables and schemas withing a single transaction
|
|
BEGIN;
|
|
CREATE SCHEMA IF NOT EXISTS citus_mx_schema_for_xacts;
|
|
SET search_path TO citus_mx_schema_for_xacts;
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.shard_count TO 1;
|
|
CREATE TABLE objects_for_xacts (
|
|
id bigint PRIMARY KEY,
|
|
name text NOT NULL
|
|
);
|
|
SELECT create_distributed_table('objects_for_xacts', 'id');
|
|
create_distributed_table
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
COMMIT;
|
|
-- see that the table actually created and distributed
|
|
\c - - - :worker_1_port
|
|
SELECT repmodel FROM pg_dist_partition
|
|
WHERE logicalrelid = 'citus_mx_schema_for_xacts.objects_for_xacts'::regclass;
|
|
repmodel
|
|
----------
|
|
s
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_shard JOIN pg_dist_shard_placement USING (shardid)
|
|
WHERE logicalrelid = 'citus_mx_schema_for_xacts.objects_for_xacts'::regclass;
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
\c - - - :master_port
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.replication_model TO streaming;
|
|
-- now show that we can rollback on creating mx table, but shards remain....
|
|
BEGIN;
|
|
CREATE SCHEMA IF NOT EXISTS citus_mx_schema_for_xacts;
|
|
NOTICE: schema "citus_mx_schema_for_xacts" already exists, skipping
|
|
SET search_path TO citus_mx_schema_for_xacts;
|
|
SET citus.shard_replication_factor TO 1;
|
|
SET citus.shard_count TO 2;
|
|
CREATE TABLE objects_for_xacts2 (
|
|
id bigint PRIMARY KEY,
|
|
name text NOT NULL
|
|
);
|
|
SELECT create_distributed_table('objects_for_xacts2', 'id');
|
|
create_distributed_table
|
|
--------------------------
|
|
|
|
(1 row)
|
|
|
|
ROLLBACK;
|
|
-- show that the table not exists on the coordinator
|
|
SELECT count(*) FROM pg_tables WHERE tablename = 'objects_for_xacts2' and schemaname = 'citus_mx_schema_for_xacts';
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
\c - - - :worker_1_port
|
|
-- the distributed table not exists on the worker node
|
|
SELECT count(*) FROM pg_tables WHERE tablename = 'objects_for_xacts2' and schemaname = 'citus_mx_schema_for_xacts';
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
-- shard also does not exist since we create shards in a transaction
|
|
SELECT count(*) FROM pg_tables WHERE tablename LIKE 'objects_for_xacts2_%' and schemaname = 'citus_mx_schema_for_xacts';
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
-- make sure that master_drop_all_shards does not work from the worker nodes
|
|
SELECT master_drop_all_shards('citus_mx_schema_for_xacts.objects_for_xacts'::regclass, 'citus_mx_schema_for_xacts', 'objects_for_xacts');
|
|
ERROR: operation is not allowed on this node
|
|
HINT: Connect to the coordinator and run it again.
|
|
-- Ensure pg_dist_transaction is empty for test
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
-------------------------------
|
|
0
|
|
(1 row)
|
|
|
|
-- Create some "fake" prepared transactions to recover
|
|
\c - - - :worker_1_port
|
|
BEGIN;
|
|
CREATE TABLE should_abort (value int);
|
|
PREPARE TRANSACTION 'citus_0_should_abort';
|
|
BEGIN;
|
|
CREATE TABLE should_commit (value int);
|
|
PREPARE TRANSACTION 'citus_0_should_commit';
|
|
BEGIN;
|
|
CREATE TABLE should_be_sorted_into_middle (value int);
|
|
PREPARE TRANSACTION 'citus_0_should_be_sorted_into_middle';
|
|
\c - - - :master_port
|
|
-- Add "fake" pg_dist_transaction records and run recovery
|
|
SELECT groupid AS worker_1_group FROM pg_dist_node WHERE nodeport = :worker_1_port \gset
|
|
INSERT INTO pg_dist_transaction VALUES (:worker_1_group, 'citus_0_should_commit');
|
|
INSERT INTO pg_dist_transaction VALUES (:worker_1_group, 'citus_0_should_be_forgotten');
|
|
SELECT recover_prepared_transactions();
|
|
recover_prepared_transactions
|
|
-------------------------------
|
|
3
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_dist_transaction;
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
-- Confirm that transactions were correctly rolled forward
|
|
\c - - - :worker_1_port
|
|
SELECT count(*) FROM pg_tables WHERE tablename = 'should_abort';
|
|
count
|
|
-------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT count(*) FROM pg_tables WHERE tablename = 'should_commit';
|
|
count
|
|
-------
|
|
1
|
|
(1 row)
|
|
|
|
-- Resume ordinary recovery
|
|
\c - - - :master_port
|
|
ALTER SYSTEM RESET citus.recover_2pc_interval;
|
|
SELECT pg_reload_conf();
|
|
pg_reload_conf
|
|
----------------
|
|
t
|
|
(1 row)
|
|
|