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Add regression tests for LOCK command citus.use_secondary_nodes=always mode

pull/6057/head
Onder Kalaci 2022-07-13 14:27:11 +02:00
parent b2e9a5baf1
commit 3c343d4563
2 changed files with 41 additions and 0 deletions
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27
src/test/regress/expected/multi_follower_dml.out
View File

@ -354,6 +354,33 @@ ERROR: writing to worker nodes is not currently allowed
DETAIL: citus.use_secondary_nodes is set to 'always'
SELECT * FROM citus_local_table ORDER BY a;
ERROR: there is a shard placement in node group 0 but there are no nodes in that group
\c "port=57636 dbname=regression options='-c\ citus.use_secondary_nodes=always\ -c\ citus.cluster_name=second-cluster'"
-- when an existing read-replica is forked to become
-- another primary node, we sometimes have to use citus.use_secondary_nodes=always
-- even if the node is not in recovery mode. In those cases, allow LOCK
-- command on local / metadata tables, and also certain UDFs
SHOW citus.use_secondary_nodes;
citus.use_secondary_nodes
---------------------------------------------------------------------
always
(1 row)
SELECT pg_is_in_recovery();
pg_is_in_recovery
---------------------------------------------------------------------
f
(1 row)
SELECT citus_is_coordinator();
citus_is_coordinator
---------------------------------------------------------------------
t
(1 row)
BEGIN;
LOCK TABLE pg_dist_node IN SHARE ROW EXCLUSIVE MODE;
LOCK TABLE local IN SHARE ROW EXCLUSIVE MODE;
COMMIT;
\c -reuse-previous=off regression - - :master_port
DROP TABLE the_table;
DROP TABLE reference_table;

14
src/test/regress/sql/multi_follower_dml.sql
View File

@ -163,6 +163,20 @@ SELECT * FROM reference_table ORDER BY a;
INSERT INTO citus_local_table (a, b, z) VALUES (1, 2, 3);
SELECT * FROM citus_local_table ORDER BY a;
\c "port=57636 dbname=regression options='-c\ citus.use_secondary_nodes=always\ -c\ citus.cluster_name=second-cluster'"
-- when an existing read-replica is forked to become
-- another primary node, we sometimes have to use citus.use_secondary_nodes=always
-- even if the node is not in recovery mode. In those cases, allow LOCK
-- command on local / metadata tables, and also certain UDFs
SHOW citus.use_secondary_nodes;
SELECT pg_is_in_recovery();
SELECT citus_is_coordinator();
BEGIN;
LOCK TABLE pg_dist_node IN SHARE ROW EXCLUSIVE MODE;
LOCK TABLE local IN SHARE ROW EXCLUSIVE MODE;
COMMIT;
\c -reuse-previous=off regression - - :master_port
DROP TABLE the_table;
DROP TABLE reference_table;