mirror of https://github.com/citusdata/citus.git
Add failure tests for multi-shard update/delete
Failure tests for update/delete on hash distributed tables using 1PC and 2PCpull/2318/head
Murat Tuncer
parent
322dd54eee
commit
6c66033455
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@ -0,0 +1,692 @@
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--
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-- failure_multi_shard_update_delete
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--
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CREATE SCHEMA IF NOT EXISTS multi_shard;
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SET SEARCH_PATH = multi_shard;
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SET citus.shard_count TO 4;
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SET citus.next_shard_id TO 201000;
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SET citus.shard_replication_factor TO 1;
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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CREATE TABLE t1(a int PRIMARY KEY, b int, c int);
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CREATE TABLE r1(a int, b int PRIMARY KEY);
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CREATE TABLE t2(a int REFERENCES t1(a) ON DELETE CASCADE, b int REFERENCES r1(b) ON DELETE CASCADE, c int);
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SELECT create_distributed_table('t1', 'a');
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create_distributed_table
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--------------------------
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(1 row)
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SELECT create_reference_table('r1');
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create_reference_table
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------------------------
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(1 row)
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SELECT create_distributed_table('t2', 'a');
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create_distributed_table
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--------------------------
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(1 row)
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-- insert some data
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INSERT INTO r1 VALUES (1, 1), (2, 2), (3, 3);
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INSERT INTO t1 VALUES (1, 1, 1), (2, 2, 2), (3, 3, 3);
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INSERT INTO t2 VALUES (1, 1, 1), (1, 2, 1), (2, 1, 2), (2, 2, 4), (3, 1, 3), (3, 2, 3), (3, 3, 3);
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SELECT pg_backend_pid() as pid \gset
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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SHOW citus.multi_shard_commit_protocol ;
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citus.multi_shard_commit_protocol
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-----------------------------------
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2pc
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(1 row)
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-- DELETION TESTS
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-- delete using a filter on non-partition column filter
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-- test both kill and cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard delete
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DELETE FROM t2 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- kill just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").kill()');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM t2 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard delete
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DELETE FROM t2 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- cancel just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM t2 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- UPDATE TESTS
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-- update non-partition column based on a filter on another non-partition column
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-- DELETION TESTS
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-- delete using a filter on non-partition column filter
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-- test both kill and cancellation
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").kill()');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard update
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- kill just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").kill()');
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mitmproxy
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-----------
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(1 row)
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard update
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- cancel just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- switch to 1PC
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SET citus.multi_shard_commit_protocol TO '1PC';
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-- DELETION TESTS
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-- delete using a filter on non-partition column filter
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-- test both kill and cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard delete
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DELETE FROM t2 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- kill just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").kill()');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM t2 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard delete
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DELETE FROM t2 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- cancel just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM t2 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is deleted
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SELECT count(*) FROM t2;
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count
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-------
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7
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(1 row)
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-- UPDATE TESTS
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-- update non-partition column based on a filter on another non-partition column
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-- DELETION TESTS
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-- delete using a filter on non-partition column filter
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-- test both kill and cancellation
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").kill()');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard update
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- kill just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").kill()');
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mitmproxy
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-----------
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(1 row)
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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-- issue a multi shard update
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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-- cancel just one connection
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SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").cancel(' || :pid || ')');
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mitmproxy
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-----------
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(1 row)
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UPDATE t2 SET c = 4 WHERE b = 2;
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ERROR: canceling statement due to user request
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-- verify nothing is updated
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SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
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b2 | c4
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----+----
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3 | 1
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(1 row)
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RESET citus.multi_shard_commit_protocol;
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--
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-- fail when cascading deletes from foreign key
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-- unfortunately cascading deletes from foreign keys
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-- are done inside the worker only and do not
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-- generate any network output
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-- therefore we can't just fail cascade part
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-- following tests are added for completeness purposes
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-- it is safe to remove them without reducing any
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-- test coverage
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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-- check counts before delete
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SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
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b2
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----
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3
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(1 row)
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM r1 WHERE a = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
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b2
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----
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3
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(1 row)
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SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
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mitmproxy
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-----------
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(1 row)
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DELETE FROM t2 WHERE b = 2;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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-- verify nothing is deleted
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SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
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b2
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----
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3
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(1 row)
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-- test update with subquery pull
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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CREATE TABLE t3 AS SELECT * FROM t2;
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SELECT create_distributed_table('t3', 'a');
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NOTICE: Copying data from local table...
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create_distributed_table
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--------------------------
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(1 row)
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SELECT * FROM t3 ORDER BY 1, 2, 3;
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a | b | c
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---+---+---
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1 | 1 | 1
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1 | 2 | 1
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2 | 1 | 2
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2 | 2 | 4
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3 | 1 | 3
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3 | 2 | 3
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3 | 3 | 3
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(7 rows)
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SELECT citus.mitmproxy('conn.onQuery(query="^COPY").kill()');
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mitmproxy
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-----------
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(1 row)
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UPDATE t3 SET c = q.c FROM (
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SELECT b, max(c) as c FROM t2 GROUP BY b) q
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WHERE t3.b = q.b
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RETURNING *;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
|
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--- verify nothing is updated
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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SELECT * FROM t3 ORDER BY 1, 2, 3;
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a | b | c
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---+---+---
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1 | 1 | 1
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1 | 2 | 1
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2 | 1 | 2
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2 | 2 | 4
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3 | 1 | 3
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3 | 2 | 3
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3 | 3 | 3
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(7 rows)
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-- kill update part
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SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE multi_shard.t3_201009").kill()');
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mitmproxy
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-----------
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(1 row)
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UPDATE t3 SET c = q.c FROM (
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SELECT b, max(c) as c FROM t2 GROUP BY b) q
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WHERE t3.b = q.b
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RETURNING *;
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ERROR: server closed the connection unexpectedly
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This probably means the server terminated abnormally
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before or while processing the request.
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CONTEXT: while executing command on localhost:9060
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--- verify nothing is updated
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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SELECT * FROM t3 ORDER BY 1, 2, 3;
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a | b | c
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---+---+---
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1 | 1 | 1
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1 | 2 | 1
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2 | 1 | 2
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2 | 2 | 4
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3 | 1 | 3
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3 | 2 | 3
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3 | 3 | 3
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(7 rows)
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-- test with replication_factor = 2
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-- table can not have foreign reference with this setting so
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-- use a different set of table
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SET citus.shard_replication_factor to 2;
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SELECT citus.mitmproxy('conn.allow()');
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mitmproxy
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-----------
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(1 row)
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DROP TABLE t3;
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CREATE TABLE t3 AS SELECT * FROM t2;
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SELECT create_distributed_table('t3', 'a');
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NOTICE: Copying data from local table...
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create_distributed_table
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--------------------------
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(1 row)
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|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
-- prevent update of one replica of one shard
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t3_201013").kill()');
|
||||
mitmproxy
|
||||
-----------
|
||||
|
||||
(1 row)
|
||||
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
ERROR: server closed the connection unexpectedly
|
||||
This probably means the server terminated abnormally
|
||||
before or while processing the request.
|
||||
CONTEXT: while executing command on localhost:9060
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
-- fail only one update verify transaction is rolled back correctly
|
||||
BEGIN;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
UPDATE t2 SET b = 2 WHERE b = 1;
|
||||
-- verify update is performed on t2
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
0 | 6
|
||||
(1 row)
|
||||
|
||||
-- following will fail
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
ERROR: server closed the connection unexpectedly
|
||||
This probably means the server terminated abnormally
|
||||
before or while processing the request.
|
||||
CONTEXT: while executing command on localhost:9060
|
||||
END;
|
||||
-- verify everything is rolled back
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
UPDATE t3 SET b = 1 WHERE b = 2 RETURNING *;
|
||||
ERROR: server closed the connection unexpectedly
|
||||
This probably means the server terminated abnormally
|
||||
before or while processing the request.
|
||||
CONTEXT: while executing command on localhost:9060
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
-- switch to 1PC
|
||||
SET citus.multi_shard_commit_protocol TO '1PC';
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
ERROR: server closed the connection unexpectedly
|
||||
This probably means the server terminated abnormally
|
||||
before or while processing the request.
|
||||
CONTEXT: while executing command on localhost:9060
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
-- fail only one update verify transaction is rolled back correctly
|
||||
BEGIN;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
UPDATE t2 SET b = 2 WHERE b = 1;
|
||||
-- verify update is performed on t2
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
0 | 6
|
||||
(1 row)
|
||||
|
||||
-- following will fail
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
ERROR: server closed the connection unexpectedly
|
||||
This probably means the server terminated abnormally
|
||||
before or while processing the request.
|
||||
CONTEXT: while executing command on localhost:9060
|
||||
END;
|
||||
-- verify everything is rolled back
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
b1 | b2
|
||||
----+----
|
||||
3 | 3
|
||||
(1 row)
|
||||
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
mitmproxy
|
||||
-----------
|
||||
|
||||
(1 row)
|
||||
|
||||
RESET SEARCH_PATH;
|
||||
DROP SCHEMA multi_shard CASCADE;
|
||||
NOTICE: drop cascades to 4 other objects
|
||||
DETAIL: drop cascades to table multi_shard.t1
|
||||
drop cascades to table multi_shard.r1
|
||||
drop cascades to table multi_shard.t2
|
||||
drop cascades to table multi_shard.t3
|
||||
|
|
@ -17,3 +17,4 @@ test: failure_create_table
|
|||
|
||||
test: failure_1pc_copy_hash
|
||||
test: failure_1pc_copy_append
|
||||
test: failure_multi_shard_update_delete
|
||||
|
|
|
|||
|
|
@ -0,0 +1,299 @@
|
|||
--
|
||||
-- failure_multi_shard_update_delete
|
||||
--
|
||||
|
||||
CREATE SCHEMA IF NOT EXISTS multi_shard;
|
||||
SET SEARCH_PATH = multi_shard;
|
||||
SET citus.shard_count TO 4;
|
||||
SET citus.next_shard_id TO 201000;
|
||||
SET citus.shard_replication_factor TO 1;
|
||||
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
|
||||
CREATE TABLE t1(a int PRIMARY KEY, b int, c int);
|
||||
CREATE TABLE r1(a int, b int PRIMARY KEY);
|
||||
CREATE TABLE t2(a int REFERENCES t1(a) ON DELETE CASCADE, b int REFERENCES r1(b) ON DELETE CASCADE, c int);
|
||||
|
||||
SELECT create_distributed_table('t1', 'a');
|
||||
SELECT create_reference_table('r1');
|
||||
SELECT create_distributed_table('t2', 'a');
|
||||
|
||||
-- insert some data
|
||||
INSERT INTO r1 VALUES (1, 1), (2, 2), (3, 3);
|
||||
INSERT INTO t1 VALUES (1, 1, 1), (2, 2, 2), (3, 3, 3);
|
||||
INSERT INTO t2 VALUES (1, 1, 1), (1, 2, 1), (2, 1, 2), (2, 2, 4), (3, 1, 3), (3, 2, 3), (3, 3, 3);
|
||||
|
||||
SELECT pg_backend_pid() as pid \gset
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
SHOW citus.multi_shard_commit_protocol ;
|
||||
|
||||
-- DELETION TESTS
|
||||
-- delete using a filter on non-partition column filter
|
||||
-- test both kill and cancellation
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
|
||||
-- issue a multi shard delete
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- kill just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").kill()');
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- cancellation
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").cancel(' || :pid || ')');
|
||||
-- issue a multi shard delete
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- cancel just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").cancel(' || :pid || ')');
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- UPDATE TESTS
|
||||
-- update non-partition column based on a filter on another non-partition column
|
||||
-- DELETION TESTS
|
||||
-- delete using a filter on non-partition column filter
|
||||
-- test both kill and cancellation
|
||||
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").kill()');
|
||||
-- issue a multi shard update
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- kill just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").kill()');
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- cancellation
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").cancel(' || :pid || ')');
|
||||
-- issue a multi shard update
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- cancel just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").cancel(' || :pid || ')');
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- switch to 1PC
|
||||
SET citus.multi_shard_commit_protocol TO '1PC';
|
||||
|
||||
-- DELETION TESTS
|
||||
-- delete using a filter on non-partition column filter
|
||||
-- test both kill and cancellation
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
|
||||
-- issue a multi shard delete
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- kill just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").kill()');
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- cancellation
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").cancel(' || :pid || ')');
|
||||
-- issue a multi shard delete
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- cancel just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM multi_shard.t2_201005").cancel(' || :pid || ')');
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FROM t2;
|
||||
|
||||
-- UPDATE TESTS
|
||||
-- update non-partition column based on a filter on another non-partition column
|
||||
-- DELETION TESTS
|
||||
-- delete using a filter on non-partition column filter
|
||||
-- test both kill and cancellation
|
||||
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").kill()');
|
||||
-- issue a multi shard update
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- kill just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").kill()');
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- cancellation
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE").cancel(' || :pid || ')');
|
||||
-- issue a multi shard update
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
-- cancel just one connection
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t2_201005").cancel(' || :pid || ')');
|
||||
UPDATE t2 SET c = 4 WHERE b = 2;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2, count(*) FILTER (WHERE c = 4) AS c4 FROM t2;
|
||||
|
||||
RESET citus.multi_shard_commit_protocol;
|
||||
|
||||
--
|
||||
-- fail when cascading deletes from foreign key
|
||||
-- unfortunately cascading deletes from foreign keys
|
||||
-- are done inside the worker only and do not
|
||||
-- generate any network output
|
||||
-- therefore we can't just fail cascade part
|
||||
-- following tests are added for completeness purposes
|
||||
-- it is safe to remove them without reducing any
|
||||
-- test coverage
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
-- check counts before delete
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
|
||||
DELETE FROM r1 WHERE a = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="DELETE FROM").kill()');
|
||||
|
||||
DELETE FROM t2 WHERE b = 2;
|
||||
|
||||
-- verify nothing is deleted
|
||||
SELECT count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
|
||||
-- test update with subquery pull
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
CREATE TABLE t3 AS SELECT * FROM t2;
|
||||
SELECT create_distributed_table('t3', 'a');
|
||||
SELECT * FROM t3 ORDER BY 1, 2, 3;
|
||||
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^COPY").kill()');
|
||||
|
||||
UPDATE t3 SET c = q.c FROM (
|
||||
SELECT b, max(c) as c FROM t2 GROUP BY b) q
|
||||
WHERE t3.b = q.b
|
||||
RETURNING *;
|
||||
|
||||
--- verify nothing is updated
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
SELECT * FROM t3 ORDER BY 1, 2, 3;
|
||||
|
||||
-- kill update part
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="^UPDATE multi_shard.t3_201009").kill()');
|
||||
UPDATE t3 SET c = q.c FROM (
|
||||
SELECT b, max(c) as c FROM t2 GROUP BY b) q
|
||||
WHERE t3.b = q.b
|
||||
RETURNING *;
|
||||
|
||||
--- verify nothing is updated
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
SELECT * FROM t3 ORDER BY 1, 2, 3;
|
||||
|
||||
-- test with replication_factor = 2
|
||||
-- table can not have foreign reference with this setting so
|
||||
-- use a different set of table
|
||||
|
||||
SET citus.shard_replication_factor to 2;
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
DROP TABLE t3;
|
||||
CREATE TABLE t3 AS SELECT * FROM t2;
|
||||
SELECT create_distributed_table('t3', 'a');
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
-- prevent update of one replica of one shard
|
||||
SELECT citus.mitmproxy('conn.onQuery(query="UPDATE multi_shard.t3_201013").kill()');
|
||||
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
-- fail only one update verify transaction is rolled back correctly
|
||||
BEGIN;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
UPDATE t2 SET b = 2 WHERE b = 1;
|
||||
-- verify update is performed on t2
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
-- following will fail
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
END;
|
||||
|
||||
-- verify everything is rolled back
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
UPDATE t3 SET b = 1 WHERE b = 2 RETURNING *;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
-- switch to 1PC
|
||||
SET citus.multi_shard_commit_protocol TO '1PC';
|
||||
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
|
||||
-- verify nothing is updated
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
-- fail only one update verify transaction is rolled back correctly
|
||||
BEGIN;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
UPDATE t2 SET b = 2 WHERE b = 1;
|
||||
-- verify update is performed on t2
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
-- following will fail
|
||||
UPDATE t3 SET b = 2 WHERE b = 1;
|
||||
END;
|
||||
|
||||
-- verify everything is rolled back
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t2;
|
||||
SELECT count(*) FILTER (WHERE b = 1) b1, count(*) FILTER (WHERE b = 2) AS b2 FROM t3;
|
||||
|
||||
SELECT citus.mitmproxy('conn.allow()');
|
||||
RESET SEARCH_PATH;
|
||||
DROP SCHEMA multi_shard CASCADE;
|
||||
Loading…
Reference in New Issue