mirror of https://github.com/citusdata/citus.git
104 lines
3.4 KiB
PL/PgSQL
104 lines
3.4 KiB
PL/PgSQL
SELECT citus.mitmproxy('conn.allow()');
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SELECT citus.clear_network_traffic();
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SET citus.shard_count = 2;
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SET citus.shard_replication_factor = 2;
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CREATE TABLE select_test (key int, value text);
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SELECT create_distributed_table('select_test', 'key');
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-- put data in shard for which mitm node is first placement
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INSERT INTO select_test VALUES (2, 'test data');
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").kill()');
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SELECT * FROM select_test WHERE key = 2;
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SELECT * FROM select_test WHERE key = 2;
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-- kill after first SELECT; txn should work (though placement marked bad)
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").kill()');
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BEGIN;
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INSERT INTO select_test VALUES (2, 'more data');
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SELECT * FROM select_test WHERE key = 2;
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INSERT INTO select_test VALUES (2, 'even more data');
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SELECT * FROM select_test WHERE key = 2;
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COMMIT;
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-- some clean up
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UPDATE pg_dist_shard_placement SET shardstate = 1
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WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'select_test'::regclass
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);
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TRUNCATE select_test;
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-- now the same tests with query cancellation
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-- put data in shard for which mitm node is first placement
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INSERT INTO select_test VALUES (2, 'test data');
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").cancel(' || pg_backend_pid() || ')');
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SELECT * FROM select_test WHERE key = 2;
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SELECT * FROM select_test WHERE key = 2;
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-- cancel after first SELECT; txn should fail and nothing should be marked as invalid
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").cancel(' || pg_backend_pid() || ')');
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BEGIN;
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INSERT INTO select_test VALUES (2, 'more data');
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SELECT * FROM select_test WHERE key = 2;
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COMMIT;
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-- show that all placements are OK
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SELECT DISTINCT shardstate FROM pg_dist_shard_placement
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WHERE shardid IN (
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SELECT shardid FROM pg_dist_shard WHERE logicalrelid = 'select_test'::regclass
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);
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TRUNCATE select_test;
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-- cancel the second query
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-- error after second SELECT; txn should fail
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").after(1).cancel(' || pg_backend_pid() || ')');
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BEGIN;
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INSERT INTO select_test VALUES (2, 'more data');
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SELECT * FROM select_test WHERE key = 2;
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INSERT INTO select_test VALUES (2, 'even more data');
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SELECT * FROM select_test WHERE key = 2;
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COMMIT;
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-- error after second SELECT; txn should work (though placement marked bad)
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").after(1).reset()');
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BEGIN;
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INSERT INTO select_test VALUES (2, 'more data');
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SELECT * FROM select_test WHERE key = 2;
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INSERT INTO select_test VALUES (2, 'even more data');
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SELECT * FROM select_test WHERE key = 2;
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COMMIT;
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").after(2).kill()');
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SELECT recover_prepared_transactions();
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SELECT recover_prepared_transactions();
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-- bug from https://github.com/citusdata/citus/issues/1926
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DROP TABLE select_test;
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SET citus.shard_count = 2;
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SET citus.shard_replication_factor = 1;
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CREATE TABLE select_test (key int, value text);
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SELECT create_distributed_table('select_test', 'key');
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INSERT INTO select_test VALUES (1, 'test data');
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").after(1).kill()');
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SELECT * FROM select_test WHERE key = 1;
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SELECT * FROM select_test WHERE key = 1;
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-- now the same test with query cancellation
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SELECT citus.mitmproxy('conn.onQuery(query="^SELECT").after(1).cancel(' || pg_backend_pid() || ')');
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SELECT * FROM select_test WHERE key = 1;
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SELECT * FROM select_test WHERE key = 1;
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-- ==== Clean up, we're done here ====
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DROP TABLE select_test;
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