mirror of https://github.com/citusdata/citus.git
76 lines
2.9 KiB
PL/PgSQL
76 lines
2.9 KiB
PL/PgSQL
--
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-- Test failures related to distributed_intermediate_results.c
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--
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CREATE SCHEMA failure_distributed_results;
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SET search_path TO 'failure_distributed_results';
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-- do not cache any connections
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SET citus.max_cached_conns_per_worker TO 0;
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-- we don't want to see the prepared transaction numbers in the warnings
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SET client_min_messages TO WARNING;
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SELECT citus.mitmproxy('conn.allow()');
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SET citus.next_shard_id TO 100800;
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-- always try the 1st replica before the 2nd replica.
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SET citus.task_assignment_policy TO 'first-replica';
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--
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-- Case 1.
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-- Source is replicated, target is not.
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-- Fail the partition query on the first node.
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--
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CREATE TABLE source_table(a int);
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SET citus.shard_replication_factor TO 2;
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SET citus.shard_count TO 5;
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SELECT create_distributed_table('source_table', 'a');
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INSERT INTO source_table SELECT * FROM generate_series(1, 100);
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CREATE TABLE target_table(a int);
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SET citus.shard_count TO 4;
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SET citus.shard_replication_factor TO 1;
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SELECT create_distributed_table('target_table', 'a');
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-- without failure results from 100802 should be stored on 9060
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BEGIN;
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CREATE TABLE distributed_result_info AS
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SELECT resultId, nodeport, rowcount, targetShardId, targetShardIndex
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FROM partition_task_list_results('test', $$ SELECT * FROM source_table $$, 'target_table')
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NATURAL JOIN pg_dist_node;
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SELECT * FROM distributed_result_info ORDER BY resultId;
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SELECT fetch_intermediate_results('{test_from_100802_to_1,test_from_100802_to_2}'::text[], 'localhost', :worker_2_port) > 0 AS fetched;
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SELECT count(*), sum(x) FROM
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read_intermediate_results('{test_from_100802_to_1,test_from_100802_to_2}'::text[],'binary') AS res (x int);
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ROLLBACk;
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-- with failure, results from 100802 should be retried and succeed on 57637
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SELECT citus.mitmproxy('conn.onQuery(query="worker_partition_query_result.*test_from_100802").kill()');
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BEGIN;
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SET LOCAL client_min_messages TO DEBUG1;
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CREATE TABLE distributed_result_info AS
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SELECT resultId, nodeport, rowcount, targetShardId, targetShardIndex
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FROM partition_task_list_results('test', $$ SELECT * FROM source_table $$, 'target_table')
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NATURAL JOIN pg_dist_node;
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SELECT * FROM distributed_result_info ORDER BY resultId;
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-- fetch from worker 2 should fail
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SAVEPOINT s1;
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SELECT fetch_intermediate_results('{test_from_100802_to_1,test_from_100802_to_2}'::text[], 'localhost', :worker_2_port) > 0 AS fetched;
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ROLLBACK TO SAVEPOINT s1;
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-- fetch from worker 1 should succeed
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SELECT fetch_intermediate_results('{test_from_100802_to_1,test_from_100802_to_2}'::text[], 'localhost', :worker_1_port) > 0 AS fetched;
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-- make sure the results read are same as the previous transaction block
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SELECT count(*), sum(x) FROM
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read_intermediate_results('{test_from_100802_to_1,test_from_100802_to_2}'::text[],'binary') AS res (x int);
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ROLLBACk;
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SET search_path TO 'public';
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RESET citus.shard_replication_factor;
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RESET citus.shard_count;
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RESET citus.task_assignment_policy;
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DROP SCHEMA failure_distributed_results CASCADE;
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RESET client_min_messages;
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