mirror of https://github.com/citusdata/citus.git
95 lines
1.9 KiB
Python
95 lines
1.9 KiB
Python
setup
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{
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CREATE TABLE distributed_table (x int primary key, y int);
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SELECT create_distributed_table('distributed_table', 'x');
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INSERT INTO distributed_table VALUES (1,0);
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CREATE OR REPLACE FUNCTION get_adjacency_list_wait_graph(OUT transactionNumber int, OUT waitingTransactionNumbers cstring)
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RETURNS SETOF RECORD
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LANGUAGE C STRICT
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AS 'citus', $$get_adjacency_list_wait_graph$$;
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COMMENT ON FUNCTION get_adjacency_list_wait_graph(OUT transactionNumber int, OUT waitingTransactionNumbers cstring)
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IS 'returns flattened wait graph';
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}
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teardown
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{
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DROP TABLE distributed_table;
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}
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session "s1"
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step "s1-begin"
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{
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BEGIN;
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}
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step "s1-update"
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{
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UPDATE distributed_table SET y = 1 WHERE x = 1;
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}
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step "s1-abort"
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{
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ABORT;
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}
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session "s2"
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step "s2-begin"
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{
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BEGIN;
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}
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step "s2-update"
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{
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UPDATE distributed_table SET y = 2 WHERE x = 1;
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}
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step "s2-abort"
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{
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ABORT;
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}
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session "s3"
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step "s3-begin"
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{
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BEGIN;
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}
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step "s3-update"
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{
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UPDATE distributed_table SET y = 3 WHERE x = 1;
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}
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step "s3-abort"
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{
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ABORT;
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}
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session "detector"
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step "detector-dump-wait-edges"
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{
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SELECT
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waiting_transaction_num,
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blocking_transaction_num,
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blocking_transaction_waiting
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FROM
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dump_global_wait_edges()
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ORDER BY
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waiting_transaction_num,
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blocking_transaction_num,
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blocking_transaction_waiting;
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SELECT * FROM get_adjacency_list_wait_graph() ORDER BY 1;
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}
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# Distributed transaction blocked by another distributed transaction
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permutation "s1-begin" "s2-begin" "s1-update" "s2-update" "detector-dump-wait-edges" "s1-abort" "s2-abort"
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# Distributed transaction blocked by another distributed transaction blocked by another distributed transaction
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permutation "s1-begin" "s2-begin" "s3-begin" "s1-update" "s2-update" "s3-update" "detector-dump-wait-edges" "s1-abort" "s2-abort" "s3-abort"
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