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Merge pull request #1798 from citusdata/isolation_tests_improve 

Increases the coverage of the isolation tests by adding some of the concurrency tests
pull/1810/head
Mehmet Furkan ŞAHİN 2017-11-20 12:44:08 +03:00 committed by GitHub
parent 666e37273a 8d55754b4d
commit 59242383be
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 574 additions and 21 deletions
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102
src/test/regress/expected/isolation_create_distributed_table.out Normal file
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@ -0,0 +1,102 @@
Parsed test spec with 2 sessions
starting permutation: s1-begin s2-begin s1-create_distributed_table s2-create_distributed_table s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
create_distributed_table
step s2-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
<waiting ...>
step s1-commit:
COMMIT;
step s2-create_distributed_table: <... completed>
error in steps s1-commit s2-create_distributed_table: ERROR: table "table_to_distribute" is already distributed
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s1-create_distributed_table s2-copy_to_local_table s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
create_distributed_table
step s2-copy_to_local_table:
COPY table_to_distribute FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8"';
<waiting ...>
step s1-commit:
COMMIT;
step s2-copy_to_local_table: <... completed>
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s2-copy_to_local_table s1-create_distributed_table s2-commit s1-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s2-copy_to_local_table:
COPY table_to_distribute FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8"';
step s1-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
<waiting ...>
step s2-commit:
COMMIT;
step s1-create_distributed_table: <... completed>
create_distributed_table
step s1-commit:
COMMIT;
starting permutation: s1-copy_to_local_table s1-begin s2-begin s1-create_distributed_table s2-create_distributed_table s1-commit s2-commit
step s1-copy_to_local_table:
COPY table_to_distribute FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8"';
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
create_distributed_table
step s2-create_distributed_table:
SELECT create_distributed_table('table_to_distribute', 'id');
<waiting ...>
step s1-commit:
COMMIT;
step s2-create_distributed_table: <... completed>
error in steps s1-commit s2-create_distributed_table: ERROR: table "table_to_distribute" is already distributed
step s2-commit:
COMMIT;

39
src/test/regress/expected/isolation_master_append_table.out Normal file
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@ -0,0 +1,39 @@
Parsed test spec with 2 sessions
starting permutation: s1-begin s2-begin s1-master_append_table_to_shard s2-master_append_table_to_shard s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-master_append_table_to_shard:
SELECT
master_append_table_to_shard(shardid, 'table_to_be_appended', 'localhost', 57636)
FROM
pg_dist_shard
WHERE
'table_to_append'::regclass::oid = logicalrelid;
master_append_table_to_shard
0.213333
step s2-master_append_table_to_shard:
SELECT
master_append_table_to_shard(shardid, 'table_to_be_appended', 'localhost', 57636)
FROM
pg_dist_shard
WHERE
'table_to_append'::regclass::oid = logicalrelid;
<waiting ...>
step s1-commit:
COMMIT;
step s2-master_append_table_to_shard: <... completed>
master_append_table_to_shard
0.32
step s2-commit:
COMMIT;

109
src/test/regress/expected/isolation_master_apply_delete.out Normal file
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@ -0,0 +1,109 @@
Parsed test spec with 2 sessions
starting permutation: s1-begin s2-begin s1-master_apply_delete_command_all_shard s2-master_apply_delete_command_all_shard s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-master_apply_delete_command_all_shard:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
master_apply_delete_command
1
step s2-master_apply_delete_command_all_shard:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
<waiting ...>
step s1-commit:
COMMIT;
step s2-master_apply_delete_command_all_shard: <... completed>
master_apply_delete_command
0
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s1-master_apply_delete_command_all_shard s2-master_apply_delete_command_row s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-master_apply_delete_command_all_shard:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
master_apply_delete_command
1
step s2-master_apply_delete_command_row:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
<waiting ...>
step s1-commit:
COMMIT;
step s2-master_apply_delete_command_row: <... completed>
master_apply_delete_command
0
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s1-master_apply_delete_command_row s2-master_apply_delete_command_all_shard s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-master_apply_delete_command_row:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
master_apply_delete_command
0
step s2-master_apply_delete_command_all_shard:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
<waiting ...>
step s1-commit:
COMMIT;
step s2-master_apply_delete_command_all_shard: <... completed>
master_apply_delete_command
1
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s1-master_apply_delete_command_row s2-master_apply_delete_command_row s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-master_apply_delete_command_row:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
master_apply_delete_command
0
step s2-master_apply_delete_command_row:
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
<waiting ...>
step s1-commit:
COMMIT;
step s2-master_apply_delete_command_row: <... completed>
master_apply_delete_command
0
step s2-commit:
COMMIT;

122
src/test/regress/expected/isolation_multi_shard_modify_vs_all.out
View File

@ -62,17 +62,17 @@ step s2-commit:
COMMIT;
starting permutation: s1-begin s1-update_value_1_of_1_or_3 s2-begin s2-update_value_1_of_4_or_6 s1-commit s2-commit s2-select
starting permutation: s1-begin s1-update_value_1_of_1_or_3_to_5 s2-begin s2-update_value_1_of_4_or_6_to_4 s1-commit s2-commit s2-select
step s1-begin:
BEGIN;
step s1-update_value_1_of_1_or_3:
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-begin:
BEGIN;
step s2-update_value_1_of_4_or_6:
step s2-update_value_1_of_4_or_6_to_4:
UPDATE users_test_table SET value_1 = 4 WHERE user_id = 4 or user_id = 6;
step s1-commit:
@ -94,23 +94,23 @@ user_id value_1 value_2 value_3
6 4 11 25
7 27 12 18
starting permutation: s1-begin s1-update_value_1_of_1_or_3 s2-begin s2-update_value_1_of_1_or_3 s1-commit s2-commit s2-select
starting permutation: s1-begin s1-update_value_1_of_1_or_3_to_5 s2-begin s2-update_value_1_of_1_or_3_to_8 s1-commit s2-commit s2-select
step s1-begin:
BEGIN;
step s1-update_value_1_of_1_or_3:
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-begin:
BEGIN;
step s2-update_value_1_of_1_or_3:
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
<waiting ...>
step s1-commit:
COMMIT;
step s2-update_value_1_of_1_or_3: <... completed>
step s2-update_value_1_of_1_or_3_to_8: <... completed>
step s2-commit:
COMMIT;
@ -200,6 +200,47 @@ user_id value_1 value_2 value_3
5 17 14 4
3 11 78 18
starting permutation: s1-begin s2-begin s1-update_value_1_of_1_or_3_to_5 s2-update_value_1_of_1_or_3_to_8 s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
<waiting ...>
step s1-commit:
COMMIT;
step s2-update_value_1_of_1_or_3_to_8: <... completed>
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s2-update_value_1_of_1_or_3_to_8 s1-update_value_1_of_2_or_4_to_5 s2-commit s1-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
step s1-update_value_1_of_2_or_4_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 2 or user_id = 4;
step s2-commit:
COMMIT;
step s1-commit:
COMMIT;
starting permutation: s1-begin s1-change_connection_mode_to_sequential s1-update_all_value_1 s2-begin s2-change_connection_mode_to_sequential s2-update_all_value_1 s1-commit s2-commit s2-select
step s1-begin:
BEGIN;
@ -239,14 +280,14 @@ user_id value_1 value_2 value_3
6 6 11 25
7 6 12 18
starting permutation: s1-begin s1-change_connection_mode_to_sequential s1-update_value_1_of_1_or_3 s2-begin s2-change_connection_mode_to_sequential s2-update_value_1_of_1_or_3 s1-commit s2-commit s2-select
starting permutation: s1-begin s1-change_connection_mode_to_sequential s1-update_value_1_of_1_or_3_to_5 s2-begin s2-change_connection_mode_to_sequential s2-update_value_1_of_1_or_3_to_8 s1-commit s2-commit s2-select
step s1-begin:
BEGIN;
step s1-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s1-update_value_1_of_1_or_3:
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-begin:
@ -255,13 +296,13 @@ step s2-begin:
step s2-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s2-update_value_1_of_1_or_3:
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
<waiting ...>
step s1-commit:
COMMIT;
step s2-update_value_1_of_1_or_3: <... completed>
step s2-update_value_1_of_1_or_3_to_8: <... completed>
step s2-commit:
COMMIT;
@ -278,14 +319,14 @@ user_id value_1 value_2 value_3
6 21 11 25
7 27 12 18
starting permutation: s1-begin s1-change_connection_mode_to_sequential s1-update_value_1_of_1_or_3 s2-begin s2-change_connection_mode_to_sequential s2-update_value_1_of_4_or_6 s1-commit s2-commit s2-select
starting permutation: s1-begin s1-change_connection_mode_to_sequential s1-update_value_1_of_1_or_3_to_5 s2-begin s2-change_connection_mode_to_sequential s2-update_value_1_of_4_or_6_to_4 s1-commit s2-commit s2-select
step s1-begin:
BEGIN;
step s1-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s1-update_value_1_of_1_or_3:
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-begin:
@ -294,7 +335,7 @@ step s2-begin:
step s2-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s2-update_value_1_of_4_or_6:
step s2-update_value_1_of_4_or_6_to_4:
UPDATE users_test_table SET value_1 = 4 WHERE user_id = 4 or user_id = 6;
step s1-commit:
@ -315,3 +356,56 @@ user_id value_1 value_2 value_3
5 35 10 17
6 4 11 25
7 27 12 18
starting permutation: s1-begin s2-begin s1-change_connection_mode_to_sequential s2-change_connection_mode_to_sequential s1-update_value_1_of_1_or_3_to_5 s2-update_value_1_of_1_or_3_to_8 s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s2-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s1-update_value_1_of_1_or_3_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
<waiting ...>
step s1-commit:
COMMIT;
step s2-update_value_1_of_1_or_3_to_8: <... completed>
step s2-commit:
COMMIT;
starting permutation: s1-begin s2-begin s1-change_connection_mode_to_sequential s2-change_connection_mode_to_sequential s2-update_value_1_of_1_or_3_to_8 s1-update_value_1_of_2_or_4_to_5 s1-commit s2-commit
step s1-begin:
BEGIN;
step s2-begin:
BEGIN;
step s1-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s2-change_connection_mode_to_sequential:
set citus.multi_shard_modify_mode to 'sequential';
step s2-update_value_1_of_1_or_3_to_8:
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
step s1-update_value_1_of_2_or_4_to_5:
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 2 or user_id = 4;
step s1-commit:
COMMIT;
step s2-commit:
COMMIT;

1
src/test/regress/isolation_schedule
View File

@ -23,6 +23,7 @@ test: isolation_distributed_deadlock_detection
# writes, run this test serially.
test: isolation_create_restore_point
test: isolation_create_distributed_table isolation_master_append_table isolation_master_apply_delete
test: isolation_multi_shard_modify_vs_all
test: isolation_hash_copy_vs_all
test: isolation_append_copy_vs_all

63
src/test/regress/specs/isolation_create_distributed_table.spec Normal file
View File

@ -0,0 +1,63 @@
setup
{
CREATE TABLE table_to_distribute(id int);
}
teardown
{
DROP TABLE table_to_distribute CASCADE;
}
session "s1"
step "s1-begin"
{
BEGIN;
}
step "s1-create_distributed_table"
{
SELECT create_distributed_table('table_to_distribute', 'id');
}
step "s1-copy_to_local_table"
{
COPY table_to_distribute FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8"';
}
step "s1-commit"
{
COMMIT;
}
session "s2"
step "s2-begin"
{
BEGIN;
}
step "s2-create_distributed_table"
{
SELECT create_distributed_table('table_to_distribute', 'id');
}
step "s2-copy_to_local_table"
{
COPY table_to_distribute FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8"';
}
step "s2-commit"
{
COMMIT;
}
#concurrent create_distributed_table on empty table
permutation "s1-begin" "s2-begin" "s1-create_distributed_table" "s2-create_distributed_table" "s1-commit" "s2-commit"
#concurrent create_distributed_table vs. copy to table
permutation "s1-begin" "s2-begin" "s1-create_distributed_table" "s2-copy_to_local_table" "s1-commit" "s2-commit"
permutation "s1-begin" "s2-begin" "s2-copy_to_local_table" "s1-create_distributed_table" "s2-commit" "s1-commit"
#concurrent create_distributed_table on non-empty table
permutation "s1-copy_to_local_table" "s1-begin" "s2-begin" "s1-create_distributed_table" "s2-create_distributed_table" "s1-commit" "s2-commit"

64
src/test/regress/specs/isolation_master_append_table.spec Normal file
View File

@ -0,0 +1,64 @@
setup
{
CREATE TABLE table_to_append(id int);
CREATE TABLE table_to_be_appended(id int);
SELECT create_distributed_table('table_to_append', 'id', 'append');
INSERT INTO table_to_be_appended SELECT generate_series(1,1000);
COPY table_to_append FROM PROGRAM 'echo "0\n7\n8\n9\n10000"';
}
teardown
{
DROP TABLE table_to_append CASCADE;
DROP TABLE table_to_be_appended CASCADE;
}
session "s1"
step "s1-begin"
{
BEGIN;
}
step "s1-master_append_table_to_shard"
{
SELECT
master_append_table_to_shard(shardid, 'table_to_be_appended', 'localhost', 57636)
FROM
pg_dist_shard
WHERE
'table_to_append'::regclass::oid = logicalrelid;
}
step "s1-commit"
{
COMMIT;
}
session "s2"
step "s2-begin"
{
BEGIN;
}
step "s2-master_append_table_to_shard"
{
SELECT
master_append_table_to_shard(shardid, 'table_to_be_appended', 'localhost', 57636)
FROM
pg_dist_shard
WHERE
'table_to_append'::regclass::oid = logicalrelid;
}
step "s2-commit"
{
COMMIT;
}
# concurrent master_append_table_to_shard tests
permutation "s1-begin" "s2-begin" "s1-master_append_table_to_shard" "s2-master_append_table_to_shard" "s1-commit" "s2-commit"

63
src/test/regress/specs/isolation_master_apply_delete.spec Normal file
View File

@ -0,0 +1,63 @@
setup
{
CREATE TABLE table_to_delete_from(id int);
SELECT create_distributed_table('table_to_delete_from', 'id', 'append');
COPY table_to_delete_from FROM PROGRAM 'echo "0\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10"';
}
teardown
{
DROP TABLE table_to_delete_from CASCADE;
}
session "s1"
step "s1-begin"
{
BEGIN;
}
step "s1-master_apply_delete_command_all_shard"
{
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
}
step "s1-master_apply_delete_command_row"
{
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
}
step "s1-commit"
{
COMMIT;
}
session "s2"
step "s2-begin"
{
BEGIN;
}
step "s2-master_apply_delete_command_all_shard"
{
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0$$);
}
step "s2-master_apply_delete_command_row"
{
SELECT master_apply_delete_command($$DELETE FROM table_to_delete_from WHERE id >= 0 and id < 3$$);
}
step "s2-commit"
{
COMMIT;
}
#concurrent master_apply_delete_command vs master_apply_delete_command
permutation "s1-begin" "s2-begin" "s1-master_apply_delete_command_all_shard" "s2-master_apply_delete_command_all_shard" "s1-commit" "s2-commit"
permutation "s1-begin" "s2-begin" "s1-master_apply_delete_command_all_shard" "s2-master_apply_delete_command_row" "s1-commit" "s2-commit"
permutation "s1-begin" "s2-begin" "s1-master_apply_delete_command_row" "s2-master_apply_delete_command_all_shard" "s1-commit" "s2-commit"
permutation "s1-begin" "s2-begin" "s1-master_apply_delete_command_row" "s2-master_apply_delete_command_row" "s1-commit" "s2-commit"

32
src/test/regress/specs/isolation_multi_shard_modify_vs_all.spec
View File

@ -55,11 +55,21 @@ step "s1-update_all_value_1"
UPDATE users_test_table SET value_1 = 3;
}
step "s1-update_value_1_of_1_or_3"
step "s1-update_value_1_of_1_or_3_to_5"
{
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 1 or user_id = 3;
}
step "s1-update_value_1_of_1_or_3_to_7"
{
UPDATE users_test_table SET value_1 = 7 WHERE user_id = 1 or user_id = 3;
}
step "s1-update_value_1_of_2_or_4_to_5"
{
UPDATE users_test_table SET value_1 = 5 WHERE user_id = 2 or user_id = 4;
}
step "s1-commit"
{
COMMIT;
@ -97,12 +107,12 @@ step "s2-update_all_value_1"
UPDATE users_test_table SET value_1 = 6;
}
step "s2-update_value_1_of_1_or_3"
step "s2-update_value_1_of_1_or_3_to_8"
{
UPDATE users_test_table SET value_1 = 8 WHERE user_id = 1 or user_id = 3;
}
step "s2-update_value_1_of_4_or_6"
step "s2-update_value_1_of_4_or_6_to_4"
{
UPDATE users_test_table SET value_1 = 4 WHERE user_id = 4 or user_id = 6;
}
@ -115,14 +125,22 @@ step "s2-commit"
# test with parallel connections
permutation "s1-begin" "s1-update_all_value_1" "s2-begin" "s2-select" "s1-commit" "s2-select" "s2-commit"
permutation "s1-begin" "s1-update_all_value_1" "s2-begin" "s2-update_all_value_1" "s1-commit" "s2-commit"
permutation "s1-begin" "s1-update_value_1_of_1_or_3" "s2-begin" "s2-update_value_1_of_4_or_6" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-update_value_1_of_1_or_3" "s2-begin" "s2-update_value_1_of_1_or_3" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-update_value_1_of_1_or_3_to_5" "s2-begin" "s2-update_value_1_of_4_or_6_to_4" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-update_value_1_of_1_or_3_to_5" "s2-begin" "s2-update_value_1_of_1_or_3_to_8" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-update_all_value_1" "s2-begin" "s2-insert-to-table" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-update_all_value_1" "s2-begin" "s2-insert-into-select" "s1-commit" "s2-commit" "s2-select"
# multi-shard update affecting the same rows
permutation "s1-begin" "s2-begin" "s1-update_value_1_of_1_or_3_to_5" "s2-update_value_1_of_1_or_3_to_8" "s1-commit" "s2-commit"
# multi-shard update affecting the different rows
permutation "s1-begin" "s2-begin" "s2-update_value_1_of_1_or_3_to_8" "s1-update_value_1_of_2_or_4_to_5" "s2-commit" "s1-commit"
# test with sequential connections, sequential tests should not block each other
# if they are targeting different shards. If multiple connections updating the same
# row, second one must wait for the first one.
permutation "s1-begin" "s1-change_connection_mode_to_sequential" "s1-update_all_value_1" "s2-begin" "s2-change_connection_mode_to_sequential" "s2-update_all_value_1" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-change_connection_mode_to_sequential" "s1-update_value_1_of_1_or_3" "s2-begin" "s2-change_connection_mode_to_sequential" "s2-update_value_1_of_1_or_3" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-change_connection_mode_to_sequential" "s1-update_value_1_of_1_or_3" "s2-begin" "s2-change_connection_mode_to_sequential" "s2-update_value_1_of_4_or_6" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-change_connection_mode_to_sequential" "s1-update_value_1_of_1_or_3_to_5" "s2-begin" "s2-change_connection_mode_to_sequential" "s2-update_value_1_of_1_or_3_to_8" "s1-commit" "s2-commit" "s2-select"
permutation "s1-begin" "s1-change_connection_mode_to_sequential" "s1-update_value_1_of_1_or_3_to_5" "s2-begin" "s2-change_connection_mode_to_sequential" "s2-update_value_1_of_4_or_6_to_4" "s1-commit" "s2-commit" "s2-select"
# multi-shard update affecting the same rows
permutation "s1-begin" "s2-begin" "s1-change_connection_mode_to_sequential" "s2-change_connection_mode_to_sequential" "s1-update_value_1_of_1_or_3_to_5" "s2-update_value_1_of_1_or_3_to_8" "s1-commit" "s2-commit"
# multi-shard update affecting the different rows
permutation "s1-begin" "s2-begin" "s1-change_connection_mode_to_sequential" "s2-change_connection_mode_to_sequential" "s2-update_value_1_of_1_or_3_to_8" "s1-update_value_1_of_2_or_4_to_5" "s1-commit" "s2-commit"