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Run pgindent, pgperltidy, and reformat-dat-files. This set of diffs is a bit larger than typical. We've updated to pg_bsd_indent 2.1.2, which properly indents variable declarations that have multi-line initialization expressions (the continuation lines are now indented one tab stop). We've also updated to perltidy version 20230309 and changed some of its settings, which reduces its desire to add whitespace to lines to make assignments etc. line up. Going forward, that should make for fewer random-seeming changes to existing code. Discussion: https://postgr.es/m/20230428092545.qfb3y5wcu4cm75ur@alvherre.pgsql
171 lines
3.7 KiB
Perl
171 lines
3.7 KiB
Perl
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# Copyright (c) 2021-2023, PostgreSQL Global Development Group
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# Test CREATE INDEX CONCURRENTLY with concurrent prepared-xact modifications
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use strict;
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use warnings;
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use PostgreSQL::Test::Cluster;
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use PostgreSQL::Test::Utils;
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use Test::More;
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Test::More->builder->todo_start('filesystem bug')
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if PostgreSQL::Test::Utils::has_wal_read_bug;
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my ($node, $result);
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#
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# Test set-up
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#
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$node = PostgreSQL::Test::Cluster->new('CIC_2PC_test');
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$node->init;
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$node->append_conf('postgresql.conf', 'max_prepared_transactions = 10');
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$node->append_conf('postgresql.conf',
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'lock_timeout = ' . (1000 * $PostgreSQL::Test::Utils::timeout_default));
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$node->start;
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$node->safe_psql('postgres', q(CREATE EXTENSION amcheck));
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$node->safe_psql('postgres', q(CREATE TABLE tbl(i int)));
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#
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# Run 3 overlapping 2PC transactions with CIC
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#
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# We have two concurrent background psql processes: $main_h for INSERTs and
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# $cic_h for CIC. Also, we use non-background psql for some COMMIT PREPARED
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# statements.
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#
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my $main_h = $node->background_psql('postgres');
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$main_h->query_safe(
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q(
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BEGIN;
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INSERT INTO tbl VALUES(0);
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));
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my $cic_h = $node->background_psql('postgres');
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$cic_h->query_until(
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qr/start/, q(
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\echo start
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CREATE INDEX CONCURRENTLY idx ON tbl(i);
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));
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$main_h->query_safe(
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q(
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PREPARE TRANSACTION 'a';
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));
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$main_h->query_safe(
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q(
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BEGIN;
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INSERT INTO tbl VALUES(0);
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));
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$node->safe_psql('postgres', q(COMMIT PREPARED 'a';));
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$main_h->query_safe(
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q(
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PREPARE TRANSACTION 'b';
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BEGIN;
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INSERT INTO tbl VALUES(0);
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));
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$node->safe_psql('postgres', q(COMMIT PREPARED 'b';));
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$main_h->query_safe(
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q(
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PREPARE TRANSACTION 'c';
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COMMIT PREPARED 'c';
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));
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$main_h->quit;
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$cic_h->quit;
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$result = $node->psql('postgres', q(SELECT bt_index_check('idx',true)));
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is($result, '0', 'bt_index_check after overlapping 2PC');
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#
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# Server restart shall not change whether prepared xact blocks CIC
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#
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$node->safe_psql(
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'postgres', q(
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BEGIN;
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INSERT INTO tbl VALUES(0);
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PREPARE TRANSACTION 'spans_restart';
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BEGIN;
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CREATE TABLE unused ();
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PREPARE TRANSACTION 'persists_forever';
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));
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$node->restart;
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my $reindex_h = $node->background_psql('postgres');
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$reindex_h->query_until(
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qr/start/, q(
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\echo start
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DROP INDEX CONCURRENTLY idx;
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CREATE INDEX CONCURRENTLY idx ON tbl(i);
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));
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$node->safe_psql('postgres', "COMMIT PREPARED 'spans_restart'");
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$reindex_h->quit;
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$result = $node->psql('postgres', q(SELECT bt_index_check('idx',true)));
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is($result, '0', 'bt_index_check after 2PC and restart');
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#
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# Stress CIC+2PC with pgbench
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#
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# pgbench might try to launch more than one instance of the CIC
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# transaction concurrently. That would deadlock, so use an advisory
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# lock to ensure only one CIC runs at a time.
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# Fix broken index first
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$node->safe_psql('postgres', q(REINDEX TABLE tbl;));
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# Run pgbench.
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$node->pgbench(
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'--no-vacuum --client=5 --transactions=100',
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0,
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[qr{actually processed}],
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[qr{^$}],
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'concurrent INSERTs w/ 2PC and CIC',
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{
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'003_pgbench_concurrent_2pc' => q(
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BEGIN;
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INSERT INTO tbl VALUES(0);
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PREPARE TRANSACTION 'c:client_id';
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COMMIT PREPARED 'c:client_id';
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),
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'003_pgbench_concurrent_2pc_savepoint' => q(
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BEGIN;
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SAVEPOINT s1;
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INSERT INTO tbl VALUES(0);
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PREPARE TRANSACTION 'c:client_id';
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COMMIT PREPARED 'c:client_id';
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),
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'003_pgbench_concurrent_cic' => q(
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SELECT pg_try_advisory_lock(42)::integer AS gotlock \gset
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\if :gotlock
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DROP INDEX CONCURRENTLY idx;
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CREATE INDEX CONCURRENTLY idx ON tbl(i);
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SELECT bt_index_check('idx',true);
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SELECT pg_advisory_unlock(42);
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\endif
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),
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'004_pgbench_concurrent_ric' => q(
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SELECT pg_try_advisory_lock(42)::integer AS gotlock \gset
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\if :gotlock
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REINDEX INDEX CONCURRENTLY idx;
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SELECT bt_index_check('idx',true);
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SELECT pg_advisory_unlock(42);
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\endif
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)
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});
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$node->stop;
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done_testing();
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