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Add tests for reinit.c

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This tests how the different forks of unlogged tables behave in crash
recovery.

Author: David Steele <david@pgmasters.net>
This commit is contained in:
Peter Eisentraut 2018-03-14 09:03:44 -04:00
parent 3b7ab43804
commit df411e7c66
1 changed files with 82 additions and 0 deletions
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src/test/recovery/t/014_unlogged_reinit.pl Normal file
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# Tests that unlogged tables are properly reinitialized after a crash.
#
# The behavior should be the same when restoring from a backup, but
# that is not tested here.
use strict;
use warnings;
use PostgresNode;
use TestLib;
use Test::More tests => 12;
my $node = get_new_node('main');
$node->init;
$node->start;
my $pgdata = $node->data_dir;
# Create an unlogged table to test that forks other than init are not
# copied.
$node->safe_psql('postgres', 'CREATE UNLOGGED TABLE base_unlogged (id int)');
my $baseUnloggedPath = $node->safe_psql('postgres',
q{select pg_relation_filepath('base_unlogged')});
# Test that main and init forks exist.
ok(-f "$pgdata/${baseUnloggedPath}_init", 'init fork in base exists');
ok(-f "$pgdata/$baseUnloggedPath", 'main fork in base exists');
# Create an unlogged table in a tablespace.
my $tablespaceDir = TestLib::tempdir;
$node->safe_psql('postgres',
"CREATE TABLESPACE ts1 LOCATION '$tablespaceDir'");
$node->safe_psql('postgres',
'CREATE UNLOGGED TABLE ts1_unlogged (id int) TABLESPACE ts1');
my $ts1UnloggedPath = $node->safe_psql('postgres',
q{select pg_relation_filepath('ts1_unlogged')});
# Test that main and init forks exist.
ok(-f "$pgdata/${ts1UnloggedPath}_init", 'init fork in tablespace exists');
ok(-f "$pgdata/$ts1UnloggedPath", 'main fork in tablespace exists');
# Crash the postmaster.
$node->stop('immediate');
# Write fake forks to test that they are removed during recovery.
append_to_file("$pgdata/${baseUnloggedPath}_vm", 'TEST_VM');
append_to_file("$pgdata/${baseUnloggedPath}_fsm", 'TEST_FSM');
# Remove main fork to test that it is recopied from init.
unlink("$pgdata/${baseUnloggedPath}")
or BAIL_OUT("could not remove \"${baseUnloggedPath}\": $!");
# the same for the tablespace
append_to_file("$pgdata/${ts1UnloggedPath}_vm", 'TEST_VM');
append_to_file("$pgdata/${ts1UnloggedPath}_fsm", 'TEST_FSM');
unlink("$pgdata/${ts1UnloggedPath}")
or BAIL_OUT("could not remove \"${ts1UnloggedPath}\": $!");
$node->start;
# check unlogged table in base
ok(-f "$pgdata/${baseUnloggedPath}_init",
'init fork in base still exists');
ok(-f "$pgdata/$baseUnloggedPath",
'main fork in base recreated at startup');
ok( !-f "$pgdata/${baseUnloggedPath}_vm",
'vm fork in base removed at startup');
ok( !-f "$pgdata/${baseUnloggedPath}_fsm",
'fsm fork in base removed at startup');
# check unlogged table in tablespace
ok( -f "$pgdata/${ts1UnloggedPath}_init",
'init fork still exists in tablespace');
ok(-f "$pgdata/$ts1UnloggedPath",
'main fork in tablespace recreated at startup');
ok( !-f "$pgdata/${ts1UnloggedPath}_vm",
'vm fork in tablespace removed at startup');
ok( !-f "$pgdata/${ts1UnloggedPath}_fsm",
'fsm fork in tablespace removed at startup');