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Revert test added by commit d207038053.

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This test was trying to test the mechanism to release kernel FDs as needed
to get us under the max_safe_fds limit in case of spill files.  To do that,
it needs to set max_files_per_process to a very low value which doesn't
even permit starting of the server in the case when there are a few already
opened files.  This test also won't work on platforms where we use one FD
per semaphore.

Backpatch-through: 10, till where this test was added
Discussion:
https://postgr.es/m/CAA4eK1LHhERi06Q+MmP9qBXBBboi+7WV3910J0aUgz71LcnKAw@mail.gmail.com
https://postgr.es/m/6485.1578583522@sss.pgh.pa.us
This commit is contained in:
Amit Kapila
2020-01-11 10:44:39 +05:30
parent 8c8b456b51
commit f9e95252a3
1 changed files with 1 additions and 38 deletions
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39
src/test/recovery/t/006_logical_decoding.pl
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@@ -7,7 +7,7 @@ use strict;
use warnings; use warnings;
use PostgresNode; use PostgresNode;
use TestLib; use TestLib;
use Test::More tests => 11; use Test::More tests => 10;
use Config; use Config;
# Initialize master node # Initialize master node
@@ -133,42 +133,5 @@ is($node_master->psql('postgres', 'DROP DATABASE otherdb'),
is($node_master->slot('otherdb_slot')->{'slot_name'}, is($node_master->slot('otherdb_slot')->{'slot_name'},
undef, 'logical slot was actually dropped with DB'); undef, 'logical slot was actually dropped with DB');
# Test to ensure that we don't run out of file descriptors even if there
# are more spill files than maxAllocatedDescs.
# Set max_files_per_process to a small value to make it more likely to run out
# of max open file descriptors.
$node_master->safe_psql('postgres',
'ALTER SYSTEM SET max_files_per_process = 26;');
$node_master->restart;
$node_master->safe_psql(
'postgres', q{
do $$
BEGIN
FOR i IN 1..10 LOOP
BEGIN
INSERT INTO decoding_test(x) SELECT generate_series(1,5000);
EXCEPTION
when division_by_zero then perform 'dummy';
END;
END LOOP;
END $$;
});
$result = $node_master->safe_psql('postgres',
qq[
SELECT data from pg_logical_slot_get_changes('test_slot', NULL, NULL)
WHERE data LIKE '%INSERT%' ORDER BY lsn LIMIT 1;
]);
$expected = q{table public.decoding_test: INSERT: x[integer]:1 y[text]:null};
is($result, $expected, 'got expected output from spilling subxacts session');
# Reset back max_files_per_process
$node_master->safe_psql('postgres',
'ALTER SYSTEM SET max_files_per_process = DEFAULT;');
$node_master->restart;
# done with the node # done with the node
$node_master->stop; $node_master->stop;