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Author: "Drouvot, Bertrand" <[email protected]>
Author: Amit Khandekar <[email protected]>
Author: Craig Ringer <[email protected]> (in an older version)
Author: Andres Freund <[email protected]>
Reviewed-by: "Drouvot, Bertrand" <[email protected]>
Reviewed-by: Andres Freund <[email protected]>
Reviewed-by: Robert Haas <[email protected]>
Reviewed-by: Amit Kapila <[email protected]>
Reviewed-by: Fabrízio de Royes Mello <[email protected]>
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This breaks out the background and interactive psql functionality into a
new class, PostgreSQL::Test::BackgroundPsql. Sessions are still initiated
via PostgreSQL::Test::Cluster, but once started they can be manipulated by
the new helper functions which intend to make querying easier. A sample
session for a command which can be expected to finish at a later time can
be seen below.
my $session = $node->background_psql('postgres');
$bsession->query_until(qr/start/, q(
\echo start
CREATE INDEX CONCURRENTLY idx ON t(a);
));
$bsession->quit;
Patch by Andres Freund with some additional hacking by me.
Author: Andres Freund <[email protected]>
Reviewed-by: Andrew Dunstan <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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This adds support for load balancing connections with libpq using a
connection parameter: load_balance_hosts=<string>. When setting the
param to random, hosts and addresses will be connected to in random
order. This then results in load balancing across these addresses and
hosts when multiple clients or frequent connection setups are used.
The randomization employed performs two levels of shuffling:
1. The given hosts are randomly shuffled, before resolving them
one-by-one.
2. Once a host its addresses get resolved, the returned addresses
are shuffled, before trying to connect to them one-by-one.
Author: Jelte Fennema <[email protected]>
Reviewed-by: Aleksander Alekseev <[email protected]>
Reviewed-by: Michael Banck <[email protected]>
Reviewed-by: Andrey Borodin <[email protected]>
Discussion: https://postgr.es/m/PR3PR83MB04768E2FF04818EEB2179949F7A69@PR3PR83MB0476.EURPRD83.prod.outlook.
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This simplifies a few lines of Perl test code a bit.
Author: Bertrand Drouvot
Discussion: https://postgr.es/m/[email protected]
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Backpatch-through: 11
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per gripe from Andres Freund and Tom Lane
Backpatch to all live branches.
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Currently there is a race condition where if concurrent TAP tests both
test that they can open a port they will assume that it is free and use
it, causing one of them to fail. To prevent this we record a reservation
using an exclusive lock, and any TAP test that discovers a reservation
checks to see if the reserving process is still alive, and looks for
another free port if it is.
Ports are reserved in a directory set by the environment setting
PG_TEST_PORT_DIR, or if that doesn't exist a subdirectory of the top
build directory as set by meson or Makefile.global, or its own
tmp_check directory.
The prove_check recipe in Makefile.global.in is extended to export
top_builddir to the TAP tests. This was already exported by the
prove_installcheck recipes.
Per complaint from Andres Freund
This will be backpatched in due course after some testing.
Discussion: https://postgr.es/m/[email protected]
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The /release/ links are redirected to /dist/ and /pod/release/ to
/release/../view/, so update our links accordingly to avoid 301
redirects.
Discussion: https://postgr.es/m/[email protected]
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Currently this only allows for one argument, which must be present, and
always returns a single string. With this change the following now all
work:
$all_config = $node->config_data;
%config_map = ($node->config_data);
$incdir = $node->config_data('--include-dir');
($incdir, $sharedir) = $node->config_data(
qw(--include-dir --share-dir));
Backpatch to release 15 where this was introduced.
Discussion: https://postgr.es/m/[email protected]
Reviewed by Tom Lane, Alvaro Herrera, Michael Paquier.
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Test files should now ignore has_wal_read_bug() so long as
wait_for_catchup() is their only known way of reaching the bug. That's
at least five files today, a number expected to grow over time. This
commit removes skip logic from three. By doing so, systems having the
bug regain the ability to catch other kinds of defects via those three
tests. The other two, 002_databases.pl and 031_recovery_conflict.pl,
have been unprotected. Back-patch to v15, where done_testing() first
became our standard.
Discussion: https://postgr.es/m/[email protected]
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Set up a signal handler for INT/TERM so that we run our END block if we
get them. In END, if the exit status indicates a problem, call
_update_pid(-1) to improve chances of the stop working in case start()
hasn't returned yet.
Also, change END's teardown_node() so that it passes fail_ok=>1, so that
if a node fails to stop, we still stop the other nodes in the same test.
Per complaint from Andres Freund.
This doesn't seem important enough to backpatch, at least for now.
Discussion: https://postgr.es/m/[email protected]
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Our Perl version requirement was raised to 5.14 by commit 4c1532763a00
Discussion: https://postgr.es/m/[email protected]
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The oldest vendor-shipped Perl in the buildfarm is 5.14.2, which is
the last version that Debian Wheezy shipped. That OS is EOL, but we
keep it running because there is no other convenient way to test certain
non-mainstream 32-bit platforms. There is no bugfix in the 5.14.2 release
that is required, and yet it's also not the latest minor release --
that would be 5.14.4. To clarify the situation, we have thus arranged the
buildfarm to test 5.14.0. That allows configure scripts and documentation
to state 5.14 without fine print.
The MSVC build didn't check the version, since our previous minimum 5.8.3
was considered too old to check for on Windows. We will need a check for
Windows sometime during the v16 cycle, but that could be rendered moot
by the impending Meson conversion, so it seems safe to just document
the requirement for now.
Reviewed by Tom Lane
Discussion: https://www.postgresql.org/message-id/[email protected]
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The TAP tests for logical replication in src/test/subscription are using
the following code in many places to make sure that the subscription is
synchronized with the publisher:
$node_publisher->wait_for_catchup('tap_sub');
$node_subscriber->poll_query_until('postgres',
qq[SELECT count(1) = 0
FROM pg_subscription_rel
WHERE srsubstate NOT IN ('r', 's')]);
The new function wait_for_subscription_sync() can be used to replace the
above code. This eliminates duplicated code and makes it easier to write
future tests.
Author: Masahiko Sawada
Reviewed by: Amit Kapila, Shi yu
Discussion: https://postgr.es/m/CAD21AoC-fvAkaKHa4t1urupwL8xbAcWRePeETvshvy80f6WV1A@mail.gmail.com
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_pg_version (version number based on PostgreSQL::Version) is a field
private to Cluster.pm but there was no helper routine to retrieve it
from a Cluster's node. The same is done for install_path, for example,
and the version object becomes handy when writing tests that need
version-specific handling.
Reviewed-by: Andrew Dunstan, Daniel Gustafsson
Discussion: https://postgr.es/m/[email protected]
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Run pgindent, pgperltidy, and reformat-dat-files.
I manually fixed a couple of comments that pgindent uglified.
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With stats now being stored in shared memory, the GUC isn't needed
anymore. However, the pg_stat_tmp directory and PG_STAT_TMP_DIR define are
kept, as pg_stat_statements (and some out-of-core extensions) store data in
it.
Docs will be updated in a subsequent commit, together with the other pending
docs updates due to shared memory stats.
Author: Andres Freund <[email protected]>
Author: Kyotaro Horiguchi <[email protected]>
Reviewed-By: Kyotaro Horiguchi <[email protected]>
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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Exclusive-mode backups have been deprecated since 9.6 (when
non-exclusive backups were introduced) due to the issues
they can cause should the system crash while one is running and
generally because non-exclusive provides a much better interface.
Further, exclusive backup mode wasn't really being tested (nor was most
of the related code- like being able to log in just to stop an exclusive
backup and the bits of the state machine related to that) and having to
possibly deal with an exclusive backup and the backup_label file
existing during pg_basebackup, pg_rewind, etc, added other complexities
that we are better off without.
This patch removes the exclusive backup mode, the various special cases
for dealing with it, and greatly simplifies the online backup code and
documentation.
Authors: David Steele, Nathan Bossart
Reviewed-by: Chapman Flack
Discussion: https://postgr.es/m/[email protected]
https://postgr.es/m/CAHg+QDfiM+WU61tF6=nPZocMZvHDzCK47Kneyb0ZRULYzV5sKQ@mail.gmail.com
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Commit fb16d2c658 used the old but not quite old enough parent module,
which dates to perl version 5.10.1 as a core module. We still have a
dinosaur or two running older versions of perl, so rather than require
an upgrade in those we simply do in place what parent.pm's import()
would have done for us.
Reviewed by Tom Lane
Discussion: https://postgr.es/m/[email protected]
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Per Dagfinn Ilmari Mannsåker
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We do this via a subclass for any branch older than the minimum known
to be compatible with the main package (currently release 12).
This should be useful for constructing cross-version tests.
In theory this could be extended back any number of versions, with
varying degrees of compatibility.
Reviewed by Michael Paquier and Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/[email protected]
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Curently, some TAP test that directly call the underlying function
PostgreSQL::Test::Utils::run_log() care about the return value, but
none of those that call it via PostgreSQL::Test::Cluster::run_log() care.
However, I'd like to add a test that will care, so adjust this function
to return whatever it gets back from the underlying function, just as
we do for a number of other functions in this module.
Discussion: http://postgr.es/m/CA+Tgmobj6u-nWF-j=FemygUhobhryLxf9h-wJN7W-2rSsseHNA@mail.gmail.com
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The previous method for doing that was to write zeroes into a
predetermined set of page locations. However, there's a roughly
1-in-64K chance that the existing checksum will match by chance,
and yesterday several buildfarm animals started to reproducibly
see that, resulting in test failures because no checksum mismatch
was reported.
Since the checksum includes the page LSN, test success depends on
the length of the installation's WAL history, which is affected by
(at least) the initial catalog contents, the set of locales installed
on the system, and the length of the pathname of the test directory.
Sooner or later we were going to hit a chance match, and today is
that day.
Harden these tests by specifically inverting the checksum field and
leaving all else alone, thereby guaranteeing that the checksum is
incorrect.
In passing, fix places that were using seek() to set up for syswrite(),
a combination that the Perl docs very explicitly warn against. We've
probably escaped problems because no regular buffered I/O is done on
these filehandles; but if it ever breaks, we wouldn't deserve or get
much sympathy.
Although we've only seen problems in HEAD, now that we recognize the
environmental dependencies it seems like it might be just a matter
of time until someone manages to hit this in back-branch testing.
Hence, back-patch to v11 where we started doing this kind of test.
Discussion: https://postgr.es/m/[email protected]
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The Config and Cwd modules were no longer used, but remained imported,
in a number of tests. Remove to keep the imports to the actually used
modules.
Reviewed-by: Andrew Dunstan <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Some words were duplicated while other places were grammatically
incorrect, including one variable name in the code.
Author: Otto Kekalainen, Justin Pryzby
Discussion: https://postgr.es/m/[email protected]
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Slow hosts may avoid load-induced, spurious failures by setting
environment variable PG_TEST_TIMEOUT_DEFAULT to some number of seconds
greater than 180. Developers may see faster failures by setting that
environment variable to some lesser number of seconds. In tests, write
$PostgreSQL::Test::Utils::timeout_default wherever the convention has
been to write 180. This change raises the default for some briefer
timeouts. Back-patch to v10 (all supported versions).
Discussion: https://postgr.es/m/[email protected]
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Following migration of Windows buildfarm members running TAP tests to
use of ucrt64 perl for those tests, special processing for msys perl is
no longer necessary and so is removed.
Backpatch to release 10
Discussion: https://postgr.es/m/[email protected]
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Commit f1ac4a74de disabled this processing, and as nothing has broken (as
expected) here we proceed to remove the routine and adjust all the call
sites.
Backpatch to release 10
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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Connections performed via connect_ok() in TAP tests should not write
anything to STDERR.
Author: Jacob Champion <[email protected]>
Reviewed-by: Tom Lane <[email protected]>
Reviewed-by: Michael Paquier <[email protected]>
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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This is useful to grab some configuration information from a node
already set up, and I personally found two cases for it: pg_upgrade and
a test to emulate check_guc.
Author: Michael Paquier
Discussion: https://postgr.es/m/[email protected]
Discussion: https://postgr.es/m/[email protected]
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Commits 6c4a8903b et al. had a couple of deficiencies:
* The logic I added to Cluster::start to see if a PID file is present
could be fooled by a stale PID file left over from a previous
postmaster. To fix, if we're not sure whether we expect to find a
running postmaster or not, validate the PID using "kill 0".
* 017_shm.pl has a loop in which it just issues repeated Cluster::start
calls; this will fail if some invocation fails but leaves self->_pid
set. Per buildfarm results, the above fix is not enough to make this
safe: we might have "validated" a PID for a postmaster that exits
immediately after we look. Hence, match each failed start call with
a stop call that will get us back to the self->_pid == undef state.
Add a fail_ok option to Cluster::stop to make this work.
Discussion: https://postgr.es/m/CA+hUKGKV6fOHvfiPt8=dOKzvswjAyLoFoJF1iQXMNpi7+hD1JQ@mail.gmail.com
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"pg_ctl start" might start a new postmaster and then return failure
anyway, for example if PGCTLTIMEOUT is exceeded. If there is a
postmaster there, it's still incumbent on us to shut it down at
script end, so check for the PID file even though we are about
to fail.
This has been broken all along, so back-patch to all supported branches.
Discussion: https://postgr.es/m/[email protected]
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By default, wait_for_catchup() waits for the replication connection
to reach the primary's write LSN. That's fine, but in an apparent
attempt to save one query round-trip, it was coded so that we
executed pg_current_wal_lsn() again during each probe query.
Thus, we presented the standby with a moving target to be reached.
(While the test script itself couldn't be causing the write LSN
to advance while it's blocked in wait_for_catchup(), it's plenty
plausible that background activity such as autovacuum is emitting
more WAL.) That could make the test take longer than necessary,
and potentially it could mask bugs by allowing the standby to process
more WAL than a strict interpretation of the test scenario allows.
So, change wait_for_catchup() to do it "by the book", explicitly
collecting the write LSN to wait for at the outset.
Also, various call sites were instructing wait_for_catchup() to
wait for the standby to reach the primary's insert LSN rather than
its write LSN. This also seems like a bad idea. While in most
test scenarios those are the same, if they are different then the
inserted-but-not-yet-written WAL is not presently available to the
standby. The test isn't doing anything to make it become so, so
again we have the potential for unwanted test delay, perhaps even
a test timeout. (Again, background activity would be needed to
make this more than a hypothetical problem.) Hence, change the
callers where necessary so that the wait target is always the
primary's write LSN.
While at it, simplify callers by making use of wait_for_catchup's
default arguments wherever possible (the preceding change makes
this possible in more places than it was before). And rewrite
wait_for_catchup's documentation a bit.
Patch by me; thanks to Julien Rouhaud for review.
Discussion: https://postgr.es/m/[email protected]
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Prevent logical replication workers from performing insert, update,
delete, truncate, or copy commands on tables unless the subscription
owner has permission to do so.
Prevent subscription owners from circumventing row-level security by
forbidding replication into tables with row-level security policies
which the subscription owner is subject to, without regard to whether
the policy would ordinarily allow the INSERT, UPDATE, DELETE or
TRUNCATE which is being replicated. This seems sufficient for now, as
superusers, roles with bypassrls, and target table owners should still
be able to replicate despite RLS policies. We can revisit the
question of applying row-level security policies on a per-row basis if
this restriction proves too severe in practice.
Author: Mark Dilger
Reviewed-by: Jeff Davis, Andrew Dunstan, Ronan Dunklau
Discussion: https://postgr.es/m/9DFC88D3-1300-4DE8-ACBC-4CEF84399A53%40enterprisedb.com
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Backpatch-through: 10
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We need to replace windows-style \ path separators with / when putting socket
directories either in postgresql.conf or libpq connection strings, otherwise
they are interpreted as escapes.
Author: Andres Freund <[email protected]>
Reviewed-By: Peter Eisentraut <[email protected]>
Discussion: https://postgr.es/m/[email protected]
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Commits fdd965d07 and 3cd9c3b92 tested CREATE INDEX CONCURRENTLY by
launching two separate pgbench runs concurrently. This was needed so
that only a single client thread would run CREATE INDEX CONCURRENTLY,
avoiding deadlock between two CICs. However, there's a better way,
which is to use an advisory lock to prevent concurrent CICs. That's
better in part because the test code is shorter and more readable, but
mostly because it automatically scales things to launch an appropriate
number of CICs relative to the number of INSERT transactions.
As committed, typically half to three-quarters of the CIC transactions
were pointless because the INSERT transactions had already stopped.
In passing, remove background_pgbench, which was added to support
these tests and isn't needed anymore. We can always put it back
if we find a use for it later.
Back-patch to v12; older pgbench versions lack the
conditional-execution features needed for this method.
Tom Lane and Andrey Borodin
Discussion: https://postgr.es/m/[email protected]
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The five modules in our TAP test framework all had names in the top
level namespace. This is unwise because, even though we're not
exporting them to CPAN, the names can leak, for example if they are
exported by the RPM build process. We therefore move the modules to the
PostgreSQL::Test namespace. In the process PostgresNode is renamed to
Cluster, and TestLib is renamed to Utils. PostgresVersion becomes simply
PostgreSQL::Version, to avoid possible confusion about what it's the
version of.
Discussion: https://postgr.es/m/[email protected]
Reviewed by Erik Rijkers and Michael Paquier
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