A follow-up patch will adjust the TAP tests to follow a more-structured
format for option lists in commands, that perltidy is able to cope
better with. Putting the tree first in a clean state makes the next
change a bit easier. v20230309 has been used.
Author: Dagfinn Ilmari Mannsåker
Discussion: https://postgr.es/m/87jzc46d8u.fsf@wibble.ilmari.org
These facilities were originally in the recovery TAP test
039_end_of_wal.pl. A follow-up bug fix with a TAP test doing similar
WAL manipulations requires them, and all these had better not be
duplicated due to their complexity. The routine names are tweaked to
use "wal" more consistently, similarly to the existing "advance_wal".
In v14 and v13, the new routines are moved to PostgresNode.pm.
039_end_of_wal.pl is updated to use the refactored routines, without
changing its coverage.
Reviewed-by: Alexander Kukushkin
Discussion: https://postgr.es/m/CAFh8B=mozC+e1wGJq0H=0O65goZju+6ab5AU7DEWCSUA2OtwDg@mail.gmail.com
Backpatch-through: 13
This commit introduces a new parameter named
autovacuum_worker_slots that controls how many autovacuum worker
slots to reserve during server startup. Modifying this new
parameter's value does require a server restart, but it should
typically be set to the upper bound of what you might realistically
need to set autovacuum_max_workers. With that new parameter in
place, autovacuum_max_workers can now be changed with a SIGHUP
(e.g., pg_ctl reload).
If autovacuum_max_workers is set higher than
autovacuum_worker_slots, a WARNING is emitted, and the server will
only start up to autovacuum_worker_slots workers at a given time.
If autovacuum_max_workers is set to a value less than the number of
currently-running autovacuum workers, the existing workers will
continue running, but no new workers will be started until the
number of running autovacuum workers drops below
autovacuum_max_workers.
Reviewed-by: Sami Imseih, Justin Pryzby, Robert Haas, Andres Freund, Yogesh Sharma
Discussion: https://postgr.es/m/20240410212344.GA1824549%40nathanxps13
Previously, the postmaster would never try to kill dead-end child
processes, even if there were no other processes left. A dead-end
backend will eventually exit, when authentication_timeout expires, but
if a dead-end backend is the only thing that's preventing the server
from shutting down, it seems better to kill it immediately. It's
particularly important, if there was a bug in the early startup code
that prevented a dead-end child from timing out and exiting normally.
Includes a test for that case where a dead-end backend previously
prevented the server from shutting down.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
This commit extends the constructor routine of BackgroundPsql.pm with a
new "wait" parameter. If set to 0, the routine returns without waiting
for psql to start, ready to consume input.
background_psql() in Cluster.pm gains the same "wait" parameter. The
default behavior is still to wait for psql to start. It becomes now
possible to not wait, giving to TAP scripts the possibility to perform
actions between a BackgroundPsql startup and its wait_connect() call.
Author: Jacob Champion
Discussion: https://postgr.es/m/CAOYmi+=60deN20WDyCoHCiecgivJxr=98s7s7-C8SkXwrCfHXg@mail.gmail.com
The arguments of the function were listed in an incorrect order in the
description of the routine. This information can be seen with perldoc.
Issue spotted while working on this area of the code.
Backpatch-through: 17
TAP tests can write
$node->init(no_data_checksums => 1);
to initialize a cluster explicitly without checksums. Currently, this
is the default, but this change allows running all tests with
checksums enabled, like
PG_TEST_INITDB_EXTRA_OPTS=--data-checksums meson test ...
And this also prepares the tests for when we switch the default to
checksums enabled.
The pg_checksums tests need to disable checksums so it can test its
own functionality of enabling checksums. The amcheck/pg_amcheck tests
need to disable checksums because they manually introduce corruption
that they want to detect, but with checksums enabled, the checksum
verification will fail before they even get to their work.
Author: Greg Sabino Mullane <greg@turnstep.com>
Reviewed-by: Nathan Bossart <nathandbossart@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://www.postgresql.org/message-id/flat/CAKAnmmKwiMHik5AHmBEdf5vqzbOBbcwEPHo4-PioWeAbzwcTOQ@mail.gmail.com
Remove unnecessary chatter about "checking if IO::Socket::UNIX works";
our tests should never print anything on stderr unless there's a
problem.
Add .gitignore entry for temporary directory now being left behind
in src/test/postmaster.
The code path for launching a dead-end backend because we're out of
slots was not covered by any tests, so add one. (Some tests did hit
the case of launching a dead-end backend because the server is still
starting up, though, so the gap in our test coverage wasn't as big as
it sounds.)
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
Commit 460c0076e8 added some module intialization code to set signal
handlers. However, that code has now become somewhat buried, as later
commits added new subroutines. Therefore, move the initialization code
to the module's INIT block where it won't become obscured.
This fixes defects with installcheck for TAP tests that expect the
module injection_points to exist in an installation, but the contents of
src/test/modules are not installed by default with installcheck. This
would cause, for example, failures under installcheck-world for a build
with injection points enabled, when the contents of src/test/modules/
are not installed.
The availability of the module can be done with a scan of
pg_available_extension. This has been introduced in 2cdcae9da6, and
it is refactored here as a new routine in Cluster.pm.
Tests are changed in different ways depending on what they need:
- The libpq TAP test sets up a node even without injection points, so it
is enough to check that CREATE EXTENSION can be used. There is no need
for the variable enable_injection_points.
- In test_misc, 006_signal_autovacuum requires a runtime check.
- 041_checkpoint_at_promote in recovery tests and 005_timeouts in
test_misc are updated to use the routine introduced in Cluster.pm.
- test_slru's 001_multixact, injection_points's 001_stats and
modules/gin/ do not require a check as these modules disable
installcheck entirely.
Discussion: https://postgr.es/m/ZtesYQ-WupeAK7xK@paquier.xyz
Cluster.pm's wait_for_catchup and allied subroutines don't provide
enough information to diagnose the problem when a wait times out.
In hopes of debugging some intermittent buildfarm failures, let's
dump the ending state of the relevant system view when that happens.
Add this to v17 too, but not stable branches.
Discussion: https://postgr.es/m/352068.1723422725@sss.pgh.pa.us
If we choose ports in the range typically used for ephemeral ports there
is a danger of encountering a port conflict due to a race condition
between the time we choose the port in a range below that typically used
to allocate ephemeral ports, but higher than the range typically used by
well known services.
Author: Jelte Fenema-Nio, with some editing by me.
Discussion: https://postgr.es/m/d6ee8761-39d1-0033-1afb-d5a57ee056f2@gmail.com
Backpatch to all live branches (12 and up)
Introduces an environment variable PG_TEST_PG_COMBINEBACKUP_MODE, that
determines copy mode used by pg_combinebackup in TAP tests. Defaults to
"--copy" but may be set to "--clone" or "--copy-file-range" to use the
alternative stategies.
Reported-by: Peter Eisentraut
Discussion: https://postgr.es/m/48da4a1f-ccd9-4988-9622-24f37b1de2b4%40eisentraut.org
Run pgindent, pgperltidy, and reformat-dat-files.
The pgindent part of this is pretty small, consisting mainly of
fixing up self-inflicted formatting damage from patches that
hadn't bothered to add their new typedefs to typedefs.list.
In order to keep it from making anything worse, I manually added
a dozen or so typedefs that appeared in the existing typedefs.list
but not in the buildfarm's list. Perhaps we should formalize that,
or better find a way to get those typedefs into the automatic list.
pgperltidy is as opinionated as always, and reformat-dat-files too.
Commit 6bf5c42b55 cannot work on Windows,
because it lacks symlink support. While the bug fix in commit
cd64dc42d1 is correct as far as I know,
the test case changes depend on the previous commit, so this will
have to live without test coverage until we can come up with a better
solution. Commit fa7036dd66 was a test
case bug fix on top of those two, to prevent failures on Linux, so that
has to come out as well.
Per the buildfarm, CI, and Thomas Munro.
This commit doesn't use this infrastructure for anything new, although
it does adapt 010_pg_basebackup.pl to use it. However, a future commit
will use this to improve test coverage for pg_combinebackup.
Patch by me, reviewed (but not fully endorsed) by Andres Freund.
Discussion: http://postgr.es/m/CA+TgmoYdXTjo9iQeoipTccDpWZzvBNS6EndY2uARM+T4yG_yDg@mail.gmail.com
This commit does two things:
1) Maintains inactive_since for sync slots whenever the slot is released
just like any other regular slot.
2) Ensures the value is set to the current timestamp during the promotion
of standby to help correctly interpret the time after promotion. We don't
want the slots to appear inactive for a long time after promotion if they
haven't been synchronized recently. This would also avoid the invalidation
of such slots immediately after promotion if tomorrow we have a feature
that invalidates slots based on their inactivity time. Whoever acquires
the slot i.e. makes the slot active will reset it to NULL.
Author: Bharath Rupireddy
Reviewed-by: Bertrand Drouvot, Amit Kapila, Shveta Malik, Masahiko Sawada
Discussion: https://postgr.es/m/CAA4eK1KrPGwfZV9LYGidjxHeW+rxJ=E2ThjXvwRGLO=iLNuo=Q@mail.gmail.com
Discussion: https://postgr.es/m/CALj2ACW4aUe-_uFQOjdWCEN-xXoLGhmvRFnL8SNw_TZ5nJe+aw@mail.gmail.com
Discussion: https://postgr.es/m/CA+Tgmob_Ta-t2ty8QrKHBGnNLrf4ZYcwhGHGFsuUoFrAEDw4sA@mail.gmail.com
This checks that certain I/O-related Perl functions properly check
their return value. Some parts of the PostgreSQL code had been a bit
sloppy about that. The new perlcritic warnings are fixed here. I
didn't design any beautiful error messages, mostly just used "or die
$!", which mostly matches existing code, and also this is
developer-level code, so having the system error plus source code
reference should be ok.
Initially, we only activate this check for a subset of what the
perlcritic check would warn about. The effective list is
chmod flock open read rename seek symlink system
The initial set of functions is picked because most existing code
already checked the return value of those, so any omissions are
probably unintended, or because it seems important for test
correctness.
The actual perlcritic configuration is written as an exclude list.
That seems better so that we are clear on what we are currently not
checking. Maybe future patches want to investigate checking some of
the other functions. (In principle, we might eventually want to check
all of them, but since this is test and build support code, not
production code, there are probably some reasonable compromises to be
made.)
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://www.postgresql.org/message-id/flat/88b7d4f2-46d9-4cc7-b1f7-613c90f9a76a%40eisentraut.org
This routine has been removed in 39969e2a1e with the exclusive backup
mode but there were still references to it.
Issue noticed while working on 071e3ad59d.
Per a demand from the author and the reviewer of this commit, this adds
to Cluster.pm a helper routine that can be used to monitor when a
process reaches a wanted wait event. This can be used in combination
with the module injection_points for the "wait" callback, though it is
not limited to it as this monitors pg_stat_activity for a wait_event and
a backend_type.
Author: Bertrand Drouvot
Reviewed-by: Andrey Borodin
Discussion: https://postgr.es/m/ZeBB4RMPEZ06TcdY@ip-10-97-1-34.eu-west-3.compute.internal
This option is useful to bypass the default behavior of init() which
would create the data folder of a new cluster by copying it from a
template previously initdb'd, if any. Copying the data folder is much
cheaper than running initdb, but some tests may want to force that. For
example, one scenario of pg_combinebackup updated in this commit needs a
different system ID for two nodes.
Previously, this could only be achieved by unsetting
$ENV{'INITDB_TEMPLATE'}, which could become a problem in complex node
setups by making tests less efficient.
Author: Amul Sul
Reviewed-by: Robert Haas, Michael Paquier
Discussion: https://postgr.es/m/Zc1tX9lLonLGu6oH@paquier.xyz
Before the previous commit, the test could hang until
LOG_SNAPSHOT_INTERVAL_MS (15s), until checkpoint_timeout (300s), or
indefinitely. An indefinite hang was awfully improbable. It entailed
the test reaching checkpoint_timeout before the
DecodingContextFindStartpoint() of a CREATE SUBSCRIPTION, yet after the
preceding WAL record. Back-patch to v16, which introduced the test.
Bertrand Drouvot, reported by Noah Misch.
Discussion: https://postgr.es/m/20240211010227.a2.nmisch@google.com
Setting the environment variable PG_TEST_INITDB_EXTRA_OPTS passes
extra options to initdb run by pg_regress or
PostgreSQL::Test::Cluster's init.
This can be useful for a wide variety of uses, like running all tests
with checksums enabled, or with JIT enabled, or with different GUC
settings, or with different locale settings. (Not all tests are going
to pass with arbitrary options, but it is useful to run this against
specific test suites.)
Reviewed-by: Ian Lawrence Barwick <barwick@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/d4d2ad9f-1c1d-47a1-bb4d-c10a747d4f15%40eisentraut.org
Due to the commit c5385929 which made all Perl warnings to fatal, use
of PostgreSQL::Test::Cluster:psql() and safe_psql() with timeout
started to fail with the following error:
Use of uninitialized value $ret in bitwise and (&) at
..src/test/perl/PostgreSQL/Test/Cluster.pm line 2015.
Fix that by placing $ret conversion code in psql() in an if (defined
$ret) block.
With this change, the behavior of psql() becomes same as before, that
is, the whole function returns undef on timeout, which is usefully
different from returning 0.
Author: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
There are a lot of Perl scripts in the tree, mostly code generation
and TAP tests. Occasionally, these scripts produce warnings. These
are probably always mistakes on the developer side (true positives).
Typical examples are warnings from genbki.pl or related when you make
a mess in the catalog files during development, or warnings from tests
when they massage a config file that looks different on different
hosts, or mistakes during merges (e.g., duplicate subroutine
definitions), or just mistakes that weren't noticed because there is a
lot of output in a verbose build.
This changes all warnings into fatal errors, by replacing
use warnings;
by
use warnings FATAL => 'all';
in all Perl files.
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
Commit 664d75753 pulled 010_tab_completion.pl's infrastructure for
invoking an interactive psql session out into a generally-useful test
function, but it didn't move enough stuff. We need to set up various
environment variables that readline will look at, both to ensure
stability of test results and to prevent test actions from cluttering
the calling user's ~/.psql_history. Expecting calling scripts to
remember to do that is too failure-prone: the other existing caller
001_password.pl did not do it. Hence, remove those initialization
steps from 010_tab_completion.pl and put them into interactive_psql().
Since interactive_psql was already making a local ENV hash, this has
no effect on calling scripts.
Discussion: https://postgr.es/m/794610.1703182896@sss.pgh.pa.us
This is a function that makes a node jump by N WAL segments, which is
something a couple of tests have been relying on for some cases related
to streaming, replication slot limits and logical decoding on standbys.
Hence, this centralizes the logic, while making it cheaper by relying on
pg_logical_emit_message() to emit WAL records before switching to a new
segment.
Author: Bharath Rupireddy
Reviewed-by: Kyotaro Horiguchi, Euler Taveira
Discussion: https://postgr.es/m/CALj2ACU3R8QFCvDewHCMKjgb2w_-CMCyd6DAK=Jb-af14da5eg@mail.gmail.com
To take an incremental backup, you use the new replication command
UPLOAD_MANIFEST to upload the manifest for the prior backup. This
prior backup could either be a full backup or another incremental
backup. You then use BASE_BACKUP with the INCREMENTAL option to take
the backup. pg_basebackup now has an --incremental=PATH_TO_MANIFEST
option to trigger this behavior.
An incremental backup is like a regular full backup except that
some relation files are replaced with files with names like
INCREMENTAL.${ORIGINAL_NAME}, and the backup_label file contains
additional lines identifying it as an incremental backup. The new
pg_combinebackup tool can be used to reconstruct a data directory
from a full backup and a series of incremental backups.
Patch by me. Reviewed by Matthias van de Meent, Dilip Kumar, Jakub
Wartak, Peter Eisentraut, and Álvaro Herrera. Thanks especially to
Jakub for incredibly helpful and extensive testing.
Discussion: http://postgr.es/m/CA+TgmoYOYZfMCyOXFyC-P+-mdrZqm5pP2N7S-r0z3_402h9rsA@mail.gmail.com
Previously, a background psql session uses the default timeout and it
cannot be overridden. This change adds a new option to set the timeout
during start.
There are no users of this new option. It is needed for an upcoming
patch adding tests for XID wraparound.
Reviewed-by: Daniel Gustafsson, Noah Misch
Discussion: https://postgr.es/m/C9CF2F76-0D81-4C9D-9832-202BE8517056%40yesql.se
The SSL tests for pg_ctl restart with an incorrect key passphrase used
the internal _update_pid method to set the pidfile after running pg_ctl
manually instead of using the supplied ->restart method. This refactors
the ->restart method to accept a fail_ok parameter like how ->start and
->stop does, and changes the SSL tests to use this instead. This removes
the need to call internal test module functions.
Reviewed-by: Melih Mutlu <m.melihmutlu@gmail.com>
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://postgr.es/m/F81643C4-D7B8-4C6B-AF18-B73839966279@yesql.se
When running all (or just many) of our tests, a significant portion of both
CPU time and IO is spent running initdb. Most of those initdb runs don't
specify any options influencing properties of the created data directory.
Avoid most of that overhead by creating a "template" data directory, alongside
the temporary installation. Instead of running initdb, pg_regress and tap
tests can copy that data directory. When a tap test specifies options to
initdb, the template data directory is not used. That could be relaxed for
some options, but it's not clear it's worth the effort.
There unfortunately is some duplication between pg_regress.c and Cluster.pm,
but there are no easy ways of sharing that code without introducing additional
complexity.
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/20220120021859.3zpsfqn4z7ob7afz@alap3.anarazel.de
getprotobyname returns undefined on some CI machines. It's not clear
why. The code overall still works, but it raises a warning.
In PostgreSQL C code, we always call socket() with 0 for the protocol
argument, so we should be able to do the same in Perl (since the Perl
documentation says that the arguments of the socket function are the
same as in C). So do that, to avoid the issue.
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://www.postgresql.org/message-id/flat/06f899fd-1826-05ab-42d6-adeb1fd5e200%40eisentraut.org
The same routine to check if a specific pattern can be found in the
server logs was copied over four different test scripts. This refactors
the whole to use a single routine located in PostgreSQL::Test::Cluster,
named log_contains, to grab the contents of the server logs and check
for a specific pattern.
On HEAD, the code previously used assumed that slurp_file() could not
handle an undefined offset, setting it to zero, but slurp_file() does
do an extra fseek() before retrieving the log contents only if an offset
is defined. In two places, the test was retrieving the full log
contents with slurp_file() after calling substr() to apply an offset,
ignoring that slurp_file() would be able to handle that.
Backpatch all the way down to ease the introduction of new tests that
could rely on the new routine.
Author: Vignesh C
Reviewed-by: Andrew Dunstan, Dagfinn Ilmari Mannsåker, Michael Paquier
Discussion: https://postgr.es/m/CALDaNm0YSiLpjCmajwLfidQrFOrLNKPQir7s__PeVvh9U3uoTQ@mail.gmail.com
Backpatch-through: 11
This commit refactors a bit the code in charge of checking for log
patterns when connections fail or succeed, by moving the log pattern
checks into their own routine, for clarity. This has come up as
something to improve while discussing the refactoring of find_in_log().
Backpatch down to 14 where these routines are used, to ease the
introduction of new tests that could rely on them.
Author: Vignesh C, Michael Paquier
Discussion: https://postgr.es/m/CALDaNm0YSiLpjCmajwLfidQrFOrLNKPQir7s__PeVvh9U3uoTQ@mail.gmail.com
Backpatch-through: 14
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
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 <andres@anarazel.de>
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/20230130194350.zj5v467x4jgqt3d6@awork3.anarazel.de
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 <postgres@jeltef.nl>
Reviewed-by: Aleksander Alekseev <aleksander@timescale.com>
Reviewed-by: Michael Banck <mbanck@gmx.net>
Reviewed-by: Andrey Borodin <amborodin86@gmail.com>
Discussion: https://postgr.es/m/PR3PR83MB04768E2FF04818EEB2179949F7A69@PR3PR83MB0476.EURPRD83.prod.outlook.
