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fa4a4df93c
Create a log file for each test run. Stdout and stderr of the test script,
as well as any subprocesses run as part of the test, are redirected to
the log file. This makes it a lot easier to debug test failures. Also print
the test output (ok 12 - ... messages) to the log file, and the command
line of any external programs executed with the system_or_bail and run_log
functions. This makes it a lot easier to debug failing tests.
Modify some of the pg_ctl and other command invocations to not use 'silent'
or 'quiet' options, and don't redirect output to /dev/null, so that you get
all the information in the log instead.
In the passing, construct some command lines in a way that works if $tempdir
contains quote-characters. I haven't systematically gone through all of
them or tested that, so I don't know if this is enough to make that work.
pg_rewind tests had a custom mechanism for creating a similar log file. Use
the new generic facility instead.
Michael Paquier and Heikki Linnakangas.
This is a backpatch of Heikki's commit 1ea06203b8.
95 lines
2.6 KiB
Perl
95 lines
2.6 KiB
Perl
use strict;
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use warnings;
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use TestLib;
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use Test::More tests => 8;
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use RewindTest;
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sub run_test
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{
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my $test_mode = shift;
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RewindTest::setup_cluster();
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# Create a test table and insert a row in master.
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master_psql("CREATE TABLE tbl1 (d text)");
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master_psql("INSERT INTO tbl1 VALUES ('in master')");
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# This test table will be used to test truncation, i.e. the table
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# is extended in the old master after promotion
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master_psql("CREATE TABLE trunc_tbl (d text)");
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master_psql("INSERT INTO trunc_tbl VALUES ('in master')");
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# This test table will be used to test the "copy-tail" case, i.e. the
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# table is truncated in the old master after promotion
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master_psql("CREATE TABLE tail_tbl (id integer, d text)");
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master_psql("INSERT INTO tail_tbl VALUES (0, 'in master')");
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master_psql("CHECKPOINT");
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RewindTest::create_standby();
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# Insert additional data on master that will be replicated to standby
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master_psql("INSERT INTO tbl1 values ('in master, before promotion')");
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master_psql(
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"INSERT INTO trunc_tbl values ('in master, before promotion')");
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master_psql(
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"INSERT INTO tail_tbl SELECT g, 'in master, before promotion: ' || g FROM generate_series(1, 10000) g"
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);
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master_psql('CHECKPOINT');
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RewindTest::promote_standby();
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# Insert a row in the old master. This causes the master and standby
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# to have "diverged", it's no longer possible to just apply the
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# standy's logs over master directory - you need to rewind.
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master_psql("INSERT INTO tbl1 VALUES ('in master, after promotion')");
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# Also insert a new row in the standby, which won't be present in the
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# old master.
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standby_psql("INSERT INTO tbl1 VALUES ('in standby, after promotion')");
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# Insert enough rows to trunc_tbl to extend the file. pg_rewind should
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# truncate it back to the old size.
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master_psql(
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"INSERT INTO trunc_tbl SELECT 'in master, after promotion: ' || g FROM generate_series(1, 10000) g"
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);
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# Truncate tail_tbl. pg_rewind should copy back the truncated part
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# (We cannot use an actual TRUNCATE command here, as that creates a
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# whole new relfilenode)
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master_psql("DELETE FROM tail_tbl WHERE id > 10");
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master_psql("VACUUM tail_tbl");
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RewindTest::run_pg_rewind($test_mode);
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check_query(
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'SELECT * FROM tbl1',
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qq(in master
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in master, before promotion
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in standby, after promotion
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),
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'table content');
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check_query(
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'SELECT * FROM trunc_tbl',
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qq(in master
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in master, before promotion
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),
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'truncation');
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check_query(
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'SELECT count(*) FROM tail_tbl',
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qq(10001
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),
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'tail-copy');
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RewindTest::clean_rewind_test();
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}
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# Run the test in both modes
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run_test('local');
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run_test('remote');
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exit(0);
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