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Implement "pg_ctl logrotate" command

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Currently there are two ways to trigger log rotation in logging collector
process: call pg_rotate_logfile() SQL-function or send SIGUSR1 signal directly
to logging collector process.  However, it's nice to have more suitable way
for external tools to do that, which wouldn't require SQL connection or
knowledge of logging collector pid.  This commit implements triggering log
rotation by "pg_ctl logrotate" command.

Discussion: https://postgr.es/m/20180416.115435.28153375.horiguchi.kyotaro%40lab.ntt.co.jp
Author: Kyotaro Horiguchi, Alexander Kuzmenkov, Alexander Korotkov
This commit is contained in:
Alexander Korotkov
2018-09-01 19:46:49 +03:00
parent ab0ed6153a
commit ec74369931
8 changed files with 230 additions and 19 deletions
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21
src/test/perl/PostgresNode.pm
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@ -804,6 +804,27 @@ sub promote
return;
}
=pod
=item $node->logrotate()
Wrapper for pg_ctl logrotate
=cut
sub logrotate
{
my ($self) = @_;
my $port = $self->port;
my $pgdata = $self->data_dir;
my $logfile = $self->logfile;
my $name = $self->name;
print "### Rotating log in node \"$name\"\n";
TestLib::system_or_bail('pg_ctl', '-D', $pgdata, '-l', $logfile,
'logrotate');
return;
}
# Internal routine to enable streaming replication on a standby node.
sub enable_streaming
{