mirror of
https://github.com/pgbackrest/pgbackrest.git
synced 2024-12-14 10:13:05 +02:00
18fd25233b
* The repo-path option now always refers to the repository where backups and archive are stored, whether local or remote, so the repo-remote-path option has been removed. The new spool-path option can be used to define a location for queueing WAL segments when archiving asynchronously. Otherwise, a local repository is no longer required. * Implemented a new config format which should be far simpler to use. See the User Guide and Configuration Reference for details but for a simple configuration all options can now be placed in the stanza section. Options that are shared between stanzas can be placed in the [global] section. More complex configurations can still make use of command sections though this should be a rare use case. * The default configuration filename is now pgbackrest.conf instead of pg_backrest.conf. This was done for consistency with other naming changes but also to prevent old config files from being loaded accidentally. * The default repository name was changed from /var/lib/backup to /var/lib/pgbackrest. * Lock files are now stored in /tmp/pgbackrest by default. These days /run/pgbackrest would be the preferred location but that would require init scripts which are not part of this release. The lock-path option can be used to configure the lock directory. * Log files are now stored in /var/log/pgbackrest by default and no longer have the date appended so they can be managed with logrotate. The log-path option can be used to configure the lock directory. * Executable filename changed from pg_backrest to pgbackrest.
228 lines
7.4 KiB
Perl
228 lines
7.4 KiB
Perl
####################################################################################################################################
|
|
# PROTOCOL COMMON MINION MODULE
|
|
####################################################################################################################################
|
|
package pgBackRest::Protocol::CommonMinion;
|
|
use parent 'pgBackRest::Protocol::Common';
|
|
|
|
use strict;
|
|
use warnings FATAL => qw(all);
|
|
use Carp qw(confess);
|
|
|
|
use File::Basename qw(dirname);
|
|
use Scalar::Util qw(blessed);
|
|
|
|
use lib dirname($0) . '/../lib';
|
|
use pgBackRest::Common::Exception;
|
|
use pgBackRest::Common::Ini;
|
|
use pgBackRest::Common::Log;
|
|
use pgBackRest::Common::String;
|
|
use pgBackRest::Config::Config;
|
|
use pgBackRest::Protocol::Common;
|
|
use pgBackRest::Protocol::IO;
|
|
|
|
####################################################################################################################################
|
|
# Operation constants
|
|
####################################################################################################################################
|
|
use constant OP_PROTOCOL_COMMON_MINION => 'Protocol::CommonMinion';
|
|
|
|
use constant OP_PROTOCOL_COMMON_MINION_NEW => OP_PROTOCOL_COMMON_MINION . "->new";
|
|
|
|
####################################################################################################################################
|
|
# CONSTRUCTOR
|
|
####################################################################################################################################
|
|
sub new
|
|
{
|
|
my $class = shift; # Class name
|
|
|
|
# Assign function parameters, defaults, and log debug info
|
|
my
|
|
(
|
|
$strOperation,
|
|
$strName, # Name of the protocol
|
|
$strCommand, # Command the master process is running
|
|
$iBufferMax, # Maximum buffer size
|
|
$iCompressLevel, # Set compression level
|
|
$iCompressLevelNetwork, # Set compression level for network only compression
|
|
$iProtocolTimeout # Protocol timeout
|
|
) =
|
|
logDebugParam
|
|
(
|
|
OP_PROTOCOL_COMMON_MINION_NEW, \@_,
|
|
{name => 'strName'},
|
|
{name => 'strCommand'},
|
|
{name => 'iBufferMax'},
|
|
{name => 'iCompressLevel'},
|
|
{name => 'iCompressLevelNetwork'},
|
|
{name => 'iProtocolTimeout'}
|
|
);
|
|
|
|
# Create the class hash
|
|
my $self = $class->SUPER::new($iBufferMax, $iCompressLevel, $iCompressLevelNetwork, $iProtocolTimeout, $strName);
|
|
bless $self, $class;
|
|
|
|
$self->{strCommand} = $strCommand;
|
|
|
|
# Create the IO object with std io
|
|
$self->{io} = new pgBackRest::Protocol::IO(*STDIN, *STDOUT, *STDERR, undef, $iProtocolTimeout, $iBufferMax);
|
|
|
|
# Write the greeting so master process knows who we are
|
|
$self->greetingWrite();
|
|
|
|
return $self;
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# greetingWrite
|
|
#
|
|
# Send a greeting to the master process.
|
|
####################################################################################################################################
|
|
sub greetingWrite
|
|
{
|
|
my $self = shift;
|
|
|
|
$self->{io}->lineWrite($self->{strGreeting});
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# textWrite
|
|
#
|
|
# Write text out to the protocol layer prefixing each line with a period.
|
|
####################################################################################################################################
|
|
sub textWrite
|
|
{
|
|
my $self = shift;
|
|
my $strBuffer = shift;
|
|
|
|
$strBuffer =~ s/\n/\n\./g;
|
|
|
|
$self->{io}->lineWrite('.' . $strBuffer);
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# binaryXferAbort
|
|
#
|
|
# Abort transfer when source file does not exist.
|
|
####################################################################################################################################
|
|
sub binaryXferAbort
|
|
{
|
|
my $self = shift;
|
|
|
|
# Only allow in the backend process
|
|
$self->{io}->lineWrite('block -1');
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# errorWrite
|
|
#
|
|
# Write errors with error codes in protocol format, otherwise write to stderr and exit with error.
|
|
####################################################################################################################################
|
|
sub errorWrite
|
|
{
|
|
my $self = shift;
|
|
my $oMessage = shift;
|
|
|
|
my $iCode;
|
|
my $strMessage;
|
|
|
|
# If the message is blessed it may be a standard exception
|
|
if (blessed($oMessage))
|
|
{
|
|
# Check if it is a standard exception
|
|
if ($oMessage->isa('pgBackRest::Common::Exception'))
|
|
{
|
|
$iCode = $oMessage->code();
|
|
$strMessage = $oMessage->message();
|
|
}
|
|
# Else terminate the process with an error
|
|
else
|
|
{
|
|
confess &log(ERROR, 'unknown error object', ERROR_UNKNOWN);
|
|
}
|
|
}
|
|
# Else terminate the process with an error
|
|
else
|
|
{
|
|
confess &log(ERROR, 'unknown error: ' . $oMessage, ERROR_UNKNOWN);
|
|
}
|
|
|
|
# Write the message text into protocol
|
|
if (defined($strMessage))
|
|
{
|
|
$self->textWrite(trim($strMessage));
|
|
}
|
|
|
|
# Indicate that an error ocurred and provide the code
|
|
$self->{io}->lineWrite("ERROR" . (defined($iCode) ? " $iCode" : ''));
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# outputWrite
|
|
#
|
|
# Write output for the master process.
|
|
####################################################################################################################################
|
|
sub outputWrite
|
|
{
|
|
my $self = shift;
|
|
my $strOutput = shift;
|
|
|
|
if (defined($strOutput))
|
|
{
|
|
$self->textWrite($strOutput);
|
|
}
|
|
|
|
$self->{io}->lineWrite('OK');
|
|
}
|
|
|
|
####################################################################################################################################
|
|
# cmdRead
|
|
#
|
|
# Read command sent by the master process.
|
|
####################################################################################################################################
|
|
sub cmdRead
|
|
{
|
|
my $self = shift;
|
|
my $oParamHashRef = shift;
|
|
|
|
my $strLine;
|
|
my $strCommand;
|
|
|
|
while ($strLine = $self->{io}->lineRead())
|
|
{
|
|
if (!defined($strCommand))
|
|
{
|
|
if ($strLine =~ /:$/)
|
|
{
|
|
$strCommand = substr($strLine, 0, length($strLine) - 1);
|
|
}
|
|
else
|
|
{
|
|
$strCommand = $strLine;
|
|
last;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ($strLine eq 'end')
|
|
{
|
|
last;
|
|
}
|
|
|
|
my $iPos = index($strLine, '=');
|
|
|
|
if ($iPos == -1)
|
|
{
|
|
confess "param \"${strLine}\" is missing = character";
|
|
}
|
|
|
|
my $strParam = substr($strLine, 0, $iPos);
|
|
my $strValue = substr($strLine, $iPos + 1);
|
|
|
|
${$oParamHashRef}{"${strParam}"} = ${strValue};
|
|
}
|
|
}
|
|
|
|
return $strCommand;
|
|
}
|
|
|
|
1;
|