mirror of
https://github.com/pgbackrest/pgbackrest.git
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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.
165 lines
5.7 KiB
Perl
165 lines
5.7 KiB
Perl
####################################################################################################################################
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# COMMON EXIT MODULE
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####################################################################################################################################
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package pgBackRest::Common::Exit;
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use strict;
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use warnings FATAL => qw(all);
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use Carp qw(confess);
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use Exporter qw(import);
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our @EXPORT = qw();
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use File::Basename qw(dirname);
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use Scalar::Util qw(blessed);
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use lib dirname($0) . '/../lib';
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use pgBackRest::Common::Exception;
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use pgBackRest::Common::Lock;
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use pgBackRest::Common::Log;
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use pgBackRest::Config::Config;
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####################################################################################################################################
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# Operation constants
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####################################################################################################################################
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use constant OP_EXIT => 'Exit';
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use constant OP_EXIT_SAFE => OP_EXIT . '::exitSafe';
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####################################################################################################################################
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# Signal constants
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####################################################################################################################################
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use constant SIGNAL_HUP => 'HUP';
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use constant SIGNAL_INT => 'INT';
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use constant SIGNAL_TERM => 'TERM';
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####################################################################################################################################
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# Hook important signals into exitSafe function
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####################################################################################################################################
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$SIG{&SIGNAL_HUP} = sub {exitSafe(-1, SIGNAL_HUP)};
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$SIG{&SIGNAL_INT} = sub {exitSafe(-1, SIGNAL_INT)};
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$SIG{&SIGNAL_TERM} = sub {exitSafe(-1, SIGNAL_TERM)};
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####################################################################################################################################
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# Module variables
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####################################################################################################################################
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my $iThreadMax = 1; # Total threads that were started for processing
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my $bRemote = false; # Is the process a remote?
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####################################################################################################################################
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# exitInit
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#
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# Initialize exit so it knows if threads need to be terminated.
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####################################################################################################################################
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sub exitInit
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{
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my $iThreadMaxParam = shift;
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my $bRemoteParam = shift;
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if (defined($iThreadMaxParam) && $iThreadMaxParam > 1)
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{
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# Load module dynamically
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require pgBackRest::Protocol::ThreadGroup;
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pgBackRest::Protocol::ThreadGroup->import();
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$iThreadMax = $iThreadMaxParam;
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}
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if (defined($bRemoteParam))
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{
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$bRemote = $bRemoteParam;
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}
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}
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push @EXPORT, qw(exitInit);
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####################################################################################################################################
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# exitSafe
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#
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# Terminate all threads and SSH connections when the script is terminated.
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####################################################################################################################################
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sub exitSafe
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{
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# Assign function parameters, defaults, and log debug info
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my
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(
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$strOperation,
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$iExitCode,
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$strSignal
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) =
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logDebugParam
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(
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OP_EXIT_SAFE, \@_,
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{name => 'iExitCode'},
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{name => 'strSignal', required => false}
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);
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commandStop();
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# Stop threads if threading is enabled
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my $iThreadsStopped = 0;
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if ($iThreadMax > 1)
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{
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&log(DEBUG, "stop ${iThreadMax} threads");
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# Don't fail if the threads cannot be stopped
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eval
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{
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$iThreadsStopped = threadGroupDestroy();
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};
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if ($@ && defined($iExitCode))
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{
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&log(WARN, "unable to stop threads: $@");
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}
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}
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# Don't fail if protocol cannot be destroyed
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eval
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{
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protocolDestroy();
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};
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if ($@ && defined($iExitCode))
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{
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my $oMessage = $@;
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if (blessed($oMessage) && $oMessage->isa('pgBackRest::Common::Exception'))
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{
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&log(WARN, 'unable to shutdown protocol (' . $oMessage->code() . '): ' . $oMessage->message());
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exit $oMessage->code();
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}
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&log(WARN, "unable to shutdown protocol: $oMessage");
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}
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# Don't fail if the lock can't be released
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eval
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{
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lockRelease(false);
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};
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# Exit with code when defined
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if ($iExitCode != -1)
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{
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exit $iExitCode;
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}
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# Log error based on where the signal came from
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&log(ERROR, 'process terminated ' .
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(defined($strSignal) ? "on a ${strSignal} signal" : 'due to an unhandled exception') .
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($iThreadsStopped > 0 ? ", ${iThreadsStopped} threads stopped" : ''),
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defined($strSignal) ? ERROR_TERM : ERROR_UNHANDLED_EXCEPTION);
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# If terminated by a signal exit with 0 code
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exit ERROR_TERM if defined($strSignal);
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# Return from function and log return values if any
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return logDebugReturn($strOperation);
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}
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push @EXPORT, qw(exitSafe);
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1;
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