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#!/usr/bin/perl -w |
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# PrepareSnapshot |
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# Vadim Mikheev, (c) 2000, PostgreSQL Inc. |
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|
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eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' |
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& eval 'exec perl -S $0 $argv:q' |
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if 0; |
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|
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BEGIN { |
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my $basedir = $0; $basedir =~ s#/[^/]+$##; |
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unshift(@INC, "$basedir/../share"); |
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} |
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|
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use strict; |
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use IO::File; |
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use Getopt::Long; |
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use RServ; |
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use Sys::Hostname; |
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|
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$| = 1; |
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|
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my ($debug,$verbose) = (0,0); |
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my ($help,$masterhost,$masterport,$masteruser,$masterpassword, |
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$slavehost,$slaveport,$slaveuser,$slavepassword); |
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my $snapshot = "__Snapshot"; |
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|
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my $result = GetOptions( |
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"debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help, |
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"masterhost=s" => \$masterhost, "masterport=i" => \$masterport, |
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"masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword, |
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"snapshot=s" => \$snapshot, |
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); |
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|
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if (defined($help) || (scalar(@ARGV) < 2)) { |
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print "Usage: $0 [options] masterdb slavedb |
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Options: |
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--masterhost=hostname --masterport=port |
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--masteruser=username --masterpassword=string |
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--snapshot=snapshot |
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"; |
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exit ((scalar(@ARGV) < 2)? 1:0); |
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} |
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|
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my $master = $ARGV[0] || "master"; |
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my $slave = $ARGV[1] || "slave"; |
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|
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my $minfo = "dbname=$master"; |
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$minfo = "$minfo host=$masterhost" if (defined($masterhost)); |
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$minfo = "$minfo port=$masterport" if (defined($masterport)); |
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$minfo = "$minfo user=$masteruser" if (defined($masteruser)); |
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$minfo = "$minfo password=$masterpassword" if (defined($masterpassword)); |
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|
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my $sinfo = "dbname=$slave"; |
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$sinfo = "$sinfo host=$slavehost" if (defined($slavehost)); |
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$sinfo = "$sinfo port=$slaveport" if (defined($slaveport)); |
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$sinfo = "$sinfo user=$slaveuser" if (defined($slaveuser)); |
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$sinfo = "$sinfo password=$slavepassword" if (defined($slavepassword)); |
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|
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my $mconn = Pg::connectdb($minfo); |
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if ($mconn->status != Pg::PGRES_CONNECTION_OK) { |
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print STDERR "Failed opening $minfo\n"; |
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exit 1; |
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} |
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my $sconn = Pg::connectdb($sinfo); |
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if ($sconn->status != Pg::PGRES_CONNECTION_OK) { |
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print STDERR "Failed opening $minfo\n"; |
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exit 1; |
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} |
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|
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my $outf; |
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if (defined($snapshot)) { |
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$outf = new IO::File; |
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$outf->open("> $snapshot"); |
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} else { |
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$outf = *STDOUT; |
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} |
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|
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my $hostname = defined($slavehost) ? $slavehost : hostname; |
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my $slaveId = GetSlaveId($mconn, $slave, $hostname); |
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if (! $slaveId) { |
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print STDERR "Can't find SlaveId for db '$slave' on host $hostname. Is this database slave?\n"; |
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exit 1; |
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} |
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die "Unknown SlaveId $slaveId for host $hostname" if ($slaveId < 0); |
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|
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my $res = PrepareSnapshot ($mconn, $sconn, $outf, $slaveId); |
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|
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if ($res == 0) |
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{ |
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printf STDERR "Sync-ed\n"; |
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exit(0); |
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} |
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if ($res > 0) |
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{ |
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printf STDERR "Snapshot dumped.\n"; |
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exit(0); |
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} |
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|
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printf STDERR "ERROR\n"; |
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exit(1); |
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