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103 lines
2.8 KiB
Perl
103 lines
2.8 KiB
Perl
# -*- perl -*-
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# Replicate
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# Vadim Mikheev, (c) 2000, PostgreSQL Inc.
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eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}'
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& eval 'exec perl -S $0 $argv:q'
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if 0;
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use lib "@LIBDIR@";
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use IO::File;
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use Getopt::Long;
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use RServ;
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$| = 1;
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$result = GetOptions("debug!", "verbose!", "help", "snapshot=s",
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"masterhost=s", "slavehost=s", "host=s",
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"masteruser=s", "slaveuser=s", "user=s",
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"masterpassword=s", "slavepassword=s", "password=s");
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my $debug = $opt_debug || 0;
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my $verbose = $opt_verbose || 0;
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my $snapshot = $opt_snapshot || "__Snapshot";
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if (defined($opt_help) || (scalar(@ARGV) < 2)) {
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print "Usage: $0 --snapshot=file --host=name --user=name --password=string masterdb slavedb\n";
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print "\t--masterhost=name --masteruser=name --masterpassword=string\n";
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print "\t--slavehost=name --slaveuser=name --slavepassword=string\n";
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exit ((scalar(@ARGV) < 2)? 1:0);
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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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my $server = 0;
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my $minfo = "dbname=$master";
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$minfo = "$minfo host=$opt_masterhost" if (defined($opt_masterhost));
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$minfo = "$minfo user=$opt_masteruser" if (defined($opt_masteruser));
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$minfo = "$minfo password=$opt_masterpassword" if (defined($opt_masterpassword));
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my $sinfo = "dbname=$slave";
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$sinfo = "$sinfo host=$opt_slavehost" if (defined($opt_slavehost));
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$sinfo = "$sinfo user=$opt_slaveuser" if (defined($opt_slaveuser));
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$sinfo = "$sinfo password=$opt_slavepassword" if (defined($opt_slavepassword));
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print "Master connection is $minfo\n" if ($debug);
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print "Slave connection is $sinfo\n" if ($debug);
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my $mconn = Pg::connectdb($minfo);
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my $sconn = Pg::connectdb($sinfo);
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$RServ::quiet = !$verbose;
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SyncSync($mconn, $sconn);
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my $outf = new IO::File;
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open $outf, ">$snapshot";
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print "\n>>>>>>>>>>>>> Prepare Snapshot\n\n" if ($verbose);
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$res = PrepareSnapshot($mconn, $outf, $server);
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close $outf;
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die "\n>>>>>>>>>>>>> ERROR\n" if $res < 0;
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if ($res == 0)
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{
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print "\n>>>>>>>>>>>>> DBases are sync-ed\n" if ($verbose);
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exit(0);
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}
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my $inpf = new IO::File;
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open $inpf, "<$snapshot";
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print "\n>>>>>>>>>>>>> Apply Snapshot\n\n" if ($verbose);
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$res = ApplySnapshot($sconn, $inpf);
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close $inpf;
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die "\n>>>>>>>>>>>>> ERROR\n" if $res < 0;
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if ($res > 0)
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{
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print "Snapshot applied\n" if ($verbose);
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unlink $snapshot unless ($debug);
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SyncSync($mconn, $sconn);
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}
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exit(0);
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###########################################################################
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sub SyncSync
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{
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($mconn, $sconn) = @_;
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print "\n>>>>>>>>>>>>> Sync SyncID\n\n" if ($verbose);
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print "Get last SyncID from Slave DB\n" if ($verbose);
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$syncid = GetSyncID($sconn);
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if ($syncid > 0)
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{
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print "Last SyncID applied: $syncid\n" if ($verbose);
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print "Sync SyncID\n" if ($verbose);
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$res = SyncSyncID($mconn, $server, $syncid);
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print "Succeeded\n" if (($res > 0) && ($verbose));
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}
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}
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