/[rserv]/bin/Replicate
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 1.8 by dpavlin, Sun Aug 10 13:21:50 2003 UTC revision 1.11 by dpavlin, Wed Oct 29 18:00:18 2003 UTC
# Line 23  my ($debug,$verbose) = (0,0); Line 23  my ($debug,$verbose) = (0,0);
23  my ($help,$masterhost,$masterport,$masteruser,$masterpassword,  my ($help,$masterhost,$masterport,$masteruser,$masterpassword,
24          $slavehost,$slaveport,$slaveuser,$slavepassword);          $slavehost,$slaveport,$slaveuser,$slavepassword);
25  my $snapshot = ".__Snapshot";  my $snapshot = ".__Snapshot";
26    my $mserver = 0;
27    
28  my $result = GetOptions(  my $result = GetOptions(
29          "debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help,          "debug!" => \$debug, "verbose!" => \$verbose, "help" => \$help,
# Line 31  my $result = GetOptions( Line 32  my $result = GetOptions(
32          "slavehost=s" => \$slavehost, "slaveport=i" => \$slaveport,          "slavehost=s" => \$slavehost, "slaveport=i" => \$slaveport,
33          "slaveuser=s" => \$slaveuser, "slavepassword=s" => \$slavepassword,          "slaveuser=s" => \$slaveuser, "slavepassword=s" => \$slavepassword,
34          "snapshot=s" => \$snapshot,          "snapshot=s" => \$snapshot,
35            "masterserver=i" => \$mserver,
36          );          );
37    
38  if (defined($help) || (scalar(@ARGV) < 2)) {  if (defined($help) || (scalar(@ARGV) < 2)) {
# Line 39  Options: Line 41  Options:
41          --masterhost=hostname --masterport=port          --masterhost=hostname --masterport=port
42          --masteruser=username --masterpassword=string          --masteruser=username --masterpassword=string
43          --snapshot=snapshot          --snapshot=snapshot
44            [--masterserver=master_number]
45  ";  ";
46      exit ((scalar(@ARGV) < 2)? 1:0);      exit ((scalar(@ARGV) < 2)? 1:0);
47  }  }
# Line 54  if ($debug) { Line 57  if ($debug) {
57    
58  my $master = $ARGV[0] || "master";  my $master = $ARGV[0] || "master";
59  my $slave = $ARGV[1] || "slave";  my $slave = $ARGV[1] || "slave";
60    my $tables = $#ARGV < 2 ? undef : { map {($_, undef)} @ARGV[2..$#ARGV] };
61    
62  # first, let's check if a instance is alrealy running  # first, let's check if a instance is alrealy running
63    
# Line 63  $str .= ':'.$slave; Line 67  $str .= ':'.$slave;
67  $str .= '@'.$slavehost if (defined($slavehost));  $str .= '@'.$slavehost if (defined($slavehost));
68  my $fname = "/tmp/.lock_rserv-$str";  my $fname = "/tmp/.lock_rserv-$str";
69  if (-e $fname) {  if (-e $fname) {
70      print STDERR "rServ is already running for $str. Remove $fname to override this.\n";          open(PID,$fname) || die "can't open pid file '$fname'";
71      exit(1);          my $pid = <PID>; chomp($pid);
72            close(PID);
73            open(PS,"ps ax |") || die "can't start ps to check for running rServ with pid $pid\n";
74            my $is_running = 0;
75            while(<PS>) {
76                    chomp;
77                    $is_running = 1 if (/^\s*$pid\s/);
78            }
79            close(PS);
80            if ($is_running) {
81                    print STDERR "rServ [$pid] is already running for $str. Remove $fname to override this.\n";
82                    exit(1);
83            } else {
84                    print STDERR "found stale pid file, but no running rServ [$pid], overriding.\n";
85            }
86  }  }
87  open ARQ, ">$fname" || die "Cannot open $fname: $!\n";  open ARQ, ">$fname" || die "Cannot open $fname: $!\n";
88  print ARQ "$$\n";  print ARQ "$$\n";
89  close ARQ;  close ARQ;
90    
91    $SIG{__DIE__} = \&mydie;
92    sub mydie {
93            unlink $fname;
94            print @_;
95            exit 1;
96    }
97    
98    
99  my $minfo = "dbname=$master";  my $minfo = "dbname=$master";
100  $minfo = "$minfo host=$masterhost" if (defined($masterhost));  $minfo = "$minfo host=$masterhost" if (defined($masterhost));
101  $minfo = "$minfo port=$masterport" if (defined($masterport));  $minfo = "$minfo port=$masterport" if (defined($masterport));
# Line 98  if ($sconn->status != Pg::PGRES_CONNECTI Line 124  if ($sconn->status != Pg::PGRES_CONNECTI
124      exit 1;      exit 1;
125  }  }
126    
127  my $slaveId = GetSlaveId($mconn, $slave, defined($slavehost) ? $slavehost : hostname);  $slavehost = hostname if (! $slavehost);
128    my $slaveId = GetSlaveId($mconn, $slave, $slavehost);
129    
130    die "\n>>>>>>>>>>>>> ERROR: Can't GetSlaveID for $sinfo\n" if (! $slaveId);
131    
132  if ($slaveId < 0) {  if ($slaveId < 0) {
133      unlink $fname;      unlink $fname;
134      die "\n>>>>>>>>>>>>> ERROR\n";      die "\n>>>>>>>>>>>>> ERROR: GetSlaveID returned $slaveId < 0\n";
135  }  }
136  SyncSync($mconn, $sconn);  SyncSync($mconn, $sconn);
137    
138  my $outf = new IO::File;  my $outf = new IO::File;
139  open $outf, ">$snapshot";  open $outf, ">$snapshot";
140  print "\n>>>>>>>>>>>>> Prepare Snapshot\n\n" if ($verbose);  print "\n>>>>>>>>>>>>> Prepare Snapshot\n\n" if ($verbose);
141  my $res = PrepareSnapshot($mconn, $sconn, $outf, $slaveId);  my $res = PrepareSnapshot($mconn, $sconn, $outf, $mserver, $slaveId, $tables);
142  close $outf;  close $outf;
143  if ($res < 0) {  if ($res < 0) {
144      unlink $fname;      unlink $fname;
# Line 125  if ($res == 0) Line 155  if ($res == 0)
155  my $inpf = new IO::File;  my $inpf = new IO::File;
156  open $inpf, "<$snapshot";  open $inpf, "<$snapshot";
157  print "\n>>>>>>>>>>>>> Apply Snapshot\n\n" if ($verbose);  print "\n>>>>>>>>>>>>> Apply Snapshot\n\n" if ($verbose);
158  $res = ApplySnapshot($sconn, $inpf);  $res = ApplySnapshot($sconn, $inpf, $tables);
159  close $inpf;  close $inpf;
160  if ($res < 0) {  if ($res < 0) {
161      unlink $fname;      unlink $fname;
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