/[rserv]/bin/SlaveInit
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revision 1.3 by dpavlin, Tue Aug 5 09:52:36 2003 UTC revision 1.8 by dpavlin, Sun Nov 2 10:21:45 2003 UTC
# Line 1  Line 1 
1  #!/usr/bin/perl  #!/usr/bin/perl -w
2  # SlaveInit  # SlaveInit
3  # Vadim Mikheev, (c) 2000, PostgreSQL Inc.  # Vadim Mikheev, (c) 2000, PostgreSQL Inc.
4    
# Line 6  eval '(exit $?0)' && eval 'exec perl -S Line 6  eval '(exit $?0)' && eval 'exec perl -S
6      & eval 'exec perl -S $0 $argv:q'      & eval 'exec perl -S $0 $argv:q'
7      if 0;      if 0;
8    
9    use strict;
10  use Pg;  use Pg;
11  use Getopt::Long;  use Getopt::Long;
 use Sys::Hostname;  
12    
13  $| = 1;  $| = 1;
14    
15  $result = GetOptions("debug!", "verbose!", "quiet!", "help",  my ($debug,$verbose,$quiet) = (0,0,0);
16                       "masterhost=s", "masteruser=s", "masterpassword=s",  my ($help,$masterhost,$masterport,$masteruser,$masterpassword,
17                       "slavehost=s", "slaveuser=s", "slavepassword=s");          $slavehost,$slaveport,$slaveuser,$slavepassword);
18    
19  my $debug = $opt_debug || 0;  my $result = GetOptions(
20  my $verbose = $opt_verbose || 0;          "debug!" => \$debug, "verbose!" => \$verbose,
21  my $quiet = $opt_quiet || 0;          "quiet!" => \$quiet, "help" => \$help,
22            "masterhost=s" => \$masterhost, "masterport=i" => \$masterport,
23  if (defined($opt_help) || (scalar(@ARGV) < 2)) {          "masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword,
24      print "Usage: $0 --masterhost=name --masteruser=name --masterpassword=string --slavehost=name --slaveuser=name --slavepassword=string masterdb slavedb\n";          "slavehost=s" => \$slavehost, "slaveport=i" => \$slaveport,
25      exit ((scalar(@ARGV) < 1)? 1:0);          "slaveuser=s" => \$slaveuser, "slavepassword=s" => \$slavepassword,
26            );
27    
28    if (defined($help) || (scalar(@ARGV) < 2)) {
29        print "Usage: $0 [options] masterdb slavedb
30    Options:
31            --masterhost=hostname --masterport=port
32            --masteruser=username --masterpassword=string
33            --slavehost=hostname --slaveport=port
34            --slaveuser=username --slavepassword=string
35    ";
36        exit ((scalar(@ARGV) < 2)? 1:0);
37  }  }
38    
39  my $master = $ARGV[0] || "master";  my $master = $ARGV[0] || "master";
40  my $slave = $ARGV[1] || "slave";  my $slave = $ARGV[1] || "slave";
41    
42  my $sinfo = "dbname=$slave";  my $minfo = MkInfo($master,$masterhost,$masterport,$masteruser,$masterpassword);
43  $sinfo = "$sinfo host=$opt_slavehost" if (defined($opt_slavehost));  my $sinfo = MkInfo($slave,$slavehost,$slaveport,$slaveuser,$slavepassword);
 $sinfo = "$sinfo user=$opt_slaveuser" if (defined($opt_slaveuser));  
 $sinfo = "$sinfo password=$opt_slavepassword" if (defined($opt_slavepassword));  
   
 my $minfo = "dbname=$master";  
 $minfo = "$minfo host=$opt_masterhost" if (defined($opt_masterhost));  
 $minfo = "$minfo user=$opt_masteruser" if (defined($opt_masteruser));  
 $minfo = "$minfo password=$opt_masterpassword" if (defined($opt_masterpassword));  
44    
45  sub RollbackAndQuit {  sub RollbackAndQuit {
46      my $conn = shift @_;      my $conn = shift @_;
# Line 55  if ($conn->status != PGRES_CONNECTION_OK Line 59  if ($conn->status != PGRES_CONNECTION_OK
59      exit 1;      exit 1;
60  }  }
61    
62  my $result = $conn->exec("BEGIN");  $result = $conn->exec("BEGIN");
63  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
64    
65  $result = $conn->exec("set transaction isolation level serializable");  $result = $conn->exec("set transaction isolation level serializable");
# Line 66  $result = $conn->exec("create table _RSE Line 70  $result = $conn->exec("create table _RSE
70  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
71    
72  $result = $conn->exec("create table _RSERV_SLAVE_SYNC_" .  $result = $conn->exec("create table _RSERV_SLAVE_SYNC_" .
73                        " (syncid int4, synctime timestamp)");                        " (syncid int4 not null, synctime timestamp)");
74  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);  RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
75    
76    
77  # next, let's tell the master that the slave is set up.  # next, let's tell the master that the slave is set up.
78    
79  print("Connecting to $minfo\n") if ($debug || $verbose);  print("Connecting to $minfo\n") if ($debug || $verbose);
80  $mconn = Pg::connectdb($minfo);  my $mconn = Pg::connectdb($minfo);
81  if ($mconn->status != PGRES_CONNECTION_OK) {  if ($mconn->status != PGRES_CONNECTION_OK) {
82      print STDERR "Failed opening $minfo\n";      print STDERR "Failed opening $minfo\n";
83      RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);      RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
84  #    exit 1;  #    exit 1;
85  }  }
86    
87  $host = defined($opt_slavehost) ? $opt_slavehost : hostname;  $slavehost="localhost" if (! $slavehost);
88    
89  $result = $mconn->exec("INSERT INTO _RSERV_SERVERS_ (host,dbase) VALUES ('$host','$slave')");  $result = $mconn->exec("INSERT INTO _RSERV_SERVERS_ (host,dbase) VALUES ('$slavehost','$slave')");
90  if ($result->resultStatus ne PGRES_COMMAND_OK) {  if ($result->resultStatus ne PGRES_COMMAND_OK) {
91      print STDERR $mconn->errorMessage;      print STDERR $mconn->errorMessage;
92      RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);      RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK);
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