| 1 |
#!/usr/bin/perl -w |
| 2 |
# SlaveInit |
| 3 |
# Vadim Mikheev, (c) 2000, PostgreSQL Inc. |
| 4 |
|
| 5 |
eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' |
| 6 |
& eval 'exec perl -S $0 $argv:q' |
| 7 |
if 0; |
| 8 |
|
| 9 |
use strict; |
| 10 |
use Pg; |
| 11 |
use Getopt::Long; |
| 12 |
|
| 13 |
$| = 1; |
| 14 |
|
| 15 |
my ($debug,$verbose,$quiet) = (0,0,0); |
| 16 |
my ($help,$masterhost,$masterport,$masteruser,$masterpassword, |
| 17 |
$slavehost,$slaveport,$slaveuser,$slavepassword); |
| 18 |
|
| 19 |
my $result = GetOptions( |
| 20 |
"debug!" => \$debug, "verbose!" => \$verbose, |
| 21 |
"quiet!" => \$quiet, "help" => \$help, |
| 22 |
"masterhost=s" => \$masterhost, "masterport=i" => \$masterport, |
| 23 |
"masteruser=s" => \$masteruser, "masterpassword=s" => \$masterpassword, |
| 24 |
"slavehost=s" => \$slavehost, "slaveport=i" => \$slaveport, |
| 25 |
"slaveuser=s" => \$slaveuser, "slavepassword=s" => \$slavepassword, |
| 26 |
); |
| 27 |
|
| 28 |
if (defined($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"; |
| 40 |
my $slave = $ARGV[1] || "slave"; |
| 41 |
|
| 42 |
my $minfo = MkInfo($master,$masterhost,$masterport,$masteruser,$masterpassword); |
| 43 |
my $sinfo = MkInfo($slave,$slavehost,$slaveport,$slaveuser,$slavepassword); |
| 44 |
|
| 45 |
sub RollbackAndQuit { |
| 46 |
my $conn = shift @_; |
| 47 |
|
| 48 |
print STDERR $conn->errorMessage; |
| 49 |
$conn->exec("ROLLBACK"); |
| 50 |
exit (-1); |
| 51 |
} |
| 52 |
|
| 53 |
# First, lets add the needed information in the slave database |
| 54 |
|
| 55 |
print("Connecting to $sinfo\n") if ($debug || $verbose); |
| 56 |
my $conn = Pg::connectdb($sinfo); |
| 57 |
if ($conn->status != PGRES_CONNECTION_OK) { |
| 58 |
print STDERR "Failed opening $sinfo\n"; |
| 59 |
exit 1; |
| 60 |
} |
| 61 |
|
| 62 |
$result = $conn->exec("BEGIN"); |
| 63 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 64 |
|
| 65 |
$result = $conn->exec("set transaction isolation level serializable"); |
| 66 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 67 |
|
| 68 |
$result = $conn->exec("create table _RSERV_SLAVE_TABLES_" . |
| 69 |
" (tname name not null, cname name not null, reloid oid not null, key int4 not null)"); |
| 70 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 71 |
|
| 72 |
$result = $conn->exec("create table _RSERV_SLAVE_SYNC_" . |
| 73 |
" (syncid int4 not null, synctime timestamp)"); |
| 74 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 75 |
|
| 76 |
|
| 77 |
# next, let's tell the master that the slave is set up. |
| 78 |
|
| 79 |
print("Connecting to $minfo\n") if ($debug || $verbose); |
| 80 |
my $mconn = Pg::connectdb($minfo); |
| 81 |
if ($mconn->status != PGRES_CONNECTION_OK) { |
| 82 |
print STDERR "Failed opening $minfo\n"; |
| 83 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 84 |
# exit 1; |
| 85 |
} |
| 86 |
|
| 87 |
$slavehost="localhost" if (! $slavehost); |
| 88 |
|
| 89 |
$result = $mconn->exec("INSERT INTO _RSERV_SERVERS_ (host,dbase) VALUES ('$slavehost','$slave')"); |
| 90 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
| 91 |
print STDERR $mconn->errorMessage; |
| 92 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 93 |
# exit (-1); |
| 94 |
} |
| 95 |
|
| 96 |
|
| 97 |
# then commit the slave transaction |
| 98 |
|
| 99 |
$result = $conn->exec("COMMIT"); |
| 100 |
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
| 101 |
|
| 102 |
|
| 103 |
|
| 104 |
exit (0); |
Parent Directory
| 
Revision Log