1 |
dpavlin |
1.1 |
# -*- perl -*- |
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# RServ.pm |
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# Vadim Mikheev, (c) 2000, PostgreSQL Inc. |
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package RServ; |
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require Exporter; |
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@ISA = qw(Exporter); |
9 |
dpavlin |
1.11 |
@EXPORT = qw(PrepareSnapshot ApplySnapshot GetSyncID SyncSyncID CleanLog GetServerId |
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Rollback RollbackAndQuit Connect Exec Exec2 |
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$debug $quiet $verbose |
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); |
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dpavlin |
1.1 |
@EXPORT_OK = qw(); |
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dpavlin |
1.3 |
use strict; |
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dpavlin |
1.1 |
use Pg; |
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dpavlin |
1.11 |
my $debug = 0; |
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my $quiet = 1; |
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my $verbose = 0; |
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dpavlin |
1.1 |
|
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my %Mtables = (); |
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my %Stables = (); |
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|
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dpavlin |
1.11 |
sub GetServerId |
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dpavlin |
1.1 |
{ |
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dpavlin |
1.11 |
my ($mconn, $DB, $Host) = @_; # (@_[0], @_[1]. @_[2]); |
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print STDERR "GetServerId: host $Host, database $DB\n" if ($debug); |
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dpavlin |
1.1 |
|
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dpavlin |
1.6 |
my $result = $mconn->exec("SELECT server FROM _RSERV_SERVERS_ WHERE". |
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dpavlin |
1.11 |
" host='$Host' AND dbase='$DB'"); |
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dpavlin |
1.3 |
|
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dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
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{ |
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dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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dpavlin |
1.2 |
return(-1); |
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} |
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|
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dpavlin |
1.3 |
if ($result->cmdTuples && $result->cmdTuples > 1) |
40 |
dpavlin |
1.2 |
{ |
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dpavlin |
1.11 |
printf STDERR "Duplicate host definitions.\n" unless ($quiet); |
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dpavlin |
1.2 |
return(-2); |
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} |
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my @row = $result->fetchrow; |
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dpavlin |
1.10 |
|
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dpavlin |
1.11 |
print "GetServerId($DB,$Host) == $row[0]\n" if ($debug); |
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dpavlin |
1.10 |
|
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dpavlin |
1.2 |
return $row[0]; |
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} |
51 |
dpavlin |
1.1 |
|
52 |
dpavlin |
1.2 |
sub PrepareSnapshot |
53 |
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{ |
54 |
dpavlin |
1.9 |
my ($mconn, $sconn, $outf, $mserver, $sserver, $onlytables) = @_; |
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if ($mserver == $sserver) { |
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dpavlin |
1.10 |
print STDERR "master and slave numbers are same [$mserver] !\n"; |
58 |
dpavlin |
1.9 |
return(-1); |
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} |
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print "PrepareSnapshot master: $mserver slave: $sserver\n" if ($debug); |
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dpavlin |
1.1 |
|
63 |
dpavlin |
1.2 |
# first, we must know for wich tables the slave subscribed |
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my $result = $sconn->exec("SELECT tname FROM _RSERV_SLAVE_TABLES_"); |
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if ($result->resultStatus ne PGRES_TUPLES_OK) |
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{ |
67 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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dpavlin |
1.2 |
return(-1); |
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} |
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my @row; |
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while (@row = $result->fetchrow) { |
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$Stables{$row[0]} = 1; |
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} |
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|
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dpavlin |
1.6 |
$result = $mconn->exec("BEGIN"); |
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dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
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{ |
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dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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$mconn->exec("ROLLBACK"); |
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dpavlin |
1.2 |
return(-1); |
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} |
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dpavlin |
1.6 |
$result = $mconn->exec("set transaction isolation level serializable"); |
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dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
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{ |
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dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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$mconn->exec("ROLLBACK"); |
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dpavlin |
1.2 |
return(-1); |
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} |
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# MAP oid --> tabname, keyname, key_type |
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dpavlin |
1.6 |
$result = $mconn->exec("select pgc.oid, pgc.relname, pga.attname, pgt.typname" . |
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dpavlin |
1.2 |
" from _RSERV_TABLES_ rt, pg_class pgc, pg_attribute pga" . |
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", pg_type pgt". |
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" where pgc.oid = rt.reloid AND pga.attrelid = rt.reloid" . |
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" AND pga.attnum = rt.key AND pga.atttypid=pgt.oid"); |
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if ($result->resultStatus ne PGRES_TUPLES_OK) |
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{ |
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dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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$mconn->exec("ROLLBACK"); |
101 |
dpavlin |
1.2 |
return(-1); |
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} |
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while (@row = $result->fetchrow) |
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{ |
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dpavlin |
1.1 |
# printf "$row[0], $row[1], $row[2]\n"; |
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dpavlin |
1.5 |
if (ref($onlytables) eq 'HASH') { |
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next unless (exists $onlytables->{$row[1]}); |
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$onlytables->{$row[1]} = $row[0] unless ($onlytables->{$row[1]}); |
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} |
111 |
dpavlin |
1.2 |
push @{$Mtables{$row[0]}}, $row[1], $row[2], $row[3]; |
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} |
113 |
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# Read last succeeded sync |
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dpavlin |
1.3 |
my $sql = "select syncid, synctime, minid, maxid, active from _RSERV_SYNC_" . |
116 |
dpavlin |
1.8 |
" where server = $sserver AND syncid = (select max(syncid) from" . |
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" _RSERV_SYNC_ where server = $sserver AND status > 0)"; |
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dpavlin |
1.2 |
|
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printf "$sql\n" if $debug; |
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121 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
122 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
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{ |
124 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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$mconn->exec("ROLLBACK"); |
126 |
dpavlin |
1.2 |
return(-1); |
127 |
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} |
128 |
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129 |
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my @lastsync = $result->fetchrow; |
130 |
dpavlin |
1.9 |
|
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# exclude data which originated from master server |
132 |
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my $sel_server = " and l.server = $mserver "; |
133 |
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134 |
dpavlin |
1.2 |
my $sinfo = ""; |
135 |
dpavlin |
1.4 |
if (@lastsync && $lastsync[3] ne '') # sync info |
136 |
dpavlin |
1.2 |
{ |
137 |
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$sinfo = "and (l.logid >= $lastsync[3]"; |
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$sinfo .= " or l.logid in ($lastsync[4])" if $lastsync[4] ne ''; |
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$sinfo .= ")"; |
140 |
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} |
141 |
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142 |
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my $havedeal = 0; |
143 |
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144 |
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# DELETED rows |
145 |
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$sql = "select l.reloid, l.key from _RSERV_LOG_ l" . |
146 |
dpavlin |
1.9 |
" where l.delete = 1 $sinfo $sel_server order by l.reloid"; |
147 |
dpavlin |
1.2 |
|
148 |
dpavlin |
1.9 |
printf "DELETED: $sql\n" if $debug; |
149 |
dpavlin |
1.2 |
|
150 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
151 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
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{ |
153 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
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$mconn->exec("ROLLBACK"); |
155 |
dpavlin |
1.2 |
return(-1); |
156 |
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} |
157 |
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158 |
dpavlin |
1.7 |
my $lastoid = -1; |
159 |
dpavlin |
1.2 |
while (@row = $result->fetchrow) |
160 |
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{ |
161 |
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next unless exists $Mtables{$row[0]}; |
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next unless exists $Stables{$Mtables{$row[0]}[0]}; |
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164 |
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if ($lastoid != $row[0]) |
165 |
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{ |
166 |
dpavlin |
1.7 |
if ($lastoid == -1) |
167 |
dpavlin |
1.2 |
{ |
168 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
169 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
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$havedeal = 1; |
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} |
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else |
173 |
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{ |
174 |
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printf $outf "\\.\n"; |
175 |
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} |
176 |
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printf $outf "-- DELETE $Mtables{$row[0]}[0]\n"; |
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$lastoid = $row[0]; |
178 |
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} |
179 |
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if (! defined $row[1]) |
180 |
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{ |
181 |
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print STDERR "NULL key\n" unless ($quiet); |
182 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
183 |
dpavlin |
1.2 |
return(-2); |
184 |
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} |
185 |
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printf $outf "%s\n", OutputValue($row[1]); |
186 |
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} |
187 |
dpavlin |
1.7 |
printf $outf "\\.\n" if ($lastoid != -1); |
188 |
dpavlin |
1.2 |
|
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# UPDATED rows |
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my ($taboid, $tabname, $tabkey); |
192 |
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foreach $taboid (keys %Mtables) |
193 |
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{ |
194 |
dpavlin |
1.3 |
my ($tabname, $tabkey, $keytype) = @{$Mtables{$taboid}}; |
195 |
dpavlin |
1.2 |
next unless exists $Stables{$tabname}; |
196 |
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|
197 |
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my $oidkey = ($tabkey eq 'oid') ? "_$tabname.oid," : ''; |
198 |
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|
199 |
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$sql = sprintf "SELECT $oidkey \"_$tabname\".* FROM \"$tabname\" ". |
200 |
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"\"_$tabname\", _RSERV_LOG_ l WHERE l.reloid = $taboid AND l.update = 1". |
201 |
dpavlin |
1.9 |
" $sinfo AND \"_$tabname\".\"${tabkey}\"=l.key::${keytype}". |
202 |
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$sel_server; |
203 |
dpavlin |
1.2 |
|
204 |
dpavlin |
1.9 |
printf "UPDATED: $sql\n" if $debug; |
205 |
dpavlin |
1.2 |
|
206 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
207 |
dpavlin |
1.1 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
208 |
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{ |
209 |
dpavlin |
1.2 |
printf $outf "-- ERROR\n" if $havedeal; |
210 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
211 |
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$mconn->exec("ROLLBACK"); |
212 |
dpavlin |
1.2 |
return(-1); |
213 |
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} |
214 |
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next if $result->ntuples <= 0; |
215 |
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if (! $havedeal) |
216 |
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{ |
217 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
218 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
219 |
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$havedeal = 1; |
220 |
dpavlin |
1.1 |
} |
221 |
dpavlin |
1.2 |
printf $outf "-- UPDATE $tabname\n"; |
222 |
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printf "-- UPDATE $tabname\n" if $debug; |
223 |
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while (@row = $result->fetchrow) |
224 |
dpavlin |
1.1 |
{ |
225 |
dpavlin |
1.3 |
for (my $i = 0; $i <= $#row; $i++) |
226 |
dpavlin |
1.2 |
{ |
227 |
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printf $outf " " if $i; |
228 |
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printf " " if $i && $debug; |
229 |
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printf $outf "%s", OutputValue($row[$i]); |
230 |
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printf "%s", OutputValue($row[$i]) if $debug;; |
231 |
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} |
232 |
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printf $outf "\n"; |
233 |
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printf "\n" if $debug; |
234 |
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} |
235 |
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printf $outf "\\.\n"; |
236 |
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printf "\\.\n" if $debug;; |
237 |
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} |
238 |
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239 |
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# INSERTED rows |
240 |
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|
241 |
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foreach $taboid (keys %Mtables) |
242 |
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{ |
243 |
dpavlin |
1.3 |
my ($tabname, $tabkey, $keytype) = @{$Mtables{$taboid}}; |
244 |
dpavlin |
1.2 |
next unless exists $Stables{$tabname}; |
245 |
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|
246 |
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my $oidkey = ($tabkey eq 'oid') ? "_$tabname.oid," : ''; |
247 |
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248 |
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$sql = sprintf "SELECT $oidkey \"_$tabname\".* FROM \"$tabname\" ". |
249 |
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"\"_$tabname\", _RSERV_LOG_ l WHERE l.reloid = $taboid AND l.insert = 1". |
250 |
dpavlin |
1.9 |
" $sinfo AND \"_$tabname\".\"${tabkey}\"=l.key::${keytype}". |
251 |
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$sel_server; |
252 |
dpavlin |
1.2 |
|
253 |
dpavlin |
1.9 |
printf "INSERTED: $sql\n" if $debug; |
254 |
dpavlin |
1.2 |
|
255 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
256 |
dpavlin |
1.1 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
257 |
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{ |
258 |
dpavlin |
1.2 |
printf $outf "-- ERROR\n" if $havedeal; |
259 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
260 |
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$mconn->exec("ROLLBACK"); |
261 |
dpavlin |
1.2 |
return(-1); |
262 |
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} |
263 |
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next if $result->ntuples <= 0; |
264 |
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if (! $havedeal) |
265 |
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{ |
266 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
267 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
268 |
|
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$havedeal = 1; |
269 |
dpavlin |
1.1 |
} |
270 |
dpavlin |
1.2 |
printf $outf "-- INSERT $tabname\n"; |
271 |
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printf "-- INSERT $tabname\n" if $debug; |
272 |
dpavlin |
1.1 |
while (@row = $result->fetchrow) |
273 |
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{ |
274 |
dpavlin |
1.3 |
for (my $i = 0; $i <= $#row; $i++) |
275 |
dpavlin |
1.2 |
{ |
276 |
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printf $outf " " if $i; |
277 |
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printf " " if $i && $debug; |
278 |
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printf $outf "%s", OutputValue($row[$i]); |
279 |
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printf "%s", OutputValue($row[$i]) if $debug;; |
280 |
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} |
281 |
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printf $outf "\n"; |
282 |
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printf "\n" if $debug; |
283 |
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} |
284 |
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printf $outf "\\.\n"; |
285 |
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printf "\\.\n" if $debug;; |
286 |
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} |
287 |
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|
288 |
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|
289 |
|
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unless ($havedeal) |
290 |
|
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{ |
291 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
292 |
dpavlin |
1.2 |
return(0); |
293 |
|
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} |
294 |
|
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|
295 |
|
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# Remember this snapshot info |
296 |
dpavlin |
1.8 |
$result = $mconn->exec("select _rserv_sync_($sserver)"); |
297 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
298 |
|
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{ |
299 |
|
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printf $outf "-- ERROR\n"; |
300 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
301 |
|
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$mconn->exec("ROLLBACK"); |
302 |
dpavlin |
1.2 |
return(-1); |
303 |
|
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} |
304 |
|
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|
305 |
dpavlin |
1.6 |
$result = $mconn->exec("COMMIT"); |
306 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
307 |
|
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{ |
308 |
|
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printf $outf "-- ERROR\n"; |
309 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
310 |
|
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$mconn->exec("ROLLBACK"); |
311 |
dpavlin |
1.2 |
return(-1); |
312 |
|
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} |
313 |
|
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printf $outf "-- OK\n"; |
314 |
|
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printf "-- OK\n" if $debug; |
315 |
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|
316 |
|
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return(1); |
317 |
|
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|
318 |
dpavlin |
1.1 |
} |
319 |
|
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|
320 |
|
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sub OutputValue |
321 |
|
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{ |
322 |
|
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my ($val) = @_; # @_[0]; |
323 |
|
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|
324 |
|
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return("\\N") unless defined $val; |
325 |
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|
326 |
|
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$val =~ s/\\/\\\\/g; |
327 |
|
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$val =~ s/ /\\011/g; |
328 |
|
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$val =~ s/\n/\\012/g; |
329 |
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$val =~ s/\'/\\047/g; |
330 |
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|
331 |
|
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return($val); |
332 |
|
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} |
333 |
|
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|
334 |
|
|
# Get syncid for new snapshot |
335 |
|
|
sub GetSYNCID |
336 |
|
|
{ |
337 |
dpavlin |
1.2 |
my ($conn, $outf) = @_; # (@_[0], @_[1]); |
338 |
|
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|
339 |
|
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my $result = $conn->exec("select nextval('_rserv_sync_seq_')"); |
340 |
|
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if ($result->resultStatus ne PGRES_TUPLES_OK) |
341 |
|
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{ |
342 |
|
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print STDERR $conn->errorMessage unless ($quiet); |
343 |
|
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$conn->exec("ROLLBACK"); |
344 |
|
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return(-1); |
345 |
|
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} |
346 |
|
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|
347 |
|
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my @row = $result->fetchrow; |
348 |
|
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|
349 |
|
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printf $outf "-- SYNCID $row[0]\n"; |
350 |
|
|
printf "-- SYNCID $row[0]\n" if $debug; |
351 |
|
|
return($row[0]); |
352 |
dpavlin |
1.1 |
} |
353 |
|
|
|
354 |
|
|
|
355 |
|
|
sub CleanLog |
356 |
|
|
{ |
357 |
dpavlin |
1.5 |
my ($conn, $howold, $onlytables) = @_; # (@_[0], @_[1]); |
358 |
dpavlin |
1.2 |
|
359 |
|
|
my $result = $conn->exec("BEGIN"); |
360 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
361 |
|
|
{ |
362 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
363 |
|
|
$conn->exec("ROLLBACK"); |
364 |
|
|
return(-1); |
365 |
|
|
} |
366 |
|
|
|
367 |
|
|
my $sql = "select rs.maxid, rs.active from _RSERV_SYNC_ rs" . |
368 |
|
|
" where rs.syncid = (select max(rs2.syncid) from _RSERV_SYNC_ rs2" . |
369 |
|
|
" where rs2.server = rs.server AND rs2.status > 0) order by rs.maxid"; |
370 |
|
|
|
371 |
|
|
printf "$sql\n" if $debug; |
372 |
|
|
|
373 |
|
|
$result = $conn->exec($sql); |
374 |
|
|
if ($result->resultStatus ne PGRES_TUPLES_OK) |
375 |
|
|
{ |
376 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
377 |
|
|
return(-1); |
378 |
|
|
} |
379 |
|
|
my $maxid = ''; |
380 |
|
|
my %active = (); |
381 |
|
|
while (my @row = $result->fetchrow) |
382 |
|
|
{ |
383 |
|
|
$maxid = $row[0] if $maxid eq ''; |
384 |
|
|
last if $row[0] > $maxid; |
385 |
|
|
my @ids = split(/[ ]+,[ ]+/, $row[1]); |
386 |
dpavlin |
1.3 |
foreach my $aid (@ids) |
387 |
dpavlin |
1.2 |
{ |
388 |
|
|
$active{$aid} = 1 unless exists $active{$aid}; |
389 |
|
|
} |
390 |
|
|
} |
391 |
|
|
if ($maxid eq '') |
392 |
|
|
{ |
393 |
|
|
print STDERR "No Sync IDs\n" unless ($quiet); |
394 |
|
|
return(0); |
395 |
|
|
} |
396 |
|
|
my $alist = join(',', keys %active); |
397 |
|
|
my $sinfo = "logid < $maxid"; |
398 |
|
|
$sinfo .= " AND logid not in ($alist)" if $alist ne ''; |
399 |
dpavlin |
1.5 |
#if (ref($onlytables) eq 'HASH') { |
400 |
|
|
# foreach my $onlytable (keys %{$onlytables}) { |
401 |
|
|
# $sinfo |
402 |
|
|
# } |
403 |
|
|
#} |
404 |
dpavlin |
1.2 |
$sql = "delete from _RSERV_LOG_ where " . |
405 |
|
|
"logtime < now() - '$howold second'::interval AND $sinfo"; |
406 |
|
|
|
407 |
|
|
printf "$sql\n" if $debug; |
408 |
|
|
|
409 |
|
|
$result = $conn->exec($sql); |
410 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
411 |
|
|
{ |
412 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
413 |
|
|
$conn->exec("ROLLBACK"); |
414 |
|
|
return(-1); |
415 |
|
|
} |
416 |
|
|
$maxid = $result->cmdTuples; |
417 |
|
|
|
418 |
|
|
$result = $conn->exec("COMMIT"); |
419 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
420 |
|
|
{ |
421 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
422 |
|
|
$conn->exec("ROLLBACK"); |
423 |
|
|
return(-1); |
424 |
|
|
} |
425 |
|
|
|
426 |
|
|
return($maxid); |
427 |
|
|
} |
428 |
dpavlin |
1.1 |
|
429 |
dpavlin |
1.2 |
sub ApplySnapshot |
430 |
|
|
{ |
431 |
dpavlin |
1.6 |
my ($sconn, $inpf, $onlytables) = @_; # (@_[0], @_[1]); |
432 |
dpavlin |
1.2 |
|
433 |
dpavlin |
1.6 |
my $result = $sconn->exec("BEGIN"); |
434 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
435 |
|
|
{ |
436 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
437 |
|
|
$sconn->exec("ROLLBACK"); |
438 |
dpavlin |
1.2 |
return(-1); |
439 |
|
|
} |
440 |
|
|
|
441 |
dpavlin |
1.6 |
$result = $sconn->exec("SET CONSTRAINTS ALL DEFERRED"); |
442 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
443 |
|
|
{ |
444 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
445 |
|
|
$sconn->exec("ROLLBACK"); |
446 |
dpavlin |
1.2 |
return(-1); |
447 |
|
|
} |
448 |
|
|
|
449 |
|
|
# MAP name --> oid, keyname, keynum |
450 |
|
|
my $sql = "select pgc.oid, pgc.relname, pga.attname, rt.key" . |
451 |
|
|
" from _RSERV_SLAVE_TABLES_ rt, pg_class pgc, pg_attribute pga" . |
452 |
|
|
" where pgc.oid = rt.reloid AND pga.attrelid = rt.reloid" . |
453 |
|
|
" AND pga.attnum = rt.key"; |
454 |
|
|
|
455 |
dpavlin |
1.6 |
$result = $sconn->exec($sql); |
456 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
457 |
|
|
{ |
458 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
459 |
|
|
$sconn->exec("ROLLBACK"); |
460 |
dpavlin |
1.2 |
return(-1); |
461 |
|
|
} |
462 |
|
|
%Stables = (); |
463 |
dpavlin |
1.3 |
while (my @row = $result->fetchrow) |
464 |
dpavlin |
1.2 |
{ |
465 |
|
|
# printf "\t%s\t%s\t%s\t\n", $row[1], $row[0], $row[2], $row[3]; |
466 |
dpavlin |
1.5 |
if (ref($onlytables) eq 'HASH') { |
467 |
|
|
next unless (exists $onlytables->{$row[1]}); |
468 |
|
|
$onlytables->{$row[1]} = $row[0] unless ($onlytables->{$row[1]}); |
469 |
|
|
} |
470 |
dpavlin |
1.2 |
push @{$Stables{$row[1]}}, $row[0], $row[2], $row[3]; |
471 |
|
|
} |
472 |
|
|
|
473 |
|
|
my $ok = 0; |
474 |
dpavlin |
1.9 |
my $syncid = -1; |
475 |
dpavlin |
1.2 |
while(<$inpf>) |
476 |
|
|
{ |
477 |
|
|
$_ =~ s/\n//; |
478 |
|
|
my ($cmt, $cmd, $prm) = split (/[ ]+/, $_, 3); |
479 |
dpavlin |
1.11 |
die "FATAL: snapshot format unknown or snapshot corrupted!" if (! $cmt); |
480 |
dpavlin |
1.2 |
if ($cmt ne '--') |
481 |
|
|
{ |
482 |
|
|
printf STDERR "Invalid format\n" unless ($quiet); |
483 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
484 |
dpavlin |
1.2 |
return(-2); |
485 |
|
|
} |
486 |
|
|
if ($cmd eq 'DELETE') |
487 |
|
|
{ |
488 |
dpavlin |
1.9 |
if ($syncid == -1) |
489 |
dpavlin |
1.2 |
{ |
490 |
|
|
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
491 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
492 |
dpavlin |
1.2 |
return(-2); |
493 |
|
|
} |
494 |
dpavlin |
1.6 |
$result = DoDelete($sconn, $inpf, $prm); |
495 |
dpavlin |
1.2 |
if ($result) |
496 |
|
|
{ |
497 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
498 |
dpavlin |
1.2 |
return($result); |
499 |
|
|
} |
500 |
|
|
} |
501 |
|
|
elsif ($cmd eq 'INSERT') |
502 |
|
|
{ |
503 |
dpavlin |
1.9 |
if ($syncid == -1) |
504 |
dpavlin |
1.2 |
{ |
505 |
|
|
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
506 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
507 |
dpavlin |
1.2 |
return(-2); |
508 |
|
|
} |
509 |
dpavlin |
1.6 |
$result = DoInsert($sconn, $inpf, $prm); |
510 |
dpavlin |
1.2 |
if ($result) |
511 |
|
|
{ |
512 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
513 |
dpavlin |
1.2 |
return($result); |
514 |
|
|
} |
515 |
|
|
} |
516 |
|
|
elsif ($cmd eq 'UPDATE') |
517 |
|
|
{ |
518 |
dpavlin |
1.9 |
if ($syncid == -1) |
519 |
dpavlin |
1.2 |
{ |
520 |
|
|
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
521 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
522 |
dpavlin |
1.2 |
return(-2); |
523 |
|
|
} |
524 |
dpavlin |
1.6 |
$result = DoUpdate($sconn, $inpf, $prm); |
525 |
dpavlin |
1.2 |
if ($result) |
526 |
|
|
{ |
527 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
528 |
dpavlin |
1.2 |
return($result); |
529 |
|
|
} |
530 |
|
|
} |
531 |
|
|
elsif ($cmd eq 'SYNCID') |
532 |
|
|
{ |
533 |
dpavlin |
1.9 |
if ($syncid != -1) |
534 |
dpavlin |
1.2 |
{ |
535 |
|
|
printf STDERR "Second Sync ID ?!\n" unless ($quiet); |
536 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
537 |
dpavlin |
1.2 |
return(-2); |
538 |
|
|
} |
539 |
|
|
if ($prm !~ /^\d+$/) |
540 |
|
|
{ |
541 |
|
|
printf STDERR "Invalid Sync ID $prm\n" unless ($quiet); |
542 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
543 |
dpavlin |
1.2 |
return(-2); |
544 |
|
|
} |
545 |
|
|
$syncid = $prm; |
546 |
|
|
|
547 |
|
|
printf STDERR "Sync ID $syncid\n" unless ($quiet); |
548 |
|
|
|
549 |
dpavlin |
1.6 |
$result = $sconn->exec("select syncid, synctime from " . |
550 |
dpavlin |
1.2 |
"_RSERV_SLAVE_SYNC_ where syncid = " . |
551 |
|
|
"(select max(syncid) from _RSERV_SLAVE_SYNC_)"); |
552 |
|
|
if ($result->resultStatus ne PGRES_TUPLES_OK) |
553 |
|
|
{ |
554 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
555 |
|
|
$sconn->exec("ROLLBACK"); |
556 |
dpavlin |
1.1 |
return(-1); |
557 |
dpavlin |
1.2 |
} |
558 |
|
|
my @row = $result->fetchrow; |
559 |
|
|
if (! defined $row[0]) |
560 |
|
|
{ |
561 |
dpavlin |
1.6 |
$result = $sconn->exec("insert into _RSERV_SLAVE_SYNC_ ". |
562 |
dpavlin |
1.2 |
"(syncid, synctime) values ($syncid, now())"); |
563 |
|
|
} |
564 |
|
|
elsif ($row[0] >= $prm) |
565 |
|
|
{ |
566 |
|
|
printf STDERR "Sync-ed to ID $row[0] ($row[1])\n" unless ($quiet); |
567 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
568 |
dpavlin |
1.2 |
return(0); |
569 |
|
|
} |
570 |
|
|
else |
571 |
|
|
{ |
572 |
dpavlin |
1.6 |
$result = $sconn->exec("update _RSERV_SLAVE_SYNC_" . |
573 |
dpavlin |
1.2 |
" set syncid = $syncid, synctime = now()"); |
574 |
|
|
} |
575 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
576 |
|
|
{ |
577 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
578 |
|
|
$sconn->exec("ROLLBACK"); |
579 |
dpavlin |
1.1 |
return(-1); |
580 |
dpavlin |
1.2 |
} |
581 |
|
|
} |
582 |
|
|
elsif ($cmd eq 'OK') |
583 |
|
|
{ |
584 |
|
|
$ok = 1; |
585 |
|
|
last; |
586 |
|
|
} |
587 |
|
|
elsif ($cmd eq 'ERROR') |
588 |
|
|
{ |
589 |
|
|
printf STDERR "ERROR signaled\n" unless ($quiet); |
590 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
591 |
dpavlin |
1.2 |
return(-2); |
592 |
|
|
} |
593 |
|
|
else |
594 |
|
|
{ |
595 |
|
|
printf STDERR "Unknown command $cmd\n" unless ($quiet); |
596 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
597 |
dpavlin |
1.2 |
return(-2); |
598 |
|
|
} |
599 |
|
|
} |
600 |
|
|
|
601 |
|
|
if (! $ok) |
602 |
|
|
{ |
603 |
|
|
printf STDERR "No OK flag in input\n" unless ($quiet); |
604 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
605 |
dpavlin |
1.2 |
return(-2); |
606 |
|
|
} |
607 |
|
|
|
608 |
dpavlin |
1.6 |
$result = $sconn->exec("COMMIT"); |
609 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
610 |
|
|
{ |
611 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
612 |
|
|
$sconn->exec("ROLLBACK"); |
613 |
dpavlin |
1.2 |
return(-1); |
614 |
|
|
} |
615 |
|
|
|
616 |
|
|
return(1); |
617 |
dpavlin |
1.1 |
} |
618 |
|
|
|
619 |
|
|
sub DoDelete |
620 |
|
|
{ |
621 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
622 |
dpavlin |
1.2 |
|
623 |
|
|
# only delete tables that the slave wants |
624 |
|
|
if (! defined($Stables{$tabname})) { |
625 |
|
|
print "Not configured to delete rows from table $tabname\n" unless $quiet; |
626 |
|
|
while (<$inpf>) { |
627 |
dpavlin |
1.3 |
my $istring = $_; |
628 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
629 |
|
|
last if ($istring eq '\.'); |
630 |
|
|
} |
631 |
|
|
return(0); |
632 |
|
|
} |
633 |
dpavlin |
1.1 |
|
634 |
dpavlin |
1.2 |
my $ok = 0; |
635 |
|
|
while(<$inpf>) |
636 |
|
|
{ |
637 |
|
|
if ($_ !~ /\n$/) |
638 |
|
|
{ |
639 |
|
|
printf STDERR "Invalid format\n" unless ($quiet); |
640 |
|
|
return(-2); |
641 |
|
|
} |
642 |
|
|
my $key = $_; |
643 |
|
|
$key =~ s/\n//; |
644 |
|
|
if ($key eq '\.') |
645 |
dpavlin |
1.1 |
{ |
646 |
dpavlin |
1.2 |
$ok = 1; |
647 |
|
|
last; |
648 |
dpavlin |
1.1 |
} |
649 |
dpavlin |
1.2 |
|
650 |
|
|
my $sql = "delete from \"$tabname\" where ". |
651 |
|
|
"\"$Stables{$tabname}->[1]\" = '$key'"; |
652 |
|
|
|
653 |
|
|
printf "$sql\n" if $debug; |
654 |
|
|
|
655 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
656 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
657 |
dpavlin |
1.1 |
{ |
658 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
659 |
dpavlin |
1.2 |
return(-1); |
660 |
dpavlin |
1.1 |
} |
661 |
dpavlin |
1.2 |
} |
662 |
|
|
|
663 |
|
|
if (! $ok) |
664 |
|
|
{ |
665 |
|
|
printf STDERR "No end of input in DELETE section\n" unless ($quiet); |
666 |
|
|
return(-2); |
667 |
|
|
} |
668 |
|
|
|
669 |
|
|
return(0); |
670 |
dpavlin |
1.1 |
} |
671 |
|
|
|
672 |
|
|
|
673 |
|
|
sub DoUpdate |
674 |
|
|
{ |
675 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
676 |
dpavlin |
1.1 |
|
677 |
dpavlin |
1.2 |
# only update the tables that the slave wants |
678 |
|
|
if (! defined($Stables{$tabname})) { |
679 |
|
|
print "Not configured to update rows from table $tabname\n" unless $quiet; |
680 |
|
|
while (<$inpf>) { |
681 |
dpavlin |
1.3 |
my $istring = $_; |
682 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
683 |
|
|
last if ($istring eq '\.'); |
684 |
|
|
} |
685 |
|
|
return(0); |
686 |
|
|
} |
687 |
dpavlin |
1.1 |
|
688 |
dpavlin |
1.2 |
my $oidkey = ($Stables{$tabname}->[2] < 0) ? 1 : 0; |
689 |
|
|
|
690 |
|
|
my @CopyBuf = (); |
691 |
|
|
my $CBufLen = 0; |
692 |
|
|
my $CBufMax = 16 * 1024 * 1024; # max size of buf for copy |
693 |
|
|
|
694 |
|
|
my $sql = "select attnum, attname from pg_attribute" . |
695 |
|
|
" where attrelid = $Stables{$tabname}->[0] AND attnum > 0"; |
696 |
|
|
|
697 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
698 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
699 |
|
|
{ |
700 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
701 |
dpavlin |
1.2 |
return(-1); |
702 |
|
|
} |
703 |
|
|
|
704 |
|
|
my @anames = (); |
705 |
dpavlin |
1.3 |
while (my @row = $result->fetchrow) |
706 |
dpavlin |
1.2 |
{ |
707 |
|
|
$anames[$row[0]] = $row[1]; |
708 |
|
|
} |
709 |
|
|
|
710 |
|
|
my $istring; |
711 |
|
|
my $ok = 0; |
712 |
|
|
while(<$inpf>) |
713 |
|
|
{ |
714 |
|
|
if ($_ !~ /\n$/) |
715 |
|
|
{ |
716 |
|
|
printf STDERR "Invalid format\n" unless ($quiet); |
717 |
|
|
return(-2); |
718 |
|
|
} |
719 |
|
|
$istring = $_; |
720 |
|
|
$istring =~ s/\n//; |
721 |
|
|
if ($istring eq '\.') |
722 |
|
|
{ |
723 |
|
|
$ok = 1; |
724 |
|
|
last; |
725 |
|
|
} |
726 |
|
|
my @vals = split(/ /, $istring); |
727 |
|
|
if ($oidkey) |
728 |
|
|
{ |
729 |
|
|
if ($vals[0] !~ /^\d+$/ || $vals[0] <= 0) |
730 |
|
|
{ |
731 |
|
|
printf STDERR "Invalid OID\n" unless ($quiet); |
732 |
|
|
return(-2); |
733 |
|
|
} |
734 |
|
|
$oidkey = $vals[0]; |
735 |
|
|
} |
736 |
|
|
else |
737 |
dpavlin |
1.1 |
{ |
738 |
dpavlin |
1.2 |
unshift @vals, ''; |
739 |
|
|
} |
740 |
|
|
|
741 |
|
|
$sql = "update \"$tabname\" set "; |
742 |
|
|
my $ocnt = 0; |
743 |
|
|
for (my $i = 1; $i <= $#anames; $i++) |
744 |
|
|
{ |
745 |
|
|
if ($vals[$i] eq '\N') |
746 |
|
|
{ |
747 |
|
|
if ($i == $Stables{$tabname}->[2]) |
748 |
|
|
{ |
749 |
|
|
printf STDERR "NULL key\n" unless ($quiet); |
750 |
|
|
return(-2); |
751 |
|
|
} |
752 |
|
|
$vals[$i] = 'null'; |
753 |
|
|
} |
754 |
|
|
else |
755 |
|
|
{ |
756 |
|
|
$vals[$i] = "'" . $vals[$i] . "'"; |
757 |
|
|
next if $i == $Stables{$tabname}->[2]; |
758 |
|
|
} |
759 |
|
|
$ocnt++; |
760 |
|
|
$sql .= ', ' if $ocnt > 1; |
761 |
|
|
$sql .= "\"$anames[$i]\" = $vals[$i]"; |
762 |
dpavlin |
1.1 |
} |
763 |
dpavlin |
1.2 |
if ($oidkey) |
764 |
dpavlin |
1.1 |
{ |
765 |
dpavlin |
1.2 |
$sql .= " where \"$Stables{$tabname}->[1]\" = $oidkey"; |
766 |
dpavlin |
1.1 |
} |
767 |
dpavlin |
1.2 |
else |
768 |
dpavlin |
1.1 |
{ |
769 |
dpavlin |
1.2 |
$sql .= " where \"$Stables{$tabname}->[1]\" = ". |
770 |
|
|
$vals[$Stables{$tabname}->[2]]; |
771 |
dpavlin |
1.1 |
} |
772 |
dpavlin |
1.2 |
|
773 |
|
|
printf "$sql\n" if $debug; |
774 |
|
|
|
775 |
dpavlin |
1.6 |
$result = $sconn->exec($sql); |
776 |
dpavlin |
1.2 |
|
777 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
778 |
dpavlin |
1.1 |
{ |
779 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
780 |
dpavlin |
1.2 |
return(-1); |
781 |
dpavlin |
1.1 |
} |
782 |
dpavlin |
1.2 |
next if $result->cmdTuples == 1; # updated |
783 |
|
|
|
784 |
|
|
if ($result->cmdTuples > 1) |
785 |
|
|
{ |
786 |
|
|
printf STDERR "Duplicate keys\n" unless ($quiet); |
787 |
|
|
return(-2); |
788 |
|
|
} |
789 |
|
|
|
790 |
|
|
# no key - copy |
791 |
|
|
push @CopyBuf, "$istring\n"; |
792 |
|
|
$CBufLen += length($istring); |
793 |
|
|
|
794 |
|
|
if ($CBufLen >= $CBufMax) |
795 |
dpavlin |
1.1 |
{ |
796 |
dpavlin |
1.6 |
$result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
797 |
dpavlin |
1.2 |
return($result) if $result; |
798 |
|
|
@CopyBuf = (); |
799 |
|
|
$CBufLen = 0; |
800 |
|
|
} |
801 |
|
|
} |
802 |
|
|
|
803 |
|
|
if (! $ok) |
804 |
|
|
{ |
805 |
|
|
printf STDERR "No end of input in UPDATE section\n" unless ($quiet); |
806 |
|
|
return(-2); |
807 |
|
|
} |
808 |
|
|
|
809 |
|
|
if ($CBufLen) |
810 |
|
|
{ |
811 |
|
|
print "@CopyBuf\n" if $debug; |
812 |
dpavlin |
1.6 |
$result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
813 |
dpavlin |
1.2 |
return($result) if $result; |
814 |
|
|
} |
815 |
dpavlin |
1.1 |
|
816 |
dpavlin |
1.2 |
return(0); |
817 |
dpavlin |
1.1 |
} |
818 |
|
|
|
819 |
dpavlin |
1.2 |
sub DoInsert |
820 |
dpavlin |
1.1 |
{ |
821 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
822 |
dpavlin |
1.1 |
|
823 |
dpavlin |
1.2 |
# only insert rows into tables that the slave wants |
824 |
|
|
if (! defined($Stables{$tabname})) { |
825 |
|
|
print "Not configured to insert rows from table $tabname\n" unless $quiet; |
826 |
|
|
while (<$inpf>) { |
827 |
dpavlin |
1.3 |
my $istring = $_; |
828 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
829 |
|
|
last if ($istring eq '\.'); |
830 |
dpavlin |
1.1 |
} |
831 |
dpavlin |
1.2 |
return(0); |
832 |
|
|
} |
833 |
dpavlin |
1.1 |
|
834 |
dpavlin |
1.2 |
my $oidkey = ($Stables{$tabname}->[2] < 0) ? 1 : 0; |
835 |
|
|
|
836 |
|
|
my @CopyBuf = (); |
837 |
|
|
my $CBufLen = 0; |
838 |
|
|
my $CBufMax = 16 * 1024 * 1024; # max size of buf for copy |
839 |
|
|
|
840 |
|
|
my $istring; |
841 |
|
|
my $ok = 0; |
842 |
|
|
while(<$inpf>) |
843 |
|
|
{ |
844 |
|
|
if ($_ !~ /\n$/) |
845 |
|
|
{ |
846 |
|
|
printf STDERR "Invalid format\n" unless ($quiet); |
847 |
|
|
return(-2); |
848 |
|
|
} |
849 |
|
|
$istring = $_; |
850 |
|
|
$istring =~ s/\n//; |
851 |
|
|
if ($istring eq '\.') |
852 |
|
|
{ |
853 |
|
|
$ok = 1; |
854 |
|
|
last; |
855 |
|
|
} |
856 |
|
|
|
857 |
|
|
# no key - copy |
858 |
|
|
push @CopyBuf, "$istring\n"; |
859 |
|
|
$CBufLen += length($istring); |
860 |
|
|
|
861 |
|
|
if ($CBufLen >= $CBufMax) |
862 |
dpavlin |
1.1 |
{ |
863 |
dpavlin |
1.6 |
my $result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
864 |
dpavlin |
1.2 |
return($result) if $result; |
865 |
|
|
@CopyBuf = (); |
866 |
|
|
$CBufLen = 0; |
867 |
|
|
} |
868 |
|
|
} |
869 |
|
|
|
870 |
|
|
if (! $ok) |
871 |
|
|
{ |
872 |
|
|
printf STDERR "No end of input in INSERT section\n" unless ($quiet); |
873 |
|
|
return(-2); |
874 |
|
|
} |
875 |
|
|
|
876 |
|
|
if ($CBufLen) |
877 |
|
|
{ |
878 |
|
|
print "@CopyBuf\n" if $debug; |
879 |
dpavlin |
1.6 |
my $result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
880 |
dpavlin |
1.2 |
return($result) if $result; |
881 |
|
|
} |
882 |
|
|
|
883 |
|
|
return(0); |
884 |
|
|
} |
885 |
dpavlin |
1.1 |
|
886 |
|
|
|
887 |
dpavlin |
1.2 |
sub DoCopy |
888 |
|
|
{ |
889 |
dpavlin |
1.6 |
my ($sconn, $tabname, $withoids, $CBuf) = @_; # (@_[0], @_[1], @_[2], @_[3]); |
890 |
dpavlin |
1.2 |
|
891 |
|
|
my $sql = "COPY \"$tabname\" " . (($withoids) ? "WITH OIDS " : '') . |
892 |
|
|
"FROM STDIN"; |
893 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
894 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COPY_IN) |
895 |
|
|
{ |
896 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
897 |
dpavlin |
1.2 |
return(-1); |
898 |
|
|
} |
899 |
|
|
|
900 |
dpavlin |
1.3 |
foreach my $str (@{$CBuf}) |
901 |
dpavlin |
1.2 |
{ |
902 |
dpavlin |
1.6 |
$sconn->putline($str); |
903 |
dpavlin |
1.2 |
} |
904 |
|
|
|
905 |
dpavlin |
1.6 |
$sconn->putline("\\.\n"); |
906 |
dpavlin |
1.2 |
|
907 |
dpavlin |
1.6 |
if ($sconn->endcopy) |
908 |
dpavlin |
1.2 |
{ |
909 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
910 |
dpavlin |
1.2 |
return(-1); |
911 |
|
|
} |
912 |
|
|
|
913 |
|
|
return(0); |
914 |
dpavlin |
1.1 |
} |
915 |
|
|
|
916 |
|
|
|
917 |
|
|
# |
918 |
|
|
# Returns last SyncID applied on Slave |
919 |
|
|
# |
920 |
|
|
sub GetSyncID |
921 |
|
|
{ |
922 |
dpavlin |
1.6 |
my ($sconn) = @_; # (@_[0]); |
923 |
dpavlin |
1.2 |
|
924 |
dpavlin |
1.6 |
my $result = $sconn->exec("select max(syncid) from _RSERV_SLAVE_SYNC_"); |
925 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
926 |
|
|
{ |
927 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
928 |
dpavlin |
1.2 |
return(-1); |
929 |
|
|
} |
930 |
|
|
my @row = $result->fetchrow; |
931 |
|
|
return(undef) unless defined $row[0]; # null |
932 |
|
|
return($row[0]); |
933 |
dpavlin |
1.1 |
} |
934 |
|
|
|
935 |
|
|
# |
936 |
|
|
# Updates _RSERV_SYNC_ on Master with Slave SyncID |
937 |
|
|
# |
938 |
|
|
sub SyncSyncID |
939 |
|
|
{ |
940 |
dpavlin |
1.8 |
my ($mconn, $sserver, $syncid) = @_; # (@_[0], @_[1], @_[2]); |
941 |
dpavlin |
1.2 |
|
942 |
dpavlin |
1.6 |
my $result = $mconn->exec("BEGIN"); |
943 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
944 |
|
|
{ |
945 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
946 |
|
|
$mconn->exec("ROLLBACK"); |
947 |
dpavlin |
1.2 |
return(-1); |
948 |
|
|
} |
949 |
|
|
|
950 |
dpavlin |
1.6 |
$result = $mconn->exec("select synctime, status from _RSERV_SYNC_" . |
951 |
dpavlin |
1.8 |
" where server = $sserver AND syncid = $syncid" . |
952 |
dpavlin |
1.2 |
" for update"); |
953 |
|
|
if ($result->resultStatus ne PGRES_TUPLES_OK) |
954 |
|
|
{ |
955 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
956 |
|
|
$mconn->exec("ROLLBACK"); |
957 |
dpavlin |
1.2 |
return(-1); |
958 |
|
|
} |
959 |
|
|
my @row = $result->fetchrow; |
960 |
|
|
if (! defined $row[0]) |
961 |
|
|
{ |
962 |
dpavlin |
1.8 |
printf STDERR "No SyncID $syncid found for server $sserver\n" unless ($quiet); |
963 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
964 |
dpavlin |
1.2 |
return(0); |
965 |
|
|
} |
966 |
|
|
if ($row[1] > 0) |
967 |
|
|
{ |
968 |
|
|
printf STDERR "SyncID $syncid for server ". |
969 |
dpavlin |
1.8 |
"$sserver already updated\n" unless ($quiet); |
970 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
971 |
dpavlin |
1.2 |
return(0); |
972 |
|
|
} |
973 |
dpavlin |
1.6 |
$result = $mconn->exec("update _RSERV_SYNC_" . |
974 |
dpavlin |
1.2 |
" set synctime = now(), status = 1" . |
975 |
dpavlin |
1.8 |
" where server = $sserver AND syncid = $syncid"); |
976 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
977 |
|
|
{ |
978 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
979 |
|
|
$mconn->exec("ROLLBACK"); |
980 |
dpavlin |
1.2 |
return(-1); |
981 |
|
|
} |
982 |
dpavlin |
1.6 |
$result = $mconn->exec("delete from _RSERV_SYNC_" . |
983 |
dpavlin |
1.8 |
" where server = $sserver AND syncid < $syncid"); |
984 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
985 |
|
|
{ |
986 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
987 |
|
|
$mconn->exec("ROLLBACK"); |
988 |
dpavlin |
1.2 |
return(-1); |
989 |
|
|
} |
990 |
|
|
|
991 |
dpavlin |
1.6 |
$result = $mconn->exec("COMMIT"); |
992 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
993 |
|
|
{ |
994 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
995 |
|
|
$mconn->exec("ROLLBACK"); |
996 |
dpavlin |
1.2 |
return(-1); |
997 |
|
|
} |
998 |
|
|
|
999 |
|
|
return(1); |
1000 |
dpavlin |
1.1 |
} |
1001 |
|
|
|
1002 |
dpavlin |
1.11 |
# stuff moved from perl scripts for better re-use |
1003 |
|
|
|
1004 |
|
|
sub Rollback { |
1005 |
|
|
my $conn = shift @_; |
1006 |
|
|
|
1007 |
|
|
print STDERR $conn->errorMessage; |
1008 |
|
|
$conn->exec("ROLLBACK"); |
1009 |
|
|
} |
1010 |
|
|
|
1011 |
|
|
sub RollbackAndQuit { |
1012 |
|
|
my $conn = shift @_; |
1013 |
|
|
|
1014 |
|
|
Rollback($conn); |
1015 |
|
|
exit (-1); |
1016 |
|
|
} |
1017 |
|
|
|
1018 |
|
|
sub Connect { |
1019 |
|
|
my $info = shift @_; |
1020 |
|
|
|
1021 |
|
|
print("Connecting to $info\n") if ($debug || $verbose); |
1022 |
|
|
my $conn = Pg::connectdb($info); |
1023 |
|
|
if ($conn->status != PGRES_CONNECTION_OK) { |
1024 |
|
|
print STDERR "Failed opening $info\n"; |
1025 |
|
|
exit 1; |
1026 |
|
|
} |
1027 |
|
|
return $conn; |
1028 |
|
|
} |
1029 |
|
|
|
1030 |
|
|
sub Exec { |
1031 |
|
|
my $conn = shift @_; |
1032 |
|
|
my $sql = shift @_; |
1033 |
|
|
|
1034 |
|
|
my $result = $conn->exec($sql); |
1035 |
|
|
print STDERR "$sql\n" if ($debug); |
1036 |
|
|
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
1037 |
|
|
} |
1038 |
|
|
|
1039 |
|
|
sub Exec2 { |
1040 |
|
|
my $mconn = shift @_; |
1041 |
|
|
my $sconn = shift @_; |
1042 |
|
|
my $sql = shift @_; |
1043 |
|
|
|
1044 |
|
|
my $result = $mconn->exec($sql); |
1045 |
|
|
RollbackAndQuit($mconn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
1046 |
|
|
$result = $sconn->exec($sql); |
1047 |
|
|
RollbackAndQuit($sconn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
1048 |
|
|
} |
1049 |
|
|
|
1050 |
dpavlin |
1.1 |
1; |