1 |
dpavlin |
1.1 |
# -*- perl -*- |
2 |
|
|
# RServ.pm |
3 |
|
|
# Vadim Mikheev, (c) 2000, PostgreSQL Inc. |
4 |
|
|
|
5 |
|
|
package RServ; |
6 |
|
|
|
7 |
|
|
require Exporter; |
8 |
|
|
@ISA = qw(Exporter); |
9 |
dpavlin |
1.11 |
@EXPORT = qw(PrepareSnapshot ApplySnapshot GetSyncID SyncSyncID CleanLog GetServerId |
10 |
dpavlin |
1.17 |
Rollback RollbackAndQuit Connect Exec Exec2 MkInfo ExecDebug |
11 |
dpavlin |
1.11 |
$debug $quiet $verbose |
12 |
|
|
); |
13 |
dpavlin |
1.1 |
@EXPORT_OK = qw(); |
14 |
dpavlin |
1.3 |
use strict; |
15 |
dpavlin |
1.1 |
use Pg; |
16 |
|
|
|
17 |
dpavlin |
1.11 |
my $debug = 0; |
18 |
|
|
my $quiet = 1; |
19 |
|
|
my $verbose = 0; |
20 |
dpavlin |
1.1 |
|
21 |
dpavlin |
1.12 |
$debug = 1; |
22 |
|
|
$quiet = 0; |
23 |
|
|
$verbose = 1; |
24 |
|
|
|
25 |
dpavlin |
1.1 |
my %Mtables = (); |
26 |
|
|
my %Stables = (); |
27 |
|
|
|
28 |
dpavlin |
1.11 |
sub GetServerId |
29 |
dpavlin |
1.1 |
{ |
30 |
dpavlin |
1.11 |
my ($mconn, $DB, $Host) = @_; # (@_[0], @_[1]. @_[2]); |
31 |
|
|
|
32 |
|
|
print STDERR "GetServerId: host $Host, database $DB\n" if ($debug); |
33 |
dpavlin |
1.1 |
|
34 |
dpavlin |
1.6 |
my $result = $mconn->exec("SELECT server FROM _RSERV_SERVERS_ WHERE". |
35 |
dpavlin |
1.11 |
" host='$Host' AND dbase='$DB'"); |
36 |
dpavlin |
1.3 |
|
37 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
38 |
|
|
{ |
39 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
40 |
dpavlin |
1.2 |
return(-1); |
41 |
|
|
} |
42 |
|
|
|
43 |
dpavlin |
1.3 |
if ($result->cmdTuples && $result->cmdTuples > 1) |
44 |
dpavlin |
1.2 |
{ |
45 |
dpavlin |
1.11 |
printf STDERR "Duplicate host definitions.\n" unless ($quiet); |
46 |
dpavlin |
1.2 |
return(-2); |
47 |
|
|
} |
48 |
|
|
|
49 |
|
|
my @row = $result->fetchrow; |
50 |
dpavlin |
1.10 |
|
51 |
dpavlin |
1.17 |
print STDERR "GetServerId($DB,$Host) == $row[0]\n" if ($debug); |
52 |
dpavlin |
1.10 |
|
53 |
dpavlin |
1.2 |
return $row[0]; |
54 |
|
|
} |
55 |
dpavlin |
1.1 |
|
56 |
dpavlin |
1.2 |
sub PrepareSnapshot |
57 |
|
|
{ |
58 |
dpavlin |
1.17 |
my ($mconn, $sconn, $outf, $mserver, $sserver, $multimaster, $onlytables) = @_; |
59 |
dpavlin |
1.9 |
|
60 |
|
|
if ($mserver == $sserver) { |
61 |
dpavlin |
1.10 |
print STDERR "master and slave numbers are same [$mserver] !\n"; |
62 |
dpavlin |
1.9 |
return(-1); |
63 |
|
|
} |
64 |
|
|
|
65 |
dpavlin |
1.17 |
print STDERR "PrepareSnapshot master: $mserver slave: $sserver\n" if ($debug); |
66 |
dpavlin |
1.1 |
|
67 |
dpavlin |
1.16 |
# dump master server ID into snapshot file (to prevent replication |
68 |
|
|
# of colums from master back to slave) |
69 |
|
|
print $outf "-- SERVER $mserver\n"; |
70 |
|
|
|
71 |
dpavlin |
1.2 |
# first, we must know for wich tables the slave subscribed |
72 |
dpavlin |
1.15 |
my $result = Exec($sconn,"SELECT tname FROM _RSERV_SLAVE_TABLES_", -1); |
73 |
|
|
return (-1) if ($result == -1); |
74 |
|
|
|
75 |
dpavlin |
1.2 |
my @row; |
76 |
|
|
while (@row = $result->fetchrow) { |
77 |
|
|
$Stables{$row[0]} = 1; |
78 |
|
|
} |
79 |
|
|
|
80 |
dpavlin |
1.17 |
print STDERR "Prepare snapshot for tables: ",join(",",keys %Stables),"\n" if ($debug); |
81 |
dpavlin |
1.14 |
|
82 |
dpavlin |
1.15 |
Exec($mconn,"BEGIN"); |
83 |
|
|
Exec($mconn,"set transaction isolation level serializable"); |
84 |
dpavlin |
1.2 |
|
85 |
|
|
# MAP oid --> tabname, keyname, key_type |
86 |
dpavlin |
1.15 |
my $sql = qq{ |
87 |
|
|
select pgc.oid, pgc.relname, pga.attname, pgt.typname |
88 |
|
|
from _RSERV_TABLES_ rt, pg_class pgc, pg_attribute pga, |
89 |
|
|
pg_type pgt |
90 |
|
|
where pgc.oid = rt.reloid AND pga.attrelid = rt.reloid |
91 |
|
|
AND pga.attnum = rt.key AND pga.atttypid=pgt.oid |
92 |
|
|
}; |
93 |
|
|
$result = Exec($mconn,$sql); |
94 |
|
|
|
95 |
dpavlin |
1.2 |
while (@row = $result->fetchrow) |
96 |
|
|
{ |
97 |
dpavlin |
1.16 |
printf "$row[0], $row[1], $row[2]\n" if ($debug); |
98 |
dpavlin |
1.5 |
if (ref($onlytables) eq 'HASH') { |
99 |
|
|
next unless (exists $onlytables->{$row[1]}); |
100 |
|
|
$onlytables->{$row[1]} = $row[0] unless ($onlytables->{$row[1]}); |
101 |
|
|
} |
102 |
dpavlin |
1.2 |
push @{$Mtables{$row[0]}}, $row[1], $row[2], $row[3]; |
103 |
|
|
} |
104 |
dpavlin |
1.12 |
|
105 |
dpavlin |
1.17 |
print STDERR "Master database table oids: ",join(",",keys %Mtables),"\n" if ($debug); |
106 |
dpavlin |
1.15 |
if (! %Mtables) { |
107 |
|
|
print STDERR "FATAL: can't find oids for tables in master! Did you run SlaveAddTable?\n"; |
108 |
|
|
RollbackAndQuit($mconn); |
109 |
|
|
} |
110 |
dpavlin |
1.12 |
|
111 |
dpavlin |
1.2 |
# Read last succeeded sync |
112 |
dpavlin |
1.15 |
$sql = qq{ |
113 |
|
|
select syncid, synctime, minid, maxid, active from _RSERV_SYNC_ |
114 |
|
|
where server = $sserver AND syncid = |
115 |
|
|
(select max(syncid) from _RSERV_SYNC_ |
116 |
|
|
where server = $sserver AND status > 0) |
117 |
|
|
}; |
118 |
dpavlin |
1.2 |
|
119 |
dpavlin |
1.15 |
$result = Exec($mconn,$sql); |
120 |
dpavlin |
1.16 |
|
121 |
dpavlin |
1.2 |
my @lastsync = $result->fetchrow; |
122 |
dpavlin |
1.17 |
print STDERR "lastsync: ",join(",",@lastsync),"\n" if ($debug); |
123 |
dpavlin |
1.9 |
|
124 |
|
|
# exclude data which originated from master server |
125 |
|
|
my $sel_server = " and l.server = $mserver "; |
126 |
|
|
|
127 |
dpavlin |
1.2 |
my $sinfo = ""; |
128 |
dpavlin |
1.4 |
if (@lastsync && $lastsync[3] ne '') # sync info |
129 |
dpavlin |
1.2 |
{ |
130 |
|
|
$sinfo = "and (l.logid >= $lastsync[3]"; |
131 |
|
|
$sinfo .= " or l.logid in ($lastsync[4])" if $lastsync[4] ne ''; |
132 |
|
|
$sinfo .= ")"; |
133 |
|
|
} |
134 |
dpavlin |
1.16 |
|
135 |
|
|
my @keys; # keys in this snapshot |
136 |
|
|
|
137 |
dpavlin |
1.2 |
my $havedeal = 0; |
138 |
|
|
|
139 |
|
|
# DELETED rows |
140 |
|
|
$sql = "select l.reloid, l.key from _RSERV_LOG_ l" . |
141 |
dpavlin |
1.9 |
" where l.delete = 1 $sinfo $sel_server order by l.reloid"; |
142 |
dpavlin |
1.2 |
|
143 |
dpavlin |
1.9 |
printf "DELETED: $sql\n" if $debug; |
144 |
dpavlin |
1.2 |
|
145 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
146 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_TUPLES_OK) { |
147 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
148 |
|
|
$mconn->exec("ROLLBACK"); |
149 |
dpavlin |
1.2 |
return(-1); |
150 |
|
|
} |
151 |
|
|
|
152 |
dpavlin |
1.7 |
my $lastoid = -1; |
153 |
dpavlin |
1.17 |
while (@row = $result->fetchrow) { |
154 |
dpavlin |
1.2 |
next unless exists $Mtables{$row[0]}; |
155 |
|
|
next unless exists $Stables{$Mtables{$row[0]}[0]}; |
156 |
|
|
|
157 |
dpavlin |
1.17 |
if ($lastoid != $row[0]) { |
158 |
|
|
if ($lastoid == -1) { |
159 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
160 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
161 |
|
|
$havedeal = 1; |
162 |
dpavlin |
1.17 |
} else { |
163 |
dpavlin |
1.2 |
printf $outf "\\.\n"; |
164 |
|
|
} |
165 |
|
|
printf $outf "-- DELETE $Mtables{$row[0]}[0]\n"; |
166 |
|
|
$lastoid = $row[0]; |
167 |
|
|
} |
168 |
dpavlin |
1.17 |
if (! defined $row[1]) { |
169 |
dpavlin |
1.2 |
print STDERR "NULL key\n" unless ($quiet); |
170 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
171 |
dpavlin |
1.2 |
return(-2); |
172 |
|
|
} |
173 |
|
|
printf $outf "%s\n", OutputValue($row[1]); |
174 |
dpavlin |
1.17 |
push @keys,OutputKey($row[2],$Mtables{$row[0]}[2]); |
175 |
dpavlin |
1.2 |
} |
176 |
dpavlin |
1.7 |
printf $outf "\\.\n" if ($lastoid != -1); |
177 |
dpavlin |
1.2 |
|
178 |
|
|
# UPDATED rows |
179 |
|
|
|
180 |
|
|
my ($taboid, $tabname, $tabkey); |
181 |
|
|
foreach $taboid (keys %Mtables) |
182 |
|
|
{ |
183 |
dpavlin |
1.3 |
my ($tabname, $tabkey, $keytype) = @{$Mtables{$taboid}}; |
184 |
dpavlin |
1.2 |
next unless exists $Stables{$tabname}; |
185 |
|
|
|
186 |
|
|
my $oidkey = ($tabkey eq 'oid') ? "_$tabname.oid," : ''; |
187 |
|
|
|
188 |
dpavlin |
1.16 |
$sql = sprintf "SELECT \"_$tabname\".\"${tabkey}\",$oidkey \"_$tabname\".* FROM \"$tabname\" ". |
189 |
dpavlin |
1.2 |
"\"_$tabname\", _RSERV_LOG_ l WHERE l.reloid = $taboid AND l.update = 1". |
190 |
dpavlin |
1.9 |
" $sinfo AND \"_$tabname\".\"${tabkey}\"=l.key::${keytype}". |
191 |
|
|
$sel_server; |
192 |
dpavlin |
1.2 |
|
193 |
dpavlin |
1.9 |
printf "UPDATED: $sql\n" if $debug; |
194 |
dpavlin |
1.2 |
|
195 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
196 |
dpavlin |
1.1 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
197 |
|
|
{ |
198 |
dpavlin |
1.2 |
printf $outf "-- ERROR\n" if $havedeal; |
199 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
200 |
|
|
$mconn->exec("ROLLBACK"); |
201 |
dpavlin |
1.2 |
return(-1); |
202 |
|
|
} |
203 |
|
|
next if $result->ntuples <= 0; |
204 |
|
|
if (! $havedeal) |
205 |
|
|
{ |
206 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
207 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
208 |
|
|
$havedeal = 1; |
209 |
dpavlin |
1.1 |
} |
210 |
dpavlin |
1.2 |
printf $outf "-- UPDATE $tabname\n"; |
211 |
|
|
printf "-- UPDATE $tabname\n" if $debug; |
212 |
|
|
while (@row = $result->fetchrow) |
213 |
dpavlin |
1.1 |
{ |
214 |
dpavlin |
1.17 |
push @keys,OutputKey(shift @row,$keytype); |
215 |
dpavlin |
1.3 |
for (my $i = 0; $i <= $#row; $i++) |
216 |
dpavlin |
1.2 |
{ |
217 |
|
|
printf $outf " " if $i; |
218 |
|
|
printf " " if $i && $debug; |
219 |
|
|
printf $outf "%s", OutputValue($row[$i]); |
220 |
|
|
printf "%s", OutputValue($row[$i]) if $debug;; |
221 |
|
|
} |
222 |
|
|
printf $outf "\n"; |
223 |
|
|
printf "\n" if $debug; |
224 |
|
|
} |
225 |
|
|
printf $outf "\\.\n"; |
226 |
|
|
printf "\\.\n" if $debug;; |
227 |
|
|
} |
228 |
|
|
|
229 |
|
|
# INSERTED rows |
230 |
|
|
|
231 |
|
|
foreach $taboid (keys %Mtables) |
232 |
|
|
{ |
233 |
dpavlin |
1.3 |
my ($tabname, $tabkey, $keytype) = @{$Mtables{$taboid}}; |
234 |
dpavlin |
1.2 |
next unless exists $Stables{$tabname}; |
235 |
|
|
|
236 |
|
|
my $oidkey = ($tabkey eq 'oid') ? "_$tabname.oid," : ''; |
237 |
|
|
|
238 |
dpavlin |
1.16 |
$sql = sprintf "SELECT \"_$tabname\".\"${tabkey}\", $oidkey \"_$tabname\".* FROM \"$tabname\" ". |
239 |
dpavlin |
1.2 |
"\"_$tabname\", _RSERV_LOG_ l WHERE l.reloid = $taboid AND l.insert = 1". |
240 |
dpavlin |
1.9 |
" $sinfo AND \"_$tabname\".\"${tabkey}\"=l.key::${keytype}". |
241 |
|
|
$sel_server; |
242 |
dpavlin |
1.2 |
|
243 |
dpavlin |
1.9 |
printf "INSERTED: $sql\n" if $debug; |
244 |
dpavlin |
1.2 |
|
245 |
dpavlin |
1.6 |
$result = $mconn->exec($sql); |
246 |
dpavlin |
1.1 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
247 |
|
|
{ |
248 |
dpavlin |
1.2 |
printf $outf "-- ERROR\n" if $havedeal; |
249 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
250 |
|
|
$mconn->exec("ROLLBACK"); |
251 |
dpavlin |
1.2 |
return(-1); |
252 |
|
|
} |
253 |
|
|
next if $result->ntuples <= 0; |
254 |
|
|
if (! $havedeal) |
255 |
|
|
{ |
256 |
dpavlin |
1.6 |
my $syncid = GetSYNCID($mconn, $outf); |
257 |
dpavlin |
1.2 |
return($syncid) if $syncid < 0; |
258 |
|
|
$havedeal = 1; |
259 |
dpavlin |
1.1 |
} |
260 |
dpavlin |
1.2 |
printf $outf "-- INSERT $tabname\n"; |
261 |
|
|
printf "-- INSERT $tabname\n" if $debug; |
262 |
dpavlin |
1.1 |
while (@row = $result->fetchrow) |
263 |
|
|
{ |
264 |
dpavlin |
1.17 |
push @keys,OutputKey(shift @row,$keytype); |
265 |
dpavlin |
1.3 |
for (my $i = 0; $i <= $#row; $i++) |
266 |
dpavlin |
1.2 |
{ |
267 |
|
|
printf $outf " " if $i; |
268 |
|
|
printf " " if $i && $debug; |
269 |
|
|
printf $outf "%s", OutputValue($row[$i]); |
270 |
dpavlin |
1.17 |
printf "%s", OutputValue($row[$i]) if $debug; |
271 |
dpavlin |
1.2 |
} |
272 |
|
|
printf $outf "\n"; |
273 |
|
|
printf "\n" if $debug; |
274 |
|
|
} |
275 |
|
|
printf $outf "\\.\n"; |
276 |
|
|
printf "\\.\n" if $debug;; |
277 |
|
|
} |
278 |
|
|
|
279 |
|
|
|
280 |
|
|
unless ($havedeal) |
281 |
|
|
{ |
282 |
dpavlin |
1.17 |
print STDERR "hon't have deal, rollback...\n" if ($debug); |
283 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
284 |
dpavlin |
1.2 |
return(0); |
285 |
|
|
} |
286 |
|
|
|
287 |
|
|
# Remember this snapshot info |
288 |
dpavlin |
1.8 |
$result = $mconn->exec("select _rserv_sync_($sserver)"); |
289 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
290 |
|
|
{ |
291 |
|
|
printf $outf "-- ERROR\n"; |
292 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
293 |
|
|
$mconn->exec("ROLLBACK"); |
294 |
dpavlin |
1.2 |
return(-1); |
295 |
|
|
} |
296 |
|
|
|
297 |
dpavlin |
1.6 |
$result = $mconn->exec("COMMIT"); |
298 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
299 |
|
|
{ |
300 |
|
|
printf $outf "-- ERROR\n"; |
301 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
302 |
|
|
$mconn->exec("ROLLBACK"); |
303 |
dpavlin |
1.2 |
return(-1); |
304 |
|
|
} |
305 |
dpavlin |
1.16 |
|
306 |
dpavlin |
1.17 |
if ($multimaster) { |
307 |
dpavlin |
1.16 |
# save keys |
308 |
dpavlin |
1.17 |
# my $key_out = "-- KEYS ".($#keys+1)."\n(\"key\" like ".join(") or (\"key\" like ",@keys).")\n"; |
309 |
dpavlin |
1.16 |
my $key_out = "-- KEYS ".($#keys+1)."\n".join(",",@keys)."\n"; |
310 |
|
|
print $outf $key_out; |
311 |
|
|
print $key_out if ($debug); |
312 |
|
|
} |
313 |
|
|
|
314 |
dpavlin |
1.2 |
printf $outf "-- OK\n"; |
315 |
|
|
printf "-- OK\n" if $debug; |
316 |
|
|
|
317 |
|
|
return(1); |
318 |
|
|
|
319 |
dpavlin |
1.1 |
} |
320 |
|
|
|
321 |
|
|
sub OutputValue |
322 |
|
|
{ |
323 |
|
|
my ($val) = @_; # @_[0]; |
324 |
|
|
|
325 |
|
|
return("\\N") unless defined $val; |
326 |
|
|
|
327 |
|
|
$val =~ s/\\/\\\\/g; |
328 |
|
|
$val =~ s/ /\\011/g; |
329 |
|
|
$val =~ s/\n/\\012/g; |
330 |
|
|
$val =~ s/\'/\\047/g; |
331 |
|
|
|
332 |
|
|
return($val); |
333 |
|
|
} |
334 |
|
|
|
335 |
dpavlin |
1.16 |
sub OutputKey { |
336 |
|
|
my $val = shift; |
337 |
dpavlin |
1.17 |
my $cast = shift || ''; |
338 |
|
|
# $cast = "::$cast" if ($cast); |
339 |
|
|
$cast = "::text"; |
340 |
|
|
# $cast = ""; |
341 |
dpavlin |
1.16 |
|
342 |
dpavlin |
1.17 |
return "null" if (! defined($val)); |
343 |
|
|
|
344 |
|
|
print STDERR "Key: ${val}${cast}\n" if ($debug); |
345 |
dpavlin |
1.16 |
|
346 |
|
|
if ($val =~ m/^\d+$/) { |
347 |
dpavlin |
1.17 |
return "${val}${cast}"; |
348 |
dpavlin |
1.16 |
} else { |
349 |
dpavlin |
1.17 |
return "'$val'${cast}"; |
350 |
dpavlin |
1.16 |
} |
351 |
|
|
} |
352 |
|
|
|
353 |
dpavlin |
1.1 |
# Get syncid for new snapshot |
354 |
|
|
sub GetSYNCID |
355 |
|
|
{ |
356 |
dpavlin |
1.2 |
my ($conn, $outf) = @_; # (@_[0], @_[1]); |
357 |
|
|
|
358 |
|
|
my $result = $conn->exec("select nextval('_rserv_sync_seq_')"); |
359 |
|
|
if ($result->resultStatus ne PGRES_TUPLES_OK) |
360 |
|
|
{ |
361 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
362 |
|
|
$conn->exec("ROLLBACK"); |
363 |
|
|
return(-1); |
364 |
|
|
} |
365 |
dpavlin |
1.16 |
|
366 |
dpavlin |
1.2 |
my @row = $result->fetchrow; |
367 |
|
|
|
368 |
|
|
printf $outf "-- SYNCID $row[0]\n"; |
369 |
|
|
printf "-- SYNCID $row[0]\n" if $debug; |
370 |
|
|
return($row[0]); |
371 |
dpavlin |
1.1 |
} |
372 |
|
|
|
373 |
|
|
|
374 |
|
|
sub CleanLog |
375 |
|
|
{ |
376 |
dpavlin |
1.5 |
my ($conn, $howold, $onlytables) = @_; # (@_[0], @_[1]); |
377 |
dpavlin |
1.2 |
|
378 |
|
|
my $result = $conn->exec("BEGIN"); |
379 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
380 |
|
|
{ |
381 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
382 |
|
|
$conn->exec("ROLLBACK"); |
383 |
|
|
return(-1); |
384 |
|
|
} |
385 |
|
|
|
386 |
|
|
my $sql = "select rs.maxid, rs.active from _RSERV_SYNC_ rs" . |
387 |
|
|
" where rs.syncid = (select max(rs2.syncid) from _RSERV_SYNC_ rs2" . |
388 |
|
|
" where rs2.server = rs.server AND rs2.status > 0) order by rs.maxid"; |
389 |
|
|
|
390 |
|
|
printf "$sql\n" if $debug; |
391 |
|
|
|
392 |
|
|
$result = $conn->exec($sql); |
393 |
|
|
if ($result->resultStatus ne PGRES_TUPLES_OK) |
394 |
|
|
{ |
395 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
396 |
|
|
return(-1); |
397 |
|
|
} |
398 |
|
|
my $maxid = ''; |
399 |
|
|
my %active = (); |
400 |
|
|
while (my @row = $result->fetchrow) |
401 |
|
|
{ |
402 |
|
|
$maxid = $row[0] if $maxid eq ''; |
403 |
|
|
last if $row[0] > $maxid; |
404 |
|
|
my @ids = split(/[ ]+,[ ]+/, $row[1]); |
405 |
dpavlin |
1.3 |
foreach my $aid (@ids) |
406 |
dpavlin |
1.2 |
{ |
407 |
|
|
$active{$aid} = 1 unless exists $active{$aid}; |
408 |
|
|
} |
409 |
|
|
} |
410 |
|
|
if ($maxid eq '') |
411 |
|
|
{ |
412 |
|
|
print STDERR "No Sync IDs\n" unless ($quiet); |
413 |
|
|
return(0); |
414 |
|
|
} |
415 |
|
|
my $alist = join(',', keys %active); |
416 |
|
|
my $sinfo = "logid < $maxid"; |
417 |
|
|
$sinfo .= " AND logid not in ($alist)" if $alist ne ''; |
418 |
dpavlin |
1.5 |
#if (ref($onlytables) eq 'HASH') { |
419 |
|
|
# foreach my $onlytable (keys %{$onlytables}) { |
420 |
|
|
# $sinfo |
421 |
|
|
# } |
422 |
|
|
#} |
423 |
dpavlin |
1.2 |
$sql = "delete from _RSERV_LOG_ where " . |
424 |
|
|
"logtime < now() - '$howold second'::interval AND $sinfo"; |
425 |
|
|
|
426 |
|
|
printf "$sql\n" if $debug; |
427 |
|
|
|
428 |
|
|
$result = $conn->exec($sql); |
429 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
430 |
|
|
{ |
431 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
432 |
|
|
$conn->exec("ROLLBACK"); |
433 |
|
|
return(-1); |
434 |
|
|
} |
435 |
|
|
$maxid = $result->cmdTuples; |
436 |
|
|
|
437 |
|
|
$result = $conn->exec("COMMIT"); |
438 |
|
|
if ($result->resultStatus ne PGRES_COMMAND_OK) |
439 |
|
|
{ |
440 |
|
|
print STDERR $conn->errorMessage unless ($quiet); |
441 |
|
|
$conn->exec("ROLLBACK"); |
442 |
|
|
return(-1); |
443 |
|
|
} |
444 |
|
|
|
445 |
|
|
return($maxid); |
446 |
|
|
} |
447 |
dpavlin |
1.1 |
|
448 |
dpavlin |
1.2 |
sub ApplySnapshot |
449 |
|
|
{ |
450 |
dpavlin |
1.17 |
my ($sconn, $inpf, $multimaster, $onlytables) = @_; # (@_[0], @_[1]); |
451 |
dpavlin |
1.16 |
|
452 |
|
|
my $serverId; |
453 |
|
|
|
454 |
dpavlin |
1.6 |
my $result = $sconn->exec("BEGIN"); |
455 |
dpavlin |
1.16 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
456 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
457 |
|
|
$sconn->exec("ROLLBACK"); |
458 |
dpavlin |
1.2 |
return(-1); |
459 |
|
|
} |
460 |
|
|
|
461 |
dpavlin |
1.6 |
$result = $sconn->exec("SET CONSTRAINTS ALL DEFERRED"); |
462 |
dpavlin |
1.16 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
463 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
464 |
|
|
$sconn->exec("ROLLBACK"); |
465 |
dpavlin |
1.2 |
return(-1); |
466 |
|
|
} |
467 |
|
|
|
468 |
|
|
# MAP name --> oid, keyname, keynum |
469 |
dpavlin |
1.16 |
my $sql = qq{ |
470 |
|
|
select pgc.oid, pgc.relname, pga.attname, rt.key |
471 |
|
|
from _RSERV_SLAVE_TABLES_ rt, pg_class pgc, pg_attribute pga |
472 |
|
|
where pgc.oid = rt.reloid AND pga.attrelid = rt.reloid |
473 |
|
|
AND pga.attnum = rt.key |
474 |
|
|
}; |
475 |
dpavlin |
1.2 |
|
476 |
dpavlin |
1.6 |
$result = $sconn->exec($sql); |
477 |
dpavlin |
1.16 |
if ($result->resultStatus ne PGRES_TUPLES_OK) { |
478 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
479 |
|
|
$sconn->exec("ROLLBACK"); |
480 |
dpavlin |
1.2 |
return(-1); |
481 |
|
|
} |
482 |
|
|
%Stables = (); |
483 |
dpavlin |
1.16 |
while (my @row = $result->fetchrow) { |
484 |
dpavlin |
1.2 |
# printf "\t%s\t%s\t%s\t\n", $row[1], $row[0], $row[2], $row[3]; |
485 |
dpavlin |
1.5 |
if (ref($onlytables) eq 'HASH') { |
486 |
|
|
next unless (exists $onlytables->{$row[1]}); |
487 |
|
|
$onlytables->{$row[1]} = $row[0] unless ($onlytables->{$row[1]}); |
488 |
|
|
} |
489 |
dpavlin |
1.2 |
push @{$Stables{$row[1]}}, $row[0], $row[2], $row[3]; |
490 |
|
|
} |
491 |
|
|
|
492 |
dpavlin |
1.12 |
print STDERR "Snapshot tables oids: ",join(",",keys %Stables),"\n" if ($debug); |
493 |
|
|
|
494 |
dpavlin |
1.16 |
# save keys from snapshot because we want to update _rserv_log_ with |
495 |
|
|
# correct source server later... |
496 |
|
|
my @keys; |
497 |
dpavlin |
1.17 |
my $keys_sql; |
498 |
dpavlin |
1.16 |
|
499 |
dpavlin |
1.2 |
my $ok = 0; |
500 |
dpavlin |
1.9 |
my $syncid = -1; |
501 |
dpavlin |
1.16 |
while(<$inpf>) { |
502 |
dpavlin |
1.2 |
$_ =~ s/\n//; |
503 |
|
|
my ($cmt, $cmd, $prm) = split (/[ ]+/, $_, 3); |
504 |
dpavlin |
1.11 |
die "FATAL: snapshot format unknown or snapshot corrupted!" if (! $cmt); |
505 |
dpavlin |
1.16 |
if ($cmt ne '--') { |
506 |
dpavlin |
1.2 |
printf STDERR "Invalid format\n" unless ($quiet); |
507 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
508 |
dpavlin |
1.2 |
return(-2); |
509 |
|
|
} |
510 |
dpavlin |
1.16 |
if ($cmd eq 'DELETE') { |
511 |
|
|
if ($syncid == -1) { |
512 |
dpavlin |
1.2 |
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
513 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
514 |
dpavlin |
1.2 |
return(-2); |
515 |
|
|
} |
516 |
dpavlin |
1.6 |
$result = DoDelete($sconn, $inpf, $prm); |
517 |
dpavlin |
1.16 |
if ($result) { |
518 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
519 |
dpavlin |
1.2 |
return($result); |
520 |
|
|
} |
521 |
dpavlin |
1.16 |
} elsif ($cmd eq 'INSERT') { |
522 |
|
|
if ($syncid == -1) { |
523 |
dpavlin |
1.2 |
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
524 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
525 |
dpavlin |
1.2 |
return(-2); |
526 |
|
|
} |
527 |
dpavlin |
1.6 |
$result = DoInsert($sconn, $inpf, $prm); |
528 |
dpavlin |
1.16 |
if ($result) { |
529 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
530 |
dpavlin |
1.2 |
return($result); |
531 |
|
|
} |
532 |
dpavlin |
1.16 |
} elsif ($cmd eq 'UPDATE') { |
533 |
|
|
if ($syncid == -1) { |
534 |
dpavlin |
1.2 |
printf STDERR "Sync ID unspecified\n" unless ($quiet); |
535 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
536 |
dpavlin |
1.2 |
return(-2); |
537 |
|
|
} |
538 |
dpavlin |
1.6 |
$result = DoUpdate($sconn, $inpf, $prm); |
539 |
dpavlin |
1.16 |
if ($result) { |
540 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
541 |
dpavlin |
1.2 |
return($result); |
542 |
|
|
} |
543 |
dpavlin |
1.16 |
} elsif ($cmd eq 'SYNCID') { |
544 |
|
|
if ($syncid != -1) { |
545 |
dpavlin |
1.2 |
printf STDERR "Second Sync ID ?!\n" unless ($quiet); |
546 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
547 |
dpavlin |
1.2 |
return(-2); |
548 |
|
|
} |
549 |
dpavlin |
1.16 |
if ($prm !~ /^\d+$/) { |
550 |
dpavlin |
1.2 |
printf STDERR "Invalid Sync ID $prm\n" unless ($quiet); |
551 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
552 |
dpavlin |
1.2 |
return(-2); |
553 |
|
|
} |
554 |
|
|
$syncid = $prm; |
555 |
|
|
|
556 |
|
|
printf STDERR "Sync ID $syncid\n" unless ($quiet); |
557 |
|
|
|
558 |
dpavlin |
1.17 |
$result = $sconn->exec(qq{ |
559 |
|
|
select syncid, synctime |
560 |
|
|
from _RSERV_SLAVE_SYNC_ |
561 |
|
|
where syncid = |
562 |
|
|
(select max(syncid) from _RSERV_SLAVE_SYNC_) |
563 |
|
|
}); |
564 |
dpavlin |
1.16 |
if ($result->resultStatus ne PGRES_TUPLES_OK) { |
565 |
dpavlin |
1.17 |
print STDERR "can't get current syncid from _rserv_slave_sync_: ",$sconn->errorMessage unless ($quiet); |
566 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
567 |
dpavlin |
1.1 |
return(-1); |
568 |
dpavlin |
1.2 |
} |
569 |
dpavlin |
1.17 |
|
570 |
dpavlin |
1.2 |
my @row = $result->fetchrow; |
571 |
dpavlin |
1.17 |
print STDERR "Slave Sync ID ",($row[0] || "null"),"\n" if ($debug); |
572 |
dpavlin |
1.16 |
if (! defined $row[0]) { |
573 |
dpavlin |
1.17 |
$result = Exec($sconn,qq{ |
574 |
|
|
insert into _RSERV_SLAVE_SYNC_ (syncid, synctime) |
575 |
|
|
values ($syncid, now()) |
576 |
|
|
}); |
577 |
dpavlin |
1.16 |
} elsif ($row[0] >= $prm) { |
578 |
dpavlin |
1.2 |
printf STDERR "Sync-ed to ID $row[0] ($row[1])\n" unless ($quiet); |
579 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
580 |
dpavlin |
1.2 |
return(0); |
581 |
dpavlin |
1.16 |
} else { |
582 |
dpavlin |
1.17 |
$result = Exec($sconn,qq{ |
583 |
|
|
update _RSERV_SLAVE_SYNC_ set syncid = $syncid, synctime = now() |
584 |
|
|
}); |
585 |
dpavlin |
1.2 |
} |
586 |
dpavlin |
1.16 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
587 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
588 |
|
|
$sconn->exec("ROLLBACK"); |
589 |
dpavlin |
1.1 |
return(-1); |
590 |
dpavlin |
1.2 |
} |
591 |
dpavlin |
1.16 |
} elsif ($cmd eq 'OK') { |
592 |
dpavlin |
1.2 |
$ok = 1; |
593 |
|
|
last; |
594 |
dpavlin |
1.16 |
} elsif ($cmd eq 'ERROR') { |
595 |
dpavlin |
1.2 |
printf STDERR "ERROR signaled\n" unless ($quiet); |
596 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
597 |
dpavlin |
1.2 |
return(-2); |
598 |
dpavlin |
1.16 |
} elsif ($cmd eq 'SERVER') { |
599 |
|
|
if ($prm !~ /^\d+$/) { |
600 |
|
|
printf STDERR "Invalid Server ID $prm\n" unless ($quiet); |
601 |
|
|
$sconn->exec("ROLLBACK"); |
602 |
|
|
return(-2); |
603 |
|
|
} |
604 |
|
|
$serverId = $prm; |
605 |
|
|
print STDERR "Server ID $serverId\n" unless ($quiet); |
606 |
|
|
} elsif ($cmd eq 'KEYS') { |
607 |
|
|
if ($prm !~ /^\d+$/) { |
608 |
|
|
printf STDERR "Invalid numer of keys $prm\n" unless ($quiet); |
609 |
|
|
$sconn->exec("ROLLBACK"); |
610 |
|
|
return(-2); |
611 |
|
|
} |
612 |
|
|
my $keys = <$inpf>; |
613 |
|
|
chomp($keys); |
614 |
dpavlin |
1.17 |
if ($multimaster) { |
615 |
|
|
ExecFatch($sconn,"select count(*) from _rserv_log_"); |
616 |
|
|
ExecDebug($sconn,"select * from _rserv_log_"); |
617 |
|
|
my ($logid) = ExecFatch($sconn,"select distinct logid from _rserv_log_ where key in ($keys)"); |
618 |
|
|
$keys_sql = qq{ |
619 |
|
|
update _rserv_log_ set server=$serverId |
620 |
|
|
where key in ($keys) |
621 |
|
|
}; |
622 |
|
|
$keys_sql = qq{ |
623 |
|
|
update _rserv_log_ set server=$serverId |
624 |
|
|
where logid = $logid |
625 |
|
|
}; |
626 |
|
|
|
627 |
|
|
print STDERR "$keys_sql\n" if ($debug); |
628 |
|
|
$result = $sconn->exec($keys_sql); |
629 |
|
|
ExecDebug($sconn,"explain analyze $keys_sql"); |
630 |
|
|
print STDERR "expected $prm updates, got ",$result->ntuples,"\n" if ($result->ntuples != $prm); |
631 |
|
|
# if ($result->resultStatus ne PGRES_COMMAND_OK || $result->ntuples != $prm) { |
632 |
|
|
if (0) { |
633 |
|
|
print STDERR "FATAL: Cannot update source server in _rserv_log_: ",$sconn->errorMessage,"\n"; |
634 |
dpavlin |
1.16 |
$sconn->exec("ROLLBACK"); |
635 |
|
|
return(-1); |
636 |
|
|
} |
637 |
|
|
} |
638 |
|
|
} else { |
639 |
dpavlin |
1.2 |
printf STDERR "Unknown command $cmd\n" unless ($quiet); |
640 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
641 |
dpavlin |
1.2 |
return(-2); |
642 |
|
|
} |
643 |
|
|
} |
644 |
|
|
|
645 |
dpavlin |
1.17 |
ExecFatch($sconn,"select count(*) from _rserv_log_"); |
646 |
|
|
if (! $ok) { |
647 |
dpavlin |
1.2 |
printf STDERR "No OK flag in input\n" unless ($quiet); |
648 |
dpavlin |
1.6 |
$sconn->exec("ROLLBACK"); |
649 |
dpavlin |
1.2 |
return(-2); |
650 |
|
|
} |
651 |
|
|
|
652 |
dpavlin |
1.6 |
$result = $sconn->exec("COMMIT"); |
653 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
654 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
655 |
|
|
$sconn->exec("ROLLBACK"); |
656 |
dpavlin |
1.2 |
return(-1); |
657 |
|
|
} |
658 |
|
|
|
659 |
|
|
return(1); |
660 |
dpavlin |
1.1 |
} |
661 |
|
|
|
662 |
|
|
sub DoDelete |
663 |
|
|
{ |
664 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
665 |
dpavlin |
1.2 |
|
666 |
|
|
# only delete tables that the slave wants |
667 |
|
|
if (! defined($Stables{$tabname})) { |
668 |
dpavlin |
1.17 |
print STDERR "Not configured to delete rows from table $tabname\n" unless $quiet; |
669 |
dpavlin |
1.2 |
while (<$inpf>) { |
670 |
dpavlin |
1.3 |
my $istring = $_; |
671 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
672 |
|
|
last if ($istring eq '\.'); |
673 |
|
|
} |
674 |
|
|
return(0); |
675 |
|
|
} |
676 |
dpavlin |
1.1 |
|
677 |
dpavlin |
1.2 |
my $ok = 0; |
678 |
|
|
while(<$inpf>) |
679 |
|
|
{ |
680 |
|
|
if ($_ !~ /\n$/) |
681 |
|
|
{ |
682 |
|
|
printf STDERR "Invalid format\n" unless ($quiet); |
683 |
|
|
return(-2); |
684 |
|
|
} |
685 |
|
|
my $key = $_; |
686 |
|
|
$key =~ s/\n//; |
687 |
|
|
if ($key eq '\.') |
688 |
dpavlin |
1.1 |
{ |
689 |
dpavlin |
1.2 |
$ok = 1; |
690 |
|
|
last; |
691 |
dpavlin |
1.1 |
} |
692 |
dpavlin |
1.2 |
|
693 |
|
|
my $sql = "delete from \"$tabname\" where ". |
694 |
|
|
"\"$Stables{$tabname}->[1]\" = '$key'"; |
695 |
|
|
|
696 |
|
|
printf "$sql\n" if $debug; |
697 |
|
|
|
698 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
699 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_COMMAND_OK) |
700 |
dpavlin |
1.1 |
{ |
701 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
702 |
dpavlin |
1.2 |
return(-1); |
703 |
dpavlin |
1.1 |
} |
704 |
dpavlin |
1.2 |
} |
705 |
|
|
|
706 |
|
|
if (! $ok) |
707 |
|
|
{ |
708 |
|
|
printf STDERR "No end of input in DELETE section\n" unless ($quiet); |
709 |
|
|
return(-2); |
710 |
|
|
} |
711 |
|
|
|
712 |
|
|
return(0); |
713 |
dpavlin |
1.1 |
} |
714 |
|
|
|
715 |
|
|
|
716 |
|
|
sub DoUpdate |
717 |
|
|
{ |
718 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
719 |
dpavlin |
1.1 |
|
720 |
dpavlin |
1.2 |
# only update the tables that the slave wants |
721 |
|
|
if (! defined($Stables{$tabname})) { |
722 |
dpavlin |
1.17 |
print STDERR "Not configured to update rows from table $tabname\n" unless $quiet; |
723 |
dpavlin |
1.2 |
while (<$inpf>) { |
724 |
dpavlin |
1.3 |
my $istring = $_; |
725 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
726 |
|
|
last if ($istring eq '\.'); |
727 |
|
|
} |
728 |
|
|
return(0); |
729 |
|
|
} |
730 |
dpavlin |
1.1 |
|
731 |
dpavlin |
1.2 |
my $oidkey = ($Stables{$tabname}->[2] < 0) ? 1 : 0; |
732 |
|
|
|
733 |
|
|
my @CopyBuf = (); |
734 |
|
|
my $CBufLen = 0; |
735 |
|
|
my $CBufMax = 16 * 1024 * 1024; # max size of buf for copy |
736 |
|
|
|
737 |
|
|
my $sql = "select attnum, attname from pg_attribute" . |
738 |
|
|
" where attrelid = $Stables{$tabname}->[0] AND attnum > 0"; |
739 |
|
|
|
740 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
741 |
dpavlin |
1.2 |
if ($result->resultStatus ne PGRES_TUPLES_OK) |
742 |
|
|
{ |
743 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
744 |
dpavlin |
1.2 |
return(-1); |
745 |
|
|
} |
746 |
|
|
|
747 |
|
|
my @anames = (); |
748 |
dpavlin |
1.17 |
while (my @row = $result->fetchrow) { |
749 |
dpavlin |
1.2 |
$anames[$row[0]] = $row[1]; |
750 |
|
|
} |
751 |
|
|
|
752 |
|
|
my $istring; |
753 |
|
|
my $ok = 0; |
754 |
dpavlin |
1.17 |
while(<$inpf>) { |
755 |
|
|
if ($_ !~ /\n$/) { |
756 |
dpavlin |
1.2 |
printf STDERR "Invalid format\n" unless ($quiet); |
757 |
|
|
return(-2); |
758 |
|
|
} |
759 |
|
|
$istring = $_; |
760 |
|
|
$istring =~ s/\n//; |
761 |
dpavlin |
1.17 |
if ($istring eq '\.') { |
762 |
dpavlin |
1.2 |
$ok = 1; |
763 |
|
|
last; |
764 |
|
|
} |
765 |
|
|
my @vals = split(/ /, $istring); |
766 |
dpavlin |
1.17 |
if ($oidkey) { |
767 |
|
|
if ($vals[0] !~ /^\d+$/ || $vals[0] <= 0) { |
768 |
dpavlin |
1.2 |
printf STDERR "Invalid OID\n" unless ($quiet); |
769 |
|
|
return(-2); |
770 |
|
|
} |
771 |
|
|
$oidkey = $vals[0]; |
772 |
dpavlin |
1.17 |
} else { |
773 |
dpavlin |
1.2 |
unshift @vals, ''; |
774 |
|
|
} |
775 |
|
|
|
776 |
|
|
$sql = "update \"$tabname\" set "; |
777 |
|
|
my $ocnt = 0; |
778 |
dpavlin |
1.17 |
for (my $i = 1; $i <= $#anames; $i++) { |
779 |
|
|
if ($vals[$i] eq '\N') { |
780 |
|
|
if ($i == $Stables{$tabname}->[2]) { |
781 |
dpavlin |
1.2 |
printf STDERR "NULL key\n" unless ($quiet); |
782 |
|
|
return(-2); |
783 |
|
|
} |
784 |
|
|
$vals[$i] = 'null'; |
785 |
dpavlin |
1.17 |
} else { |
786 |
dpavlin |
1.2 |
$vals[$i] = "'" . $vals[$i] . "'"; |
787 |
|
|
next if $i == $Stables{$tabname}->[2]; |
788 |
|
|
} |
789 |
|
|
$ocnt++; |
790 |
|
|
$sql .= ', ' if $ocnt > 1; |
791 |
|
|
$sql .= "\"$anames[$i]\" = $vals[$i]"; |
792 |
dpavlin |
1.17 |
} if ($oidkey) { |
793 |
dpavlin |
1.2 |
$sql .= " where \"$Stables{$tabname}->[1]\" = $oidkey"; |
794 |
dpavlin |
1.17 |
} else { |
795 |
dpavlin |
1.2 |
$sql .= " where \"$Stables{$tabname}->[1]\" = ". |
796 |
|
|
$vals[$Stables{$tabname}->[2]]; |
797 |
dpavlin |
1.1 |
} |
798 |
dpavlin |
1.2 |
|
799 |
|
|
printf "$sql\n" if $debug; |
800 |
|
|
|
801 |
dpavlin |
1.6 |
$result = $sconn->exec($sql); |
802 |
dpavlin |
1.2 |
|
803 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
804 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
805 |
dpavlin |
1.2 |
return(-1); |
806 |
dpavlin |
1.1 |
} |
807 |
dpavlin |
1.2 |
next if $result->cmdTuples == 1; # updated |
808 |
|
|
|
809 |
dpavlin |
1.17 |
if ($result->cmdTuples > 1) { |
810 |
dpavlin |
1.2 |
printf STDERR "Duplicate keys\n" unless ($quiet); |
811 |
|
|
return(-2); |
812 |
|
|
} |
813 |
|
|
|
814 |
|
|
# no key - copy |
815 |
|
|
push @CopyBuf, "$istring\n"; |
816 |
|
|
$CBufLen += length($istring); |
817 |
|
|
|
818 |
dpavlin |
1.17 |
if ($CBufLen >= $CBufMax) { |
819 |
dpavlin |
1.6 |
$result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
820 |
dpavlin |
1.2 |
return($result) if $result; |
821 |
|
|
@CopyBuf = (); |
822 |
|
|
$CBufLen = 0; |
823 |
|
|
} |
824 |
|
|
} |
825 |
|
|
|
826 |
dpavlin |
1.17 |
if (! $ok) { |
827 |
dpavlin |
1.2 |
printf STDERR "No end of input in UPDATE section\n" unless ($quiet); |
828 |
|
|
return(-2); |
829 |
|
|
} |
830 |
|
|
|
831 |
dpavlin |
1.17 |
if ($CBufLen) { |
832 |
|
|
print STDERR "@CopyBuf\n" if $debug; |
833 |
dpavlin |
1.6 |
$result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
834 |
dpavlin |
1.2 |
return($result) if $result; |
835 |
|
|
} |
836 |
dpavlin |
1.1 |
|
837 |
dpavlin |
1.2 |
return(0); |
838 |
dpavlin |
1.1 |
} |
839 |
|
|
|
840 |
dpavlin |
1.2 |
sub DoInsert |
841 |
dpavlin |
1.1 |
{ |
842 |
dpavlin |
1.6 |
my ($sconn, $inpf, $tabname) = @_; # (@_[0], @_[1], @_[2]); |
843 |
dpavlin |
1.1 |
|
844 |
dpavlin |
1.2 |
# only insert rows into tables that the slave wants |
845 |
|
|
if (! defined($Stables{$tabname})) { |
846 |
dpavlin |
1.17 |
print STDERR "Not configured to insert rows from table $tabname\n" unless $quiet; |
847 |
dpavlin |
1.2 |
while (<$inpf>) { |
848 |
dpavlin |
1.3 |
my $istring = $_; |
849 |
dpavlin |
1.2 |
$istring =~ s/\n//; |
850 |
|
|
last if ($istring eq '\.'); |
851 |
dpavlin |
1.1 |
} |
852 |
dpavlin |
1.2 |
return(0); |
853 |
|
|
} |
854 |
dpavlin |
1.1 |
|
855 |
dpavlin |
1.2 |
my $oidkey = ($Stables{$tabname}->[2] < 0) ? 1 : 0; |
856 |
|
|
|
857 |
|
|
my @CopyBuf = (); |
858 |
|
|
my $CBufLen = 0; |
859 |
|
|
my $CBufMax = 16 * 1024 * 1024; # max size of buf for copy |
860 |
|
|
|
861 |
|
|
my $istring; |
862 |
|
|
my $ok = 0; |
863 |
dpavlin |
1.17 |
while(<$inpf>) { |
864 |
|
|
if ($_ !~ /\n$/) { |
865 |
dpavlin |
1.2 |
printf STDERR "Invalid format\n" unless ($quiet); |
866 |
|
|
return(-2); |
867 |
|
|
} |
868 |
|
|
$istring = $_; |
869 |
|
|
$istring =~ s/\n//; |
870 |
dpavlin |
1.17 |
if ($istring eq '\.') { |
871 |
dpavlin |
1.2 |
$ok = 1; |
872 |
|
|
last; |
873 |
|
|
} |
874 |
|
|
|
875 |
|
|
# no key - copy |
876 |
|
|
push @CopyBuf, "$istring\n"; |
877 |
|
|
$CBufLen += length($istring); |
878 |
|
|
|
879 |
dpavlin |
1.17 |
if ($CBufLen >= $CBufMax) { |
880 |
dpavlin |
1.6 |
my $result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
881 |
dpavlin |
1.2 |
return($result) if $result; |
882 |
|
|
@CopyBuf = (); |
883 |
|
|
$CBufLen = 0; |
884 |
|
|
} |
885 |
|
|
} |
886 |
|
|
|
887 |
dpavlin |
1.17 |
if (! $ok) { |
888 |
dpavlin |
1.2 |
printf STDERR "No end of input in INSERT section\n" unless ($quiet); |
889 |
|
|
return(-2); |
890 |
|
|
} |
891 |
|
|
|
892 |
dpavlin |
1.17 |
if ($CBufLen) { |
893 |
|
|
print STDERR "@CopyBuf\n" if $debug; |
894 |
dpavlin |
1.6 |
my $result = DoCopy($sconn, $tabname, $oidkey, \@CopyBuf); |
895 |
dpavlin |
1.2 |
return($result) if $result; |
896 |
|
|
} |
897 |
|
|
|
898 |
|
|
return(0); |
899 |
|
|
} |
900 |
dpavlin |
1.1 |
|
901 |
|
|
|
902 |
dpavlin |
1.17 |
sub DoCopy { |
903 |
dpavlin |
1.6 |
my ($sconn, $tabname, $withoids, $CBuf) = @_; # (@_[0], @_[1], @_[2], @_[3]); |
904 |
dpavlin |
1.2 |
|
905 |
|
|
my $sql = "COPY \"$tabname\" " . (($withoids) ? "WITH OIDS " : '') . |
906 |
|
|
"FROM STDIN"; |
907 |
dpavlin |
1.6 |
my $result = $sconn->exec($sql); |
908 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COPY_IN) { |
909 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
910 |
dpavlin |
1.2 |
return(-1); |
911 |
|
|
} |
912 |
|
|
|
913 |
dpavlin |
1.17 |
foreach my $str (@{$CBuf}) { |
914 |
dpavlin |
1.6 |
$sconn->putline($str); |
915 |
dpavlin |
1.2 |
} |
916 |
|
|
|
917 |
dpavlin |
1.6 |
$sconn->putline("\\.\n"); |
918 |
dpavlin |
1.2 |
|
919 |
dpavlin |
1.17 |
if ($sconn->endcopy) { |
920 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
921 |
dpavlin |
1.2 |
return(-1); |
922 |
|
|
} |
923 |
|
|
|
924 |
|
|
return(0); |
925 |
dpavlin |
1.1 |
} |
926 |
|
|
|
927 |
|
|
|
928 |
|
|
# |
929 |
|
|
# Returns last SyncID applied on Slave |
930 |
|
|
# |
931 |
dpavlin |
1.17 |
sub GetSyncID { |
932 |
dpavlin |
1.6 |
my ($sconn) = @_; # (@_[0]); |
933 |
dpavlin |
1.2 |
|
934 |
dpavlin |
1.6 |
my $result = $sconn->exec("select max(syncid) from _RSERV_SLAVE_SYNC_"); |
935 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_TUPLES_OK) { |
936 |
dpavlin |
1.6 |
print STDERR $sconn->errorMessage unless ($quiet); |
937 |
dpavlin |
1.2 |
return(-1); |
938 |
|
|
} |
939 |
|
|
my @row = $result->fetchrow; |
940 |
dpavlin |
1.17 |
print STDERR "GetSyncID: ",($row[0] || 'null'),"\n" if ($debug); |
941 |
dpavlin |
1.2 |
return(undef) unless defined $row[0]; # null |
942 |
|
|
return($row[0]); |
943 |
dpavlin |
1.1 |
} |
944 |
|
|
|
945 |
|
|
# |
946 |
|
|
# Updates _RSERV_SYNC_ on Master with Slave SyncID |
947 |
|
|
# |
948 |
dpavlin |
1.17 |
sub SyncSyncID { |
949 |
dpavlin |
1.8 |
my ($mconn, $sserver, $syncid) = @_; # (@_[0], @_[1], @_[2]); |
950 |
dpavlin |
1.2 |
|
951 |
dpavlin |
1.6 |
my $result = $mconn->exec("BEGIN"); |
952 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
953 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
954 |
|
|
$mconn->exec("ROLLBACK"); |
955 |
dpavlin |
1.2 |
return(-1); |
956 |
|
|
} |
957 |
|
|
|
958 |
dpavlin |
1.6 |
$result = $mconn->exec("select synctime, status from _RSERV_SYNC_" . |
959 |
dpavlin |
1.8 |
" where server = $sserver AND syncid = $syncid" . |
960 |
dpavlin |
1.2 |
" for update"); |
961 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_TUPLES_OK) { |
962 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
963 |
|
|
$mconn->exec("ROLLBACK"); |
964 |
dpavlin |
1.2 |
return(-1); |
965 |
|
|
} |
966 |
|
|
my @row = $result->fetchrow; |
967 |
dpavlin |
1.17 |
if (! defined $row[0]) { |
968 |
dpavlin |
1.8 |
printf STDERR "No SyncID $syncid found for server $sserver\n" unless ($quiet); |
969 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
970 |
dpavlin |
1.2 |
return(0); |
971 |
|
|
} |
972 |
dpavlin |
1.17 |
if ($row[1] > 0) { |
973 |
dpavlin |
1.2 |
printf STDERR "SyncID $syncid for server ". |
974 |
dpavlin |
1.8 |
"$sserver already updated\n" unless ($quiet); |
975 |
dpavlin |
1.6 |
$mconn->exec("ROLLBACK"); |
976 |
dpavlin |
1.2 |
return(0); |
977 |
|
|
} |
978 |
dpavlin |
1.6 |
$result = $mconn->exec("update _RSERV_SYNC_" . |
979 |
dpavlin |
1.2 |
" set synctime = now(), status = 1" . |
980 |
dpavlin |
1.8 |
" where server = $sserver AND syncid = $syncid"); |
981 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
982 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
983 |
|
|
$mconn->exec("ROLLBACK"); |
984 |
dpavlin |
1.2 |
return(-1); |
985 |
|
|
} |
986 |
dpavlin |
1.6 |
$result = $mconn->exec("delete from _RSERV_SYNC_" . |
987 |
dpavlin |
1.8 |
" where server = $sserver AND syncid < $syncid"); |
988 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
989 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
990 |
|
|
$mconn->exec("ROLLBACK"); |
991 |
dpavlin |
1.2 |
return(-1); |
992 |
|
|
} |
993 |
|
|
|
994 |
dpavlin |
1.6 |
$result = $mconn->exec("COMMIT"); |
995 |
dpavlin |
1.17 |
if ($result->resultStatus ne PGRES_COMMAND_OK) { |
996 |
dpavlin |
1.6 |
print STDERR $mconn->errorMessage unless ($quiet); |
997 |
|
|
$mconn->exec("ROLLBACK"); |
998 |
dpavlin |
1.2 |
return(-1); |
999 |
|
|
} |
1000 |
|
|
|
1001 |
|
|
return(1); |
1002 |
dpavlin |
1.1 |
} |
1003 |
|
|
|
1004 |
dpavlin |
1.11 |
# stuff moved from perl scripts for better re-use |
1005 |
|
|
|
1006 |
|
|
sub Rollback { |
1007 |
|
|
my $conn = shift @_; |
1008 |
|
|
|
1009 |
dpavlin |
1.15 |
print STDERR $conn->errorMessage unless ($quiet); |
1010 |
dpavlin |
1.11 |
$conn->exec("ROLLBACK"); |
1011 |
|
|
} |
1012 |
|
|
|
1013 |
|
|
sub RollbackAndQuit { |
1014 |
|
|
my $conn = shift @_; |
1015 |
|
|
|
1016 |
|
|
Rollback($conn); |
1017 |
|
|
exit (-1); |
1018 |
|
|
} |
1019 |
|
|
|
1020 |
|
|
sub Connect { |
1021 |
|
|
my $info = shift @_; |
1022 |
|
|
|
1023 |
|
|
print("Connecting to $info\n") if ($debug || $verbose); |
1024 |
|
|
my $conn = Pg::connectdb($info); |
1025 |
|
|
if ($conn->status != PGRES_CONNECTION_OK) { |
1026 |
dpavlin |
1.17 |
die "Failed opening $info"; |
1027 |
dpavlin |
1.11 |
} |
1028 |
|
|
return $conn; |
1029 |
|
|
} |
1030 |
|
|
|
1031 |
|
|
sub Exec { |
1032 |
dpavlin |
1.15 |
my $conn = shift || die "Exec needs connection!"; |
1033 |
|
|
my $sql = shift || die "Exec needs SQL statement!"; |
1034 |
|
|
# used to return error code if no tuples are retured |
1035 |
|
|
my $return_code = shift; |
1036 |
|
|
|
1037 |
|
|
if ($debug) { |
1038 |
|
|
# re-format SQL in one line (for nicer output) |
1039 |
|
|
$sql =~ s/[\s\n\r]+/ /gs; |
1040 |
|
|
print STDERR "Exec: $sql\n"; |
1041 |
|
|
} |
1042 |
dpavlin |
1.11 |
my $result = $conn->exec($sql); |
1043 |
dpavlin |
1.15 |
if ($result->resultStatus eq PGRES_COMMAND_OK) { |
1044 |
dpavlin |
1.17 |
return $result; |
1045 |
dpavlin |
1.15 |
} elsif ($result->resultStatus eq PGRES_TUPLES_OK) { |
1046 |
|
|
print STDERR "Returned ",$result->ntuples," tuples\n" if ($debug); |
1047 |
|
|
return $result; |
1048 |
|
|
} else { |
1049 |
|
|
if (defined($return_code)) { |
1050 |
|
|
print STDERR "ERROR: ",$conn->errorMessage,"\n" unless ($quiet); |
1051 |
|
|
return($return_code); |
1052 |
|
|
} else { |
1053 |
|
|
RollbackAndQuit($conn) |
1054 |
|
|
} |
1055 |
|
|
} |
1056 |
dpavlin |
1.11 |
} |
1057 |
|
|
|
1058 |
|
|
sub Exec2 { |
1059 |
|
|
my $mconn = shift @_; |
1060 |
|
|
my $sconn = shift @_; |
1061 |
|
|
my $sql = shift @_; |
1062 |
|
|
|
1063 |
|
|
my $result = $mconn->exec($sql); |
1064 |
|
|
RollbackAndQuit($mconn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
1065 |
|
|
$result = $sconn->exec($sql); |
1066 |
|
|
RollbackAndQuit($sconn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
1067 |
dpavlin |
1.15 |
# XXX TODO: return results?! |
1068 |
dpavlin |
1.12 |
} |
1069 |
|
|
|
1070 |
dpavlin |
1.17 |
sub ExecFatch { |
1071 |
|
|
my $conn = shift || die "ExecFatch need conn!"; |
1072 |
|
|
my $sql = shift || die "ExecFatch need SQL!"; |
1073 |
|
|
|
1074 |
|
|
print STDERR "ExecFatch: $sql\n" if ($debug); |
1075 |
|
|
|
1076 |
|
|
my $result = $conn->exec($sql); |
1077 |
|
|
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_TUPLES_OK); |
1078 |
|
|
|
1079 |
|
|
print STDERR "Returned ",$result->ntuples," tuples\n" if ($debug); |
1080 |
|
|
|
1081 |
|
|
my @row = $result->fetchrow; |
1082 |
|
|
print STDERR "DATA: ",join(",",@row),"\n" if ($debug); |
1083 |
|
|
return @row; |
1084 |
|
|
} |
1085 |
|
|
|
1086 |
|
|
sub ExecDebug { |
1087 |
|
|
my $conn = shift || die "ExecDebug need conn!"; |
1088 |
|
|
my $sql = shift || die "ExecDebug need SQL!"; |
1089 |
|
|
|
1090 |
|
|
print STDERR "ExecDebug: $sql\n" if ($debug); |
1091 |
|
|
|
1092 |
|
|
my $result = $conn->exec($sql); |
1093 |
|
|
RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_TUPLES_OK); |
1094 |
|
|
|
1095 |
|
|
print STDERR "Returned ",$result->ntuples," tuples\n" if ($debug); |
1096 |
|
|
|
1097 |
|
|
while (my @row = $result->fetchrow) { |
1098 |
|
|
print STDERR "DATA: ",join(",",@row),"\n" if ($debug); |
1099 |
|
|
} |
1100 |
|
|
return $result->ntuples; |
1101 |
|
|
} |
1102 |
dpavlin |
1.12 |
sub MkInfo { |
1103 |
|
|
my $db = shift || die "need database name!"; |
1104 |
|
|
my $host = shift; |
1105 |
|
|
my $port = shift; |
1106 |
|
|
my $user = shift; |
1107 |
|
|
my $password = shift; |
1108 |
|
|
|
1109 |
|
|
my $info = "dbname=$db"; |
1110 |
|
|
$info = "$info host=$host" if (defined($host)); |
1111 |
|
|
$info = "$info port=$port" if (defined($port)); |
1112 |
|
|
$info = "$info user=$user" if (defined($user)); |
1113 |
|
|
$info = "$info password=$password" if (defined($password)); |
1114 |
|
|
|
1115 |
|
|
return $info; |
1116 |
dpavlin |
1.11 |
} |
1117 |
|
|
|
1118 |
dpavlin |
1.1 |
1; |