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#!/usr/bin/perl |
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# MasterInit |
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# Vadim Mikheev, (c) 2000, PostgreSQL Inc. |
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|
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eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' |
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& eval 'exec perl -S $0 $argv:q' |
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if 0; |
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|
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use Pg; |
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use Getopt::Long; |
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|
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$| = 1; |
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|
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$result = GetOptions("debug!", "verbose!", "help", |
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"host=s", "user=s", "password=s"); |
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|
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my $debug = $opt_debug || 0; |
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my $verbose = $opt_verbose || 0; |
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|
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if (defined($opt_help) || (scalar(@ARGV) < 1)) { |
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print "Usage: $0 --host=name --user=name --password=string masterdb\n"; |
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exit ((scalar(@ARGV) < 1)? 1:0); |
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} |
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|
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my $module_filename = '$libdir/rserv'; |
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|
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my $master = $ARGV[0] || "master"; |
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|
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my $minfo = "dbname=$master"; |
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$minfo = "$minfo host=$opt_host" if (defined($opt_host)); |
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$minfo = "$minfo user=$opt_user" if (defined($opt_user)); |
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$minfo = "$minfo password=$opt_password" if (defined($opt_password)); |
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|
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sub RollbackAndQuit { |
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$conn = shift @_; |
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|
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print STDERR "Error in query: ", $conn->errorMessage; |
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$conn->exec("ROLLBACK"); |
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exit (-1); |
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} |
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|
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my $conn = Pg::connectdb($minfo); |
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if ($conn->status != PGRES_CONNECTION_OK) { |
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print STDERR "Failed opening $minfo\n"; |
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exit 1; |
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} |
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|
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my $result = $conn->exec("BEGIN"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("set transaction isolation level serializable"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# List of slave servers |
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$result = $conn->exec("create table _RSERV_SERVERS_" . |
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" (server serial, host text, post int4, dbase text)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# List of replicated tables |
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$result = $conn->exec("create table _RSERV_TABLES_" . |
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" (tname name, cname name, reloid oid, key int4)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# Bookkeeping log for row replication |
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$result = $conn->exec("create table _RSERV_LOG_" . |
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" (reloid oid, logid int4, logtime timestamp, deleted int4, key text)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# This is to speedup lookup of deleted tuples |
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$result = $conn->exec("create index _RSERV_LOG_INDX_DLT_ID_ on _RSERV_LOG_ (deleted, logid)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# This is to speedup cleanup |
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$result = $conn->exec("create index _RSERV_LOG_INDX_TM_ID_ on _RSERV_LOG_ (logtime, logid)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# This is to speedup trigger and lookup of updated tuples |
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$result = $conn->exec("create index _RSERV_LOG_INDX_REL_KEY_ on _RSERV_LOG_ (reloid, key)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# Sync point for each slave server |
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$result = $conn->exec("create table _RSERV_SYNC_" . |
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" (server int4, syncid int4, synctime timestamp" . |
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", status int4, minid int4, maxid int4, active text)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("create index _RSERV_SYNC_INDX_SRV_ID_ on _RSERV_SYNC_ (server, syncid)"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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# Sync point reference numbers |
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$result = $conn->exec("create sequence _rserv_sync_seq_"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("CREATE FUNCTION _rserv_log_() RETURNS trigger" . |
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" AS '$module_filename' LANGUAGE 'c'"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("CREATE FUNCTION _rserv_sync_(int4) RETURNS int4" . |
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" AS '$module_filename' LANGUAGE 'c'"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("CREATE FUNCTION _rserv_debug_(int4) RETURNS int4" . |
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" AS '$module_filename' LANGUAGE 'c'"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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$result = $conn->exec("COMMIT"); |
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RollbackAndQuit($conn) if ($result->resultStatus ne PGRES_COMMAND_OK); |
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|
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exit (0); |
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