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restore from DB2 binary backup support

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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@11084 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
lissav 2011-11-30 19:00:27 +00:00
parent da5da909c6
commit e172ed8f8d
1 changed files with 101 additions and 2 deletions
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103
xCAT-client/sbin/restorexCATdb
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@ -24,6 +24,7 @@ use strict;
restorexCATdb -p <directory containing db restore .csv files>
restorexCATdb -b -p <directory binary database backup>
=cut
@ -33,7 +34,22 @@ use strict;
my $rc = 0;
&parse_args;
if ($::BINARY) { # not using xCAT to dump, using the database utility
my $DBname = xCAT::Utils->get_DBName;
if ($DBname eq "DB2") {
$rc=&DB2_binrestore;
if ($rc == 0) {
xCAT::MsgUtils->message("I", "Restore Complete. You can now restart the daemons.");
} else {
xCAT::MsgUtils->message("E", "Restore Failed.");
}
exit $rc;
} else {
xCAT::MsgUtils->message("E",
"Binary restore (-b) is only supported for DB2");
exit 1;
}
}
# read all the *.csv files from the input directory and restore the database
opendir DIRPATH, $::PATH;
if ($? != 0)
@ -120,14 +136,16 @@ sub parse_args
{
my $msg;
my $usagemsg =
" restorexCATdb -h \n restorexCATdb -v \n restorexCATdb [-a] [-V] <-p> [path to restore .csv files]\n";
" restorexCATdb -h \n restorexCATdb -v \n restorexCATdb [-a] [-V] <-p> [path to restore .csv files]\n restorexCATdb -b [-V] <-t> [timestamp on restore backup file] <-p> [path to restore backup file]";
Getopt::Long::Configure("posix_default");
Getopt::Long::Configure("no_gnu_compat");
Getopt::Long::Configure("bundling");
if (
!GetOptions(
'a|all' => \$::ALL,
'b|binary' => \$::BINARY,
'p|path=s' => \$::PATH,
't|timestamp=s' => \$::TIMESTAMP,
'h|help' => \$::HELP,
'V|verbose' => \$::VERBOSEREST,
'v|version' => \$::VERSION
@ -164,4 +182,85 @@ sub parse_args
}
}
#-----------------------------------------------------------------------------
=head3 DB2_binrestore
Uses the DB2 Database supplied restore utility to restore the database
=cut
#-----------------------------------------------------------------------------
sub DB2_binrestore
{
my $msg;
my $rc=0;
if (!($::TIMESTAMP)){
xCAT::MsgUtils->message("E", "To restore from a binary backup, the timestamp of the backup must be provided with the -t option.");
return 1;
}
# check to see if xcatd running. Cannot restore if it is
my $cmd = "ps -ef | grep xcatd";
my @output=xCAT::Utils->runcmd($cmd, -1);
if ($::RUNCMD_RC == 0) { # found something
if (grep(/xcatd: SSL listener/, @output)) { # xcatd running
xCAT::MsgUtils->message("E", "xcatd is still accessing the database. All applications accessing the DB2 database must be stopped before you can restore.");
return 1;
}
}
# get password from cfgloc
my $cmd="cat /etc/xcat/cfgloc";
my $info=xCAT::Utils->runcmd($cmd, -1);
if ($::RUNCMD_RC != 0) {
xCAT::MsgUtils->message("E", "Cannot read /etc/xcat/cfgloc.");
return 1;
}
chomp($info);
my ($db,$inst,$pw) = split(/\|/, $info);
# Hopefully nothing else is accessing the database, so try restore
$cmd="db2 restore db xcatdb user xcatdb using $pw from $::PATH taken at $::TIMESTAMP";
$rc = &rundb2cmd($cmd); # must su to xcatdb
if ($rc != 0)
{
xCAT::MsgUtils->message("E", " $cmd error.");
return 1;
}
# Now roll forward any tranactions since the backup
$cmd="db2 rollforward database xcatdb to end of logs and complete";
$rc = &rundb2cmd($cmd); # must su to xcatdb
if ($rc != 0)
{
xCAT::MsgUtils->message("E", " $cmd error.");
return 1;
}
return 0;
}
#-----------------------------------------------------------------------------
=head3 rundb2cmd
Run a commmand as the xcatdb instance id
Input: command
=cut
#-----------------------------------------------------------------------------
sub rundb2cmd
{
my $orgcmd = shift;
my $rc = 0;
my $cmd = "\'";
$cmd .= $orgcmd;
$cmd .= ' 2>&1';
$cmd .= "\'";
system("su - xcatdb -c $cmd");
if ($? > 0) # error
{
$rc = $? >> 8;
}
return ($rc);
}