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support backup of DB2 using db2 backup facilities

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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@11082 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
This commit is contained in:
lissav 2011-11-30 13:53:32 +00:00
parent 2fe95cc682
commit 9a43f08d77
1 changed files with 119 additions and 1 deletions
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120
xCAT-client/sbin/dumpxCATdb
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@ -33,6 +33,25 @@ use strict;
my $rc = 0;
my $cmd;
&parse_args;
if ($::BINARY) { # not using xCAT to dump, using the database utility
my $DBname = xCAT::Utils->get_DBName;
if ($DBname eq "DB2") {
$rc=&DB2_bindump;
if ($rc == 0) {
xCAT::MsgUtils->message("I", "Backup Complete.");
} else {
xCAT::MsgUtils->message("I", "Backup Failed.");
}
exit $rc;
} else {
xCAT::MsgUtils->message("E",
"Binary dump (-b) is only supported for DB2");
exit 1;
}
}
# Dump using xCAT utilities
my @output = xCAT::Utils->runcmd("tabdump", 0);
if ($::RUNCMD_RC != 0)
{ # error
@ -111,13 +130,14 @@ sub parse_args
{
my $msg;
my $usagemsg =
" dumpxCATdb -h \n dumpxCATdb -v \n dumpxCATdb [-a] [-V] <-p> [path to dump directory]";
" dumpxCATdb -h \n dumpxCATdb -v \n dumpxCATdb [-a] [-V] <-p> [path to dump directory] \n dumpxCATdb -b [-V] <-p> [path to dump directory]";
Getopt::Long::Configure("posix_default");
Getopt::Long::Configure("no_gnu_compat");
Getopt::Long::Configure("bundling");
if (
!GetOptions(
'a|all' => \$::ALL,
'b|bin' => \$::BINARY,
'p|path=s' => \$::PATH,
'h|help' => \$::HELP,
'V|verbose' => \$::DUMPVERBOSE,
@ -160,3 +180,101 @@ sub parse_args
}
#-----------------------------------------------------------------------------
=head3 DB_bindump
Uses the DB2 Database supplied dump utility to backup the database
=cut
#-----------------------------------------------------------------------------
sub DB2_bindump
{
my $msg;
my $rc=0;
# check to see if they are setup to do an online dump
# Database has to have defined logretain RECOVERY and there
# must already been taken an offline backup.
my $cmd="db2 get database configuration for xcatdb > /tmp/db2output";
$rc = &rundb2cmd($cmd); # must su to xcatdb
if ($rc != 0)
{
xCAT::MsgUtils->message("E", " $cmd error.");
return 1;
}
# check to see if they setup log recover
$cmd = " egrep -i \"Log retain for recovery enabled\" /tmp/db2output";
my @output=xCAT::Utils->runcmd($cmd, -1);
if ($::RUNCMD_RC != 0) {
xCAT::MsgUtils->message("E", "Log retain for recovery enabled (LOGRETAIN) = RECOVERY must be set to perform ONLINE Backups and one ONLINE backup must have been taken. See xCAT DB2 documentation. The section - Backup/Restore the database with DB2 Commands.");
return 1;
} else { # check to see if LOGRETAIN is ON
if (!grep(/ = RECOVERY/, @output)) {
xCAT::MsgUtils->message("E", "Log retain for recovery enabled (LOGRETAIN) = RECOVERY must be set to perform ONLINE Backups and one ONLINE backup must have been taken. See xCAT DB2 documentation. The section - Backup/Restore the database with DB2 Commands.");
return 1;
}
}
# check to see if they have one backup
$cmd = " ls $::PATH";
@output=xCAT::Utils->runcmd($cmd, -1);
if ($::RUNCMD_RC != 0) {
xCAT::MsgUtils->message("E", "One ONLINE backup must have been taken and exist in $::PATH. See xCAT DB2 documentation. The section - Backup/Restore the database with DB2 Commands.");
return 1;
} else { # check to see if LOGRETAIN is ON
if (!grep(/XCATDB/, @output)) {
xCAT::MsgUtils->message("E", "One ONLINE backup must have been taken and exist in $::PATH. See xCAT DB2 documentation. The section - Backup/Restore the database with DB2 Commands.");
return 1;
}
}
# finally all checks ok, can take an ONLINE backup
# 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);
my $cmd=" db2 backup db xcatdb user xcatdb using $pw ONLINE to $::PATH";
$rc = &rundb2cmd($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);
}