bscheck.in 3.98 KB
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#!/usr/bin/perl -w
#
# Copyright (c) 2013 University of Utah and the Flux Group.
# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
#
use strict;
use English;
use Getopt::Std;
use Date::Parse;

#
# Perform a consistency check of blockstore state.
#
sub usage()
{
    print STDERR "Usage: bscheck [-d]\n";
    print STDERR "   -h       This message\n";
    print STDERR "   -d       Print additional debug info\n";
    exit(-1);
}
my $optlist  = "dh";
my $debug = 0;

# Protos
sub fatal($);

#
# Configure variables
#
my $TB		 = "@prefix@";
my $BSCONTROL	 = "$TB/sbin/bscontrol";

#
# Testbed Support libraries
#
use lib "@prefix@/lib";
use libdb;
use Blockstore;
use Lease;
use Project;
use User;

#
# Turn off line buffering on output
#
$| = 1;

#
# Untaint the path
# 
$ENV{'PATH'} = "/bin:/sbin:/usr/bin:";

#
# Parse command arguments. Once we return from getopts, all that should be
# left are the required arguments.
#
my %options = ();
if (! getopts($optlist, \%options)) {
    usage();
}
if (defined($options{h})) {
    usage();
}
if (defined($options{d})) {
    $debug++;
}

if (!TBAdmin()) {
    fatal("Only admins can check the blockstores.");
}

#
# First check the database state.
#

# Blockstore_trees:
#
# Make sure all blockstore_trees entries have blockstores entries.
# They should exist and have roles based on hints:
#   SE: role=element
#   CS: role=compound
#   PS: role=partition
# Make sure the aggidx is correct for hints SE, CS, PS:
#   SE: should reference a blockstore with role=compound
#   CS: should be zero
#   PS: should reference an exported compound or element
# Make sure the sizes are correct:
#   CS: total_size should be <= to combined sizes of associated SEs
#   CS: total_size should be >= to combined sizes of associated PSs

# Blockstores:
#
# Check for unrepresented relationships:
#   all role=compound entries should have a blockstore_trees entry
#   all role=partition entries should have a blockstore_trees entry
#   it is NOT necessary for role=element entries to have b_t entries
# Partition elements should have project_leases entries
#   lease_idx is encoded in the bs_id
# Each type used should have at least one attribute in b_t_attributes
# All exported blockstores should have an entry in blockstore_state
#   remaining_capacity should be <= total_size
#   node_id and bs_id should match

# Blockstore_attributes:
#
# All entries should have corresponding blockstores entries

# Blockstore_type_attributes:
#
# Nothing

# Blockstore_state:
#
# All entries should have an exported blockstores entry

# Reserved_blockstores:
#
# Should have corresponding blockstores and virt_blockstores entries
# Experiment should be swapped in

# Leases:
#

#
# Then the storage server state. Get all pool and volume info from
# servers.
#

# Servers:
#
# All servers identified in the DB should be accessible
# All servers should have exported blockstores
#  those blockstores should have type attributes that are class=SAN

# Pools:
#
# All non-persistent blockstores should have a bs_id that matches a pool
# Available space should be <= size
# Size of pool should be >= combined size of allocated non-persist BSes

# Volumes:
#
# Should have corresponding blockstores

exit(0);

sub fatal($)
{
    my ($mesg) = $_[0];

    if (defined($lease) && $lease->GotLock()) {
	$lease->Unlock();
    }
    die("*** $0:\n".
	"    $mesg\n");
}