/usr/sbin/amdump is in amanda-server 1:3.3.3-2ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 | #! /usr/bin/perl
# Copyright (c) 2010-2012 Zmanda Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Contact information: Zmanda Inc., 465 S. Mathilda Ave., Suite 300
# Sunnyvale, CA 94086, USA, or: http://www.zmanda.com
use lib '/usr/lib/amanda/perl';
use strict;
use warnings;
use Getopt::Long;
use POSIX qw(WIFEXITED WEXITSTATUS strftime);
use File::Glob qw( :glob );
use Amanda::Config qw( :init :getconf );
use Amanda::Util qw( :constants );
use Amanda::Logfile qw( :logtype_t log_add );
use Amanda::Debug qw( debug );
use Amanda::Paths;
##
# Main
sub usage {
my ($msg) = @_;
print STDERR <<EOF;
Usage: amdump <conf> [--no-taper] [--from-client] [--exact-match] [-o configoption]* [host/disk]*
EOF
print STDERR "$msg\n" if $msg;
exit 1;
}
Amanda::Util::setup_application("amdump", "server", $CONTEXT_DAEMON);
my $config_overrides = new_config_overrides($#ARGV+1);
my @config_overrides_opts;
my $opt_no_taper = 0;
my $opt_from_client = 0;
my $opt_exact_match = 0;
debug("Arguments: " . join(' ', @ARGV));
Getopt::Long::Configure(qw(bundling));
GetOptions(
'version' => \&Amanda::Util::version_opt,
'help|usage|?' => \&usage,
'no-taper' => \$opt_no_taper,
'from-client' => \$opt_from_client,
'exact-match' => \$opt_exact_match,
'o=s' => sub {
push @config_overrides_opts, "-o" . $_[1];
add_config_override_opt($config_overrides, $_[1]);
},
) or usage();
usage("No config specified") if (@ARGV < 1);
my $config_name = shift @ARGV;
set_config_overrides($config_overrides);
config_init($CONFIG_INIT_EXPLICIT_NAME, $config_name);
my ($cfgerr_level, @cfgerr_errors) = config_errors();
if ($cfgerr_level >= $CFGERR_WARNINGS) {
config_print_errors();
if ($cfgerr_level >= $CFGERR_ERRORS) {
die("errors processing config file");
}
}
Amanda::Util::finish_setup($RUNNING_AS_DUMPUSER);
# useful info for below
my @hostdisk = @ARGV;
my $logdir = getconf($CNF_LOGDIR);
my @now = localtime;
my $longdate = strftime "%a %b %e %H:%M:%S %Z %Y", @now;
my $timestamp = strftime "%Y%m%d%H%M%S", @now;
my $datestamp = strftime "%Y%m%d", @now;
my $starttime_locale_independent = strftime "%Y-%m-%d %H:%M:%S %Z", @now;
my $trace_log_filename = "$logdir/log";
my $amdump_log_filename_default = "$logdir/amdump";
my $amdump_log_filename = "$logdir/amdump.$timestamp";
my $exit_code = 0;
my $amdump_log = \*STDERR;
##
# subs for below
sub amdump_log {
print $amdump_log "amdump: ", @_, "\n";
}
sub check_exec {
my ($prog) = @_;
return if -x $prog;
log_add($L_ERROR, "Can't execute $prog");
}
sub run_subprocess {
my ($proc, @args) = @_;
check_exec($proc);
my $pid = POSIX::fork();
if ($pid == 0) {
my $null = POSIX::open("/dev/null", POSIX::O_RDWR);
POSIX::dup2($null, 0);
POSIX::dup2($null, 1);
POSIX::dup2(fileno($amdump_log), 2);
close($amdump_log);
exec $proc, @args;
die "Could not exec $proc: $!";
}
waitpid($pid, 0);
my $s = $? >> 8;
debug("$proc exited with code $s");
if ($?) {
if ($exit_code == 0) {
debug("ignoring failing exit code $s from $proc");
} else {
debug("recording failing exit code $s from $proc for amdump exit");
$exit_code = $s;
}
}
}
sub wait_for_hold {
my $holdfile = "$CONFIG_DIR/$config_name/hold";
if (-f $holdfile) {
debug("waiting for hold file '$holdfile' to be removed");
while (-f $holdfile) {
sleep(60);
}
}
}
sub bail_already_running {
my $msg = "An Amanda process is already running - please run amcleanup manually";
debug($msg);
amdump_log($msg);
# put together a fake logfile and send an amreport
my $fakelogfile = "$AMANDA_TMPDIR/fakelog.$$";
open(my $fakelog, ">", $fakelogfile)
or die("cannot open a fake log to send an report - situation is dire");
print $fakelog <<EOF;
INFO amdump amdump pid $$
START planner date $timestamp
START driver date $timestamp
ERROR amdump $msg
EOF
run_subprocess("$sbindir/amreport", $config_name, '--from-amdump', '-l', $fakelogfile, @config_overrides_opts);
unlink($fakelogfile);
# and we're done here
exit 1;
}
sub do_amcleanup {
return unless -f $amdump_log_filename_default || -f $trace_log_filename;
# logfiles are still around. First, try an amcleanup -p to see if
# the actual processes are already dead
debug("runing amcleanup -p");
run_subprocess("$sbindir/amcleanup", '-p', $config_name, @config_overrides_opts);
# and check again
return unless -f $amdump_log_filename_default || -f $trace_log_filename;
bail_already_running();
}
sub start_logfiles {
debug("beginning trace log");
# start the trace log by simply writing an INFO line to it
log_add($L_INFO, "amdump pid $$");
# but not so fast! What if another process has also appended such a line?
open(my $tl, "<", $trace_log_filename)
or die("could not open trace log file '$trace_log_filename': $!");
if (<$tl> !~ /^INFO amdump amdump pid $$/) {
# we didn't get there first, so bail out
debug("another amdump raced with this one, and won");
bail_already_running();
}
close($tl);
# redirect the amdump_log to the proper filename instead of stderr
# note that perl will overwrite STDERR if we don't set $amdump_log to
# undef first.. stupid perl.
debug("beginning amdump log");
$amdump_log = undef;
# Must be opened in append so that all subprocess can write to it.
open($amdump_log, ">>", $amdump_log_filename)
or die("could not open amdump log file '$amdump_log_filename': $!");
unlink $amdump_log_filename_default;
symlink $amdump_log_filename, $amdump_log_filename_default;
}
sub planner_driver_pipeline {
my $planner = "$amlibexecdir/planner";
my $driver = "$amlibexecdir/driver";
my @no_taper = $opt_no_taper? ('--no-taper'):();
my @from_client = $opt_from_client? ('--from-client'):();
my @exact_match = $opt_exact_match? ('--exact-match'):();
check_exec($planner);
check_exec($driver);
# Perl's open3 is an embarassment to the language. We'll do this manually.
debug("invoking planner | driver");
my ($rpipe, $wpipe) = POSIX::pipe();
my $pl_pid = POSIX::fork();
if ($pl_pid == 0) {
## child
my $null = POSIX::open("/dev/null", POSIX::O_RDWR);
POSIX::dup2($null, 0);
POSIX::close($null);
POSIX::dup2($wpipe, 1);
POSIX::close($rpipe);
POSIX::close($wpipe);
POSIX::dup2(fileno($amdump_log), 2);
close($amdump_log);
exec $planner,
# note that @no_taper must follow --starttime
$config_name, '--starttime', $timestamp, @no_taper, @from_client, @exact_match, @config_overrides_opts, @hostdisk;
die "Could not exec $planner: $!";
}
debug(" planner: $pl_pid");
my $dr_pid = POSIX::fork();
if ($dr_pid == 0) {
## child
my $null = POSIX::open("/dev/null", POSIX::O_RDWR);
POSIX::dup2($rpipe, 0);
POSIX::close($rpipe);
POSIX::close($wpipe);
POSIX::dup2(fileno($amdump_log), 1); # driver does lots of logging to stdout..
POSIX::close($null);
POSIX::dup2(fileno($amdump_log), 2);
close($amdump_log);
exec $driver,
$config_name, @no_taper, @from_client, @config_overrides_opts;
die "Could not exec $driver: $!";
}
debug(" driver: $dr_pid");
POSIX::close($rpipe);
POSIX::close($wpipe);
my $first_bad_exit = 0;
for (my $i = 0; $i < 2; $i++) {
my $dead = wait();
die("Error waiting: $!") if ($dead <= 0);
my $s = $? >> 8;
debug("planner finished with exit code $s") if $dead == $pl_pid;
debug("driver finished with exit code $s") if $dead == $dr_pid;
my $exit = WIFEXITED($?)? WEXITSTATUS($?) : 1;
$first_bad_exit = $exit if ($exit && !$first_bad_exit)
}
$exit_code |= $first_bad_exit;
}
sub do_amreport {
debug("running amreport");
run_subprocess("$sbindir/amreport", $config_name, '--from-amdump', @config_overrides_opts);
}
sub roll_trace_logs {
my $t = getconf($CNF_USETIMESTAMPS)? $timestamp : $datestamp;
debug("renaming trace log");
Amanda::Logfile::log_rename($t)
}
sub trim_trace_logs {
debug("trimming old trace logs");
run_subprocess("$amlibexecdir/amtrmlog", $config_name, @config_overrides_opts);
}
sub trim_indexes {
debug("trimming old indexes");
run_subprocess("$amlibexecdir/amtrmidx", $config_name, @config_overrides_opts);
}
sub roll_amdump_logs {
debug("renaming amdump log and trimming old amdump logs (beyond tapecycle+2)");
unlink "$amdump_log_filename_default.1";
rename $amdump_log_filename_default, "$amdump_log_filename_default.1";
# keep the latest tapecycle files.
my @files = sort {-M $b <=> -M $a} grep { !/^\./ && -f "$_"} <$logdir/amdump.*>;
my $days = getconf($CNF_TAPECYCLE) + 2;
for (my $i = $days-1; $i >= 1; $i--) {
my $a = pop @files;
}
foreach my $name (@files) {
unlink $name;
amdump_log("unlink $name");
}
}
# now do the meat of the amdump work; these operations are ported directly
# from the old amdump.sh script
# wait for $confdir/hold to disappear
wait_for_hold();
# look for a current logfile, and if found run amcleanup -p, and if that fails
# bail out
do_amcleanup();
my $crtl_c = 0;
$SIG{INT} = \&interrupt;
sub interrupt {
$crtl_c = 1;
}
# start up the log file
start_logfiles();
# amstatus needs a lot of forms of the time, I guess
amdump_log("start at $longdate");
amdump_log("datestamp $datestamp");
amdump_log("starttime $timestamp");
amdump_log("starttime-locale-independent $starttime_locale_independent");
# run the planner and driver, the one piped to the other
planner_driver_pipeline();
if ($crtl_c == 1) {
print "Caught a ctrl-c\n";
log_add($L_FATAL, "amdump killed by ctrl-c");
debug("Caught a ctrl-c");
$exit_code = 1;
}
$SIG{INT} = 'DEFAULT';
my $end_longdate = strftime "%a %b %e %H:%M:%S %Z %Y", localtime;
amdump_log("end at $end_longdate");
# send the dump report
do_amreport();
# do some house-keeping
roll_trace_logs();
trim_trace_logs();
trim_indexes();
roll_amdump_logs();
debug("exiting with code $exit_code");
exit($exit_code);
|