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Commit | Line | Data |
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c0bbd038 DM |
1 | package PVE::HA::Manager; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
c4a221bc | 5 | use Digest::MD5 qw(md5_base64); |
c0bbd038 DM |
6 | |
7 | use Data::Dumper; | |
c142ebc9 | 8 | use PVE::Tools; |
a89ff919 | 9 | use PVE::HA::Tools ':exit_codes'; |
c0bbd038 DM |
10 | use PVE::HA::NodeStatus; |
11 | ||
ceac1930 | 12 | my $fence_delay = 60; |
5385a606 | 13 | |
c0bbd038 | 14 | sub new { |
8f0bb968 | 15 | my ($this, $haenv) = @_; |
c0bbd038 DM |
16 | |
17 | my $class = ref($this) || $this; | |
18 | ||
8f0bb968 DM |
19 | my $ms = $haenv->read_manager_status(); |
20 | ||
21 | $ms->{master_node} = $haenv->nodename(); | |
22 | ||
23 | my $ns = PVE::HA::NodeStatus->new($haenv, $ms->{node_status} || {}); | |
24 | ||
59fd7207 DM |
25 | # fixme: use separate class PVE::HA::ServiceStatus |
26 | my $ss = $ms->{service_status} || {}; | |
27 | ||
c0bbd038 | 28 | my $self = bless { |
8f0bb968 DM |
29 | haenv => $haenv, |
30 | ms => $ms, # master status | |
31 | ns => $ns, # PVE::HA::NodeStatus | |
59fd7207 | 32 | ss => $ss, # service status |
c0bbd038 DM |
33 | }, $class; |
34 | ||
35 | return $self; | |
36 | } | |
37 | ||
d84da043 DM |
38 | sub cleanup { |
39 | my ($self) = @_; | |
40 | ||
41 | # todo: ? | |
42 | } | |
43 | ||
8f0bb968 | 44 | sub flush_master_status { |
c0bbd038 DM |
45 | my ($self) = @_; |
46 | ||
59fd7207 | 47 | my ($haenv, $ms, $ns, $ss) = ($self->{haenv}, $self->{ms}, $self->{ns}, $self->{ss}); |
c0bbd038 | 48 | |
8f0bb968 | 49 | $ms->{node_status} = $ns->{status}; |
59fd7207 | 50 | $ms->{service_status} = $ss; |
d2f612cf DM |
51 | $ms->{timestamp} = $haenv->get_time(); |
52 | ||
8f0bb968 DM |
53 | $haenv->write_manager_status($ms); |
54 | } | |
c0bbd038 | 55 | |
f7ccd1b3 | 56 | sub select_service_node { |
270d4406 | 57 | my ($groups, $online_node_usage, $service_conf, $current_node, $try_next) = @_; |
f7ccd1b3 | 58 | |
e0a56314 | 59 | my $group = { 'nodes' => { $service_conf->{node} => 1 } }; # default group |
abc920b4 | 60 | |
270d4406 DM |
61 | $group = $groups->{ids}->{$service_conf->{group}} if $service_conf->{group} && |
62 | $groups->{ids}->{$service_conf->{group}}; | |
abc920b4 DM |
63 | |
64 | my $pri_groups = {}; | |
65 | my $group_members = {}; | |
e0a56314 | 66 | foreach my $entry (keys %{$group->{nodes}}) { |
abc920b4 DM |
67 | my ($node, $pri) = ($entry, 0); |
68 | if ($entry =~ m/^(\S+):(\d+)$/) { | |
69 | ($node, $pri) = ($1, $2); | |
70 | } | |
270d4406 | 71 | next if !defined($online_node_usage->{$node}); # offline |
abc920b4 DM |
72 | $pri_groups->{$pri}->{$node} = 1; |
73 | $group_members->{$node} = $pri; | |
74 | } | |
f7ccd1b3 | 75 | |
270d4406 | 76 | |
abc920b4 DM |
77 | # add non-group members to unrestricted groups (priority -1) |
78 | if (!$group->{restricted}) { | |
79 | my $pri = -1; | |
270d4406 | 80 | foreach my $node (keys %$online_node_usage) { |
abc920b4 DM |
81 | next if defined($group_members->{$node}); |
82 | $pri_groups->{$pri}->{$node} = 1; | |
83 | $group_members->{$node} = -1; | |
84 | } | |
85 | } | |
86 | ||
270d4406 | 87 | |
abc920b4 DM |
88 | my @pri_list = sort {$b <=> $a} keys %$pri_groups; |
89 | return undef if !scalar(@pri_list); | |
270d4406 | 90 | |
abc920b4 DM |
91 | if (!$try_next && $group->{nofailback} && defined($group_members->{$current_node})) { |
92 | return $current_node; | |
93 | } | |
94 | ||
95 | # select node from top priority node list | |
96 | ||
97 | my $top_pri = $pri_list[0]; | |
98 | ||
c142ebc9 DM |
99 | my @nodes = sort { |
100 | $online_node_usage->{$a} <=> $online_node_usage->{$b} || $a cmp $b | |
101 | } keys %{$pri_groups->{$top_pri}}; | |
abc920b4 DM |
102 | |
103 | my $found; | |
104 | for (my $i = scalar(@nodes) - 1; $i >= 0; $i--) { | |
105 | my $node = $nodes[$i]; | |
106 | if ($node eq $current_node) { | |
107 | $found = $i; | |
108 | last; | |
109 | } | |
110 | } | |
111 | ||
abc920b4 DM |
112 | if ($try_next) { |
113 | ||
114 | if (defined($found) && ($found < (scalar(@nodes) - 1))) { | |
115 | return $nodes[$found + 1]; | |
116 | } else { | |
117 | return $nodes[0]; | |
118 | } | |
119 | ||
120 | } else { | |
121 | ||
122 | return $nodes[$found] if defined($found); | |
123 | ||
124 | return $nodes[0]; | |
125 | ||
126 | } | |
f7ccd1b3 DM |
127 | } |
128 | ||
c4a221bc DM |
129 | my $uid_counter = 0; |
130 | ||
d55aa611 DM |
131 | sub compute_new_uuid { |
132 | my ($state) = @_; | |
133 | ||
134 | $uid_counter++; | |
135 | return md5_base64($state . $$ . time() . $uid_counter); | |
136 | } | |
137 | ||
618fbeda DM |
138 | my $valid_service_states = { |
139 | stopped => 1, | |
140 | request_stop => 1, | |
141 | started => 1, | |
142 | fence => 1, | |
143 | migrate => 1, | |
b0fdf86a | 144 | relocate => 1, |
9c7d068b | 145 | freeze => 1, |
618fbeda DM |
146 | error => 1, |
147 | }; | |
148 | ||
270d4406 DM |
149 | sub recompute_online_node_usage { |
150 | my ($self) = @_; | |
151 | ||
152 | my $online_node_usage = {}; | |
153 | ||
154 | my $online_nodes = $self->{ns}->list_online_nodes(); | |
155 | ||
156 | foreach my $node (@$online_nodes) { | |
157 | $online_node_usage->{$node} = 0; | |
158 | } | |
159 | ||
160 | foreach my $sid (keys %{$self->{ss}}) { | |
161 | my $sd = $self->{ss}->{$sid}; | |
162 | my $state = $sd->{state}; | |
163 | if (defined($online_node_usage->{$sd->{node}})) { | |
164 | if (($state eq 'started') || ($state eq 'request_stop') || | |
9c7d068b | 165 | ($state eq 'fence') || ($state eq 'freeze') || ($state eq 'error')) { |
270d4406 DM |
166 | $online_node_usage->{$sd->{node}}++; |
167 | } elsif (($state eq 'migrate') || ($state eq 'relocate')) { | |
168 | $online_node_usage->{$sd->{target}}++; | |
169 | } elsif ($state eq 'stopped') { | |
170 | # do nothing | |
171 | } else { | |
172 | die "should not be reached"; | |
173 | } | |
174 | } | |
175 | } | |
176 | ||
177 | $self->{online_node_usage} = $online_node_usage; | |
178 | } | |
179 | ||
4e01bc86 DM |
180 | my $change_service_state = sub { |
181 | my ($self, $sid, $new_state, %params) = @_; | |
182 | ||
183 | my ($haenv, $ss) = ($self->{haenv}, $self->{ss}); | |
184 | ||
185 | my $sd = $ss->{$sid} || die "no such service '$sid"; | |
186 | ||
187 | my $old_state = $sd->{state}; | |
e4ffb299 | 188 | my $old_node = $sd->{node}; |
4e01bc86 DM |
189 | |
190 | die "no state change" if $old_state eq $new_state; # just to be sure | |
191 | ||
618fbeda DM |
192 | die "invalid CRM service state '$new_state'\n" if !$valid_service_states->{$new_state}; |
193 | ||
e4ffb299 DM |
194 | foreach my $k (keys %$sd) { delete $sd->{$k}; }; |
195 | ||
196 | $sd->{state} = $new_state; | |
197 | $sd->{node} = $old_node; | |
198 | ||
199 | my $text_state = ''; | |
ba623362 | 200 | foreach my $k (sort keys %params) { |
4e01bc86 | 201 | my $v = $params{$k}; |
e4ffb299 DM |
202 | $text_state .= ", " if $text_state; |
203 | $text_state .= "$k = $v"; | |
4e01bc86 DM |
204 | $sd->{$k} = $v; |
205 | } | |
270d4406 DM |
206 | |
207 | $self->recompute_online_node_usage(); | |
208 | ||
d55aa611 | 209 | $sd->{uid} = compute_new_uuid($new_state); |
4e01bc86 | 210 | |
24678a59 TL |
211 | $text_state = " ($text_state)" if $text_state; |
212 | $haenv->log('info', "service '$sid': state changed from '${old_state}'" . | |
213 | " to '${new_state}'$text_state"); | |
4e01bc86 DM |
214 | }; |
215 | ||
9da84a0d TL |
216 | # after a node was fenced this recovers the service to a new node |
217 | my $recover_fenced_service = sub { | |
218 | my ($self, $sid, $cd) = @_; | |
219 | ||
220 | my ($haenv, $ss) = ($self->{haenv}, $self->{ss}); | |
221 | ||
222 | my $sd = $ss->{$sid}; | |
223 | ||
224 | if ($sd->{state} ne 'fence') { # should not happen | |
225 | $haenv->log('err', "cannot recover service '$sid' from fencing," . | |
226 | " wrong state '$sd->{state}'"); | |
227 | return; | |
228 | } | |
229 | ||
230 | my $fenced_node = $sd->{node}; # for logging purpose | |
231 | ||
232 | $self->recompute_online_node_usage(); # we want the most current node state | |
233 | ||
234 | my $recovery_node = select_service_node($self->{groups}, | |
235 | $self->{online_node_usage}, | |
236 | $cd, $sd->{node}); | |
237 | ||
238 | if ($recovery_node) { | |
239 | $haenv->log('info', "recover service '$sid' from fenced node " . | |
240 | "'$fenced_node' to node '$recovery_node'"); | |
241 | ||
242 | $haenv->steal_service($sid, $sd->{node}, $recovery_node); | |
243 | ||
244 | # $sd *is normally read-only*, fencing is the exception | |
245 | $cd->{node} = $sd->{node} = $recovery_node; | |
246 | &$change_service_state($self, $sid, 'started', node => $recovery_node); | |
247 | } else { | |
248 | # no node found, let the service in 'fence' state and try again | |
249 | $haenv->log('err', "recovering service '$sid' from fenced node " . | |
250 | "'$fenced_node' failed, no recovery node found"); | |
251 | } | |
252 | }; | |
253 | ||
9c7d068b | 254 | # read LRM status for all nodes |
c4a221bc | 255 | sub read_lrm_status { |
332170bd | 256 | my ($self) = @_; |
c4a221bc | 257 | |
9c7d068b | 258 | my $nodes = $self->{ns}->list_nodes(); |
c4a221bc DM |
259 | my $haenv = $self->{haenv}; |
260 | ||
9c7d068b DM |
261 | my $results = {}; |
262 | my $modes = {}; | |
332170bd | 263 | foreach my $node (@$nodes) { |
9c7d068b | 264 | my $lrm_status = $haenv->read_lrm_status($node); |
02ffd753 | 265 | $modes->{$node} = $lrm_status->{mode} || 'active'; |
9c7d068b DM |
266 | foreach my $uid (keys %{$lrm_status->{results}}) { |
267 | next if $results->{$uid}; # should not happen | |
268 | $results->{$uid} = $lrm_status->{results}->{$uid}; | |
c4a221bc DM |
269 | } |
270 | } | |
271 | ||
9c7d068b DM |
272 | |
273 | return ($results, $modes); | |
c4a221bc DM |
274 | } |
275 | ||
aa98a844 DM |
276 | # read new crm commands and save them into crm master status |
277 | sub update_crm_commands { | |
278 | my ($self) = @_; | |
279 | ||
280 | my ($haenv, $ms, $ns, $ss) = ($self->{haenv}, $self->{ms}, $self->{ns}, $self->{ss}); | |
281 | ||
282 | my $cmdlist = $haenv->read_crm_commands(); | |
283 | ||
284 | foreach my $cmd (split(/\n/, $cmdlist)) { | |
285 | chomp $cmd; | |
286 | ||
b0fdf86a DM |
287 | if ($cmd =~ m/^(migrate|relocate)\s+(\S+)\s+(\S+)$/) { |
288 | my ($task, $sid, $node) = ($1, $2, $3); | |
aa98a844 DM |
289 | if (my $sd = $ss->{$sid}) { |
290 | if (!$ns->node_is_online($node)) { | |
291 | $haenv->log('err', "crm command error - node not online: $cmd"); | |
292 | } else { | |
293 | if ($node eq $sd->{node}) { | |
294 | $haenv->log('info', "ignore crm command - service already on target node: $cmd"); | |
295 | } else { | |
296 | $haenv->log('info', "got crm command: $cmd"); | |
b0fdf86a | 297 | $ss->{$sid}->{cmd} = [ $task, $node]; |
aa98a844 DM |
298 | } |
299 | } | |
300 | } else { | |
301 | $haenv->log('err', "crm command error - no such service: $cmd"); | |
302 | } | |
303 | ||
304 | } else { | |
305 | $haenv->log('err', "unable to parse crm command: $cmd"); | |
306 | } | |
307 | } | |
308 | ||
309 | } | |
310 | ||
8f0bb968 DM |
311 | sub manage { |
312 | my ($self) = @_; | |
c0bbd038 | 313 | |
59fd7207 | 314 | my ($haenv, $ms, $ns, $ss) = ($self->{haenv}, $self->{ms}, $self->{ns}, $self->{ss}); |
c0bbd038 | 315 | |
332170bd | 316 | $ns->update($haenv->get_node_info()); |
c79442f2 DM |
317 | |
318 | if (!$ns->node_is_online($haenv->nodename())) { | |
e5986717 | 319 | $haenv->log('info', "master seems offline"); |
c79442f2 DM |
320 | return; |
321 | } | |
322 | ||
9c7d068b | 323 | my ($lrm_results, $lrm_modes) = $self->read_lrm_status(); |
c4a221bc | 324 | |
f7ccd1b3 DM |
325 | my $sc = $haenv->read_service_config(); |
326 | ||
abc920b4 DM |
327 | $self->{groups} = $haenv->read_group_config(); # update |
328 | ||
f7ccd1b3 DM |
329 | # compute new service status |
330 | ||
331 | # add new service | |
cc32a8f3 | 332 | foreach my $sid (sort keys %$sc) { |
f7ccd1b3 | 333 | next if $ss->{$sid}; # already there |
cc32a8f3 | 334 | $haenv->log('info', "adding new service '$sid' on node '$sc->{$sid}->{node}'"); |
f7ccd1b3 | 335 | # assume we are running to avoid relocate running service at add |
d55aa611 DM |
336 | $ss->{$sid} = { state => 'started', node => $sc->{$sid}->{node}, |
337 | uid => compute_new_uuid('started') }; | |
f7ccd1b3 DM |
338 | } |
339 | ||
4e5764af DM |
340 | # remove stale service from manager state |
341 | foreach my $sid (keys %$ss) { | |
342 | next if $sc->{$sid}; | |
343 | $haenv->log('info', "removing stale service '$sid' (no config)"); | |
344 | delete $ss->{$sid}; | |
345 | } | |
346 | ||
aa98a844 DM |
347 | $self->update_crm_commands(); |
348 | ||
c79442f2 DM |
349 | for (;;) { |
350 | my $repeat = 0; | |
270d4406 DM |
351 | |
352 | $self->recompute_online_node_usage(); | |
f7ccd1b3 | 353 | |
c79442f2 DM |
354 | foreach my $sid (keys %$ss) { |
355 | my $sd = $ss->{$sid}; | |
356 | my $cd = $sc->{$sid} || { state => 'disabled' }; | |
f7ccd1b3 | 357 | |
9c7d068b | 358 | my $lrm_res = $sd->{uid} ? $lrm_results->{$sd->{uid}} : undef; |
a875fbe8 | 359 | |
c79442f2 DM |
360 | my $last_state = $sd->{state}; |
361 | ||
362 | if ($last_state eq 'stopped') { | |
363 | ||
abc920b4 | 364 | $self->next_state_stopped($sid, $cd, $sd, $lrm_res); |
f7ccd1b3 | 365 | |
c79442f2 | 366 | } elsif ($last_state eq 'started') { |
f7ccd1b3 | 367 | |
abc920b4 | 368 | $self->next_state_started($sid, $cd, $sd, $lrm_res); |
f7ccd1b3 | 369 | |
b0fdf86a | 370 | } elsif ($last_state eq 'migrate' || $last_state eq 'relocate') { |
f7ccd1b3 | 371 | |
8aaa0e36 | 372 | $self->next_state_migrate_relocate($sid, $cd, $sd, $lrm_res); |
f7ccd1b3 | 373 | |
c79442f2 | 374 | } elsif ($last_state eq 'fence') { |
f7ccd1b3 | 375 | |
21e37ed4 | 376 | # do nothing here - wait until fenced |
f7ccd1b3 | 377 | |
c79442f2 | 378 | } elsif ($last_state eq 'request_stop') { |
f7ccd1b3 | 379 | |
0df5b3dd | 380 | $self->next_state_request_stop($sid, $cd, $sd, $lrm_res); |
618fbeda | 381 | |
9c7d068b DM |
382 | } elsif ($last_state eq 'freeze') { |
383 | ||
384 | my $lrm_mode = $sd->{node} ? $lrm_modes->{$sd->{node}} : undef; | |
9c7d068b DM |
385 | # unfreeze |
386 | &$change_service_state($self, $sid, 'started') | |
02ffd753 | 387 | if $lrm_mode && $lrm_mode eq 'active'; |
9c7d068b | 388 | |
e88469ba DM |
389 | } elsif ($last_state eq 'error') { |
390 | ||
a2881965 | 391 | $self->next_state_error($sid, $cd, $sd, $lrm_res); |
e88469ba | 392 | |
a875fbe8 DM |
393 | } else { |
394 | ||
395 | die "unknown service state '$last_state'"; | |
618fbeda | 396 | } |
21e37ed4 | 397 | |
9c7d068b | 398 | my $lrm_mode = $sd->{node} ? $lrm_modes->{$sd->{node}} : undef; |
07adc6a6 DM |
399 | if ($lrm_mode && $lrm_mode eq 'restart') { |
400 | if (($sd->{state} eq 'started' || $sd->{state} eq 'stopped' || | |
401 | $sd->{state} eq 'request_stop')) { | |
402 | &$change_service_state($self, $sid, 'freeze'); | |
403 | } | |
9c7d068b | 404 | } |
07adc6a6 | 405 | |
c79442f2 | 406 | $repeat = 1 if $sd->{state} ne $last_state; |
f7ccd1b3 DM |
407 | } |
408 | ||
21e37ed4 DM |
409 | # handle fencing |
410 | my $fenced_nodes = {}; | |
411 | foreach my $sid (keys %$ss) { | |
412 | my $sd = $ss->{$sid}; | |
413 | next if $sd->{state} ne 'fence'; | |
414 | ||
415 | if (!defined($fenced_nodes->{$sd->{node}})) { | |
416 | $fenced_nodes->{$sd->{node}} = $ns->fence_node($sd->{node}) || 0; | |
417 | } | |
418 | ||
419 | next if !$fenced_nodes->{$sd->{node}}; | |
420 | ||
9da84a0d TL |
421 | # node fence was successful - recover service |
422 | &$recover_fenced_service($self, $sid, $sc->{$sid}); | |
21e37ed4 DM |
423 | } |
424 | ||
c79442f2 | 425 | last if !$repeat; |
f7ccd1b3 | 426 | } |
f7ccd1b3 | 427 | |
8f0bb968 | 428 | $self->flush_master_status(); |
c0bbd038 DM |
429 | } |
430 | ||
a875fbe8 DM |
431 | # functions to compute next service states |
432 | # $cd: service configuration data (read only) | |
433 | # $sd: service status data (read only) | |
434 | # | |
435 | # Note: use change_service_state() to alter state | |
436 | # | |
437 | ||
0df5b3dd DM |
438 | sub next_state_request_stop { |
439 | my ($self, $sid, $cd, $sd, $lrm_res) = @_; | |
440 | ||
441 | my $haenv = $self->{haenv}; | |
442 | my $ns = $self->{ns}; | |
443 | ||
444 | # check result from LRM daemon | |
445 | if ($lrm_res) { | |
446 | my $exit_code = $lrm_res->{exit_code}; | |
a89ff919 | 447 | if ($exit_code == SUCCESS) { |
0df5b3dd DM |
448 | &$change_service_state($self, $sid, 'stopped'); |
449 | return; | |
450 | } else { | |
33f01524 | 451 | $haenv->log('err', "service '$sid' stop failed (exit code $exit_code)"); |
0df5b3dd DM |
452 | &$change_service_state($self, $sid, 'error'); # fixme: what state? |
453 | return; | |
454 | } | |
455 | } | |
456 | ||
5385a606 | 457 | if ($ns->node_is_offline_delayed($sd->{node}, $fence_delay)) { |
0df5b3dd DM |
458 | &$change_service_state($self, $sid, 'fence'); |
459 | return; | |
460 | } | |
461 | } | |
462 | ||
8aaa0e36 DM |
463 | sub next_state_migrate_relocate { |
464 | my ($self, $sid, $cd, $sd, $lrm_res) = @_; | |
465 | ||
466 | my $haenv = $self->{haenv}; | |
467 | my $ns = $self->{ns}; | |
468 | ||
469 | # check result from LRM daemon | |
470 | if ($lrm_res) { | |
471 | my $exit_code = $lrm_res->{exit_code}; | |
542a9902 | 472 | my $req_state = $cd->{state} eq 'enabled' ? 'started' : 'request_stop'; |
a89ff919 | 473 | if ($exit_code == SUCCESS) { |
542a9902 | 474 | &$change_service_state($self, $sid, $req_state, node => $sd->{target}); |
8aaa0e36 | 475 | return; |
660596ce TL |
476 | } elsif ($exit_code == EWRONG_NODE) { |
477 | $haenv->log('err', "service '$sid' - migration failed: service" . | |
478 | " registered on wrong node!"); | |
479 | &$change_service_state($self, $sid, 'error'); | |
8aaa0e36 DM |
480 | } else { |
481 | $haenv->log('err', "service '$sid' - migration failed (exit code $exit_code)"); | |
542a9902 | 482 | &$change_service_state($self, $sid, $req_state, node => $sd->{node}); |
8aaa0e36 DM |
483 | return; |
484 | } | |
485 | } | |
486 | ||
5385a606 | 487 | if ($ns->node_is_offline_delayed($sd->{node}, $fence_delay)) { |
8aaa0e36 DM |
488 | &$change_service_state($self, $sid, 'fence'); |
489 | return; | |
490 | } | |
491 | } | |
492 | ||
493 | ||
a875fbe8 | 494 | sub next_state_stopped { |
abc920b4 | 495 | my ($self, $sid, $cd, $sd, $lrm_res) = @_; |
a875fbe8 DM |
496 | |
497 | my $haenv = $self->{haenv}; | |
e88469ba | 498 | my $ns = $self->{ns}; |
a875fbe8 | 499 | |
ff6f1c5c DM |
500 | if ($sd->{node} ne $cd->{node}) { |
501 | # this can happen if we fence a node with active migrations | |
502 | # hack: modify $sd (normally this should be considered read-only) | |
24678a59 | 503 | $haenv->log('info', "fixup service '$sid' location ($sd->{node} => $cd->{node})"); |
ff6f1c5c DM |
504 | $sd->{node} = $cd->{node}; |
505 | } | |
506 | ||
94b7ebe2 DM |
507 | if ($sd->{cmd}) { |
508 | my ($cmd, $target) = @{$sd->{cmd}}; | |
509 | delete $sd->{cmd}; | |
510 | ||
b0fdf86a | 511 | if ($cmd eq 'migrate' || $cmd eq 'relocate') { |
94b7ebe2 | 512 | if (!$ns->node_is_online($target)) { |
b0fdf86a | 513 | $haenv->log('err', "ignore service '$sid' $cmd request - node '$target' not online"); |
e88469ba | 514 | } elsif ($sd->{node} eq $target) { |
b0fdf86a | 515 | $haenv->log('info', "ignore service '$sid' $cmd request - service already on node '$target'"); |
94b7ebe2 | 516 | } else { |
9dad9c88 TL |
517 | &$change_service_state($self, $sid, $cmd, node => $sd->{node}, |
518 | target => $target); | |
9da84a0d | 519 | return; |
94b7ebe2 DM |
520 | } |
521 | } else { | |
522 | $haenv->log('err', "unknown command '$cmd' for service '$sid'"); | |
523 | } | |
35cbb764 | 524 | } |
94b7ebe2 | 525 | |
a875fbe8 | 526 | if ($cd->{state} eq 'disabled') { |
35cbb764 TL |
527 | # NOTE: do nothing here, the stop state is an exception as we do not |
528 | # process the LRM result here, thus the LRM always tries to stop the | |
529 | # service (protection for the case no CRM is active) | |
e88469ba | 530 | return; |
35cbb764 | 531 | } |
e88469ba DM |
532 | |
533 | if ($cd->{state} eq 'enabled') { | |
9da84a0d TL |
534 | # simply mark it started, if it's on the wrong node |
535 | # next_state_started will fix that for us | |
536 | &$change_service_state($self, $sid, 'started', node => $sd->{node}); | |
e88469ba | 537 | return; |
a875fbe8 | 538 | } |
e88469ba DM |
539 | |
540 | $haenv->log('err', "service '$sid' - unknown state '$cd->{state}' in service configuration"); | |
a875fbe8 DM |
541 | } |
542 | ||
543 | sub next_state_started { | |
abc920b4 | 544 | my ($self, $sid, $cd, $sd, $lrm_res) = @_; |
a875fbe8 DM |
545 | |
546 | my $haenv = $self->{haenv}; | |
ea4443cc | 547 | my $master_status = $self->{ms}; |
a875fbe8 DM |
548 | my $ns = $self->{ns}; |
549 | ||
550 | if (!$ns->node_is_online($sd->{node})) { | |
5385a606 DM |
551 | if ($ns->node_is_offline_delayed($sd->{node}, $fence_delay)) { |
552 | &$change_service_state($self, $sid, 'fence'); | |
553 | } | |
e88469ba DM |
554 | return; |
555 | } | |
a875fbe8 | 556 | |
e88469ba DM |
557 | if ($cd->{state} eq 'disabled') { |
558 | &$change_service_state($self, $sid, 'request_stop'); | |
559 | return; | |
560 | } | |
561 | ||
562 | if ($cd->{state} eq 'enabled') { | |
e88469ba DM |
563 | |
564 | if ($sd->{cmd}) { | |
565 | my ($cmd, $target) = @{$sd->{cmd}}; | |
566 | delete $sd->{cmd}; | |
567 | ||
b0fdf86a | 568 | if ($cmd eq 'migrate' || $cmd eq 'relocate') { |
e88469ba | 569 | if (!$ns->node_is_online($target)) { |
b0fdf86a | 570 | $haenv->log('err', "ignore service '$sid' $cmd request - node '$target' not online"); |
e88469ba | 571 | } elsif ($sd->{node} eq $target) { |
b0fdf86a | 572 | $haenv->log('info', "ignore service '$sid' $cmd request - service already on node '$target'"); |
e88469ba | 573 | } else { |
a3cb8dcb | 574 | $haenv->log('info', "$cmd service '$sid' to node '$target'"); |
b0fdf86a | 575 | &$change_service_state($self, $sid, $cmd, node => $sd->{node}, target => $target); |
e88469ba | 576 | } |
a875fbe8 | 577 | } else { |
e88469ba | 578 | $haenv->log('err', "unknown command '$cmd' for service '$sid'"); |
a875fbe8 DM |
579 | } |
580 | } else { | |
b0fdf86a | 581 | |
abc920b4 | 582 | my $try_next = 0; |
ea4443cc | 583 | if ($lrm_res) { |
e9e1cd68 TL |
584 | my $ec = $lrm_res->{exit_code}; |
585 | if ($ec == SUCCESS) { | |
586 | ||
587 | $master_status->{relocate_trial}->{$sid} = 0; | |
588 | ||
e9e1cd68 TL |
589 | } elsif ($ec == ERROR) { |
590 | # apply our relocate policy if we got ERROR from the LRM | |
ea4443cc TL |
591 | |
592 | my $try = $master_status->{relocate_trial}->{$sid} || 0; | |
593 | ||
594 | if ($try < $cd->{max_relocate}) { | |
595 | ||
596 | $try++; | |
e9e1cd68 TL |
597 | # tell select_service_node to relocate if possible |
598 | $try_next = 1; | |
ea4443cc TL |
599 | |
600 | $haenv->log('warning', "starting service $sid on node". | |
601 | " '$sd->{node}' failed, relocating service."); | |
602 | $master_status->{relocate_trial}->{$sid} = $try; | |
603 | ||
604 | } else { | |
605 | ||
606 | $haenv->log('err', "recovery policy for service". | |
607 | " $sid failed, entering error state!"); | |
608 | &$change_service_state($self, $sid, 'error'); | |
609 | return; | |
610 | ||
611 | } | |
e9e1cd68 TL |
612 | } else { |
613 | $haenv->log('err', "service '$sid' got unrecoverable error" . | |
614 | " (exit code $ec))"); | |
615 | # we have no save way out (yet) for other errors | |
616 | &$change_service_state($self, $sid, 'error'); | |
35cbb764 | 617 | return; |
ea4443cc | 618 | } |
abc920b4 DM |
619 | } |
620 | ||
270d4406 DM |
621 | my $node = select_service_node($self->{groups}, $self->{online_node_usage}, |
622 | $cd, $sd->{node}, $try_next); | |
abc920b4 | 623 | |
b0fdf86a | 624 | if ($node && ($sd->{node} ne $node)) { |
c0255b2c TL |
625 | if ($cd->{type} eq 'vm') { |
626 | $haenv->log('info', "migrate service '$sid' to node '$node' (running)"); | |
627 | &$change_service_state($self, $sid, 'migrate', node => $sd->{node}, target => $node); | |
628 | } else { | |
629 | $haenv->log('info', "relocate service '$sid' to node '$node'"); | |
630 | &$change_service_state($self, $sid, 'relocate', node => $sd->{node}, target => $node); | |
631 | } | |
b0fdf86a | 632 | } else { |
35cbb764 TL |
633 | # ensure service get started again if it went unexpected down |
634 | $sd->{uid} = compute_new_uuid($sd->{state}); | |
b0fdf86a | 635 | } |
a875fbe8 | 636 | } |
e88469ba DM |
637 | |
638 | return; | |
35cbb764 | 639 | } |
e88469ba DM |
640 | |
641 | $haenv->log('err', "service '$sid' - unknown state '$cd->{state}' in service configuration"); | |
a875fbe8 | 642 | } |
c0bbd038 | 643 | |
a2881965 TL |
644 | sub next_state_error { |
645 | my ($self, $sid, $cd, $sd, $lrm_res) = @_; | |
646 | ||
647 | my $ns = $self->{ns}; | |
648 | ||
649 | if ($cd->{state} eq 'disabled') { | |
650 | &$change_service_state($self, $sid, 'stopped'); | |
651 | return; | |
652 | } | |
653 | ||
654 | if ($ns->node_is_offline_delayed($sd->{node}, $fence_delay)) { | |
655 | &$change_service_state($self, $sid, 'fence'); | |
656 | return; | |
657 | } | |
658 | ||
659 | } | |
660 | ||
c0bbd038 | 661 | 1; |