lib/pacemaker/pcmk_sched

/* */
This source file includes following definitions.
rsc2node_new
can_run_resources
pcmk__copy_node_table
pcmk__copy_node_list
sort_node_weight
sort_nodes_by_weight
native_deallocate
native_assign_node
log_action
can_run_any
create_pseudo_resource_op
pe_cancel_op
sched_shutdown_op
generate_transition_magic
append_digest
pcmk__create_history_xml
   1 /*
   2  * Copyright 2004-2020 the Pacemaker project contributors
   3  *
   4  * The version control history for this file may have further details.
   5  *
   6  * This source code is licensed under the GNU General Public License version 2
   7  * or later (GPLv2+) WITHOUT ANY WARRANTY.
   8  */
   9 
  10 #include <crm_internal.h>
  11 #include <crm/msg_xml.h>
  12 #include <crm/lrmd.h>       // lrmd_event_data_t
  13 #include <crm/common/xml_internal.h>
  14 #include <pacemaker-internal.h>
  15 
  16 pe__location_t *
  17 rsc2node_new(const char *id, pe_resource_t *rsc,
     /*  */
  18              int node_weight, const char *discover_mode,
  19              pe_node_t *foo_node, pe_working_set_t *data_set)
  20 {
  21     pe__location_t *new_con = NULL;
  22 
  23     if (rsc == NULL || id == NULL) {
  24         pe_err("Invalid constraint %s for rsc=%p", crm_str(id), rsc);
  25         return NULL;
  26 
  27     } else if (foo_node == NULL) {
  28         CRM_CHECK(node_weight == 0, return NULL);
  29     }
  30 
  31     new_con = calloc(1, sizeof(pe__location_t));
  32     if (new_con != NULL) {
  33         new_con->id = strdup(id);
  34         new_con->rsc_lh = rsc;
  35         new_con->node_list_rh = NULL;
  36         new_con->role_filter = RSC_ROLE_UNKNOWN;
  37 
  38 
  39         if (pcmk__str_eq(discover_mode, "always", pcmk__str_null_matches | pcmk__str_casei)) {
  40             new_con->discover_mode = pe_discover_always;
  41         } else if (pcmk__str_eq(discover_mode, "never", pcmk__str_casei)) {
  42             new_con->discover_mode = pe_discover_never;
  43         } else if (pcmk__str_eq(discover_mode, "exclusive", pcmk__str_casei)) {
  44             new_con->discover_mode = pe_discover_exclusive;
  45             rsc->exclusive_discover = TRUE;
  46         } else {
  47             pe_err("Invalid %s value %s in location constraint", XML_LOCATION_ATTR_DISCOVERY, discover_mode);
  48         }
  49 
  50         if (foo_node != NULL) {
  51             pe_node_t *copy = pe__copy_node(foo_node);
  52 
  53             copy->weight = node_weight;
  54             new_con->node_list_rh = g_list_prepend(NULL, copy);
  55         }
  56 
  57         data_set->placement_constraints = g_list_prepend(data_set->placement_constraints, new_con);
  58         rsc->rsc_location = g_list_prepend(rsc->rsc_location, new_con);
  59     }
  60 
  61     return new_con;
  62 }
  63 
  64 gboolean
  65 can_run_resources(const pe_node_t * node)
     /*  */
  66 {
  67     if (node == NULL) {
  68         return FALSE;
  69     }
  70 #if 0
  71     if (node->weight < 0) {
  72         return FALSE;
  73     }
  74 #endif
  75 
  76     if (node->details->online == FALSE
  77         || node->details->shutdown || node->details->unclean
  78         || node->details->standby || node->details->maintenance) {
  79         crm_trace("%s: online=%d, unclean=%d, standby=%d, maintenance=%d",
  80                   node->details->uname, node->details->online,
  81                   node->details->unclean, node->details->standby, node->details->maintenance);
  82         return FALSE;
  83     }
  84     return TRUE;
  85 }
  86 
  87 /*!
  88  * \internal
  89  * \brief Copy a hash table of node objects
  90  *
  91  * \param[in] nodes  Hash table to copy
  92  *
  93  * \return New copy of nodes (or NULL if nodes is NULL)
  94  */
  95 GHashTable *
  96 pcmk__copy_node_table(GHashTable *nodes)
     /*  */
  97 {
  98     GHashTable *new_table = NULL;
  99     GHashTableIter iter;
 100     pe_node_t *node = NULL;
 101 
 102     if (nodes == NULL) {
 103         return NULL;
 104     }
 105     new_table = g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, free);
 106     g_hash_table_iter_init(&iter, nodes);
 107     while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &node)) {
 108         pe_node_t *new_node = pe__copy_node(node);
 109 
 110         g_hash_table_insert(new_table, (gpointer) new_node->details->id,
 111                             new_node);
 112     }
 113     return new_table;
 114 }
 115 
 116 /*!
 117  * \internal
 118  * \brief Copy a list of node objects
 119  *
 120  * \param[in] list   List to copy
 121  * \param[in] reset  Set copies' scores to 0
 122  *
 123  * \return New list of shallow copies of nodes in original list
 124  */
 125 GList *
 126 pcmk__copy_node_list(const GList *list, bool reset)
     /*  */
 127 {
 128     GList *result = NULL;
 129 
 130     for (const GList *gIter = list; gIter != NULL; gIter = gIter->next) {
 131         pe_node_t *new_node = NULL;
 132         pe_node_t *this_node = (pe_node_t *) gIter->data;
 133 
 134         new_node = pe__copy_node(this_node);
 135         if (reset) {
 136             new_node->weight = 0;
 137         }
 138         result = g_list_prepend(result, new_node);
 139     }
 140     return result;
 141 }
 142 
 143 struct node_weight_s {
 144     pe_node_t *active;
 145     pe_working_set_t *data_set;
 146 };
 147 
 148 /* return -1 if 'a' is more preferred
 149  * return  1 if 'b' is more preferred
 150  */
 151 
 152 static gint
 153 sort_node_weight(gconstpointer a, gconstpointer b, gpointer data)
     /*  */
 154 {
 155     const pe_node_t *node1 = (const pe_node_t *)a;
 156     const pe_node_t *node2 = (const pe_node_t *)b;
 157     struct node_weight_s *nw = data;
 158 
 159     int node1_weight = 0;
 160     int node2_weight = 0;
 161 
 162     int result = 0;
 163 
 164     if (a == NULL) {
 165         return 1;
 166     }
 167     if (b == NULL) {
 168         return -1;
 169     }
 170 
 171     node1_weight = node1->weight;
 172     node2_weight = node2->weight;
 173 
 174     if (can_run_resources(node1) == FALSE) {
 175         node1_weight = -INFINITY;
 176     }
 177     if (can_run_resources(node2) == FALSE) {
 178         node2_weight = -INFINITY;
 179     }
 180 
 181     if (node1_weight > node2_weight) {
 182         crm_trace("%s (%d) > %s (%d) : weight",
 183                   node1->details->uname, node1_weight, node2->details->uname, node2_weight);
 184         return -1;
 185     }
 186 
 187     if (node1_weight < node2_weight) {
 188         crm_trace("%s (%d) < %s (%d) : weight",
 189                   node1->details->uname, node1_weight, node2->details->uname, node2_weight);
 190         return 1;
 191     }
 192 
 193     crm_trace("%s (%d) == %s (%d) : weight",
 194               node1->details->uname, node1_weight, node2->details->uname, node2_weight);
 195 
 196     if (pcmk__str_eq(nw->data_set->placement_strategy, "minimal", pcmk__str_casei)) {
 197         goto equal;
 198     }
 199 
 200     if (pcmk__str_eq(nw->data_set->placement_strategy, "balanced", pcmk__str_casei)) {
 201         result = compare_capacity(node1, node2);
 202         if (result < 0) {
 203             crm_trace("%s > %s : capacity (%d)",
 204                       node1->details->uname, node2->details->uname, result);
 205             return -1;
 206         } else if (result > 0) {
 207             crm_trace("%s < %s : capacity (%d)",
 208                       node1->details->uname, node2->details->uname, result);
 209             return 1;
 210         }
 211     }
 212 
 213     /* now try to balance resources across the cluster */
 214     if (node1->details->num_resources < node2->details->num_resources) {
 215         crm_trace("%s (%d) > %s (%d) : resources",
 216                   node1->details->uname, node1->details->num_resources,
 217                   node2->details->uname, node2->details->num_resources);
 218         return -1;
 219 
 220     } else if (node1->details->num_resources > node2->details->num_resources) {
 221         crm_trace("%s (%d) < %s (%d) : resources",
 222                   node1->details->uname, node1->details->num_resources,
 223                   node2->details->uname, node2->details->num_resources);
 224         return 1;
 225     }
 226 
 227     if (nw->active && nw->active->details == node1->details) {
 228         crm_trace("%s (%d) > %s (%d) : active",
 229                   node1->details->uname, node1->details->num_resources,
 230                   node2->details->uname, node2->details->num_resources);
 231         return -1;
 232     } else if (nw->active && nw->active->details == node2->details) {
 233         crm_trace("%s (%d) < %s (%d) : active",
 234                   node1->details->uname, node1->details->num_resources,
 235                   node2->details->uname, node2->details->num_resources);
 236         return 1;
 237     }
 238   equal:
 239     crm_trace("%s = %s", node1->details->uname, node2->details->uname);
 240     return strcmp(node1->details->uname, node2->details->uname);
 241 }
 242 
 243 GList *
 244 sort_nodes_by_weight(GList *nodes, pe_node_t *active_node,
     /*  */
 245                      pe_working_set_t *data_set)
 246 {
 247     struct node_weight_s nw = { active_node, data_set };
 248 
 249     return g_list_sort_with_data(nodes, sort_node_weight, &nw);
 250 }
 251 
 252 void
 253 native_deallocate(pe_resource_t * rsc)
     /*  */
 254 {
 255     if (rsc->allocated_to) {
 256         pe_node_t *old = rsc->allocated_to;
 257 
 258         crm_info("Deallocating %s from %s", rsc->id, old->details->uname);
 259         pe__set_resource_flags(rsc, pe_rsc_provisional);
 260         rsc->allocated_to = NULL;
 261 
 262         old->details->allocated_rsc = g_list_remove(old->details->allocated_rsc, rsc);
 263         old->details->num_resources--;
 264         /* old->count--; */
 265         calculate_utilization(old->details->utilization, rsc->utilization, TRUE);
 266         free(old);
 267     }
 268 }
 269 
 270 gboolean
 271 native_assign_node(pe_resource_t * rsc, GListPtr nodes, pe_node_t * chosen, gboolean force)
     /*  */
 272 {
 273     CRM_ASSERT(rsc->variant == pe_native);
 274 
 275     if (force == FALSE && chosen != NULL) {
 276         bool unset = FALSE;
 277 
 278         if(chosen->weight < 0) {
 279             unset = TRUE;
 280 
 281             // Allow the graph to assume that the remote resource will come up
 282         } else if (!can_run_resources(chosen) && !pe__is_guest_node(chosen)) {
 283             unset = TRUE;
 284         }
 285 
 286         if(unset) {
 287             crm_debug("All nodes for resource %s are unavailable"
 288                       ", unclean or shutting down (%s: %d, %d)",
 289                       rsc->id, chosen->details->uname, can_run_resources(chosen), chosen->weight);
 290             rsc->next_role = RSC_ROLE_STOPPED;
 291             chosen = NULL;
 292         }
 293     }
 294 
 295     /* todo: update the old node for each resource to reflect its
 296      * new resource count
 297      */
 298 
 299     native_deallocate(rsc);
 300     pe__clear_resource_flags(rsc, pe_rsc_provisional);
 301 
 302     if (chosen == NULL) {
 303         GListPtr gIter = NULL;
 304         char *rc_inactive = crm_itoa(PCMK_OCF_NOT_RUNNING);
 305 
 306         crm_debug("Could not allocate a node for %s", rsc->id);
 307         rsc->next_role = RSC_ROLE_STOPPED;
 308 
 309         for (gIter = rsc->actions; gIter != NULL; gIter = gIter->next) {
 310             pe_action_t *op = (pe_action_t *) gIter->data;
 311             const char *interval_ms_s = g_hash_table_lookup(op->meta, XML_LRM_ATTR_INTERVAL_MS);
 312 
 313             crm_debug("Processing %s", op->uuid);
 314             if(pcmk__str_eq(RSC_STOP, op->task, pcmk__str_casei)) {
 315                 update_action_flags(op, pe_action_optional | pe_action_clear,
 316                                     __func__, __LINE__);
 317 
 318             } else if(pcmk__str_eq(RSC_START, op->task, pcmk__str_casei)) {
 319                 update_action_flags(op, pe_action_runnable | pe_action_clear,
 320                                     __func__, __LINE__);
 321                 //pe__set_resource_flags(rsc, pe_rsc_block);
 322 
 323             } else if (interval_ms_s && !pcmk__str_eq(interval_ms_s, "0", pcmk__str_casei)) {
 324                 if(pcmk__str_eq(rc_inactive, g_hash_table_lookup(op->meta, XML_ATTR_TE_TARGET_RC), pcmk__str_casei)) {
 325                     /* This is a recurring monitor for the stopped state, leave it alone */
 326 
 327                 } else {
 328                     /* Normal monitor operation, cancel it */
 329                     update_action_flags(op, pe_action_runnable | pe_action_clear,
 330                                         __func__, __LINE__);
 331                 }
 332             }
 333         }
 334 
 335         free(rc_inactive);
 336         return FALSE;
 337     }
 338 
 339     crm_debug("Assigning %s to %s", chosen->details->uname, rsc->id);
 340     rsc->allocated_to = pe__copy_node(chosen);
 341 
 342     chosen->details->allocated_rsc = g_list_prepend(chosen->details->allocated_rsc, rsc);
 343     chosen->details->num_resources++;
 344     chosen->count++;
 345     calculate_utilization(chosen->details->utilization, rsc->utilization, FALSE);
 346     dump_rsc_utilization((show_utilization? LOG_STDOUT : LOG_TRACE),
 347                          __func__, rsc, chosen);
 348 
 349     return TRUE;
 350 }
 351 
 352 void
 353 log_action(unsigned int log_level, const char *pre_text, pe_action_t * action, gboolean details)
     /*  */
 354 {
 355     const char *node_uname = NULL;
 356     const char *node_uuid = NULL;
 357     const char *desc = NULL;
 358 
 359     if (action == NULL) {
 360         crm_trace("%s%s: <NULL>", pre_text == NULL ? "" : pre_text, pre_text == NULL ? "" : ": ");
 361         return;
 362     }
 363 
 364     if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 365         node_uname = NULL;
 366         node_uuid = NULL;
 367 
 368     } else if (action->node != NULL) {
 369         node_uname = action->node->details->uname;
 370         node_uuid = action->node->details->id;
 371     } else {
 372         node_uname = "<none>";
 373         node_uuid = NULL;
 374     }
 375 
 376     switch (text2task(action->task)) {
 377         case stonith_node:
 378         case shutdown_crm:
 379             if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 380                 desc = "Pseudo ";
 381             } else if (pcmk_is_set(action->flags, pe_action_optional)) {
 382                 desc = "Optional ";
 383             } else if (!pcmk_is_set(action->flags, pe_action_runnable)) {
 384                 desc = "!!Non-Startable!! ";
 385             } else if (pcmk_is_set(action->flags, pe_action_processed)) {
 386                desc = "";
 387             } else {
 388                desc = "(Provisional) ";
 389             }
 390             crm_trace("%s%s%sAction %d: %s%s%s%s%s%s",
 391                       ((pre_text == NULL)? "" : pre_text),
 392                       ((pre_text == NULL)? "" : ": "),
 393                       desc, action->id, action->uuid,
 394                       (node_uname? "\ton " : ""), (node_uname? node_uname : ""),
 395                       (node_uuid? "\t\t(" : ""), (node_uuid? node_uuid : ""),
 396                       (node_uuid? ")" : ""));
 397             break;
 398         default:
 399             if (pcmk_is_set(action->flags, pe_action_optional)) {
 400                 desc = "Optional ";
 401             } else if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 402                 desc = "Pseudo ";
 403             } else if (!pcmk_is_set(action->flags, pe_action_runnable)) {
 404                 desc = "!!Non-Startable!! ";
 405             } else if (pcmk_is_set(action->flags, pe_action_processed)) {
 406                desc = "";
 407             } else {
 408                desc = "(Provisional) ";
 409             }
 410             crm_trace("%s%s%sAction %d: %s %s%s%s%s%s%s",
 411                       ((pre_text == NULL)? "" : pre_text),
 412                       ((pre_text == NULL)? "" : ": "),
 413                       desc, action->id, action->uuid,
 414                       (action->rsc? action->rsc->id : "<none>"),
 415                       (node_uname? "\ton " : ""), (node_uname? node_uname : ""),
 416                       (node_uuid? "\t\t(" : ""), (node_uuid? node_uuid : ""),
 417                       (node_uuid? ")" : ""));
 418             break;
 419     }
 420 
 421     if (details) {
 422         GListPtr gIter = NULL;
 423 
 424         crm_trace("\t\t====== Preceding Actions");
 425 
 426         gIter = action->actions_before;
 427         for (; gIter != NULL; gIter = gIter->next) {
 428             pe_action_wrapper_t *other = (pe_action_wrapper_t *) gIter->data;
 429 
 430             log_action(log_level + 1, "\t\t", other->action, FALSE);
 431         }
 432 
 433         crm_trace("\t\t====== Subsequent Actions");
 434 
 435         gIter = action->actions_after;
 436         for (; gIter != NULL; gIter = gIter->next) {
 437             pe_action_wrapper_t *other = (pe_action_wrapper_t *) gIter->data;
 438 
 439             log_action(log_level + 1, "\t\t", other->action, FALSE);
 440         }
 441 
 442         crm_trace("\t\t====== End");
 443 
 444     } else {
 445         crm_trace("\t\t(before=%d, after=%d)",
 446                   g_list_length(action->actions_before), g_list_length(action->actions_after));
 447     }
 448 }
 449 
 450 gboolean
 451 can_run_any(GHashTable * nodes)
     /*  */
 452 {
 453     GHashTableIter iter;
 454     pe_node_t *node = NULL;
 455 
 456     if (nodes == NULL) {
 457         return FALSE;
 458     }
 459 
 460     g_hash_table_iter_init(&iter, nodes);
 461     while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
 462         if (can_run_resources(node) && node->weight >= 0) {
 463             return TRUE;
 464         }
 465     }
 466 
 467     return FALSE;
 468 }
 469 
 470 pe_action_t *
 471 create_pseudo_resource_op(pe_resource_t * rsc, const char *task, bool optional, bool runnable, pe_working_set_t *data_set)
     /*  */
 472 {
 473     pe_action_t *action = custom_action(rsc, pcmk__op_key(rsc->id, task, 0),
 474                                         task, NULL, optional, TRUE, data_set);
 475     update_action_flags(action, pe_action_pseudo, __func__, __LINE__);
 476     update_action_flags(action, pe_action_runnable, __func__, __LINE__);
 477     if(runnable) {
 478         update_action_flags(action, pe_action_runnable, __func__, __LINE__);
 479     }
 480     return action;
 481 }
 482 
 483 /*!
 484  * \internal
 485  * \brief Create an executor cancel op
 486  *
 487  * \param[in] rsc          Resource of action to cancel
 488  * \param[in] task         Name of action to cancel
 489  * \param[in] interval_ms  Interval of action to cancel
 490  * \param[in] node         Node of action to cancel
 491  * \param[in] data_set     Working set of cluster
 492  *
 493  * \return Created op
 494  */
 495 pe_action_t *
 496 pe_cancel_op(pe_resource_t *rsc, const char *task, guint interval_ms,
     /*  */
 497              pe_node_t *node, pe_working_set_t *data_set)
 498 {
 499     pe_action_t *cancel_op;
 500     char *interval_ms_s = crm_strdup_printf("%u", interval_ms);
 501 
 502     // @TODO dangerous if possible to schedule another action with this key
 503     char *key = pcmk__op_key(rsc->id, task, interval_ms);
 504 
 505     cancel_op = custom_action(rsc, key, RSC_CANCEL, node, FALSE, TRUE,
 506                               data_set);
 507 
 508     free(cancel_op->task);
 509     cancel_op->task = strdup(RSC_CANCEL);
 510 
 511     free(cancel_op->cancel_task);
 512     cancel_op->cancel_task = strdup(task);
 513 
 514     add_hash_param(cancel_op->meta, XML_LRM_ATTR_TASK, task);
 515     add_hash_param(cancel_op->meta, XML_LRM_ATTR_INTERVAL_MS, interval_ms_s);
 516     free(interval_ms_s);
 517 
 518     return cancel_op;
 519 }
 520 
 521 /*!
 522  * \internal
 523  * \brief Create a shutdown op for a scheduler transition
 524  *
 525  * \param[in] node         Node being shut down
 526  * \param[in] data_set     Working set of cluster
 527  *
 528  * \return Created op
 529  */
 530 pe_action_t *
 531 sched_shutdown_op(pe_node_t *node, pe_working_set_t *data_set)
     /*  */
 532 {
 533     char *shutdown_id = crm_strdup_printf("%s-%s", CRM_OP_SHUTDOWN,
 534                                           node->details->uname);
 535 
 536     pe_action_t *shutdown_op = custom_action(NULL, shutdown_id, CRM_OP_SHUTDOWN,
 537                                              node, FALSE, TRUE, data_set);
 538 
 539     crm_notice("Scheduling shutdown of node %s", node->details->uname);
 540     shutdown_constraints(node, shutdown_op, data_set);
 541     add_hash_param(shutdown_op->meta, XML_ATTR_TE_NOWAIT, XML_BOOLEAN_TRUE);
 542     return shutdown_op;
 543 }
 544 
 545 static char *
 546 generate_transition_magic(const char *transition_key, int op_status, int op_rc)
     /*  */
 547 {
 548     CRM_CHECK(transition_key != NULL, return NULL);
 549     return crm_strdup_printf("%d:%d;%s", op_status, op_rc, transition_key);
 550 }
 551 
 552 static void
 553 append_digest(lrmd_event_data_t *op, xmlNode *update, const char *version,
     /*  */
 554               const char *magic, int level)
 555 {
 556     /* this will enable us to later determine that the
 557      *   resource's parameters have changed and we should force
 558      *   a restart
 559      */
 560     char *digest = NULL;
 561     xmlNode *args_xml = NULL;
 562 
 563     if (op->params == NULL) {
 564         return;
 565     }
 566 
 567     args_xml = create_xml_node(NULL, XML_TAG_PARAMS);
 568     g_hash_table_foreach(op->params, hash2field, args_xml);
 569     pcmk__filter_op_for_digest(args_xml);
 570     digest = calculate_operation_digest(args_xml, version);
 571 
 572 #if 0
 573     if (level < get_crm_log_level()
 574         && op->interval_ms == 0 && pcmk__str_eq(op->op_type, CRMD_ACTION_START, pcmk__str_none)) {
 575         char *digest_source = dump_xml_unformatted(args_xml);
 576 
 577         do_crm_log(level, "Calculated digest %s for %s (%s). Source: %s\n",
 578                    digest, ID(update), magic, digest_source);
 579         free(digest_source);
 580     }
 581 #endif
 582     crm_xml_add(update, XML_LRM_ATTR_OP_DIGEST, digest);
 583 
 584     free_xml(args_xml);
 585     free(digest);
 586 }
 587 
 588 #define FAKE_TE_ID     "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
 589 
 590 /*!
 591  * \internal
 592  * \brief Create XML for resource operation history update
 593  *
 594  * \param[in,out] parent          Parent XML node to add to
 595  * \param[in,out] op              Operation event data
 596  * \param[in]     caller_version  DC feature set
 597  * \param[in]     target_rc       Expected result of operation
 598  * \param[in]     node            Name of node on which operation was performed
 599  * \param[in]     origin          Arbitrary description of update source
 600  * \param[in]     level           A log message will be logged at this level
 601  *
 602  * \return Newly created XML node for history update
 603  */
 604 xmlNode *
 605 pcmk__create_history_xml(xmlNode *parent, lrmd_event_data_t *op,
     /*  */
 606                          const char *caller_version, int target_rc,
 607                          const char *node, const char *origin, int level)
 608 {
 609     char *key = NULL;
 610     char *magic = NULL;
 611     char *op_id = NULL;
 612     char *op_id_additional = NULL;
 613     char *local_user_data = NULL;
 614     const char *exit_reason = NULL;
 615 
 616     xmlNode *xml_op = NULL;
 617     const char *task = NULL;
 618 
 619     CRM_CHECK(op != NULL, return NULL);
 620     do_crm_log(level, "%s: Updating resource %s after %s op %s (interval=%u)",
 621                origin, op->rsc_id, op->op_type, services_lrm_status_str(op->op_status),
 622                op->interval_ms);
 623 
 624     crm_trace("DC version: %s", caller_version);
 625 
 626     task = op->op_type;
 627 
 628     /* Record a successful reload as a start, and a failed reload as a monitor,
 629      * to make life easier for the scheduler when determining the current state.
 630      */
 631     if (pcmk__str_eq(task, "reload", pcmk__str_none)) {
 632         if (op->op_status == PCMK_LRM_OP_DONE) {
 633             task = CRMD_ACTION_START;
 634         } else {
 635             task = CRMD_ACTION_STATUS;
 636         }
 637     }
 638 
 639     key = pcmk__op_key(op->rsc_id, task, op->interval_ms);
 640     if (pcmk__str_eq(task, CRMD_ACTION_NOTIFY, pcmk__str_none)) {
 641         const char *n_type = crm_meta_value(op->params, "notify_type");
 642         const char *n_task = crm_meta_value(op->params, "notify_operation");
 643 
 644         CRM_LOG_ASSERT(n_type != NULL);
 645         CRM_LOG_ASSERT(n_task != NULL);
 646         op_id = pcmk__notify_key(op->rsc_id, n_type, n_task);
 647 
 648         if (op->op_status != PCMK_LRM_OP_PENDING) {
 649             /* Ignore notify errors.
 650              *
 651              * @TODO It might be better to keep the correct result here, and
 652              * ignore it in process_graph_event().
 653              */
 654             op->op_status = PCMK_LRM_OP_DONE;
 655             op->rc = 0;
 656         }
 657 
 658     } else if (did_rsc_op_fail(op, target_rc)) {
 659         op_id = pcmk__op_key(op->rsc_id, "last_failure", 0);
 660         if (op->interval_ms == 0) {
 661             // Ensure 'last' gets updated, in case record-pending is true
 662             op_id_additional = pcmk__op_key(op->rsc_id, "last", 0);
 663         }
 664         exit_reason = op->exit_reason;
 665 
 666     } else if (op->interval_ms > 0) {
 667         op_id = strdup(key);
 668 
 669     } else {
 670         op_id = pcmk__op_key(op->rsc_id, "last", 0);
 671     }
 672 
 673   again:
 674     xml_op = pcmk__xe_match(parent, XML_LRM_TAG_RSC_OP, XML_ATTR_ID, op_id);
 675     if (xml_op == NULL) {
 676         xml_op = create_xml_node(parent, XML_LRM_TAG_RSC_OP);
 677     }
 678 
 679     if (op->user_data == NULL) {
 680         crm_debug("Generating fake transition key for: " PCMK__OP_FMT
 681                   " %d from %s", op->rsc_id, op->op_type, op->interval_ms,
 682                   op->call_id, origin);
 683         local_user_data = pcmk__transition_key(-1, op->call_id, target_rc,
 684                                                FAKE_TE_ID);
 685         op->user_data = local_user_data;
 686     }
 687 
 688     if(magic == NULL) {
 689         magic = generate_transition_magic(op->user_data, op->op_status, op->rc);
 690     }
 691 
 692     crm_xml_add(xml_op, XML_ATTR_ID, op_id);
 693     crm_xml_add(xml_op, XML_LRM_ATTR_TASK_KEY, key);
 694     crm_xml_add(xml_op, XML_LRM_ATTR_TASK, task);
 695     crm_xml_add(xml_op, XML_ATTR_ORIGIN, origin);
 696     crm_xml_add(xml_op, XML_ATTR_CRM_VERSION, caller_version);
 697     crm_xml_add(xml_op, XML_ATTR_TRANSITION_KEY, op->user_data);
 698     crm_xml_add(xml_op, XML_ATTR_TRANSITION_MAGIC, magic);
 699     crm_xml_add(xml_op, XML_LRM_ATTR_EXIT_REASON, exit_reason == NULL ? "" : exit_reason);
 700     crm_xml_add(xml_op, XML_LRM_ATTR_TARGET, node); /* For context during triage */
 701 
 702     crm_xml_add_int(xml_op, XML_LRM_ATTR_CALLID, op->call_id);
 703     crm_xml_add_int(xml_op, XML_LRM_ATTR_RC, op->rc);
 704     crm_xml_add_int(xml_op, XML_LRM_ATTR_OPSTATUS, op->op_status);
 705     crm_xml_add_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, op->interval_ms);
 706 
 707     if (compare_version("2.1", caller_version) <= 0) {
 708         if (op->t_run || op->t_rcchange || op->exec_time || op->queue_time) {
 709             crm_trace("Timing data (" PCMK__OP_FMT
 710                       "): last=%u change=%u exec=%u queue=%u",
 711                       op->rsc_id, op->op_type, op->interval_ms,
 712                       op->t_run, op->t_rcchange, op->exec_time, op->queue_time);
 713 
 714             if (op->interval_ms == 0) {
 715                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_CHANGE,
 716                                (long long) op->t_run);
 717 
 718                 // @COMPAT last-run is deprecated
 719                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_RUN,
 720                                (long long) op->t_run);
 721 
 722             } else if(op->t_rcchange) {
 723                 /* last-run is not accurate for recurring ops */
 724                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_CHANGE,
 725                                (long long) op->t_rcchange);
 726 
 727             } else {
 728                 /* ...but is better than nothing otherwise */
 729                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_CHANGE,
 730                                (long long) op->t_run);
 731             }
 732 
 733             crm_xml_add_int(xml_op, XML_RSC_OP_T_EXEC, op->exec_time);
 734             crm_xml_add_int(xml_op, XML_RSC_OP_T_QUEUE, op->queue_time);
 735         }
 736     }
 737 
 738     if (pcmk__str_any_of(op->op_type, CRMD_ACTION_MIGRATE, CRMD_ACTION_MIGRATED, NULL)) {
 739         /*
 740          * Record migrate_source and migrate_target always for migrate ops.
 741          */
 742         const char *name = XML_LRM_ATTR_MIGRATE_SOURCE;
 743 
 744         crm_xml_add(xml_op, name, crm_meta_value(op->params, name));
 745 
 746         name = XML_LRM_ATTR_MIGRATE_TARGET;
 747         crm_xml_add(xml_op, name, crm_meta_value(op->params, name));
 748     }
 749 
 750     append_digest(op, xml_op, caller_version, magic, LOG_DEBUG);
 751 
 752     if (op_id_additional) {
 753         free(op_id);
 754         op_id = op_id_additional;
 755         op_id_additional = NULL;
 756         goto again;
 757     }
 758 
 759     if (local_user_data) {
 760         free(local_user_data);
 761         op->user_data = NULL;
 762     }
 763     free(magic);
 764     free(op_id);
 765     free(key);
 766     return xml_op;
 767 }
/* */
root/lib/pacemaker/pcmk_sched_utils.c

DEFINITIONS
