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
pcmk__new_logger
   1 /*
   2  * Copyright 2004-2021 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 = pcmk__strkey_table(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, pe_node_t *chosen, gboolean force)
     /*  */
 272 {
 273     pcmk__output_t *out = rsc->cluster->priv;
 274 
 275     CRM_ASSERT(rsc->variant == pe_native);
 276 
 277     if (force == FALSE && chosen != NULL) {
 278         bool unset = FALSE;
 279 
 280         if(chosen->weight < 0) {
 281             unset = TRUE;
 282 
 283             // Allow the graph to assume that the remote resource will come up
 284         } else if (!can_run_resources(chosen) && !pe__is_guest_node(chosen)) {
 285             unset = TRUE;
 286         }
 287 
 288         if(unset) {
 289             crm_debug("All nodes for resource %s are unavailable"
 290                       ", unclean or shutting down (%s: %d, %d)",
 291                       rsc->id, chosen->details->uname, can_run_resources(chosen), chosen->weight);
 292             pe__set_next_role(rsc, RSC_ROLE_STOPPED, "node availability");
 293             chosen = NULL;
 294         }
 295     }
 296 
 297     /* todo: update the old node for each resource to reflect its
 298      * new resource count
 299      */
 300 
 301     native_deallocate(rsc);
 302     pe__clear_resource_flags(rsc, pe_rsc_provisional);
 303 
 304     if (chosen == NULL) {
 305         GList *gIter = NULL;
 306         char *rc_inactive = pcmk__itoa(PCMK_OCF_NOT_RUNNING);
 307 
 308         crm_debug("Could not allocate a node for %s", rsc->id);
 309         pe__set_next_role(rsc, RSC_ROLE_STOPPED, "unable to allocate");
 310 
 311         for (gIter = rsc->actions; gIter != NULL; gIter = gIter->next) {
 312             pe_action_t *op = (pe_action_t *) gIter->data;
 313             const char *interval_ms_s = g_hash_table_lookup(op->meta, XML_LRM_ATTR_INTERVAL_MS);
 314 
 315             crm_debug("Processing %s", op->uuid);
 316             if(pcmk__str_eq(RSC_STOP, op->task, pcmk__str_casei)) {
 317                 pe__clear_action_flags(op, pe_action_optional);
 318 
 319             } else if(pcmk__str_eq(RSC_START, op->task, pcmk__str_casei)) {
 320                 pe__clear_action_flags(op, pe_action_runnable);
 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                     pe__clear_action_flags(op, pe_action_runnable);
 330                 }
 331             }
 332         }
 333 
 334         free(rc_inactive);
 335         return FALSE;
 336     }
 337 
 338     crm_debug("Assigning %s to %s", chosen->details->uname, rsc->id);
 339     rsc->allocated_to = pe__copy_node(chosen);
 340 
 341     chosen->details->allocated_rsc = g_list_prepend(chosen->details->allocated_rsc, rsc);
 342     chosen->details->num_resources++;
 343     chosen->count++;
 344     calculate_utilization(chosen->details->utilization, rsc->utilization, FALSE);
 345 
 346     if (pcmk_is_set(rsc->cluster->flags, pe_flag_show_utilization)) {
 347         out->message(out, "resource-util", rsc, chosen, __func__);
 348     }
 349 
 350     return TRUE;
 351 }
 352 
 353 void
 354 log_action(unsigned int log_level, const char *pre_text, pe_action_t * action, gboolean details)
     /*  */
 355 {
 356     const char *node_uname = NULL;
 357     const char *node_uuid = NULL;
 358     const char *desc = NULL;
 359 
 360     if (action == NULL) {
 361         crm_trace("%s%s: <NULL>", pre_text == NULL ? "" : pre_text, pre_text == NULL ? "" : ": ");
 362         return;
 363     }
 364 
 365     if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 366         node_uname = NULL;
 367         node_uuid = NULL;
 368 
 369     } else if (action->node != NULL) {
 370         node_uname = action->node->details->uname;
 371         node_uuid = action->node->details->id;
 372     } else {
 373         node_uname = "<none>";
 374         node_uuid = NULL;
 375     }
 376 
 377     switch (text2task(action->task)) {
 378         case stonith_node:
 379         case shutdown_crm:
 380             if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 381                 desc = "Pseudo ";
 382             } else if (pcmk_is_set(action->flags, pe_action_optional)) {
 383                 desc = "Optional ";
 384             } else if (!pcmk_is_set(action->flags, pe_action_runnable)) {
 385                 desc = "!!Non-Startable!! ";
 386             } else if (pcmk_is_set(action->flags, pe_action_processed)) {
 387                desc = "";
 388             } else {
 389                desc = "(Provisional) ";
 390             }
 391             crm_trace("%s%s%sAction %d: %s%s%s%s%s%s",
 392                       ((pre_text == NULL)? "" : pre_text),
 393                       ((pre_text == NULL)? "" : ": "),
 394                       desc, action->id, action->uuid,
 395                       (node_uname? "\ton " : ""), (node_uname? node_uname : ""),
 396                       (node_uuid? "\t\t(" : ""), (node_uuid? node_uuid : ""),
 397                       (node_uuid? ")" : ""));
 398             break;
 399         default:
 400             if (pcmk_is_set(action->flags, pe_action_optional)) {
 401                 desc = "Optional ";
 402             } else if (pcmk_is_set(action->flags, pe_action_pseudo)) {
 403                 desc = "Pseudo ";
 404             } else if (!pcmk_is_set(action->flags, pe_action_runnable)) {
 405                 desc = "!!Non-Startable!! ";
 406             } else if (pcmk_is_set(action->flags, pe_action_processed)) {
 407                desc = "";
 408             } else {
 409                desc = "(Provisional) ";
 410             }
 411             crm_trace("%s%s%sAction %d: %s %s%s%s%s%s%s",
 412                       ((pre_text == NULL)? "" : pre_text),
 413                       ((pre_text == NULL)? "" : ": "),
 414                       desc, action->id, action->uuid,
 415                       (action->rsc? action->rsc->id : "<none>"),
 416                       (node_uname? "\ton " : ""), (node_uname? node_uname : ""),
 417                       (node_uuid? "\t\t(" : ""), (node_uuid? node_uuid : ""),
 418                       (node_uuid? ")" : ""));
 419             break;
 420     }
 421 
 422     if (details) {
 423         GList *gIter = NULL;
 424 
 425         crm_trace("\t\t====== Preceding Actions");
 426 
 427         gIter = action->actions_before;
 428         for (; gIter != NULL; gIter = gIter->next) {
 429             pe_action_wrapper_t *other = (pe_action_wrapper_t *) gIter->data;
 430 
 431             log_action(log_level + 1, "\t\t", other->action, FALSE);
 432         }
 433 
 434         crm_trace("\t\t====== Subsequent Actions");
 435 
 436         gIter = action->actions_after;
 437         for (; gIter != NULL; gIter = gIter->next) {
 438             pe_action_wrapper_t *other = (pe_action_wrapper_t *) gIter->data;
 439 
 440             log_action(log_level + 1, "\t\t", other->action, FALSE);
 441         }
 442 
 443         crm_trace("\t\t====== End");
 444 
 445     } else {
 446         crm_trace("\t\t(before=%d, after=%d)",
 447                   g_list_length(action->actions_before), g_list_length(action->actions_after));
 448     }
 449 }
 450 
 451 gboolean
 452 can_run_any(GHashTable * nodes)
     /*  */
 453 {
 454     GHashTableIter iter;
 455     pe_node_t *node = NULL;
 456 
 457     if (nodes == NULL) {
 458         return FALSE;
 459     }
 460 
 461     g_hash_table_iter_init(&iter, nodes);
 462     while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
 463         if (can_run_resources(node) && node->weight >= 0) {
 464             return TRUE;
 465         }
 466     }
 467 
 468     return FALSE;
 469 }
 470 
 471 pe_action_t *
 472 create_pseudo_resource_op(pe_resource_t * rsc, const char *task, bool optional, bool runnable, pe_working_set_t *data_set)
     /*  */
 473 {
 474     pe_action_t *action = custom_action(rsc, pcmk__op_key(rsc->id, task, 0),
 475                                         task, NULL, optional, TRUE, data_set);
 476 
 477     pe__set_action_flags(action, pe_action_pseudo);
 478     if(runnable) {
 479         pe__set_action_flags(action, pe_action_runnable);
 480     }
 481     return action;
 482 }
 483 
 484 /*!
 485  * \internal
 486  * \brief Create an executor cancel op
 487  *
 488  * \param[in] rsc          Resource of action to cancel
 489  * \param[in] task         Name of action to cancel
 490  * \param[in] interval_ms  Interval of action to cancel
 491  * \param[in] node         Node of action to cancel
 492  * \param[in] data_set     Working set of cluster
 493  *
 494  * \return Created op
 495  */
 496 pe_action_t *
 497 pe_cancel_op(pe_resource_t *rsc, const char *task, guint interval_ms,
     /*  */
 498              pe_node_t *node, pe_working_set_t *data_set)
 499 {
 500     pe_action_t *cancel_op;
 501     char *interval_ms_s = crm_strdup_printf("%u", interval_ms);
 502 
 503     // @TODO dangerous if possible to schedule another action with this key
 504     char *key = pcmk__op_key(rsc->id, task, interval_ms);
 505 
 506     cancel_op = custom_action(rsc, key, RSC_CANCEL, node, FALSE, TRUE,
 507                               data_set);
 508 
 509     free(cancel_op->task);
 510     cancel_op->task = strdup(RSC_CANCEL);
 511 
 512     free(cancel_op->cancel_task);
 513     cancel_op->cancel_task = strdup(task);
 514 
 515     add_hash_param(cancel_op->meta, XML_LRM_ATTR_TASK, task);
 516     add_hash_param(cancel_op->meta, XML_LRM_ATTR_INTERVAL_MS, interval_ms_s);
 517     free(interval_ms_s);
 518 
 519     return cancel_op;
 520 }
 521 
 522 /*!
 523  * \internal
 524  * \brief Create a shutdown op for a scheduler transition
 525  *
 526  * \param[in] node         Node being shut down
 527  * \param[in] data_set     Working set of cluster
 528  *
 529  * \return Created op
 530  */
 531 pe_action_t *
 532 sched_shutdown_op(pe_node_t *node, pe_working_set_t *data_set)
     /*  */
 533 {
 534     char *shutdown_id = crm_strdup_printf("%s-%s", CRM_OP_SHUTDOWN,
 535                                           node->details->uname);
 536 
 537     pe_action_t *shutdown_op = custom_action(NULL, shutdown_id, CRM_OP_SHUTDOWN,
 538                                              node, FALSE, TRUE, data_set);
 539 
 540     crm_notice("Scheduling shutdown of node %s", node->details->uname);
 541     shutdown_constraints(node, shutdown_op, data_set);
 542     add_hash_param(shutdown_op->meta, XML_ATTR_TE_NOWAIT, XML_BOOLEAN_TRUE);
 543     return shutdown_op;
 544 }
 545 
 546 static char *
 547 generate_transition_magic(const char *transition_key, int op_status, int op_rc)
     /*  */
 548 {
 549     CRM_CHECK(transition_key != NULL, return NULL);
 550     return crm_strdup_printf("%d:%d;%s", op_status, op_rc, transition_key);
 551 }
 552 
 553 static void
 554 append_digest(lrmd_event_data_t *op, xmlNode *update, const char *version,
     /*  */
 555               const char *magic, int level)
 556 {
 557     /* this will enable us to later determine that the
 558      *   resource's parameters have changed and we should force
 559      *   a restart
 560      */
 561     char *digest = NULL;
 562     xmlNode *args_xml = NULL;
 563 
 564     if (op->params == NULL) {
 565         return;
 566     }
 567 
 568     args_xml = create_xml_node(NULL, XML_TAG_PARAMS);
 569     g_hash_table_foreach(op->params, hash2field, args_xml);
 570     pcmk__filter_op_for_digest(args_xml);
 571     digest = calculate_operation_digest(args_xml, version);
 572 
 573 #if 0
 574     if (level < get_crm_log_level()
 575         && op->interval_ms == 0 && pcmk__str_eq(op->op_type, CRMD_ACTION_START, pcmk__str_none)) {
 576         char *digest_source = dump_xml_unformatted(args_xml);
 577 
 578         do_crm_log(level, "Calculated digest %s for %s (%s). Source: %s\n",
 579                    digest, ID(update), magic, digest_source);
 580         free(digest_source);
 581     }
 582 #endif
 583     crm_xml_add(update, XML_LRM_ATTR_OP_DIGEST, digest);
 584 
 585     free_xml(args_xml);
 586     free(digest);
 587 }
 588 
 589 #define FAKE_TE_ID     "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
 590 
 591 /*!
 592  * \internal
 593  * \brief Create XML for resource operation history update
 594  *
 595  * \param[in,out] parent          Parent XML node to add to
 596  * \param[in,out] op              Operation event data
 597  * \param[in]     caller_version  DC feature set
 598  * \param[in]     target_rc       Expected result of operation
 599  * \param[in]     node            Name of node on which operation was performed
 600  * \param[in]     origin          Arbitrary description of update source
 601  * \param[in]     level           A log message will be logged at this level
 602  *
 603  * \return Newly created XML node for history update
 604  */
 605 xmlNode *
 606 pcmk__create_history_xml(xmlNode *parent, lrmd_event_data_t *op,
     /*  */
 607                          const char *caller_version, int target_rc,
 608                          const char *node, const char *origin, int level)
 609 {
 610     char *key = NULL;
 611     char *magic = NULL;
 612     char *op_id = NULL;
 613     char *op_id_additional = NULL;
 614     char *local_user_data = NULL;
 615     const char *exit_reason = NULL;
 616 
 617     xmlNode *xml_op = NULL;
 618     const char *task = NULL;
 619 
 620     CRM_CHECK(op != NULL, return NULL);
 621     do_crm_log(level, "%s: Updating resource %s after %s op %s (interval=%u)",
 622                origin, op->rsc_id, op->op_type, services_lrm_status_str(op->op_status),
 623                op->interval_ms);
 624 
 625     crm_trace("DC version: %s", caller_version);
 626 
 627     task = op->op_type;
 628 
 629     /* Record a successful agent reload as a start, and a failed one as a
 630      * monitor, to make life easier for the scheduler when determining the
 631      * current state.
 632      *
 633      * @COMPAT We should check "reload" here only if the operation was for a
 634      * pre-OCF-1.1 resource agent, but we don't know that here, and we should
 635      * only ever get results for actions scheduled by us, so we can reasonably
 636      * assume any "reload" is actually a pre-1.1 agent reload.
 637      */
 638     if (pcmk__str_any_of(task, CRMD_ACTION_RELOAD, CRMD_ACTION_RELOAD_AGENT,
 639                          NULL)) {
 640         if (op->op_status == PCMK_LRM_OP_DONE) {
 641             task = CRMD_ACTION_START;
 642         } else {
 643             task = CRMD_ACTION_STATUS;
 644         }
 645     }
 646 
 647     key = pcmk__op_key(op->rsc_id, task, op->interval_ms);
 648     if (pcmk__str_eq(task, CRMD_ACTION_NOTIFY, pcmk__str_none)) {
 649         const char *n_type = crm_meta_value(op->params, "notify_type");
 650         const char *n_task = crm_meta_value(op->params, "notify_operation");
 651 
 652         CRM_LOG_ASSERT(n_type != NULL);
 653         CRM_LOG_ASSERT(n_task != NULL);
 654         op_id = pcmk__notify_key(op->rsc_id, n_type, n_task);
 655 
 656         if (op->op_status != PCMK_LRM_OP_PENDING) {
 657             /* Ignore notify errors.
 658              *
 659              * @TODO It might be better to keep the correct result here, and
 660              * ignore it in process_graph_event().
 661              */
 662             op->op_status = PCMK_LRM_OP_DONE;
 663             op->rc = 0;
 664         }
 665 
 666     } else if (did_rsc_op_fail(op, target_rc)) {
 667         op_id = pcmk__op_key(op->rsc_id, "last_failure", 0);
 668         if (op->interval_ms == 0) {
 669             // Ensure 'last' gets updated, in case record-pending is true
 670             op_id_additional = pcmk__op_key(op->rsc_id, "last", 0);
 671         }
 672         exit_reason = op->exit_reason;
 673 
 674     } else if (op->interval_ms > 0) {
 675         op_id = strdup(key);
 676 
 677     } else {
 678         op_id = pcmk__op_key(op->rsc_id, "last", 0);
 679     }
 680 
 681   again:
 682     xml_op = pcmk__xe_match(parent, XML_LRM_TAG_RSC_OP, XML_ATTR_ID, op_id);
 683     if (xml_op == NULL) {
 684         xml_op = create_xml_node(parent, XML_LRM_TAG_RSC_OP);
 685     }
 686 
 687     if (op->user_data == NULL) {
 688         crm_debug("Generating fake transition key for: " PCMK__OP_FMT
 689                   " %d from %s", op->rsc_id, op->op_type, op->interval_ms,
 690                   op->call_id, origin);
 691         local_user_data = pcmk__transition_key(-1, op->call_id, target_rc,
 692                                                FAKE_TE_ID);
 693         op->user_data = local_user_data;
 694     }
 695 
 696     if(magic == NULL) {
 697         magic = generate_transition_magic(op->user_data, op->op_status, op->rc);
 698     }
 699 
 700     crm_xml_add(xml_op, XML_ATTR_ID, op_id);
 701     crm_xml_add(xml_op, XML_LRM_ATTR_TASK_KEY, key);
 702     crm_xml_add(xml_op, XML_LRM_ATTR_TASK, task);
 703     crm_xml_add(xml_op, XML_ATTR_ORIGIN, origin);
 704     crm_xml_add(xml_op, XML_ATTR_CRM_VERSION, caller_version);
 705     crm_xml_add(xml_op, XML_ATTR_TRANSITION_KEY, op->user_data);
 706     crm_xml_add(xml_op, XML_ATTR_TRANSITION_MAGIC, magic);
 707     crm_xml_add(xml_op, XML_LRM_ATTR_EXIT_REASON, exit_reason == NULL ? "" : exit_reason);
 708     crm_xml_add(xml_op, XML_LRM_ATTR_TARGET, node); /* For context during triage */
 709 
 710     crm_xml_add_int(xml_op, XML_LRM_ATTR_CALLID, op->call_id);
 711     crm_xml_add_int(xml_op, XML_LRM_ATTR_RC, op->rc);
 712     crm_xml_add_int(xml_op, XML_LRM_ATTR_OPSTATUS, op->op_status);
 713     crm_xml_add_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, op->interval_ms);
 714 
 715     if (compare_version("2.1", caller_version) <= 0) {
 716         if (op->t_run || op->t_rcchange || op->exec_time || op->queue_time) {
 717             crm_trace("Timing data (" PCMK__OP_FMT
 718                       "): last=%u change=%u exec=%u queue=%u",
 719                       op->rsc_id, op->op_type, op->interval_ms,
 720                       op->t_run, op->t_rcchange, op->exec_time, op->queue_time);
 721 
 722             if ((op->interval_ms != 0) && (op->t_rcchange != 0)) {
 723                 // Recurring ops may have changed rc after initial run
 724                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_CHANGE,
 725                                (long long) op->t_rcchange);
 726             } else {
 727                 crm_xml_add_ll(xml_op, XML_RSC_OP_LAST_CHANGE,
 728                                (long long) op->t_run);
 729             }
 730 
 731             crm_xml_add_int(xml_op, XML_RSC_OP_T_EXEC, op->exec_time);
 732             crm_xml_add_int(xml_op, XML_RSC_OP_T_QUEUE, op->queue_time);
 733         }
 734     }
 735 
 736     if (pcmk__str_any_of(op->op_type, CRMD_ACTION_MIGRATE, CRMD_ACTION_MIGRATED, NULL)) {
 737         /*
 738          * Record migrate_source and migrate_target always for migrate ops.
 739          */
 740         const char *name = XML_LRM_ATTR_MIGRATE_SOURCE;
 741 
 742         crm_xml_add(xml_op, name, crm_meta_value(op->params, name));
 743 
 744         name = XML_LRM_ATTR_MIGRATE_TARGET;
 745         crm_xml_add(xml_op, name, crm_meta_value(op->params, name));
 746     }
 747 
 748     append_digest(op, xml_op, caller_version, magic, LOG_DEBUG);
 749 
 750     if (op_id_additional) {
 751         free(op_id);
 752         op_id = op_id_additional;
 753         op_id_additional = NULL;
 754         goto again;
 755     }
 756 
 757     if (local_user_data) {
 758         free(local_user_data);
 759         op->user_data = NULL;
 760     }
 761     free(magic);
 762     free(op_id);
 763     free(key);
 764     return xml_op;
 765 }
 766 
 767 pcmk__output_t *
 768 pcmk__new_logger(void)
     /*  */
 769 {
 770     int rc = pcmk_rc_ok;
 771     pcmk__output_t *out = NULL;
 772     const char* argv[] = { "", NULL };
 773     pcmk__supported_format_t formats[] = {
 774         PCMK__SUPPORTED_FORMAT_LOG,
 775         { NULL, NULL, NULL }
 776     };
 777 
 778     pcmk__register_formats(NULL, formats);
 779     rc = pcmk__output_new(&out, "log", NULL, (char**)argv);
 780     if ((rc != pcmk_rc_ok) || (out == NULL)) {
 781         crm_err("Can't log resource details due to internal error: %s\n",
 782                 pcmk_rc_str(rc));
 783         return NULL;
 784     }
 785 
 786     pe__register_messages(out);
 787     pcmk__register_lib_messages(out);
 788     return out;
 789 }
/* */
root/lib/pacemaker/pcmk_sched_utils.c

DEFINITIONS
