void
election_timeout_stop(election_t *e)
{
if(e) {
mainloop_timer_stop(e->timeout);
}
}
void mainloop_timer_start(mainloop_timer_t *t)
{
mainloop_timer_stop(t);
if(t && t->period_ms > 0) {
crm_trace("Starting timer %s", t->name);
t->id = g_timeout_add(t->period_ms, mainloop_timer_cb, t);
}
}
void
mainloop_timer_del(mainloop_timer_t *t)
{
if(t) {
crm_trace("Destroying timer %s", t->name);
mainloop_timer_stop(t);
free(t->name);
free(t);
}
}
void
election_reset(election_t *e)
{
if(e) {
mainloop_timer_stop(e->timeout);
}
if (e && e->voted) {
crm_trace("Destroying voted cache with %d members", g_hash_table_size(e->voted));
g_hash_table_destroy(e->voted);
e->voted = NULL;
}
}
/*!
* \brief Stop election timer and disregard all votes
*
* \param[in] e Election object
*/
void
election_reset(election_t *e)
{
if (e != NULL) {
crm_trace("Resetting election %s", e->name);
mainloop_timer_stop(e->timeout);
if (e->voted) {
crm_trace("Destroying voted cache with %d members", g_hash_table_size(e->voted));
g_hash_table_destroy(e->voted);
e->voted = NULL;
}
}
}
/* ELECTION情報をリセットする */
void
election_reset(election_t *e)
{
crm_trace("Resetting election %s", e->name);
if(e) {
/* ELECTIONのタイマーを停止する */
mainloop_timer_stop(e->timeout);
}
if (e && e->voted) {
crm_trace("Destroying voted cache with %d members", g_hash_table_size(e->voted));
g_hash_table_destroy(e->voted);
e->voted = NULL;
}
}
/*!
* \internal
* \brief Respond to a client refresh request (i.e. write out all attributes)
*
* \return void
*/
void
attrd_client_refresh(void)
{
GHashTableIter iter;
attribute_t *a = NULL;
/* 'refresh' forces a write of the current value of all attributes
* Cancel any existing timers, we're writing it NOW
*/
g_hash_table_iter_init(&iter, attributes);
while (g_hash_table_iter_next(&iter, NULL, (gpointer *) & a)) {
mainloop_timer_stop(a->timer);
}
crm_info("Updating all attributes");
write_attributes(TRUE, FALSE);
}
void
write_attribute(attribute_t *a, bool ignore_delay)
{
int private_updates = 0, cib_updates = 0;
xmlNode *xml_top = NULL;
attribute_value_t *v = NULL;
GHashTableIter iter;
enum cib_call_options flags = cib_quorum_override;
GHashTable *alert_attribute_value = NULL;
if (a == NULL) {
return;
}
/* If this attribute will be written to the CIB ... */
if (!a->is_private) {
/* Defer the write if now's not a good time */
CRM_CHECK(the_cib != NULL, return);
if (a->update && (a->update < last_cib_op_done)) {
crm_info("Write out of '%s' continuing: update %d considered lost", a->id, a->update);
a->update = 0; // Don't log this message again
} else if (a->update) {
crm_info("Write out of '%s' delayed: update %d in progress", a->id, a->update);
return;
} else if (mainloop_timer_running(a->timer)) {
if (ignore_delay) {
/* 'refresh' forces a write of the current value of all attributes
* Cancel any existing timers, we're writing it NOW
*/
mainloop_timer_stop(a->timer);
crm_debug("Write out of '%s': timer is running but ignore delay", a->id);
} else {
crm_info("Write out of '%s' delayed: timer is running", a->id);
return;
}
}
/* Initialize the status update XML */
xml_top = create_xml_node(NULL, XML_CIB_TAG_STATUS);
}
static gboolean
mon_refresh_state(gpointer user_data)
{
xmlNode *cib_copy = NULL;
pe_working_set_t data_set;
if(current_cib == NULL) {
return FALSE;
}
if(user_data) {
mainloop_timer_t *timer = user_data;
mainloop_timer_stop(timer);
}
cib_copy = copy_xml(current_cib);
if (cli_config_update(&cib_copy, NULL, FALSE) == FALSE) {
cl_log(LOG_WARNING, "cli_config_update() failed - forcing reconnect to CIB");
if (cib) {
cib->cmds->signoff(cib);
}
} else {
last_refresh = time(NULL);
set_working_set_defaults(&data_set);
data_set.input = cib_copy;
data_set.flags |= pe_flag_have_stonith_resource;
cluster_status(&data_set);
compute_status(&data_set);
cleanup_calculations(&data_set);
}
return FALSE;
}
void
attrd_peer_update(crm_node_t *peer, xmlNode *xml, const char *host, bool filter)
{
bool changed = FALSE;
attribute_t *a;
attribute_value_t *v = NULL;
int dampen = 0;
const char *op = crm_element_value(xml, F_ATTRD_TASK);
const char *attr = crm_element_value(xml, F_ATTRD_ATTRIBUTE);
const char *value = crm_element_value(xml, F_ATTRD_VALUE);
const char *dvalue = crm_element_value(xml, F_ATTRD_DAMPEN);
if (attr == NULL) {
crm_warn("Peer update did not specify attribute");
return;
}
a = g_hash_table_lookup(attributes, attr);
if(a == NULL) {
if (op == NULL /* The xml children from an ATTRD_OP_SYNC_RESPONSE have no F_ATTRD_TASK */
|| safe_str_eq(op, ATTRD_OP_UPDATE)
|| safe_str_eq(op, ATTRD_OP_UPDATE_BOTH)) {
a = create_attribute(xml);
} else {
crm_warn("Update error (attribute %s not found)", attr);
return;
}
}
if (op == NULL /* The xml children from an ATTRD_OP_SYNC_RESPONSE have no F_ATTRD_TASK */
|| safe_str_eq(op, ATTRD_OP_UPDATE_BOTH)
|| safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
if (dvalue) {
dampen = crm_get_msec(dvalue);
if (dampen >= 0) {
if (a->timeout_ms != dampen) {
mainloop_timer_stop(a->timer);
mainloop_timer_del(a->timer);
a->timeout_ms = dampen;
if (dampen > 0) {
a->timer = mainloop_timer_add(a->id, a->timeout_ms, FALSE, attribute_timer_cb, a);
crm_info("Update attribute %s with delay %dms (%s)", a->id, dampen, dvalue);
} else {
a->timer = NULL;
crm_info("Update attribute %s with not delay", a->id);
}
//if dampen is changed, attrd writes in a current value immediately.
write_or_elect_attribute(a);
if (safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
return;
}
} else {
if (safe_str_eq(op, ATTRD_OP_UPDATE_DELAY)) {
crm_trace("Unchanged attribute %s with delay %dms (%s).(ATTRD_OP_UPDATE_DELAY)", a->id, dampen, dvalue);
return;
}
}
} else {
crm_warn("Update error (A positive number is necessary for delay parameter. attribute %s : %dms (%s))", a->id, dampen, dvalue);
return;
}
} else {
crm_warn("Update error (delay parameter is necessary for the update of the attribute %s)", a->id);
return;
}
}
if(host == NULL) {
GHashTableIter vIter;
g_hash_table_iter_init(&vIter, a->values);
crm_debug("Setting %s for all hosts to %s", attr, value);
xml_remove_prop(xml, F_ATTRD_HOST_ID);
while (g_hash_table_iter_next(&vIter, (gpointer *) & host, NULL)) {
attrd_peer_update(peer, xml, host, filter);
}
return;
}
v = attrd_lookup_or_create_value(a->values, host, xml);
if(filter
&& safe_str_neq(v->current, value)
&& safe_str_eq(host, attrd_cluster->uname)) {
xmlNode *sync = create_xml_node(NULL, __FUNCTION__);
crm_notice("%s[%s]: local value '%s' takes priority over '%s' from %s",
a->id, host, v->current, value, peer->uname);
crm_xml_add(sync, F_ATTRD_TASK, ATTRD_OP_SYNC_RESPONSE);
v = g_hash_table_lookup(a->values, host);
build_attribute_xml(sync, a->id, a->set, a->uuid, a->timeout_ms, a->user, a->is_private,
v->nodename, v->nodeid, v->current);
crm_xml_add_int(sync, F_ATTRD_WRITER, election_state(writer));
send_attrd_message(peer, sync);
free_xml(sync);
} else if(safe_str_neq(v->current, value)) {
crm_info("Setting %s[%s]: %s -> %s from %s", attr, host, v->current, value, peer->uname);
free(v->current);
if(value) {
v->current = strdup(value);
} else {
v->current = NULL;
}
changed = TRUE;
} else {
crm_trace("Unchanged %s[%s] from %s is %s", attr, host, peer->uname, value);
}
a->changed |= changed;
if(changed) {
if(a->timer) {
crm_trace("Delayed write out (%dms) for %s", a->timeout_ms, a->id);
mainloop_timer_start(a->timer);
} else {
write_or_elect_attribute(a);
}
}
/* this only involves cluster nodes. */
if(v->nodeid == 0 && (v->is_remote == FALSE)) {
if(crm_element_value_int(xml, F_ATTRD_HOST_ID, (int*)&v->nodeid) == 0) {
/* Create the name/id association */
crm_node_t *peer = crm_get_peer(v->nodeid, host);
crm_trace("We know %s's node id now: %s", peer->uname, peer->uuid);
if(election_state(writer) == election_won) {
write_attributes(FALSE, TRUE);
return;
}
}
}
}
int
cib_process_command(xmlNode * request, xmlNode ** reply, xmlNode ** cib_diff, gboolean privileged)
{
xmlNode *input = NULL;
xmlNode *output = NULL;
xmlNode *result_cib = NULL;
xmlNode *current_cib = NULL;
int call_type = 0;
int call_options = 0;
const char *op = NULL;
const char *section = NULL;
const char *call_id = crm_element_value(request, F_CIB_CALLID);
int rc = pcmk_ok;
int rc2 = pcmk_ok;
gboolean send_r_notify = FALSE;
gboolean global_update = FALSE;
gboolean config_changed = FALSE;
gboolean manage_counters = TRUE;
static mainloop_timer_t *digest_timer = NULL;
CRM_ASSERT(cib_status == pcmk_ok);
if(digest_timer == NULL) {
digest_timer = mainloop_timer_add("digester", 5000, FALSE, cib_digester_cb, NULL);
}
*reply = NULL;
*cib_diff = NULL;
current_cib = the_cib;
/* Start processing the request... */
op = crm_element_value(request, F_CIB_OPERATION);
crm_element_value_int(request, F_CIB_CALLOPTS, &call_options);
rc = cib_get_operation_id(op, &call_type);
if (rc == pcmk_ok && privileged == FALSE) {
rc = cib_op_can_run(call_type, call_options, privileged, global_update);
}
rc2 = cib_op_prepare(call_type, request, &input, §ion);
if (rc == pcmk_ok) {
rc = rc2;
}
if (rc != pcmk_ok) {
crm_trace("Call setup failed: %s", pcmk_strerror(rc));
goto done;
} else if (cib_op_modifies(call_type) == FALSE) {
rc = cib_perform_op(op, call_options, cib_op_func(call_type), TRUE,
section, request, input, FALSE, &config_changed,
current_cib, &result_cib, NULL, &output);
CRM_CHECK(result_cib == NULL, free_xml(result_cib));
goto done;
}
/* Handle a valid write action */
global_update = crm_is_true(crm_element_value(request, F_CIB_GLOBAL_UPDATE));
if (global_update) {
/* legacy code */
manage_counters = FALSE;
call_options |= cib_force_diff;
crm_trace("Global update detected");
CRM_CHECK(call_type == 3 || call_type == 4, crm_err("Call type: %d", call_type);
crm_log_xml_err(request, "bad op"));
}
if (rc == pcmk_ok) {
ping_modified_since = TRUE;
if (call_options & cib_inhibit_bcast) {
/* skip */
crm_trace("Skipping update: inhibit broadcast");
manage_counters = FALSE;
}
if (is_not_set(call_options, cib_dryrun) && safe_str_eq(section, XML_CIB_TAG_STATUS)) {
/* Copying large CIBs accounts for a huge percentage of our CIB usage */
call_options |= cib_zero_copy;
} else {
clear_bit(call_options, cib_zero_copy);
}
/* result_cib must not be modified after cib_perform_op() returns */
rc = cib_perform_op(op, call_options, cib_op_func(call_type), FALSE,
section, request, input, manage_counters, &config_changed,
current_cib, &result_cib, cib_diff, &output);
if (manage_counters == FALSE) {
/* Legacy code
* If the diff is NULL at this point, its because nothing changed
*/
config_changed = cib_config_changed(NULL, NULL, cib_diff);
}
/* Always write to disk for replace ops,
* this also negates the need to detect ordering changes
*/
if (crm_str_eq(CIB_OP_REPLACE, op, TRUE)) {
config_changed = TRUE;
}
}
if (rc == pcmk_ok && is_not_set(call_options, cib_dryrun)) {
if(is_not_set(call_options, cib_zero_copy)) {
rc = activateCibXml(result_cib, config_changed, op);
}
if (rc == pcmk_ok && cib_internal_config_changed(*cib_diff)) {
cib_read_config(config_hash, result_cib);
}
if (crm_str_eq(CIB_OP_REPLACE, op, TRUE)) {
if (section == NULL) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_TAG_CIB)) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_CIB_TAG_NODES)) {
send_r_notify = TRUE;
} else if (safe_str_eq(section, XML_CIB_TAG_STATUS)) {
send_r_notify = TRUE;
}
} else if (crm_str_eq(CIB_OP_ERASE, op, TRUE)) {
send_r_notify = TRUE;
}
mainloop_timer_stop(digest_timer);
mainloop_timer_start(digest_timer);
} else if (rc == -pcmk_err_schema_validation) {
CRM_ASSERT(is_not_set(call_options, cib_zero_copy));
if (output != NULL) {
crm_log_xml_info(output, "cib:output");
free_xml(output);
}
output = result_cib;
} else {
if(is_not_set(call_options, cib_zero_copy)) {
free_xml(result_cib);
}
}
if ((call_options & cib_inhibit_notify) == 0) {
const char *client = crm_element_value(request, F_CIB_CLIENTNAME);
crm_trace("Sending notifications");
cib_diff_notify(call_options, client, call_id, op, input, rc, *cib_diff);
}
if (send_r_notify) {
const char *origin = crm_element_value(request, F_ORIG);
cib_replace_notify(origin, the_cib, rc, *cib_diff);
}
xml_log_patchset(LOG_TRACE, "cib:diff", *cib_diff);
done:
if ((call_options & cib_discard_reply) == 0) {
const char *caller = crm_element_value(request, F_CIB_CLIENTID);
*reply = create_xml_node(NULL, "cib-reply");
crm_xml_add(*reply, F_TYPE, T_CIB);
crm_xml_add(*reply, F_CIB_OPERATION, op);
crm_xml_add(*reply, F_CIB_CALLID, call_id);
crm_xml_add(*reply, F_CIB_CLIENTID, caller);
crm_xml_add_int(*reply, F_CIB_CALLOPTS, call_options);
crm_xml_add_int(*reply, F_CIB_RC, rc);
if (output != NULL) {
crm_trace("Attaching reply output");
add_message_xml(*reply, F_CIB_CALLDATA, output);
}
crm_log_xml_explicit(*reply, "cib:reply");
}
crm_trace("cleanup");
if (cib_op_modifies(call_type) == FALSE && output != current_cib) {
free_xml(output);
output = NULL;
}
if (call_type >= 0) {
cib_op_cleanup(call_type, call_options, &input, &output);
}
crm_trace("done");
return rc;
}
