38 #include <sys/types.h> 44 #include <qb/qblist.h> 45 #include <qb/qbipc_common.h> 75 static uint8_t qdevice_can_operate = 1;
76 static void *qdevice_reg_conn = NULL;
77 static uint8_t qdevice_master_wins = 0;
79 static uint8_t two_node = 0;
81 static uint8_t wait_for_all = 0;
82 static uint8_t wait_for_all_status = 0;
83 static uint8_t wait_for_all_autoset = 0;
86 static int lowest_node_id = -1;
87 static int highest_node_id = -1;
89 #define DEFAULT_LMS_WIN 10000 90 static uint8_t last_man_standing = 0;
93 static uint8_t allow_downscale = 0;
94 static uint32_t ev_barrier = 0;
96 static uint8_t ev_tracking = 0;
97 static uint32_t ev_tracking_barrier = 0;
98 static int ev_tracking_fd = -1;
113 struct qb_ipc_request_header header __attribute__((aligned(8)));
123 struct qb_ipc_request_header header __attribute__((aligned(8)));
129 struct qb_ipc_request_header header __attribute__((aligned(8)));
144 #define MESSAGE_REQ_EXEC_VOTEQUORUM_NODEINFO 0 145 #define MESSAGE_REQ_EXEC_VOTEQUORUM_RECONFIGURE 1 146 #define MESSAGE_REQ_EXEC_VOTEQUORUM_QDEVICE_REG 2 147 #define MESSAGE_REQ_EXEC_VOTEQUORUM_QDEVICE_RECONFIGURE 3 149 static void votequorum_exec_send_expectedvotes_notification(
void);
150 static int votequorum_exec_send_quorum_notification(
void *conn, uint64_t context);
151 static int votequorum_exec_send_nodelist_notification(
void *conn, uint64_t context);
153 #define VOTEQUORUM_RECONFIG_PARAM_EXPECTED_VOTES 1 154 #define VOTEQUORUM_RECONFIG_PARAM_NODE_VOTES 2 155 #define VOTEQUORUM_RECONFIG_PARAM_CANCEL_WFA 3 157 static int votequorum_exec_send_reconfigure(uint8_t
param,
unsigned int nodeid, uint32_t
value);
162 #define VOTEQUORUM_QDEVICE_OPERATION_UNREGISTER 0 163 #define VOTEQUORUM_QDEVICE_OPERATION_REGISTER 1 169 #define NODE_FLAGS_QUORATE 1 170 #define NODE_FLAGS_LEAVING 2 171 #define NODE_FLAGS_WFASTATUS 4 172 #define NODE_FLAGS_FIRST 8 173 #define NODE_FLAGS_QDEVICE_REGISTERED 16 174 #define NODE_FLAGS_QDEVICE_ALIVE 32 175 #define NODE_FLAGS_QDEVICE_CAST_VOTE 64 176 #define NODE_FLAGS_QDEVICE_MASTER_WINS 128 190 struct qb_list_head list;
197 static uint8_t quorum;
198 static uint8_t cluster_is_quorate;
205 static struct qb_list_head cluster_members_list;
209 static int quorum_members_entries = 0;
210 static int previous_quorum_members_entries = 0;
211 static int atb_nodelist_entries = 0;
218 static int cluster_nodes_entries = 0;
227 struct qb_list_head list;
231 static struct qb_list_head trackers_list;
238 static int qdevice_timer_set = 0;
240 static int last_man_standing_timer_set = 0;
241 static int sync_nodeinfo_sent = 0;
242 static int sync_wait_for_poll_or_timeout = 0;
248 static int sync_in_progress = 0;
250 static void votequorum_sync_init (
251 const unsigned int *trans_list,
252 size_t trans_list_entries,
253 const unsigned int *member_list,
254 size_t member_list_entries,
257 static int votequorum_sync_process (
void);
258 static void votequorum_sync_activate (
void);
259 static void votequorum_sync_abort (
void);
268 static int votequorum_exec_exit_fn (
void);
269 static int votequorum_exec_send_nodeinfo(uint32_t
nodeid);
271 static void message_handler_req_exec_votequorum_nodeinfo (
274 static void exec_votequorum_nodeinfo_endian_convert (
void *message);
276 static void message_handler_req_exec_votequorum_reconfigure (
279 static void exec_votequorum_reconfigure_endian_convert (
void *message);
281 static void message_handler_req_exec_votequorum_qdevice_reg (
284 static void exec_votequorum_qdevice_reg_endian_convert (
void *message);
286 static void message_handler_req_exec_votequorum_qdevice_reconfigure (
289 static void exec_votequorum_qdevice_reconfigure_endian_convert (
void *message);
295 .exec_endian_convert_fn = exec_votequorum_nodeinfo_endian_convert
298 .exec_handler_fn = message_handler_req_exec_votequorum_reconfigure,
299 .exec_endian_convert_fn = exec_votequorum_reconfigure_endian_convert
302 .exec_handler_fn = message_handler_req_exec_votequorum_qdevice_reg,
303 .exec_endian_convert_fn = exec_votequorum_qdevice_reg_endian_convert
306 .exec_handler_fn = message_handler_req_exec_votequorum_qdevice_reconfigure,
307 .exec_endian_convert_fn = exec_votequorum_qdevice_reconfigure_endian_convert
315 static int quorum_lib_init_fn (
void *conn);
317 static int quorum_lib_exit_fn (
void *conn);
319 static void qdevice_timer_fn(
void *arg);
321 static void message_handler_req_lib_votequorum_getinfo (
void *conn,
322 const void *message);
324 static void message_handler_req_lib_votequorum_setexpected (
void *conn,
325 const void *message);
327 static void message_handler_req_lib_votequorum_setvotes (
void *conn,
328 const void *message);
330 static void message_handler_req_lib_votequorum_trackstart (
void *conn,
331 const void *message);
333 static void message_handler_req_lib_votequorum_trackstop (
void *conn,
334 const void *message);
336 static void message_handler_req_lib_votequorum_qdevice_register (
void *conn,
337 const void *message);
339 static void message_handler_req_lib_votequorum_qdevice_unregister (
void *conn,
340 const void *message);
342 static void message_handler_req_lib_votequorum_qdevice_update (
void *conn,
343 const void *message);
345 static void message_handler_req_lib_votequorum_qdevice_poll (
void *conn,
346 const void *message);
348 static void message_handler_req_lib_votequorum_qdevice_master_wins (
void *conn,
349 const void *message);
358 .lib_handler_fn = message_handler_req_lib_votequorum_setexpected,
362 .lib_handler_fn = message_handler_req_lib_votequorum_setvotes,
366 .lib_handler_fn = message_handler_req_lib_votequorum_trackstart,
370 .lib_handler_fn = message_handler_req_lib_votequorum_trackstop,
374 .lib_handler_fn = message_handler_req_lib_votequorum_qdevice_register,
378 .lib_handler_fn = message_handler_req_lib_votequorum_qdevice_unregister,
382 .lib_handler_fn = message_handler_req_lib_votequorum_qdevice_update,
386 .lib_handler_fn = message_handler_req_lib_votequorum_qdevice_poll,
390 .lib_handler_fn = message_handler_req_lib_votequorum_qdevice_master_wins,
396 .
name =
"corosync vote quorum service v1.0",
399 .private_data_size =
sizeof (
struct quorum_pd),
402 .lib_init_fn = quorum_lib_init_fn,
403 .lib_exit_fn = quorum_lib_exit_fn,
404 .lib_engine = quorum_lib_service,
406 .exec_init_fn = votequorum_exec_init_fn,
407 .exec_exit_fn = votequorum_exec_exit_fn,
408 .exec_engine = votequorum_exec_engine,
410 .sync_init = votequorum_sync_init,
411 .sync_process = votequorum_sync_process,
412 .sync_activate = votequorum_sync_activate,
413 .sync_abort = votequorum_sync_abort
418 return (&votequorum_service_engine);
423 .
name =
"corosync_votequorum",
433 #define max(a,b) (((a) > (b)) ? (a) : (b)) 435 static void node_add_ordered(
struct cluster_node *newnode)
438 struct qb_list_head *tmp;
442 qb_list_for_each(tmp, &cluster_members_list) {
450 qb_list_add(&newnode->
list, &cluster_members_list);
452 qb_list_add_tail(&newnode->
list, &node->
list);
461 struct qb_list_head *tmp;
466 cl = (
struct cluster_node *)&cluster_nodes[cluster_nodes_entries];
467 cluster_nodes_entries++;
469 qb_list_for_each(tmp, &cluster_members_list) {
488 node_add_ordered(cl);
497 static struct cluster_node *find_node_by_nodeid(
unsigned int nodeid)
500 struct qb_list_head *tmp;
514 qb_list_for_each(tmp, &cluster_members_list) {
526 static void get_lowest_node_id(
void)
529 struct qb_list_head *tmp;
535 qb_list_for_each(tmp, &cluster_members_list) {
538 (node->
node_id < lowest_node_id)) {
539 lowest_node_id = node->
node_id;
548 static void get_highest_node_id(
void)
551 struct qb_list_head *tmp;
557 qb_list_for_each(tmp, &cluster_members_list) {
560 (node->
node_id > highest_node_id)) {
561 highest_node_id = node->
node_id;
570 static int check_low_node_id_partition(
void)
573 struct qb_list_head *tmp;
578 qb_list_for_each(tmp, &cluster_members_list) {
581 (node->
node_id == lowest_node_id)) {
590 static int check_high_node_id_partition(
void)
593 struct qb_list_head *tmp;
598 qb_list_for_each(tmp, &cluster_members_list) {
601 (node->
node_id == highest_node_id)) {
610 static int is_in_nodelist(
int nodeid,
unsigned int *members,
int entries)
615 for (i=0; i<entries; i++) {
616 if (nodeid == members[i]) {
638 static int check_auto_tie_breaker(
void)
645 res = check_low_node_id_partition();
651 res = check_high_node_id_partition();
658 for (i=0; i < atb_nodelist_entries; i++) {
659 if (is_in_nodelist(atb_nodelist[i], quorum_members, quorum_members_entries)) {
666 for (j=0; j<i; j++) {
667 if (is_in_nodelist(atb_nodelist[j], previous_quorum_members, previous_quorum_members_entries)) {
694 static void parse_atb_string(
char *atb_string)
702 if (!strcmp(atb_string,
"lowest"))
705 if (!strcmp(atb_string,
"highest"))
708 if (atoi(atb_string)) {
710 atb_nodelist_entries = 0;
713 num = strtol(ptr, &ptr, 10);
716 atb_nodelist[atb_nodelist_entries++] = num;
720 if (atb_nodelist_entries) {
729 log_printf(
LOGSYS_LEVEL_WARNING,
"auto_tie_breaker_nodes is not valid. It must be 'lowest', 'highest' or a space-separated list of node IDs. auto_tie_breaker is disabled");
735 static int check_qdevice_master(
void)
738 struct qb_list_head *tmp;
743 qb_list_for_each(tmp, &cluster_members_list) {
756 static void decode_flags(uint32_t
flags)
761 "flags: quorate: %s Leaving: %s WFA Status: %s First: %s Qdevice: %s QdeviceAlive: %s QdeviceCastVote: %s QdeviceMasterWins: %s",
777 static int load_ev_tracking_barrier(
void)
780 char filename[PATH_MAX];
784 snprintf(filename,
sizeof(filename) - 1,
"%s/ev_tracking",
get_state_dir());
786 ev_tracking_fd = open(filename, O_RDWR, 0700);
787 if (ev_tracking_fd != -1) {
788 res = read (ev_tracking_fd, &ev_tracking_barrier,
sizeof(uint32_t));
789 close(ev_tracking_fd);
790 if (res ==
sizeof (uint32_t)) {
796 ev_tracking_barrier = 0;
798 ev_tracking_fd = open (filename, O_CREAT|O_RDWR, 0700);
799 if (ev_tracking_fd != -1) {
800 res = write (ev_tracking_fd, &ev_tracking_barrier,
sizeof (uint32_t));
801 if ((res == -1) || (res !=
sizeof (uint32_t))) {
803 "Unable to write to %s", filename);
805 close(ev_tracking_fd);
810 "Unable to create %s file", filename);
817 static void update_wait_for_all_status(uint8_t wfa_status)
821 wait_for_all_status = wfa_status;
822 if (wait_for_all_status) {
828 wait_for_all_status);
833 static void update_two_node(
void)
852 static void update_qdevice_can_operate(uint8_t status)
856 qdevice_can_operate = status;
857 icmap_set_uint8(
"runtime.votequorum.qdevice_can_operate", qdevice_can_operate);
862 static void update_qdevice_master_wins(uint8_t allow)
866 qdevice_master_wins = allow;
867 icmap_set_uint8(
"runtime.votequorum.qdevice_master_wins", qdevice_master_wins);
872 static void update_ev_tracking_barrier(uint32_t ev_t_barrier)
878 ev_tracking_barrier = ev_t_barrier;
879 icmap_set_uint32(
"runtime.votequorum.ev_tracking_barrier", ev_tracking_barrier);
881 if (lseek (ev_tracking_fd, 0, SEEK_SET) != 0) {
883 "Unable to update ev_tracking_barrier on disk data!!!");
888 res = write (ev_tracking_fd, &ev_tracking_barrier,
sizeof (uint32_t));
889 if (res !=
sizeof (uint32_t)) {
891 "Unable to update ev_tracking_barrier on disk data!!!");
893 #ifdef HAVE_FDATASYNC 894 fdatasync(ev_tracking_fd);
896 fsync(ev_tracking_fd);
906 static int calculate_quorum(
int allow_decrease,
unsigned int max_expected,
unsigned int *ret_total_votes)
908 struct qb_list_head *nodelist;
910 unsigned int total_votes = 0;
911 unsigned int highest_expected = 0;
912 unsigned int newquorum, q1, q2;
913 unsigned int total_nodes = 0;
917 if ((allow_downscale) && (allow_decrease) && (max_expected)) {
918 max_expected =
max(ev_barrier, max_expected);
921 qb_list_for_each(nodelist, &cluster_members_list) {
922 node = qb_list_entry(nodelist,
struct cluster_node, list);
929 total_votes += node->
votes;
936 total_votes += qdevice->
votes;
940 if (max_expected > 0) {
941 highest_expected = max_expected;
948 q1 = (highest_expected + 2) / 2;
949 q2 = (total_votes + 2) / 2;
950 newquorum =
max(q1, q2);
956 if (!allow_decrease) {
957 newquorum =
max(quorum, newquorum);
967 if (two_node && total_nodes <= 2) {
971 if (ret_total_votes) {
972 *ret_total_votes = total_votes;
979 static void update_node_expected_votes(
int new_expected_votes)
981 struct qb_list_head *nodelist;
984 if (new_expected_votes) {
985 qb_list_for_each(nodelist, &cluster_members_list) {
986 node = qb_list_entry(nodelist,
struct cluster_node, list);
995 static void are_we_quorate(
unsigned int total_votes)
998 int quorum_change = 0;
1006 if ((wait_for_all) && (wait_for_all_status)) {
1009 "Waiting for all cluster members. " 1010 "Current votes: %d expected_votes: %d",
1012 assert(!cluster_is_quorate);
1015 update_wait_for_all_status(0);
1018 if (quorum > total_votes) {
1022 get_lowest_node_id();
1023 get_highest_node_id();
1026 if ((auto_tie_breaker !=
ATB_NONE) &&
1030 (previous_quorum_members_entries - quorum_members_entries < quorum) &&
1031 (check_auto_tie_breaker() == 1)) {
1035 if ((qdevice_master_wins) &&
1037 (check_qdevice_master() == 1)) {
1042 if (cluster_is_quorate && !quorate) {
1046 if (!cluster_is_quorate && quorate) {
1052 if (cluster_is_quorate) {
1060 update_wait_for_all_status(0);
1062 update_wait_for_all_status(1);
1066 if ((quorum_change) &&
1067 (sync_in_progress == 0)) {
1068 quorum_callback(quorum_members, quorum_members_entries,
1069 cluster_is_quorate, &quorum_ringid);
1070 votequorum_exec_send_quorum_notification(NULL, 0L);
1076 static void get_total_votes(
unsigned int *totalvotes,
unsigned int *current_members)
1078 unsigned int total_votes = 0;
1079 unsigned int cluster_members = 0;
1080 struct qb_list_head *nodelist;
1085 qb_list_for_each(nodelist, &cluster_members_list) {
1086 node = qb_list_entry(nodelist,
struct cluster_node, list);
1089 total_votes += node->
votes;
1093 if (qdevice->
votes) {
1094 total_votes += qdevice->
votes;
1098 *totalvotes = total_votes;
1099 *current_members = cluster_members;
1107 static void recalculate_quorum(
int allow_decrease,
int by_current_nodes)
1109 unsigned int total_votes = 0;
1110 unsigned int cluster_members = 0;
1114 get_total_votes(&total_votes, &cluster_members);
1116 if (!by_current_nodes) {
1117 cluster_members = 0;
1126 votequorum_exec_send_expectedvotes_notification();
1129 if ((ev_tracking) &&
1134 quorum = calculate_quorum(allow_decrease, cluster_members, &total_votes);
1135 update_node_expected_votes(cluster_members);
1137 are_we_quorate(total_votes);
1146 static int votequorum_read_nodelist_configuration(uint32_t *
votes,
1148 uint32_t *expected_votes)
1151 const char *iter_key;
1153 uint32_t our_pos, node_pos, last_node_pos=-1;
1154 uint32_t nodecount = 0;
1155 uint32_t nodelist_expected_votes = 0;
1156 uint32_t node_votes = 0;
1163 "No nodelist defined or our node is not in the nodelist");
1171 res = sscanf(iter_key,
"nodelist.node.%u.%s", &node_pos, tmp_key);
1181 if (last_node_pos == node_pos) {
1184 last_node_pos = node_pos;
1193 nodelist_expected_votes = nodelist_expected_votes + node_votes;
1195 if (node_pos == our_pos) {
1196 *votes = node_votes;
1200 *expected_votes = nodelist_expected_votes;
1210 static int votequorum_qdevice_is_configured(uint32_t *qdevice_votes)
1212 char *qdevice_model = NULL;
1218 if (strlen(qdevice_model)) {
1220 *qdevice_votes = -1;
1228 update_qdevice_can_operate(1);
1232 free(qdevice_model);
1240 #define VOTEQUORUM_READCONFIG_STARTUP 0 1241 #define VOTEQUORUM_READCONFIG_RUNTIME 1 1243 static char *votequorum_readconfig(
int runtime)
1245 uint32_t node_votes = 0, qdevice_votes = 0;
1246 uint32_t node_expected_votes = 0, expected_votes = 0;
1247 uint32_t node_count = 0;
1249 int have_nodelist, have_qdevice;
1250 char *atb_string = NULL;
1268 auto_tie_breaker = initial_auto_tie_breaker;
1276 have_nodelist = votequorum_read_nodelist_configuration(&node_votes, &node_count, &node_expected_votes);
1277 have_qdevice = votequorum_qdevice_is_configured(&qdevice_votes);
1286 error = (
char *)
"configuration error: nodelist or quorum.expected_votes must be configured!";
1299 if ((two_node) && (have_qdevice)) {
1301 error = (
char *)
"configuration error: two_node and quorum device cannot be configured at the same time!";
1310 update_qdevice_can_operate(0);
1321 wait_for_all_autoset = 1;
1323 (void)
icmap_get_uint8(
"quorum.last_man_standing", &last_man_standing);
1324 (void)
icmap_get_uint32(
"quorum.last_man_standing_window", &last_man_standing_window);
1325 (void)
icmap_get_uint8(
"quorum.expected_votes_tracking", &ev_tracking);
1338 "auto_tie_breaker_node: is meaningless if auto_tie_breaker is set to 0");
1342 if (atb && atb_string) {
1343 parse_atb_string(atb_string);
1346 initial_auto_tie_breaker = auto_tie_breaker;
1349 if (allow_downscale) {
1354 if (load_ev_tracking_barrier() < 0) {
1356 return ((
char *)
"Unable to load ev_tracking file!");
1358 update_ev_tracking_barrier(ev_tracking_barrier);
1368 if (wait_for_all_autoset) {
1369 wait_for_all = two_node;
1375 if (two_node && auto_tie_breaker !=
ATB_NONE) {
1385 if ((auto_tie_breaker !=
ATB_NONE) && (node_expected_votes % 2) &&
1387 if (last_man_standing) {
1396 error = (
char *)
"configuration error: auto_tie_breaker & last_man_standing not available in odd sized cluster";
1415 if ((have_qdevice) && (last_man_standing)) {
1417 error = (
char *)
"configuration error: quorum.device is not compatible with last_man_standing";
1422 update_qdevice_can_operate(0);
1426 if ((have_qdevice) && (auto_tie_breaker !=
ATB_NONE)) {
1428 error = (
char *)
"configuration error: quorum.device is not compatible with auto_tie_breaker";
1433 update_qdevice_can_operate(0);
1437 if ((have_qdevice) && (allow_downscale)) {
1439 error = (
char *)
"configuration error: quorum.device is not compatible with allow_downscale";
1444 update_qdevice_can_operate(0);
1453 if ((expected_votes) && (have_qdevice) && (qdevice_votes == -1)) {
1455 error = (
char *)
"configuration error: quorum.device.votes must be specified when quorum.expected_votes is set";
1460 update_qdevice_can_operate(0);
1469 if ((have_qdevice) &&
1470 (qdevice_votes == -1) &&
1472 (node_count != node_expected_votes)) {
1474 error = (
char *)
"configuration error: quorum.device.votes must be specified when not all nodes votes 1";
1479 update_qdevice_can_operate(0);
1487 if ((qdevice_votes > 0) && (expected_votes)) {
1488 int delta = expected_votes - qdevice_votes;
1491 error = (
char *)
"configuration error: quorum.device.votes is too high or expected_votes is too low";
1496 update_qdevice_can_operate(0);
1505 if ((have_qdevice) &&
1506 (qdevice_votes == -1) &&
1507 (!expected_votes) &&
1509 (node_count == node_expected_votes)) {
1510 qdevice_votes = node_expected_votes - 1;
1511 node_expected_votes = node_expected_votes + qdevice_votes;
1517 log_printf(
LOGSYS_LEVEL_DEBUG,
"ev_tracking=%d, ev_tracking_barrier = %d: expected_votes = %d\n", ev_tracking, ev_tracking_barrier, expected_votes);
1520 expected_votes = ev_tracking_barrier;
1523 if (have_nodelist) {
1524 us->
votes = node_votes;
1531 if (expected_votes) {
1539 if (!have_qdevice) {
1543 if (qdevice_votes != -1) {
1544 qdevice->
votes = qdevice_votes;
1551 update_wait_for_all_status(1);
1553 }
else if (wait_for_all_autoset && wait_for_all_status) {
1558 update_wait_for_all_status(0);
1566 static void votequorum_refresh_config(
1568 const char *key_name,
1573 int old_votes, old_expected_votes;
1576 int32_t reload_status;
1584 if (
icmap_get_uint8(
"config.totemconfig_reload_in_progress", &reloading) ==
CS_OK && reloading) {
1589 if ( (strcmp(key_name,
"config.totemconfig_reload_in_progress") == 0) &&
1591 (reload_status !=
CS_OK) ) {
1596 if (strcmp(key_name,
"quorum.cancel_wait_for_all") == 0 &&
1606 old_votes = us->
votes;
1617 votequorum_exec_send_nodeinfo(us->
node_id);
1619 if (us->
votes != old_votes) {
1635 static void votequorum_exec_add_config_notification(
void)
1645 votequorum_refresh_config,
1647 &icmap_track_nodelist);
1651 votequorum_refresh_config,
1653 &icmap_track_quorum);
1657 votequorum_refresh_config,
1659 &icmap_track_reload);
1668 static int votequorum_exec_send_reconfigure(uint8_t
param,
unsigned int nodeid, uint32_t
value)
1671 struct iovec iov[1];
1679 req_exec_quorum_reconfigure.
_pad0 = 0;
1680 req_exec_quorum_reconfigure.
_pad1 = 0;
1681 req_exec_quorum_reconfigure.
_pad2 = 0;
1684 req_exec_quorum_reconfigure.header.size =
sizeof(req_exec_quorum_reconfigure);
1686 iov[0].iov_base = (
void *)&req_exec_quorum_reconfigure;
1687 iov[0].iov_len =
sizeof(req_exec_quorum_reconfigure);
1695 static int votequorum_exec_send_nodeinfo(uint32_t nodeid)
1698 struct iovec iov[1];
1704 node = find_node_by_nodeid(nodeid);
1709 memset(&req_exec_quorum_nodeinfo, 0,
sizeof(req_exec_quorum_nodeinfo));
1711 req_exec_quorum_nodeinfo.
votes = node->
votes;
1713 req_exec_quorum_nodeinfo.
flags = node->
flags;
1715 decode_flags(node->
flags);
1719 req_exec_quorum_nodeinfo.header.size =
sizeof(req_exec_quorum_nodeinfo);
1721 iov[0].iov_base = (
void *)&req_exec_quorum_nodeinfo;
1722 iov[0].iov_len =
sizeof(req_exec_quorum_nodeinfo);
1730 static int votequorum_exec_send_qdevice_reconfigure(
const char *
oldname,
const char *
newname)
1733 struct iovec iov[1];
1739 req_exec_quorum_qdevice_reconfigure.header.size =
sizeof(req_exec_quorum_qdevice_reconfigure);
1741 assert(strlen(oldname) <
sizeof(req_exec_quorum_qdevice_reconfigure.
oldname));
1742 strcpy(req_exec_quorum_qdevice_reconfigure.
oldname, oldname);
1744 assert(strlen(newname) <
sizeof(req_exec_quorum_qdevice_reconfigure.
newname));
1745 strcpy(req_exec_quorum_qdevice_reconfigure.
newname, newname);
1747 iov[0].iov_base = (
void *)&req_exec_quorum_qdevice_reconfigure;
1748 iov[0].iov_len =
sizeof(req_exec_quorum_qdevice_reconfigure);
1756 static int votequorum_exec_send_qdevice_reg(uint32_t
operation,
const char *qdevice_name_req)
1759 struct iovec iov[1];
1765 req_exec_quorum_qdevice_reg.header.size =
sizeof(req_exec_quorum_qdevice_reg);
1768 assert(strlen(qdevice_name_req) <
sizeof(req_exec_quorum_qdevice_reg.
qdevice_name));
1769 strcpy(req_exec_quorum_qdevice_reg.
qdevice_name, qdevice_name_req);
1771 iov[0].iov_base = (
void *)&req_exec_quorum_qdevice_reg;
1772 iov[0].iov_len =
sizeof(req_exec_quorum_qdevice_reg);
1780 static int votequorum_exec_send_quorum_notification(
void *conn, uint64_t context)
1783 struct qb_list_head *tmp;
1786 int cluster_members = 0;
1794 qb_list_for_each(tmp, &cluster_members_list) {
1805 res_lib_votequorum_notification->quorate = cluster_is_quorate;
1806 res_lib_votequorum_notification->context = context;
1807 res_lib_votequorum_notification->node_list_entries = cluster_members;
1809 res_lib_votequorum_notification->header.size = size;
1810 res_lib_votequorum_notification->header.error =
CS_OK;
1813 qb_list_for_each(tmp, &cluster_members_list) {
1815 res_lib_votequorum_notification->node_list[i].nodeid = node->
node_id;
1816 res_lib_votequorum_notification->node_list[i++].state = node->
state;
1820 res_lib_votequorum_notification->node_list[i++].state = qdevice->
state;
1831 qb_list_for_each(tmp, &trackers_list) {
1832 qpd = qb_list_entry(tmp,
struct quorum_pd, list);
1843 static int votequorum_exec_send_nodelist_notification(
void *conn, uint64_t context)
1848 struct qb_list_head *tmp;
1858 res_lib_votequorum_notification->node_list_entries = quorum_members_entries;
1859 res_lib_votequorum_notification->ring_id.nodeid = quorum_ringid.
nodeid;
1860 res_lib_votequorum_notification->ring_id.seq = quorum_ringid.
seq;
1861 res_lib_votequorum_notification->context = context;
1863 for (i=0; i<quorum_members_entries; i++) {
1864 res_lib_votequorum_notification->node_list[i] = quorum_members[i];
1868 res_lib_votequorum_notification->header.size = size;
1869 res_lib_votequorum_notification->header.error =
CS_OK;
1879 qb_list_for_each(tmp, &trackers_list) {
1880 qpd = qb_list_entry(tmp,
struct quorum_pd, list);
1891 static void votequorum_exec_send_expectedvotes_notification(
void)
1895 struct qb_list_head *tmp;
1902 res_lib_votequorum_expectedvotes_notification.header.size =
sizeof(res_lib_votequorum_expectedvotes_notification);
1903 res_lib_votequorum_expectedvotes_notification.header.error =
CS_OK;
1904 res_lib_votequorum_expectedvotes_notification.expected_votes = us->
expected_votes;
1906 qb_list_for_each(tmp, &trackers_list) {
1907 qpd = qb_list_entry(tmp,
struct quorum_pd, list);
1908 res_lib_votequorum_expectedvotes_notification.context = qpd->
tracking_context;
1910 sizeof(
struct res_lib_votequorum_expectedvotes_notification));
1916 static void exec_votequorum_qdevice_reconfigure_endian_convert (
void *message)
1923 static void message_handler_req_exec_votequorum_qdevice_reconfigure (
1924 const void *message,
1925 unsigned int nodeid)
1933 req_exec_quorum_qdevice_reconfigure->
oldname,
1934 req_exec_quorum_qdevice_reconfigure->
newname);
1936 if (!strcmp(req_exec_quorum_qdevice_reconfigure->
oldname, qdevice_name)) {
1939 strcpy(qdevice_name, req_exec_quorum_qdevice_reconfigure->
newname);
1950 static void exec_votequorum_qdevice_reg_endian_convert (
void *message)
1961 static void message_handler_req_exec_votequorum_qdevice_reg (
1962 const void *message,
1963 unsigned int nodeid)
1967 int wipe_qdevice_name = 1;
1969 struct qb_list_head *tmp;
1978 switch(req_exec_quorum_qdevice_reg->
operation)
1982 if (!strlen(qdevice_name)) {
1984 strcpy(qdevice_name, req_exec_quorum_qdevice_reg->
qdevice_name);
2003 if (!qdevice_reg_conn) {
2012 if (!strlen(qdevice_name)) {
2013 strcpy(qdevice_name, req_exec_quorum_qdevice_reg->
qdevice_name);
2019 if ((!strncmp(req_exec_quorum_qdevice_reg->
qdevice_name,
2023 votequorum_exec_send_nodeinfo(us->
node_id);
2026 "A new qdevice with different name (new: %s old: %s) is trying to register!",
2027 req_exec_quorum_qdevice_reg->
qdevice_name, qdevice_name);
2031 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2033 res_lib_votequorum_status.header.error = error;
2034 corosync_api->
ipc_response_send(qdevice_reg_conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2035 qdevice_reg_conn = NULL;
2038 qb_list_for_each(tmp, &cluster_members_list) {
2042 wipe_qdevice_name = 0;
2046 if (wipe_qdevice_name) {
2055 static void exec_votequorum_nodeinfo_endian_convert (
void *message)
2069 static void message_handler_req_exec_votequorum_nodeinfo (
2070 const void *message,
2071 unsigned int sender_nodeid)
2078 nodestate_t old_state;
2080 int allow_downgrade = 0;
2082 unsigned int nodeid = req_exec_quorum_nodeinfo->
nodeid;
2089 req_exec_quorum_nodeinfo->
votes,
2091 req_exec_quorum_nodeinfo->
flags);
2094 decode_flags(req_exec_quorum_nodeinfo->
flags);
2097 node = find_node_by_nodeid(nodeid);
2099 node = allocate_node(nodeid);
2114 old_votes = node->
votes;
2116 old_state = node->
state;
2117 old_flags = node->
flags;
2121 struct cluster_node *sender_node = find_node_by_nodeid(sender_nodeid);
2123 assert(sender_node != NULL);
2125 if ((!cluster_is_quorate) &&
2127 node->
votes = req_exec_quorum_nodeinfo->
votes;
2135 node->
flags = req_exec_quorum_nodeinfo->
flags;
2136 node->
votes = req_exec_quorum_nodeinfo->
votes;
2141 allow_downgrade = 1;
2145 if ((!cluster_is_quorate) &&
2147 allow_downgrade = 1;
2157 if ((last_man_standing) && (node->
votes > 1)) {
2159 "cluster nodes votes are set to 1. Disabling LMS.");
2160 last_man_standing = 0;
2161 if (last_man_standing_timer_set) {
2163 last_man_standing_timer_set = 0;
2171 (old_votes != node->
votes) ||
2173 (old_flags != node->
flags) ||
2174 (old_state != node->
state)) {
2175 recalculate_quorum(allow_downgrade, by_node);
2178 if ((wait_for_all) &&
2181 update_wait_for_all_status(0);
2187 static void exec_votequorum_reconfigure_endian_convert (
void *message)
2199 static void message_handler_req_exec_votequorum_reconfigure (
2200 const void *message,
2201 unsigned int nodeid)
2209 nodeid, req_exec_quorum_reconfigure->
nodeid);
2211 switch(req_exec_quorum_reconfigure->
param)
2214 update_node_expected_votes(req_exec_quorum_reconfigure->
value);
2215 votequorum_exec_send_expectedvotes_notification();
2216 update_ev_barrier(req_exec_quorum_reconfigure->
value);
2220 recalculate_quorum(1, 0);
2224 node = find_node_by_nodeid(req_exec_quorum_reconfigure->
nodeid);
2229 node->
votes = req_exec_quorum_reconfigure->
value;
2230 recalculate_quorum(1, 0);
2234 update_wait_for_all_status(0);
2236 req_exec_quorum_reconfigure->
nodeid);
2237 recalculate_quorum(0, 0);
2246 static int votequorum_exec_exit_fn (
void)
2256 if (allow_downscale) {
2258 ret = votequorum_exec_send_nodeinfo(us->
node_id);
2261 if ((ev_tracking) && (ev_tracking_fd != -1)) {
2262 close(ev_tracking_fd);
2270 static void votequorum_set_icmap_ro_keys(
void)
2290 qb_list_init(&cluster_members_list);
2291 qb_list_init(&trackers_list);
2294 memset(cluster_nodes, 0,
sizeof(cluster_nodes));
2302 return ((
char *)
"Could not allocate node.");
2313 return ((
char *)
"Could not allocate node.");
2326 recalculate_quorum(0, 0);
2331 votequorum_set_icmap_ro_keys();
2336 votequorum_exec_add_config_notification();
2341 votequorum_exec_send_nodeinfo(us->
node_id);
2352 static void votequorum_last_man_standing_timer_fn(
void *arg)
2356 last_man_standing_timer_set = 0;
2357 if (cluster_is_quorate) {
2358 recalculate_quorum(1,1);
2364 static void votequorum_sync_init (
2365 const unsigned int *trans_list,
size_t trans_list_entries,
2366 const unsigned int *member_list,
size_t member_list_entries,
2376 sync_in_progress = 1;
2377 sync_nodeinfo_sent = 0;
2378 sync_wait_for_poll_or_timeout = 0;
2380 if (member_list_entries > 1) {
2390 for (i = 0; i < quorum_members_entries; i++) {
2392 for (j = 0; j < member_list_entries; j++) {
2393 if (quorum_members[i] == member_list[j]) {
2400 node = find_node_by_nodeid(quorum_members[i]);
2407 if (last_man_standing) {
2408 if (((member_list_entries >= quorum) && (left_nodes)) ||
2409 ((member_list_entries <= quorum) && (auto_tie_breaker !=
ATB_NONE) && (check_low_node_id_partition() == 1))) {
2410 if (last_man_standing_timer_set) {
2412 last_man_standing_timer_set = 0;
2414 corosync_api->
timer_add_duration((
unsigned long long)last_man_standing_window*1000000,
2415 NULL, votequorum_last_man_standing_timer_fn,
2416 &last_man_standing_timer);
2417 last_man_standing_timer_set = 1;
2421 memcpy(previous_quorum_members, quorum_members,
sizeof(
unsigned int) * quorum_members_entries);
2422 previous_quorum_members_entries = quorum_members_entries;
2424 memcpy(quorum_members, member_list,
sizeof(
unsigned int) * member_list_entries);
2425 quorum_members_entries = member_list_entries;
2426 memcpy(&quorum_ringid, ring_id,
sizeof(*ring_id));
2432 if (qdevice_timer_set) {
2435 corosync_api->
timer_add_duration((
unsigned long long)qdevice_sync_timeout*1000000, qdevice,
2436 qdevice_timer_fn, &qdevice_timer);
2437 qdevice_timer_set = 1;
2438 sync_wait_for_poll_or_timeout = 1;
2441 qdevice_name, qdevice_sync_timeout);
2447 static int votequorum_sync_process (
void)
2449 if (!sync_nodeinfo_sent) {
2450 votequorum_exec_send_nodeinfo(us->
node_id);
2452 if (strlen(qdevice_name)) {
2456 votequorum_exec_send_nodelist_notification(NULL, 0LL);
2457 sync_nodeinfo_sent = 1;
2471 static void votequorum_sync_activate (
void)
2473 recalculate_quorum(0, 0);
2474 quorum_callback(quorum_members, quorum_members_entries,
2475 cluster_is_quorate, &quorum_ringid);
2476 votequorum_exec_send_quorum_notification(NULL, 0L);
2478 sync_in_progress = 0;
2481 static void votequorum_sync_abort (
void)
2493 if (q_set_quorate_fn == NULL) {
2494 return ((
char *)
"Quorate function not set");
2498 quorum_callback = q_set_quorate_fn;
2501 &votequorum_service[0]);
2515 static int quorum_lib_init_fn (
void *conn)
2521 qb_list_init (&pd->
list);
2528 static int quorum_lib_exit_fn (
void *conn)
2535 qb_list_del (&quorum_pd->
list);
2536 qb_list_init (&quorum_pd->
list);
2548 static void qdevice_timer_fn(
void *arg)
2553 (!qdevice_timer_set)) {
2561 votequorum_exec_send_nodeinfo(us->
node_id);
2563 qdevice_timer_set = 0;
2564 sync_wait_for_poll_or_timeout = 0;
2573 static void message_handler_req_lib_votequorum_getinfo (
void *conn,
const void *message)
2578 unsigned int highest_expected = 0;
2579 unsigned int total_votes = 0;
2581 uint32_t nodeid = req_lib_votequorum_getinfo->
nodeid;
2591 node = find_node_by_nodeid(nodeid);
2594 struct qb_list_head *nodelist;
2596 qb_list_for_each(nodelist, &cluster_members_list) {
2597 iternode = qb_list_entry(nodelist,
struct cluster_node, list);
2602 total_votes += iternode->
votes;
2607 total_votes += qdevice->
votes;
2610 switch(node->
state) {
2621 res_lib_votequorum_getinfo.
state = node->
state;
2624 res_lib_votequorum_getinfo.
state = node->
state;
2625 res_lib_votequorum_getinfo.
votes = node->
votes;
2629 res_lib_votequorum_getinfo.
quorum = quorum;
2630 res_lib_votequorum_getinfo.
total_votes = total_votes;
2631 res_lib_votequorum_getinfo.
flags = 0;
2637 if (cluster_is_quorate) {
2643 if (last_man_standing) {
2646 if (auto_tie_breaker !=
ATB_NONE) {
2649 if (allow_downscale) {
2654 strcpy(res_lib_votequorum_getinfo.
qdevice_name, qdevice_name);
2673 res_lib_votequorum_getinfo.header.size =
sizeof(res_lib_votequorum_getinfo);
2675 res_lib_votequorum_getinfo.header.error = error;
2676 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_getinfo,
sizeof(res_lib_votequorum_getinfo));
2682 static void message_handler_req_lib_votequorum_setexpected (
void *conn,
const void *message)
2687 unsigned int newquorum;
2688 unsigned int total_votes;
2689 uint8_t allow_downscale_status = 0;
2693 allow_downscale_status = allow_downscale;
2694 allow_downscale = 0;
2699 newquorum = calculate_quorum(1, req_lib_votequorum_setexpected->
expected_votes, &total_votes);
2700 allow_downscale = allow_downscale_status;
2705 if (req_lib_votequorum_setexpected->
expected_votes < total_votes ||
2706 (cluster_is_quorate && (newquorum > total_votes))) {
2710 update_node_expected_votes(req_lib_votequorum_setexpected->
expected_votes);
2718 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2720 res_lib_votequorum_status.header.error = error;
2721 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2726 static void message_handler_req_lib_votequorum_setvotes (
void *conn,
const void *message)
2731 unsigned int newquorum;
2732 unsigned int total_votes;
2733 unsigned int saved_votes;
2739 nodeid = req_lib_votequorum_setvotes->
nodeid;
2740 node = find_node_by_nodeid(nodeid);
2749 saved_votes = node->
votes;
2750 node->
votes = req_lib_votequorum_setvotes->
votes;
2752 newquorum = calculate_quorum(1, 0, &total_votes);
2754 if (newquorum < total_votes / 2 ||
2755 newquorum > total_votes) {
2756 node->
votes = saved_votes;
2762 req_lib_votequorum_setvotes->
votes)) {
2767 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2769 res_lib_votequorum_status.header.error = error;
2770 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2775 static void message_handler_req_lib_votequorum_trackstart (
void *conn,
2776 const void *message)
2792 votequorum_exec_send_nodelist_notification(conn, req_lib_votequorum_trackstart->
context);
2793 votequorum_exec_send_quorum_notification(conn, req_lib_votequorum_trackstart->
context);
2811 qb_list_add (&quorum_pd->
list, &trackers_list);
2815 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2817 res_lib_votequorum_status.header.error = error;
2818 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2823 static void message_handler_req_lib_votequorum_trackstop (
void *conn,
2824 const void *message)
2835 qb_list_del (&quorum_pd->
list);
2836 qb_list_init (&quorum_pd->
list);
2841 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2843 res_lib_votequorum_status.header.error = error;
2844 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2849 static void message_handler_req_lib_votequorum_qdevice_register (
void *conn,
2850 const void *message)
2858 if (!qdevice_can_operate) {
2859 log_printf(
LOGSYS_LEVEL_INFO,
"Registration of quorum device is disabled by incorrect corosync.conf. See logs for more information");
2865 if ((!strncmp(req_lib_votequorum_qdevice_register->
name,
2870 "A new qdevice with different name (new: %s old: %s) is trying to re-register!",
2871 req_lib_votequorum_qdevice_register->
name, qdevice_name);
2876 if (qdevice_reg_conn != NULL) {
2878 "Registration request already in progress");
2882 qdevice_reg_conn = conn;
2884 req_lib_votequorum_qdevice_register->
name) != 0) {
2886 "Unable to send qdevice registration request to cluster");
2888 qdevice_reg_conn = NULL;
2897 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2899 res_lib_votequorum_status.header.error = error;
2900 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2905 static void message_handler_req_lib_votequorum_qdevice_unregister (
void *conn,
2906 const void *message)
2919 if (qdevice_timer_set) {
2921 qdevice_timer_set = 0;
2922 sync_wait_for_poll_or_timeout = 0;
2928 votequorum_exec_send_nodeinfo(us->
node_id);
2930 req_lib_votequorum_qdevice_unregister->
name);
2936 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2938 res_lib_votequorum_status.header.error = error;
2939 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2944 static void message_handler_req_lib_votequorum_qdevice_update (
void *conn,
2945 const void *message)
2958 votequorum_exec_send_qdevice_reconfigure(req_lib_votequorum_qdevice_update->
oldname,
2959 req_lib_votequorum_qdevice_update->
newname);
2965 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
2967 res_lib_votequorum_status.header.error = error;
2968 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
2973 static void message_handler_req_lib_votequorum_qdevice_poll (
void *conn,
2974 const void *message)
2983 if (!qdevice_can_operate) {
2989 if (!(req_lib_votequorum_qdevice_poll->ring_id.nodeid == quorum_ringid.
nodeid &&
2990 req_lib_votequorum_qdevice_poll->ring_id.seq == quorum_ringid.
seq)) {
2993 req_lib_votequorum_qdevice_poll->ring_id.nodeid, req_lib_votequorum_qdevice_poll->ring_id.seq,
2994 quorum_ringid.
nodeid, quorum_ringid.
seq);
3003 if (qdevice_timer_set) {
3005 qdevice_timer_set = 0;
3008 oldflags = us->
flags;
3012 if (req_lib_votequorum_qdevice_poll->
cast_vote) {
3018 if (us->
flags != oldflags) {
3019 votequorum_exec_send_nodeinfo(us->
node_id);
3022 corosync_api->
timer_add_duration((
unsigned long long)qdevice_timeout*1000000, qdevice,
3023 qdevice_timer_fn, &qdevice_timer);
3024 qdevice_timer_set = 1;
3025 sync_wait_for_poll_or_timeout = 0;
3031 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
3033 res_lib_votequorum_status.header.error = error;
3034 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
3039 static void message_handler_req_lib_votequorum_qdevice_master_wins (
void *conn,
3040 const void *message)
3045 uint32_t oldflags = us->
flags;
3049 if (!qdevice_can_operate) {
3060 if (req_lib_votequorum_qdevice_master_wins->
allow) {
3066 if (us->
flags != oldflags) {
3067 votequorum_exec_send_nodeinfo(us->
node_id);
3070 update_qdevice_master_wins(req_lib_votequorum_qdevice_master_wins->
allow);
3076 res_lib_votequorum_status.header.size =
sizeof(res_lib_votequorum_status);
3078 res_lib_votequorum_status.header.error = error;
3079 corosync_api->
ipc_response_send(conn, &res_lib_votequorum_status,
sizeof(res_lib_votequorum_status));
char name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
char newname[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
void *(* ipc_private_data_get)(void *conn)
#define VOTEQUORUM_INFO_QUORATE
char oldname[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define VOTEQUORUM_READCONFIG_STARTUP
void(* timer_delete)(corosync_timer_handle_t timer_handle)
int(* timer_add_duration)(unsigned long long nanoseconds_in_future, void *data, void(*timer_nf)(void *data), corosync_timer_handle_t *handle)
const char * icmap_iter_next(icmap_iter_t iter, size_t *value_len, icmap_value_types_t *type)
Return next item in iterator iter.
#define NODE_FLAGS_WFASTATUS
#define LOGSYS_LEVEL_INFO
#define NODE_FLAGS_QUORATE
#define VOTEQUORUM_QDEVICE_DEFAULT_SYNC_TIMEOUT
The corosync_service_engine struct.
void icmap_iter_finalize(icmap_iter_t iter)
Finalize iterator.
The req_lib_votequorum_qdevice_master_wins struct.
#define VOTEQUORUM_QDEVICE_OPERATION_UNREGISTER
#define MESSAGE_REQ_EXEC_VOTEQUORUM_RECONFIGURE
int(* ipc_response_send)(void *conn, const void *msg, size_t mlen)
char * votequorum_init(struct corosync_api_v1 *api, quorum_set_quorate_fn_t q_set_quorate_fn)
#define VOTEQUORUM_RECONFIG_PARAM_CANCEL_WFA
char name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
char qdevice_name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
The req_lib_votequorum_qdevice_unregister struct.
#define NODE_FLAGS_QDEVICE_MASTER_WINS
The res_lib_votequorum_quorum_notification struct.
The corosync_lib_handler struct.
unsigned int highest_expected
#define VOTEQUORUM_INFO_LAST_MAN_STANDING
#define VOTEQUORUM_INFO_WAIT_FOR_ALL
#define NODE_FLAGS_QDEVICE_CAST_VOTE
The res_lib_votequorum_status struct.
char name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define MESSAGE_REQ_EXEC_VOTEQUORUM_QDEVICE_RECONFIGURE
The corosync_exec_handler struct.
#define VOTEQUORUM_INFO_TWONODE
int(* totem_mcast)(const struct iovec *iovec, unsigned int iov_len, unsigned int guarantee)
char qdevice_name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define VOTEQUORUM_INFO_QDEVICE_REGISTERED
#define log_printf(level, format, args...)
unsigned int expected_votes
void(* exec_handler_fn)(const void *msg, unsigned int nodeid)
#define VOTEQUORUM_QDEVICE_NODEID
#define VOTEQUORUM_INFO_QDEVICE_MASTER_WINS
#define VOTEQUORUM_NODESTATE_MEMBER
cs_error_t icmap_get_int32(const char *key_name, int32_t *i32)
#define SERVICE_ID_MAKE(a, b)
#define ICMAP_TRACK_DELETE
#define ICMAP_KEYNAME_MAXLEN
Maximum length of key in icmap.
void(* quorum_set_quorate_fn_t)(const unsigned int *view_list, size_t view_list_entries, int quorate, struct memb_ring_id *)
#define VOTEQUORUM_QDEVICE_OPERATION_REGISTER
cs_error_t icmap_get_uint8(const char *key_name, uint8_t *u8)
void(* error_memory_failure)(void) __attribute__((noreturn))
#define VOTEQUORUM_INFO_ALLOW_DOWNSCALE
#define LOGSYS_LEVEL_WARNING
#define ICMAP_TRACK_MODIFY
#define VOTEQUORUM_INFO_QDEVICE_ALIVE
cs_error_t icmap_set_uint32(const char *key_name, uint32_t value)
unsigned int(* totem_nodeid_get)(void)
#define CS_TRACK_CHANGES_ONLY
The req_lib_votequorum_getinfo struct.
char name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define LOGSYS_LEVEL_ERROR
#define COROSYNC_LIB_FLOW_CONTROL_NOT_REQUIRED
The req_lib_votequorum_qdevice_update struct.
cs_error_t
The cs_error_t enum.
unsigned char track_flags
#define LOGSYS_LEVEL_DEBUG
LOGSYS_DECLARE_SUBSYS("VOTEQ")
The req_lib_votequorum_setvotes struct.
The corosync_api_v1 struct.
cs_error_t icmap_get_uint32(const char *key_name, uint32_t *u32)
The req_lib_votequorum_setexpected struct.
struct totem_message_header header
#define swab32(x)
The swab32 macro.
#define VOTEQUORUM_INFO_AUTO_TIE_BREAKER
struct corosync_service_engine * votequorum_get_service_engine_ver0(void)
The res_lib_votequorum_expectedvotes_notification struct.
The req_lib_votequorum_qdevice_register struct.
char * corosync_service_link_and_init(struct corosync_api_v1 *corosync_api, struct default_service *service)
Link and initialize a service.
char newname[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define VOTEQUORUM_NODESTATE_LEAVING
#define PROCESSOR_COUNT_MAX
unsigned int qdevice_votes
#define MESSAGE_REQ_EXEC_VOTEQUORUM_QDEVICE_REG
#define VOTEQUORUM_READCONFIG_RUNTIME
#define MESSAGE_REQ_EXEC_VOTEQUORUM_NODEINFO
The req_lib_votequorum_trackstart struct.
const char * get_state_dir(void)
#define VOTEQUORUM_RECONFIG_PARAM_NODE_VOTES
#define VOTEQUORUM_QDEVICE_MAX_NAME_LEN
qb_loop_timer_handle corosync_timer_handle_t
corosync_timer_handle_t
The req_lib_votequorum_qdevice_poll struct.
cs_error_t icmap_get_string(const char *key_name, char **str)
Shortcut for icmap_get for string type.
#define LOGSYS_LEVEL_CRIT
char oldname[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]
#define NODE_FLAGS_LEAVING
#define COROSYNC_LIB_FLOW_CONTROL_REQUIRED
#define LOGSYS_LEVEL_NOTICE
cs_error_t icmap_set_uint8(const char *key_name, uint8_t value)
void(* lib_handler_fn)(void *conn, const void *msg)
The res_lib_votequorum_getinfo struct.
#define VOTEQUORUM_NODESTATE_DEAD
cs_error_t icmap_set_ro_access(const char *key_name, int prefix, int ro_access)
Set read-only access for given key (key_name) or prefix, If prefix is set.
#define VOTEQUORUM_INFO_QDEVICE_CAST_VOTE
int(* ipc_dispatch_send)(void *conn, const void *msg, size_t mlen)
#define VOTEQUORUM_QDEVICE_DEFAULT_TIMEOUT
icmap_iter_t icmap_iter_init(const char *prefix)
Initialize iterator with given prefix.
struct memb_ring_id ring_id
uint64_t tracking_context
#define VOTEQUORUM_RECONFIG_PARAM_EXPECTED_VOTES
#define NODE_FLAGS_QDEVICE_ALIVE
qb_map_iter_t * icmap_iter_t
Itterator type.
Structure passed as new_value and old_value in change callback.
#define NODE_FLAGS_QDEVICE_REGISTERED
cs_error_t icmap_track_add(const char *key_name, int32_t track_type, icmap_notify_fn_t notify_fn, void *user_data, icmap_track_t *icmap_track)
Add tracking function for given key_name.
struct qb_ipc_request_header header __attribute__((aligned(8)))
#define ICMAP_TRACK_PREFIX
Whole prefix is tracked, instead of key only (so "totem." tracking means that "totem.nodeid", "totem.version", ...
unsigned int expected_votes