2 CTDB protocol marshalling
4 Copyright (C) Amitay Isaacs 2015
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef __CTDB_PROTOCOL_H__
21 #define __CTDB_PROTOCOL_H__
25 #define CTDB_MAGIC 0x43544442 /* CTDB */
26 #define CTDB_PROTOCOL 1
32 CTDB_REPLY_DMASTER = 3,
37 CTDB_REPLY_CONTROL = 8,
38 CTDB_REQ_KEEPALIVE = 9,
41 /* used on the domain socket, send a pdu to the local daemon */
42 #define CTDB_CURRENT_NODE 0xF0000001
43 /* send a broadcast to all nodes in the cluster, active or not */
44 #define CTDB_BROADCAST_ALL 0xF0000002
45 /* send a broadcast to all nodes in the current vnn map */
46 #define CTDB_BROADCAST_VNNMAP 0xF0000003
47 /* send a broadcast to all connected nodes */
48 #define CTDB_BROADCAST_CONNECTED 0xF0000004
49 /* send a broadcast to selected connected nodes */
50 #define CTDB_MULTICAST 0xF0000005
52 #define CTDB_UNKNOWN_PNN 0xFFFFFFFF
54 /* the key used to store persistent db sequence number */
55 #define CTDB_DB_SEQNUM_KEY "__db_sequence_number__"
57 struct ctdb_req_header {
60 uint32_t ctdb_version;
68 struct ctdb_req_call {
77 struct ctdb_reply_call {
82 struct ctdb_reply_error {
87 struct ctdb_req_dmaster {
95 struct ctdb_reply_dmaster {
102 #define CTDB_NULL_FUNC 0xFF000001
103 #define CTDB_FETCH_FUNC 0xFF000002
104 #define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003
112 #define CTDB_IMMEDIATE_MIGRATION 0x00000001
113 #define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002
114 #define CTDB_WANT_READONLY 0x00000004
118 /* SRVID to catch all messages */
119 #define CTDB_SRVID_ALL (~(uint64_t)0)
121 /* SRVID prefix used by CTDB */
122 #define CTDB_SRVID_PREFIX 0xF000000000000000LL
124 /* SRVID prefix used during recovery for pulling and pushing databases */
125 #define CTDB_SRVID_RECOVERY 0xF001000000000000LL
127 /* SRVID to assign of banning credits */
128 #define CTDB_SRVID_BANNING 0xF002000000000000LL
130 /* SRVID to inform of election data */
131 #define CTDB_SRVID_ELECTION 0xF100000000000000LL
133 /* SRVID to inform clients that the cluster has been reconfigured */
134 #define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL
136 /* SRVID to inform clients an IP address has been released */
137 #define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL
139 /* SRVID to inform clients that an IP address has been taken over */
140 #define CTDB_SRVID_TAKE_IP 0xF301000000000000LL
142 /* SRVID to inform recovery daemon of the node flags */
143 #define CTDB_SRVID_SET_NODE_FLAGS 0xF400000000000000LL
145 /* SRVID to inform recovery daemon to update public ip assignment */
146 #define CTDB_SRVID_RECD_UPDATE_IP 0xF500000000000000LL
148 /* SRVID to inform recovery daemon to migrate a set of records */
149 #define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL
151 /* SRVID to inform recovery daemon to detach a database */
152 #define CTDB_SRVID_DETACH_DATABASE 0xF701000000000000LL
154 /* SRVID to inform recovery daemon to dump talloc memdump to the log */
155 #define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL
157 /* SRVID to inform recovery daemon to send logs */
158 #define CTDB_SRVID_GETLOG 0xF801000000000000LL
160 /* SRVID to inform recovery daemon to clear logs */
161 #define CTDB_SRVID_CLEARLOG 0xF802000000000000LL
163 /* SRVID to inform recovery daemon to push the node flags to other nodes */
164 #define CTDB_SRVID_PUSH_NODE_FLAGS 0xF900000000000000LL
166 /* SRVID to inform recovery daemon to reload the nodes file */
167 #define CTDB_SRVID_RELOAD_NODES 0xFA00000000000000LL
169 /* SRVID to inform recovery daemon to perform a takeover run */
170 #define CTDB_SRVID_TAKEOVER_RUN 0xFB00000000000000LL
172 /* SRVID to inform recovery daemon to rebalance ips for a node. */
173 #define CTDB_SRVID_REBALANCE_NODE 0xFB01000000000000LL
175 /* SRVID to inform recovery daemon to stop takeover runs from occurring */
176 #define CTDB_SRVID_DISABLE_TAKEOVER_RUNS 0xFB03000000000000LL
178 /* SRVID to inform recovery daemon to stop recoveries from occurring */
179 #define CTDB_SRVID_DISABLE_RECOVERIES 0xFB04000000000000LL
181 /* SRVID to inform recovery daemon to disable the public ip checks */
182 #define CTDB_SRVID_DISABLE_IP_CHECK 0xFC00000000000000LL
184 /* SRVID to inform recovery daemon of ipreallocate resposnes from ctdbd */
185 #define CTDB_SRVID_TAKEOVER_RUN_RESPONSE 0xFD00000000000000LL
187 /* A range of ports reserved for registering a PID (top 8 bits)
188 * All ports matching the 8 top bits are reserved for exclusive use by
189 * registering a SRVID that matches the process-id of the requesting process
191 #define CTDB_SRVID_PID_RANGE 0x0000000000000000LL
193 /* A range of ports reserved for samba (top 8 bits)
194 * All ports matching the 8 top bits are reserved for exclusive use by
197 #define CTDB_SRVID_SAMBA_NOTIFY 0xFE00000000000000LL
198 #define CTDB_SRVID_SAMBA_RANGE 0xFE00000000000000LL
200 /* A range of ports reserved for a CTDB NFS server (top 8 bits)
201 * All ports matching the 8 top bits are reserved for exclusive use by
204 #define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL
206 /* A range of ports reserved for a CTDB ISCSI server (top 8 bits)
207 * All ports matching the 8 top bits are reserved for exclusive use by
210 #define CTDB_SRVID_ISCSID_RANGE 0xDE00000000000000LL
212 /* A range of ports reserved for testing (top 8 bits)
213 * All ports matching the 8 top bits are reserved for exclusive use by
216 #define CTDB_SRVID_TEST_RANGE 0xCE00000000000000LL
218 /* Range of ports reserved for traversals */
219 #define CTDB_SRVID_TRAVERSE_RANGE 0xBE00000000000000LL
222 enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
223 CTDB_CONTROL_STATISTICS = 1,
225 CTDB_CONTROL_PING = 3,
226 CTDB_CONTROL_GETDBPATH = 4,
227 CTDB_CONTROL_GETVNNMAP = 5,
228 CTDB_CONTROL_SETVNNMAP = 6,
229 CTDB_CONTROL_GET_DEBUG = 7,
230 CTDB_CONTROL_SET_DEBUG = 8,
231 CTDB_CONTROL_GET_DBMAP = 9,
232 CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
233 CTDB_CONTROL_SET_DMASTER = 11, /* obsolete */
235 CTDB_CONTROL_PULL_DB = 13,
236 CTDB_CONTROL_PUSH_DB = 14,
237 CTDB_CONTROL_GET_RECMODE = 15,
238 CTDB_CONTROL_SET_RECMODE = 16,
239 CTDB_CONTROL_STATISTICS_RESET = 17,
240 CTDB_CONTROL_DB_ATTACH = 18,
241 CTDB_CONTROL_SET_CALL = 19, /* obsolete */
242 CTDB_CONTROL_TRAVERSE_START = 20,
243 CTDB_CONTROL_TRAVERSE_ALL = 21,
244 CTDB_CONTROL_TRAVERSE_DATA = 22,
245 CTDB_CONTROL_REGISTER_SRVID = 23,
246 CTDB_CONTROL_DEREGISTER_SRVID = 24,
247 CTDB_CONTROL_GET_DBNAME = 25,
248 CTDB_CONTROL_ENABLE_SEQNUM = 26,
249 CTDB_CONTROL_UPDATE_SEQNUM = 27,
251 CTDB_CONTROL_DUMP_MEMORY = 29,
252 CTDB_CONTROL_GET_PID = 30,
253 CTDB_CONTROL_GET_RECMASTER = 31,
254 CTDB_CONTROL_SET_RECMASTER = 32,
255 CTDB_CONTROL_FREEZE = 33,
256 CTDB_CONTROL_THAW = 34,
257 CTDB_CONTROL_GET_PNN = 35,
258 CTDB_CONTROL_SHUTDOWN = 36,
259 CTDB_CONTROL_GET_MONMODE = 37,
264 CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */
265 CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */
266 CTDB_CONTROL_TCP_CLIENT = 44,
267 CTDB_CONTROL_TCP_ADD = 45,
268 CTDB_CONTROL_TCP_REMOVE = 46,
269 CTDB_CONTROL_STARTUP = 47,
270 CTDB_CONTROL_SET_TUNABLE = 48,
271 CTDB_CONTROL_GET_TUNABLE = 49,
272 CTDB_CONTROL_LIST_TUNABLES = 50,
273 CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */
274 CTDB_CONTROL_MODIFY_FLAGS = 52,
275 CTDB_CONTROL_GET_ALL_TUNABLES = 53,
276 CTDB_CONTROL_KILL_TCP = 54, /* obsolete */
277 CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55,
278 CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56,
279 CTDB_CONTROL_REGISTER_SERVER_ID = 57,
280 CTDB_CONTROL_UNREGISTER_SERVER_ID = 58,
281 CTDB_CONTROL_CHECK_SERVER_ID = 59,
282 CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
283 CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
284 CTDB_CONTROL_PERSISTENT_STORE = 62, /* obsolete */
285 CTDB_CONTROL_UPDATE_RECORD = 63,
286 CTDB_CONTROL_SEND_GRATUITOUS_ARP = 64,
287 CTDB_CONTROL_TRANSACTION_START = 65,
288 CTDB_CONTROL_TRANSACTION_COMMIT = 66,
289 CTDB_CONTROL_WIPE_DATABASE = 67,
291 CTDB_CONTROL_UPTIME = 69,
292 CTDB_CONTROL_START_RECOVERY = 70,
293 CTDB_CONTROL_END_RECOVERY = 71,
294 CTDB_CONTROL_RELOAD_NODES_FILE = 72,
296 CTDB_CONTROL_TRY_DELETE_RECORDS = 74,
297 CTDB_CONTROL_ENABLE_MONITOR = 75,
298 CTDB_CONTROL_DISABLE_MONITOR = 76,
299 CTDB_CONTROL_ADD_PUBLIC_IP = 77,
300 CTDB_CONTROL_DEL_PUBLIC_IP = 78,
301 CTDB_CONTROL_RUN_EVENTSCRIPTS = 79,
302 CTDB_CONTROL_GET_CAPABILITIES = 80,
303 CTDB_CONTROL_START_PERSISTENT_UPDATE = 81, /* obsolete */
304 CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82, /* obsolete */
305 CTDB_CONTROL_TRANS2_COMMIT = 83, /* obsolete */
306 CTDB_CONTROL_TRANS2_FINISHED = 84, /* obsolete */
307 CTDB_CONTROL_TRANS2_ERROR = 85, /* obsolete */
308 CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86, /* obsolete */
309 CTDB_CONTROL_RECD_PING = 87,
310 CTDB_CONTROL_RELEASE_IP = 88,
311 CTDB_CONTROL_TAKEOVER_IP = 89,
312 CTDB_CONTROL_GET_PUBLIC_IPS = 90,
313 CTDB_CONTROL_GET_NODEMAP = 91,
315 CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96,
316 CTDB_CONTROL_TRAVERSE_KILL = 97,
317 CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98,
318 CTDB_CONTROL_GET_RECLOCK_FILE = 99,
319 CTDB_CONTROL_SET_RECLOCK_FILE = 100,
320 CTDB_CONTROL_STOP_NODE = 101,
321 CTDB_CONTROL_CONTINUE_NODE = 102,
322 CTDB_CONTROL_SET_NATGWSTATE = 103, /* obsolete */
323 CTDB_CONTROL_SET_LMASTERROLE = 104,
324 CTDB_CONTROL_SET_RECMASTERROLE = 105,
325 CTDB_CONTROL_ENABLE_SCRIPT = 107,
326 CTDB_CONTROL_DISABLE_SCRIPT = 108,
327 CTDB_CONTROL_SET_BAN_STATE = 109,
328 CTDB_CONTROL_GET_BAN_STATE = 110,
329 CTDB_CONTROL_SET_DB_PRIORITY = 111,
330 CTDB_CONTROL_GET_DB_PRIORITY = 112,
331 CTDB_CONTROL_TRANSACTION_CANCEL = 113,
332 CTDB_CONTROL_REGISTER_NOTIFY = 114,
333 CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
334 CTDB_CONTROL_TRANS2_ACTIVE = 116, /* obsolete */
335 CTDB_CONTROL_GET_LOG = 117, /* obsolete */
336 CTDB_CONTROL_CLEAR_LOG = 118, /* obsolete */
337 CTDB_CONTROL_TRANS3_COMMIT = 119,
338 CTDB_CONTROL_GET_DB_SEQNUM = 120,
339 CTDB_CONTROL_DB_SET_HEALTHY = 121,
340 CTDB_CONTROL_DB_GET_HEALTH = 122,
341 CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123,
342 CTDB_CONTROL_GET_IFACES = 124,
343 CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
344 CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE = 126,
345 CTDB_CONTROL_GET_STAT_HISTORY = 127,
346 CTDB_CONTROL_SCHEDULE_FOR_DELETION = 128,
347 CTDB_CONTROL_SET_DB_READONLY = 129,
348 CTDB_CONTROL_CHECK_SRVIDS = 130,
349 CTDB_CONTROL_TRAVERSE_START_EXT = 131,
350 CTDB_CONTROL_GET_DB_STATISTICS = 132,
351 CTDB_CONTROL_SET_DB_STICKY = 133,
352 CTDB_CONTROL_RELOAD_PUBLIC_IPS = 134,
353 CTDB_CONTROL_TRAVERSE_ALL_EXT = 135,
354 CTDB_CONTROL_RECEIVE_RECORDS = 136,
355 CTDB_CONTROL_IPREALLOCATED = 137,
356 CTDB_CONTROL_GET_RUNSTATE = 138,
357 CTDB_CONTROL_DB_DETACH = 139,
358 CTDB_CONTROL_GET_NODES_FILE = 140,
359 CTDB_CONTROL_DB_FREEZE = 141,
360 CTDB_CONTROL_DB_THAW = 142,
361 CTDB_CONTROL_DB_TRANSACTION_START = 143,
362 CTDB_CONTROL_DB_TRANSACTION_COMMIT = 144,
363 CTDB_CONTROL_DB_TRANSACTION_CANCEL = 145,
364 CTDB_CONTROL_DB_PULL = 146,
365 CTDB_CONTROL_DB_PUSH_START = 147,
366 CTDB_CONTROL_DB_PUSH_CONFIRM = 148,
369 #define CTDB_MONITORING_ACTIVE 0
370 #define CTDB_MONITORING_DISABLED 1
372 #define MAX_COUNT_BUCKETS 16
373 #define MAX_HOT_KEYS 10
375 struct ctdb_latency_counter {
382 struct ctdb_statistics {
383 uint32_t num_clients;
386 uint32_t client_packets_sent;
387 uint32_t client_packets_recv;
388 uint32_t node_packets_sent;
389 uint32_t node_packets_recv;
390 uint32_t keepalive_packets_sent;
391 uint32_t keepalive_packets_recv;
395 uint32_t req_dmaster;
396 uint32_t reply_dmaster;
397 uint32_t reply_error;
398 uint32_t req_message;
399 uint32_t req_control;
400 uint32_t reply_control;
404 uint32_t req_message;
405 uint32_t req_control;
413 struct ctdb_latency_counter ctdbd;
414 struct ctdb_latency_counter recd;
418 uint32_t num_current;
419 uint32_t num_pending;
421 struct ctdb_latency_counter latency;
422 uint32_t buckets[MAX_COUNT_BUCKETS];
424 uint32_t total_calls;
425 uint32_t pending_calls;
426 uint32_t childwrite_calls;
427 uint32_t pending_childwrite_calls;
428 uint32_t memory_used;
429 uint32_t __last_counter; /* hack */
430 uint32_t max_hop_count;
431 uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
432 struct ctdb_latency_counter call_latency;
433 struct ctdb_latency_counter childwrite_latency;
434 uint32_t num_recoveries;
435 struct timeval statistics_start_time;
436 struct timeval statistics_current_time;
437 uint32_t total_ro_delegations;
438 uint32_t total_ro_revokes;
441 #define INVALID_GENERATION 1
442 /* table that contains the mapping between a hash value and lmaster
444 struct ctdb_vnn_map {
452 #define CTDB_DB_FLAGS_PERSISTENT 0x01
453 #define CTDB_DB_FLAGS_READONLY 0x02
454 #define CTDB_DB_FLAGS_STICKY 0x04
458 struct ctdb_dbid_map {
460 struct ctdb_dbid *dbs;
465 #define CTDB_LMASTER_ANY 0xffffffff
469 struct ctdb_pulldb_ext {
475 #define CTDB_RECOVERY_NORMAL 0
476 #define CTDB_RECOVERY_ACTIVE 1
478 #define CTDB_NUM_DB_PRIORITIES 3
481 the extended header for records in the ltdb
483 struct ctdb_ltdb_header {
487 #define CTDB_REC_FLAG_DEFAULT 0x00000000
488 #define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
489 #define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
490 #define CTDB_REC_FLAG_AUTOMATIC 0x00040000
491 #define CTDB_REC_RO_HAVE_DELEGATIONS 0x01000000
492 #define CTDB_REC_RO_HAVE_READONLY 0x02000000
493 #define CTDB_REC_RO_REVOKING_READONLY 0x04000000
494 #define CTDB_REC_RO_REVOKE_COMPLETE 0x08000000
495 #define CTDB_REC_RO_FLAGS (CTDB_REC_RO_HAVE_DELEGATIONS|\
496 CTDB_REC_RO_HAVE_READONLY|\
497 CTDB_REC_RO_REVOKING_READONLY|\
498 CTDB_REC_RO_REVOKE_COMPLETE)
502 struct ctdb_rec_data {
504 struct ctdb_ltdb_header *header;
508 struct ctdb_rec_buffer {
515 typedef int (*ctdb_rec_parser_func_t)(uint32_t reqid,
516 struct ctdb_ltdb_header *header,
517 TDB_DATA key, TDB_DATA data,
520 struct ctdb_traverse_start {
526 struct ctdb_traverse_all {
530 uint32_t client_reqid;
534 struct ctdb_traverse_start_ext {
538 bool withemptyrecords;
541 struct ctdb_traverse_all_ext {
545 uint32_t client_reqid;
547 bool withemptyrecords;
552 struct sockaddr_in ip;
553 struct sockaddr_in6 ip6;
556 struct ctdb_connection {
561 struct ctdb_tunable {
566 struct ctdb_var_list {
571 struct ctdb_node_flag_change {
577 /* all tunable variables go in here */
578 struct ctdb_tunable_list {
579 uint32_t max_redirect_count;
580 uint32_t seqnum_interval; /* unit is ms */
581 uint32_t control_timeout;
582 uint32_t traverse_timeout;
583 uint32_t keepalive_interval;
584 uint32_t keepalive_limit;
585 uint32_t recover_timeout;
586 uint32_t recover_interval;
587 uint32_t election_timeout;
588 uint32_t takeover_timeout;
589 uint32_t monitor_interval;
590 uint32_t tickle_update_interval;
591 uint32_t script_timeout;
592 uint32_t monitor_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
593 uint32_t script_unhealthy_on_timeout; /* obsolete */
594 uint32_t recovery_grace_period;
595 uint32_t recovery_ban_period;
596 uint32_t database_hash_size;
597 uint32_t database_max_dead;
598 uint32_t rerecovery_timeout;
599 uint32_t enable_bans;
600 uint32_t deterministic_public_ips;
601 uint32_t reclock_ping_period;
602 uint32_t no_ip_failback;
603 uint32_t disable_ip_failover;
604 uint32_t verbose_memory_names;
605 uint32_t recd_ping_timeout;
606 uint32_t recd_ping_failcount;
607 uint32_t log_latency_ms;
608 uint32_t reclock_latency_ms;
609 uint32_t recovery_drop_all_ips;
610 uint32_t verify_recovery_lock;
611 uint32_t vacuum_interval;
612 uint32_t vacuum_max_run_time;
613 uint32_t repack_limit;
614 uint32_t vacuum_limit;
615 uint32_t max_queue_depth_drop_msg;
616 uint32_t allow_unhealthy_db_read;
617 uint32_t stat_history_interval;
618 uint32_t deferred_attach_timeout;
619 uint32_t vacuum_fast_path_count;
620 uint32_t lcp2_public_ip_assignment;
621 uint32_t allow_client_db_attach;
622 uint32_t recover_pdb_by_seqnum;
623 uint32_t deferred_rebalance_on_node_add;
624 uint32_t fetch_collapse;
625 uint32_t hopcount_make_sticky;
626 uint32_t sticky_duration;
627 uint32_t sticky_pindown;
628 uint32_t no_ip_takeover;
629 uint32_t db_record_count_warn;
630 uint32_t db_record_size_warn;
631 uint32_t db_size_warn;
632 uint32_t pulldb_preallocation_size;
633 uint32_t no_ip_host_on_all_disabled;
634 uint32_t samba3_hack;
635 uint32_t mutex_enabled;
636 uint32_t lock_processes_per_db;
637 uint32_t rec_buffer_size_limit;
640 struct ctdb_tickle_list {
643 struct ctdb_connection *conn;
646 enum ctdb_client_type {
647 SERVER_TYPE_CTDB = 0,
648 SERVER_TYPE_SAMBA = 1,
649 SERVER_TYPE_NFSD = 2,
650 SERVER_TYPE_ISCSID = 3
653 struct ctdb_client_id {
654 enum ctdb_client_type type;
659 struct ctdb_client_id_list {
661 struct ctdb_client_id *cid;
664 struct ctdb_client_id_map {
666 struct ctdb_client_id_list *list;
669 struct ctdb_addr_info {
675 struct ctdb_transdb {
681 struct timeval current_time;
682 struct timeval ctdbd_start_time;
683 struct timeval last_recovery_started;
684 struct timeval last_recovery_finished;
687 struct ctdb_public_ip {
692 struct ctdb_public_ip_list {
694 struct ctdb_public_ip *ip;
700 #define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
701 #define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
702 #define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
703 #define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
704 #define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */
705 #define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */
706 #define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
707 #define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
712 #define CTDB_CAP_RECMASTER 0x00000001
713 #define CTDB_CAP_LMASTER 0x00000002
714 #define CTDB_CAP_LVS 0x00000004 /* obsolete */
715 #define CTDB_CAP_NATGW 0x00000008 /* obsolete */
720 #define CTDB_CAP_PARALLEL_RECOVERY 0x00010000
721 #define CTDB_CAP_FRAGMENTED_CONTROLS 0x00020000
723 #define CTDB_CAP_FEATURES (CTDB_CAP_PARALLEL_RECOVERY | \
724 CTDB_CAP_FRAGMENTED_CONTROLS)
726 #define CTDB_CAP_DEFAULT (CTDB_CAP_RECMASTER | \
730 struct ctdb_node_and_flags {
736 struct ctdb_node_map {
738 struct ctdb_node_and_flags *node;
742 CTDB_EVENT_INIT, /* CTDB starting up: no args */
743 CTDB_EVENT_SETUP, /* CTDB starting up after transport is readdy: no args. */
744 CTDB_EVENT_STARTUP, /* CTDB starting up after initial recovery: no args. */
745 CTDB_EVENT_START_RECOVERY, /* CTDB recovery starting: no args. */
746 CTDB_EVENT_RECOVERED, /* CTDB recovery finished: no args. */
747 CTDB_EVENT_TAKE_IP, /* IP taken: interface, IP address, netmask bits. */
748 CTDB_EVENT_RELEASE_IP, /* IP released: interface, IP address, netmask bits. */
749 CTDB_EVENT_STOPPED, /* Deprecated, do not use. */
750 CTDB_EVENT_MONITOR, /* Please check if service is healthy: no args. */
751 CTDB_EVENT_STATUS, /* Deprecated, do not use. */
752 CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */
753 CTDB_EVENT_RELOAD, /* Deprecated, do not use */
754 CTDB_EVENT_UPDATE_IP, /* IP updating: old interface, new interface, IP address, netmask bits. */
755 CTDB_EVENT_IPREALLOCATED, /* when a takeover_run() completes */
759 #define MAX_SCRIPT_NAME 31
760 #define MAX_SCRIPT_OUTPUT 511
763 char name[MAX_SCRIPT_NAME+1];
764 struct timeval start;
765 struct timeval finished;
767 char output[MAX_SCRIPT_OUTPUT+1];
770 struct ctdb_script_list {
771 uint32_t num_scripts;
772 struct ctdb_script *script;
775 struct ctdb_ban_state {
780 struct ctdb_db_priority {
785 struct ctdb_notify_data {
791 #define CTDB_IFACE_SIZE IFNAMSIZ
793 #define CTDB_IFACE_SIZE 16
797 char name[CTDB_IFACE_SIZE+2];
802 struct ctdb_iface_list {
804 struct ctdb_iface *iface;
807 struct ctdb_public_ip_info {
808 struct ctdb_public_ip ip;
810 struct ctdb_iface_list *ifaces;
813 struct ctdb_statistics_list {
815 struct ctdb_statistics *stats;
818 struct ctdb_key_data {
820 struct ctdb_ltdb_header header;
824 struct ctdb_uint8_array {
829 struct ctdb_uint64_array {
834 struct ctdb_db_statistics {
837 uint32_t num_current;
838 uint32_t num_pending;
840 struct ctdb_latency_counter latency;
841 uint32_t buckets[MAX_COUNT_BUCKETS];
844 struct ctdb_latency_counter latency;
846 uint32_t db_ro_delegations;
847 uint32_t db_ro_revokes;
848 uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
849 uint32_t num_hot_keys;
853 } hot_keys[MAX_HOT_KEYS];
857 CTDB_RUNSTATE_UNKNOWN,
860 CTDB_RUNSTATE_FIRST_RECOVERY,
861 CTDB_RUNSTATE_STARTUP,
862 CTDB_RUNSTATE_RUNNING,
863 CTDB_RUNSTATE_SHUTDOWN,
866 struct ctdb_req_control_data {
871 struct ctdb_vnn_map *vnnmap;
873 struct ctdb_pulldb *pulldb;
874 struct ctdb_pulldb_ext *pulldb_ext;
875 struct ctdb_rec_buffer *recbuf;
878 struct ctdb_traverse_start *traverse_start;
879 struct ctdb_traverse_all *traverse_all;
880 struct ctdb_rec_data *rec_data;
882 struct ctdb_connection *conn;
883 struct ctdb_tunable *tunable;
885 struct ctdb_node_flag_change *flag_change;
886 ctdb_sock_addr *addr;
887 struct ctdb_tickle_list *tickles;
888 struct ctdb_client_id *cid;
889 struct ctdb_addr_info *addr_info;
891 struct ctdb_transdb *transdb;
892 const char *event_str;
893 struct ctdb_public_ip *pubip;
894 enum ctdb_event event;
895 double reclock_latency;
896 const char *reclock_file;
899 struct ctdb_ban_state *ban_state;
900 struct ctdb_db_priority *db_prio;
901 struct ctdb_notify_data *notify;
903 struct ctdb_iface *iface;
904 struct ctdb_key_data *key;
905 struct ctdb_uint64_array *u64_array;
906 struct ctdb_traverse_start_ext *traverse_start_ext;
907 struct ctdb_traverse_all_ext *traverse_all_ext;
911 struct ctdb_reply_control_data {
914 struct ctdb_statistics *stats;
916 struct ctdb_vnn_map *vnnmap;
918 struct ctdb_dbid_map *dbmap;
919 struct ctdb_rec_buffer *recbuf;
924 struct ctdb_var_list *tun_var_list;
925 struct ctdb_tunable_list *tun_list;
926 struct ctdb_tickle_list *tickles;
927 struct ctdb_client_id_map *cid_map;
928 struct ctdb_uptime *uptime;
930 struct ctdb_public_ip_list *pubip_list;
931 struct ctdb_node_map *nodemap;
932 struct ctdb_script_list *script_list;
933 const char *reclock_file;
934 struct ctdb_ban_state *ban_state;
937 struct ctdb_public_ip_info *ipinfo;
938 struct ctdb_iface_list *iface_list;
939 struct ctdb_statistics_list *stats_list;
940 struct ctdb_uint8_array *u8_array;
941 struct ctdb_db_statistics *dbstats;
942 enum ctdb_runstate runstate;
943 uint32_t num_records;
947 struct ctdb_req_control {
952 #define CTDB_CTRL_FLAG_NOREPLY 1
953 #define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000
955 struct ctdb_req_control_data rdata;
958 struct ctdb_reply_control {
961 struct ctdb_reply_control_data rdata;
964 struct ctdb_election_message {
965 uint32_t num_connected;
966 struct timeval priority_time;
971 struct ctdb_srvid_message {
976 struct ctdb_disable_message {
982 union ctdb_message_data {
984 struct ctdb_election_message *election;
985 /* SRVID_RELEASE_IP, SRVID_TAKE_IP */
987 /* SRVID_SET_NODE_FLAGS, SERVID_PUSH_NODE_FLAGS */
988 struct ctdb_node_flag_change *flag_change;
989 /* SRVID_RECD_UPDATE_IP */
990 struct ctdb_public_ip *pubip;
991 /* SRVID_VACUUM_FETCH */
992 struct ctdb_rec_buffer *recbuf;
993 /* SRVID_DETACH_DATABASE */
995 /* SRVID_MEM_DUMP, SRVID_TAKEOVER_RUN */
996 struct ctdb_srvid_message *msg;
997 /* SRVID_BANNING, SRVID_REBALANCE_NODE */
999 /* SRVID_DISABLE_TAKEOVER_RUNS, SRVID_DISABLE_RECOVERIES */
1000 struct ctdb_disable_message *disable;
1001 /* SRVID_DISABLE_IP_CHECK */
1007 struct ctdb_req_message {
1009 union ctdb_message_data data;
1012 struct ctdb_req_message_data {
1017 /* This is equivalent to server_id */
1018 struct ctdb_server_id {
1025 enum ctdb_g_lock_type {
1026 CTDB_G_LOCK_READ = 0,
1027 CTDB_G_LOCK_WRITE = 1,
1030 struct ctdb_g_lock {
1031 enum ctdb_g_lock_type type;
1032 struct ctdb_server_id sid;
1035 struct ctdb_g_lock_list {
1037 struct ctdb_g_lock *lock;
1040 #endif /* __CTDB_PROTOCOL_H__ */