#ifndef _CTDB_PROTOCOL_H
#define _CTDB_PROTOCOL_H
-/* location of daemon socket */
-#define CTDB_PATH "/tmp/ctdb.socket"
+#include <sys/socket.h>
+
+/* location of daemon socket, set at configure time */
+#ifdef SOCKPATH
+#define CTDB_SOCKET SOCKPATH
+#else
+#define CTDB_SOCKET "/var/run/ctdb/ctdbd.socket"
+#endif
/* default ctdb port number */
#define CTDB_PORT 4379
#define CTDB_DS_ALIGNMENT 8
-#define CTDB_NULL_FUNC 0xFF000001
-#define CTDB_FETCH_FUNC 0xFF000002
+#define CTDB_NULL_FUNC 0xFF000001
+#define CTDB_FETCH_FUNC 0xFF000002
+#define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003
struct ctdb_call {
TDB_DATA call_data;
TDB_DATA reply_data;
uint32_t status;
-#define CTDB_IMMEDIATE_MIGRATION 0x00000001
+#define CTDB_IMMEDIATE_MIGRATION 0x00000001
#define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002
+#define CTDB_WANT_READONLY 0x00000004
uint32_t flags;
};
*/
struct ctdb_call_info {
TDB_DATA key; /* record key */
+ struct ctdb_ltdb_header *header;
TDB_DATA record_data; /* current data in the record */
TDB_DATA *new_data; /* optionally updated record data */
TDB_DATA *call_data; /* optionally passed from caller */
*/
#define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL
+/*
+ * a message to tell recovery daemon to detach a database
+ */
+#define CTDB_SRVID_DETACH_DATABASE 0xF701000000000000LL
/*
a message to tell the recovery daemon to write a talloc memdump
to the log
*/
#define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL
+/* A message id used to ask the recover daemon to send logs
+*/
+#define CTDB_SRVID_GETLOG 0xF801000000000000LL
+
+/* A message id used to ask the recover daemon to send logs
+*/
+#define CTDB_SRVID_CLEARLOG 0xF802000000000000LL
+
/*
a message ID to get the recovery daemon to push the node flags out
*/
*/
#define CTDB_SRVID_TAKEOVER_RUN 0xFB00000000000000LL
+/* request recovery daemon to rebalance ips for a node.
+ input is uint32_t for the node id.
+*/
+#define CTDB_SRVID_REBALANCE_NODE 0xFB01000000000000LL
+
+/* A message handler ID to stop takeover runs from occurring */
+#define CTDB_SRVID_DISABLE_TAKEOVER_RUNS 0xFB03000000000000LL
+
+/* A message handler ID to stop recoveries from occurring */
+#define CTDB_SRVID_DISABLE_RECOVERIES 0xFB04000000000000LL
+
/* A message id to ask the recovery daemon to temporarily disable the
public ip checks
*/
*/
#define CTDB_SRVID_TAKEOVER_RUN_RESPONSE 0xFD00000000000000LL
-/* A range of ports reserved for samba (top 32 bits)
- * All ports matching the 32 top bits are reserved for exclusive use by
+/* A range of ports reserved for registering a PID (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
+ * registering a SRVID that matches the process-id of the requesting process
+ */
+#define CTDB_SRVID_PID_RANGE 0x0000000000000000LL
+
+/* A range of ports reserved for samba (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
* CIFS server
*/
#define CTDB_SRVID_SAMBA_NOTIFY 0xFE00000000000000LL
#define CTDB_SRVID_SAMBA_RANGE 0xFE00000000000000LL
-/* A range of ports reserved for a CTDB NFS server (top 32 bits)
- * All ports matching the 32 top bits are reserved for exclusive use by
+/* A range of ports reserved for a CTDB NFS server (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
* NFS server
*/
-#define CTDB_SRVID_NFSD_RANGE 0xFE01000000000000LL
+#define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL
-/* A range of ports reserved for a CTDB ISCSI server (top 32 bits)
- * All ports matching the 32 top bits are reserved for exclusive use by
+/* A range of ports reserved for a CTDB ISCSI server (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
* ISCSI server
*/
-#define CTDB_SRVID_ISCSID_RANGE 0xFE02000000000000LL
+#define CTDB_SRVID_ISCSID_RANGE 0xDE00000000000000LL
-/* A range of ports reserved for testing (top 32 bits)
- * All ports matching the 32 top bits are reserved for exclusive use by
+/* A range of ports reserved for testing (top 8 bits)
+ * All ports matching the 8 top bits are reserved for exclusive use by
* test applications
*/
-#define CTDB_SRVID_TEST_RANGE 0xFE03000000000000LL
+#define CTDB_SRVID_TEST_RANGE 0xCE00000000000000LL
/* Range of ports reserved for traversals */
-#define CTDB_SRVID_TRAVERSE_RANGE 0xFE04000000000000LL
+#define CTDB_SRVID_TRAVERSE_RANGE 0xBE00000000000000LL
/* used on the domain socket, send a pdu to the local daemon */
#define CTDB_CURRENT_NODE 0xF0000001
#define CTDB_BROADCAST_VNNMAP 0xF0000003
/* send a broadcast to all connected nodes */
#define CTDB_BROADCAST_CONNECTED 0xF0000004
+/* send a broadcast to selected connected nodes */
+#define CTDB_MULTICAST 0xF0000005
/* the key used for transaction locking on persistent databases */
#define CTDB_TRANSACTION_LOCK_KEY "__transaction_lock__"
CTDB_EVENT_RECOVERED, /* CTDB recovery finished: no args. */
CTDB_EVENT_TAKE_IP, /* IP taken: interface, IP address, netmask bits. */
CTDB_EVENT_RELEASE_IP, /* IP released: interface, IP address, netmask bits. */
- CTDB_EVENT_STOPPED, /* This node is stopped: no args. */
+ CTDB_EVENT_STOPPED, /* Deprecated, do not use. */
CTDB_EVENT_MONITOR, /* Please check if service is healthy: no args. */
- CTDB_EVENT_STATUS, /* Report service status: no args. */
+ CTDB_EVENT_STATUS, /* Deprecated, do not use. */
CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */
- CTDB_EVENT_RELOAD, /* magic */
+ CTDB_EVENT_RELOAD, /* Deprecated, do not use */
CTDB_EVENT_UPDATE_IP, /* IP updating: old interface, new interface, IP address, netmask bits. */
CTDB_EVENT_IPREALLOCATED, /* when a takeover_run() completes */
CTDB_EVENT_MAX
};
#define CTDB_MAGIC 0x43544442 /* CTDB */
-#define CTDB_VERSION 1
+#define CTDB_PROTOCOL 1
enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
CTDB_CONTROL_STATISTICS = 1,
CTDB_CONTROL_SET_DEBUG = 8,
CTDB_CONTROL_GET_DBMAP = 9,
CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */
- CTDB_CONTROL_SET_DMASTER = 11,
+ CTDB_CONTROL_SET_DMASTER = 11, /* obsolete */
/* #12 removed */
CTDB_CONTROL_PULL_DB = 13,
CTDB_CONTROL_PUSH_DB = 14,
CTDB_CONTROL_SET_RECMODE = 16,
CTDB_CONTROL_STATISTICS_RESET = 17,
CTDB_CONTROL_DB_ATTACH = 18,
- CTDB_CONTROL_SET_CALL = 19,
+ CTDB_CONTROL_SET_CALL = 19, /* obsolete */
CTDB_CONTROL_TRAVERSE_START = 20,
CTDB_CONTROL_TRAVERSE_ALL = 21,
CTDB_CONTROL_TRAVERSE_DATA = 22,
CTDB_CONTROL_CHECK_SERVER_ID = 59,
CTDB_CONTROL_GET_SERVER_ID_LIST = 60,
CTDB_CONTROL_DB_ATTACH_PERSISTENT = 61,
- CTDB_CONTROL_PERSISTENT_STORE = 62,
+ CTDB_CONTROL_PERSISTENT_STORE = 62, /* obsolete */
CTDB_CONTROL_UPDATE_RECORD = 63,
CTDB_CONTROL_SEND_GRATIOUS_ARP = 64,
CTDB_CONTROL_TRANSACTION_START = 65,
CTDB_CONTROL_GET_CAPABILITIES = 80,
CTDB_CONTROL_START_PERSISTENT_UPDATE = 81,
CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE= 82,
- CTDB_CONTROL_TRANS2_COMMIT = 83,
- CTDB_CONTROL_TRANS2_FINISHED = 84,
- CTDB_CONTROL_TRANS2_ERROR = 85,
- CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86,
+ CTDB_CONTROL_TRANS2_COMMIT = 83, /* obsolete */
+ CTDB_CONTROL_TRANS2_FINISHED = 84, /* obsolete */
+ CTDB_CONTROL_TRANS2_ERROR = 85, /* obsolete */
+ CTDB_CONTROL_TRANS2_COMMIT_RETRY = 86, /* obsolete */
CTDB_CONTROL_RECD_PING = 87,
CTDB_CONTROL_RELEASE_IP = 88,
CTDB_CONTROL_TAKEOVER_IP = 89,
CTDB_CONTROL_TRANSACTION_CANCEL = 113,
CTDB_CONTROL_REGISTER_NOTIFY = 114,
CTDB_CONTROL_DEREGISTER_NOTIFY = 115,
- CTDB_CONTROL_TRANS2_ACTIVE = 116,
- CTDB_CONTROL_GET_LOG = 117,
- CTDB_CONTROL_CLEAR_LOG = 118,
+ CTDB_CONTROL_TRANS2_ACTIVE = 116, /* obsolete */
+ CTDB_CONTROL_GET_LOG = 117, /* obsolete */
+ CTDB_CONTROL_CLEAR_LOG = 118, /* obsolete */
CTDB_CONTROL_TRANS3_COMMIT = 119,
CTDB_CONTROL_GET_DB_SEQNUM = 120,
CTDB_CONTROL_DB_SET_HEALTHY = 121,
CTDB_CONTROL_SET_IFACE_LINK_STATE = 125,
CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE = 126,
CTDB_CONTROL_GET_STAT_HISTORY = 127,
+ CTDB_CONTROL_SCHEDULE_FOR_DELETION = 128,
+ CTDB_CONTROL_SET_DB_READONLY = 129,
+ CTDB_CONTROL_CHECK_SRVIDS = 130,
+ CTDB_CONTROL_TRAVERSE_START_EXT = 131,
+ CTDB_CONTROL_GET_DB_STATISTICS = 132,
+ CTDB_CONTROL_SET_DB_STICKY = 133,
+ CTDB_CONTROL_RELOAD_PUBLIC_IPS = 134,
+ CTDB_CONTROL_TRAVERSE_ALL_EXT = 135,
+ CTDB_CONTROL_RECEIVE_RECORDS = 136,
+ CTDB_CONTROL_IPREALLOCATED = 137,
+ CTDB_CONTROL_GET_RUNSTATE = 138,
+ CTDB_CONTROL_DB_DETACH = 139,
+ CTDB_CONTROL_GET_NODES_FILE = 140,
+ CTDB_CONTROL_DB_FREEZE = 141,
+ CTDB_CONTROL_DB_THAW = 142,
+ CTDB_CONTROL_DB_TRANSACTION_START = 143,
+ CTDB_CONTROL_DB_TRANSACTION_COMMIT = 144,
+ CTDB_CONTROL_DB_TRANSACTION_CANCEL = 145,
};
/*
uint8_t data[1];
};
-struct ctdb_req_getdbpath {
- struct ctdb_req_header hdr;
- uint32_t db_id;
-};
-
-struct ctdb_reply_getdbpath {
- struct ctdb_req_header hdr;
- uint32_t datalen;
- uint8_t data[1];
-};
-
struct ctdb_req_control {
struct ctdb_req_header hdr;
uint32_t opcode;
};
-/* types of failures possible from TRANS2_COMMIT */
-enum ctdb_trans2_commit_error {
- CTDB_TRANS2_COMMIT_SUCCESS=0, /* all nodes committed successfully */
- CTDB_TRANS2_COMMIT_TIMEOUT=1, /* at least one node timed out */
- CTDB_TRANS2_COMMIT_ALLFAIL=2, /* all nodes failed the commit */
- CTDB_TRANS2_COMMIT_SOMEFAIL=3 /* some nodes failed the commit, some allowed it */
-};
-
/*
the extended header for records in the ltdb
*/
#define CTDB_REC_FLAG_DEFAULT 0x00000000
#define CTDB_REC_FLAG_MIGRATED_WITH_DATA 0x00010000
#define CTDB_REC_FLAG_VACUUM_MIGRATED 0x00020000
+#define CTDB_REC_FLAG_AUTOMATIC 0x00040000
+#define CTDB_REC_RO_HAVE_DELEGATIONS 0x01000000
+#define CTDB_REC_RO_HAVE_READONLY 0x02000000
+#define CTDB_REC_RO_REVOKING_READONLY 0x04000000
+#define CTDB_REC_RO_REVOKE_COMPLETE 0x08000000
+#define CTDB_REC_RO_FLAGS (CTDB_REC_RO_HAVE_DELEGATIONS|\
+ CTDB_REC_RO_HAVE_READONLY|\
+ CTDB_REC_RO_REVOKING_READONLY|\
+ CTDB_REC_RO_REVOKE_COMPLETE)
uint32_t flags;
};
#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DELETED|NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED|NODE_FLAGS_STOPPED)
+/*
+ * Node capabilities
+ */
+#define CTDB_CAP_RECMASTER 0x00000001
+#define CTDB_CAP_LMASTER 0x00000002
+/* This capability is set if CTDB_LVS_PUBLIC_IP is set */
+#define CTDB_CAP_LVS 0x00000004
+/* This capability is set if NATGW is enabled */
+#define CTDB_CAP_NATGW 0x00000008
+
+/*
+ * Node features
+ */
+#define CTDB_CAP_PARALLEL_RECOVERY 0x00010000
+
+#define CTDB_CAP_FEATURES (CTDB_CAP_PARALLEL_RECOVERY)
+
+#define CTDB_CAP_DEFAULT (CTDB_CAP_RECMASTER | \
+ CTDB_CAP_LMASTER | \
+ CTDB_CAP_FEATURES)
struct ctdb_public_ip {
uint32_t pnn;
uint64_t srvid;
};
+struct ctdb_traverse_start_ext {
+ uint32_t db_id;
+ uint32_t reqid;
+ uint64_t srvid;
+ bool withemptyrecords;
+};
+
/*
ctdb statistics information
*/
+#define MAX_COUNT_BUCKETS 16
+#define MAX_HOT_KEYS 10
+
struct ctdb_statistics {
uint32_t num_clients;
uint32_t frozen;
struct latency_counter ctdbd;
struct latency_counter recd;
} reclock;
+ struct {
+ uint32_t num_calls;
+ uint32_t num_current;
+ uint32_t num_pending;
+ uint32_t num_failed;
+ struct latency_counter latency;
+ uint32_t buckets[MAX_COUNT_BUCKETS];
+ } locks;
uint32_t total_calls;
uint32_t pending_calls;
- uint32_t lockwait_calls;
- uint32_t pending_lockwait_calls;
uint32_t childwrite_calls;
uint32_t pending_childwrite_calls;
uint32_t memory_used;
uint32_t __last_counter; /* hack for control_statistics_all */
uint32_t max_hop_count;
+ uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
struct latency_counter call_latency;
- struct latency_counter lockwait_latency;
struct latency_counter childwrite_latency;
uint32_t num_recoveries;
struct timeval statistics_start_time;
struct timeval statistics_current_time;
+ uint32_t total_ro_delegations;
+ uint32_t total_ro_revokes;
};
/*
struct ctdb_statistics stats[1];
};
+/*
+ * db statistics
+ */
+struct ctdb_db_statistics {
+ struct {
+ uint32_t num_calls;
+ uint32_t num_current;
+ uint32_t num_pending;
+ uint32_t num_failed;
+ struct latency_counter latency;
+ uint32_t buckets[MAX_COUNT_BUCKETS];
+ } locks;
+ struct {
+ struct latency_counter latency;
+ } vacuum;
+ uint32_t db_ro_delegations;
+ uint32_t db_ro_revokes;
+ uint32_t hop_count_bucket[MAX_COUNT_BUCKETS];
+ uint32_t num_hot_keys;
+ struct {
+ uint32_t count;
+ TDB_DATA key;
+ } hot_keys[MAX_HOT_KEYS];
+ char hot_keys_wire[1];
+};
+
+/*
+ * wire format for interface list
+ */
+#ifdef IFNAMSIZ
+#define CTDB_IFACE_SIZE IFNAMSIZ
+#else
+#define CTDB_IFACE_SIZE 16
+#endif
+
+struct ctdb_iface_info {
+ char name[CTDB_IFACE_SIZE+2];
+ uint16_t link_state;
+ uint32_t references;
+};
+
+struct ctdb_ifaces_list {
+ uint32_t num;
+ struct ctdb_iface_info ifaces[1];
+};
+
+#define INVALID_GENERATION 1
+/* table that contains the mapping between a hash value and lmaster
+ */
+struct ctdb_vnn_map {
+ uint32_t generation;
+ uint32_t size;
+ uint32_t *map;
+};
+
+/*
+ a wire representation of the vnn map
+ */
+struct ctdb_vnn_map_wire {
+ uint32_t generation;
+ uint32_t size;
+ uint32_t map[1];
+};
#endif
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