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Diffstat (limited to 'ctdb/include/ctdb_protocol.h')
| -rw-r--r-- | ctdb/include/ctdb_protocol.h | 741 |
1 files changed, 741 insertions, 0 deletions
diff --git a/ctdb/include/ctdb_protocol.h b/ctdb/include/ctdb_protocol.h new file mode 100644 index 0000000000..33187c7842 --- /dev/null +++ b/ctdb/include/ctdb_protocol.h @@ -0,0 +1,741 @@ +/* + ctdb database library + + Copyright (C) Andrew Tridgell 2006 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef _CTDB_PROTOCOL_H +#define _CTDB_PROTOCOL_H + +/* location of daemon socket */ +#define CTDB_PATH "/tmp/ctdb.socket" + +/* default ctdb port number */ +#define CTDB_PORT 4379 + +/* we must align packets to ensure ctdb works on all architectures (eg. sparc) */ +#define CTDB_DS_ALIGNMENT 8 + + +#define CTDB_NULL_FUNC 0xFF000001 +#define CTDB_FETCH_FUNC 0xFF000002 +#define CTDB_FETCH_WITH_HEADER_FUNC 0xFF000003 + + +struct ctdb_call { + int call_id; + TDB_DATA key; + TDB_DATA call_data; + TDB_DATA reply_data; + uint32_t status; +#define CTDB_IMMEDIATE_MIGRATION 0x00000001 +#define CTDB_CALL_FLAG_VACUUM_MIGRATION 0x00000002 +#define CTDB_WANT_READONLY 0x00000004 + uint32_t flags; +}; + +/* + structure passed to a ctdb call backend function +*/ +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 */ + TDB_DATA *reply_data; /* optionally returned by function */ + uint32_t status; /* optional reply status - defaults to zero */ +}; + +#define CTDB_ERR_INVALID 1 +#define CTDB_ERR_NOMEM 2 + +/* + ctdb flags +*/ +#define CTDB_FLAG_TORTURE (1<<1) + +/* + a message handler ID meaning "give me all messages" + */ +#define CTDB_SRVID_ALL (~(uint64_t)0) + +/* + srvid type : RECOVERY +*/ +#define CTDB_SRVID_RECOVERY 0xF100000000000000LL + +/* + a message handler ID meaning that the cluster has been reconfigured + */ +#define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL + +/* + a message handler ID meaning that an IP address has been released + */ +#define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL + +/* + a message handler ID meaning that an IP address has been taken + */ +#define CTDB_SRVID_TAKE_IP 0xF301000000000000LL + +/* + a message ID to set the node flags in the recovery daemon + */ +#define CTDB_SRVID_SET_NODE_FLAGS 0xF400000000000000LL + +/* + a message ID to ask the recovery daemon to update the expected node + assignment for a public ip + */ +#define CTDB_SRVID_RECD_UPDATE_IP 0xF500000000000000LL + +/* + a message to tell the recovery daemon to fetch a set of records + */ +#define CTDB_SRVID_VACUUM_FETCH 0xF700000000000000LL + +/* + a message to tell the recovery daemon to write a talloc memdump + to the log + */ +#define CTDB_SRVID_MEM_DUMP 0xF800000000000000LL + +/* + a message ID to get the recovery daemon to push the node flags out + */ +#define CTDB_SRVID_PUSH_NODE_FLAGS 0xF900000000000000LL + +/* + a message ID to get the recovery daemon to reload the nodes file + */ +#define CTDB_SRVID_RELOAD_NODES 0xFA00000000000000LL + +/* + a message ID to get the recovery daemon to perform a takeover run + */ +#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 meaning to ask recovery master to reload all ips + */ +#define CTDB_SRVID_RELOAD_ALL_IPS 0xFB02000000000000LL + +/* A message id to ask the recovery daemon to temporarily disable the + public ip checks +*/ +#define CTDB_SRVID_DISABLE_IP_CHECK 0xFC00000000000000LL + +/* A dummy port used for sending back ipreallocate resposnes to the main + daemon +*/ +#define CTDB_SRVID_TAKEOVER_RUN_RESPONSE 0xFD00000000000000LL + +/* 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 8 bits) + * All ports matching the 8 top bits are reserved for exclusive use by + * NFS server + */ +#define CTDB_SRVID_NFSD_RANGE 0xEE00000000000000LL + +/* 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 0xDE00000000000000LL + +/* 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 0xCE00000000000000LL + +/* Range of ports reserved for traversals */ +#define CTDB_SRVID_TRAVERSE_RANGE 0xBE00000000000000LL + +/* used on the domain socket, send a pdu to the local daemon */ +#define CTDB_CURRENT_NODE 0xF0000001 +/* send a broadcast to all nodes in the cluster, active or not */ +#define CTDB_BROADCAST_ALL 0xF0000002 +/* send a broadcast to all nodes in the current vnn map */ +#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__" + +/* the key used to store persistent db sequence number */ +#define CTDB_DB_SEQNUM_KEY "__db_sequence_number__" + +#define MONITOR_SCRIPT_OK 0 +#define MONITOR_SCRIPT_TIMEOUT 1 + +#define MAX_SCRIPT_NAME 31 +#define MAX_SCRIPT_OUTPUT 511 +struct ctdb_script_wire { + char name[MAX_SCRIPT_NAME+1]; + struct timeval start; + struct timeval finished; + int32_t status; + char output[MAX_SCRIPT_OUTPUT+1]; +}; + +struct ctdb_scripts_wire { + uint32_t num_scripts; + struct ctdb_script_wire scripts[1]; +}; + +/* different calls to event scripts. */ +enum ctdb_eventscript_call { + CTDB_EVENT_INIT, /* CTDB starting up: no args */ + CTDB_EVENT_SETUP, /* CTDB starting up after transport is readdy: no args. */ + CTDB_EVENT_STARTUP, /* CTDB starting up after initial recovery: no args. */ + CTDB_EVENT_START_RECOVERY, /* CTDB recovery starting: no args. */ + 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_MONITOR, /* Please check if service is healthy: no args. */ + CTDB_EVENT_STATUS, /* Report service status: no args. */ + CTDB_EVENT_SHUTDOWN, /* CTDB shutting down: no args. */ + CTDB_EVENT_RELOAD, /* magic */ + 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 +}; + +/* Mapping from enum to names. */ +extern const char *ctdb_eventscript_call_names[]; + +/* + operation IDs +*/ +enum ctdb_operation { + CTDB_REQ_CALL = 0, + CTDB_REPLY_CALL = 1, + CTDB_REQ_DMASTER = 2, + CTDB_REPLY_DMASTER = 3, + CTDB_REPLY_ERROR = 4, + CTDB_REQ_MESSAGE = 5, + /* #6 removed */ + CTDB_REQ_CONTROL = 7, + CTDB_REPLY_CONTROL = 8, + CTDB_REQ_KEEPALIVE = 9, +}; + +#define CTDB_MAGIC 0x43544442 /* CTDB */ +#define CTDB_VERSION 1 + +enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0, + CTDB_CONTROL_STATISTICS = 1, + /* #2 removed */ + CTDB_CONTROL_PING = 3, + CTDB_CONTROL_GETDBPATH = 4, + CTDB_CONTROL_GETVNNMAP = 5, + CTDB_CONTROL_SETVNNMAP = 6, + CTDB_CONTROL_GET_DEBUG = 7, + CTDB_CONTROL_SET_DEBUG = 8, + CTDB_CONTROL_GET_DBMAP = 9, + CTDB_CONTROL_GET_NODEMAPv4 = 10, /* obsolete */ + CTDB_CONTROL_SET_DMASTER = 11, + /* #12 removed */ + CTDB_CONTROL_PULL_DB = 13, + CTDB_CONTROL_PUSH_DB = 14, + CTDB_CONTROL_GET_RECMODE = 15, + CTDB_CONTROL_SET_RECMODE = 16, + CTDB_CONTROL_STATISTICS_RESET = 17, + CTDB_CONTROL_DB_ATTACH = 18, + CTDB_CONTROL_SET_CALL = 19, + CTDB_CONTROL_TRAVERSE_START = 20, + CTDB_CONTROL_TRAVERSE_ALL = 21, + CTDB_CONTROL_TRAVERSE_DATA = 22, + CTDB_CONTROL_REGISTER_SRVID = 23, + CTDB_CONTROL_DEREGISTER_SRVID = 24, + CTDB_CONTROL_GET_DBNAME = 25, + CTDB_CONTROL_ENABLE_SEQNUM = 26, + CTDB_CONTROL_UPDATE_SEQNUM = 27, + /* #28 removed */ + CTDB_CONTROL_DUMP_MEMORY = 29, + CTDB_CONTROL_GET_PID = 30, + CTDB_CONTROL_GET_RECMASTER = 31, + CTDB_CONTROL_SET_RECMASTER = 32, + CTDB_CONTROL_FREEZE = 33, + CTDB_CONTROL_THAW = 34, + CTDB_CONTROL_GET_PNN = 35, + CTDB_CONTROL_SHUTDOWN = 36, + CTDB_CONTROL_GET_MONMODE = 37, + /* #38 removed */ + /* #39 removed */ + /* #40 removed */ + /* #41 removed */ + CTDB_CONTROL_TAKEOVER_IPv4 = 42, /* obsolete */ + CTDB_CONTROL_RELEASE_IPv4 = 43, /* obsolete */ + CTDB_CONTROL_TCP_CLIENT = 44, + CTDB_CONTROL_TCP_ADD = 45, + CTDB_CONTROL_TCP_REMOVE = 46, + CTDB_CONTROL_STARTUP = 47, + CTDB_CONTROL_SET_TUNABLE = 48, + CTDB_CONTROL_GET_TUNABLE = 49, + CTDB_CONTROL_LIST_TUNABLES = 50, + CTDB_CONTROL_GET_PUBLIC_IPSv4 = 51, /* obsolete */ + CTDB_CONTROL_MODIFY_FLAGS = 52, + CTDB_CONTROL_GET_ALL_TUNABLES = 53, + CTDB_CONTROL_KILL_TCP = 54, + CTDB_CONTROL_GET_TCP_TICKLE_LIST = 55, + CTDB_CONTROL_SET_TCP_TICKLE_LIST = 56, + CTDB_CONTROL_REGISTER_SERVER_ID = 57, + CTDB_CONTROL_UNREGISTER_SERVER_ID = 58, + 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_UPDATE_RECORD = 63, + CTDB_CONTROL_SEND_GRATIOUS_ARP = 64, + CTDB_CONTROL_TRANSACTION_START = 65, + CTDB_CONTROL_TRANSACTION_COMMIT = 66, + CTDB_CONTROL_WIPE_DATABASE = 67, + /* #68 removed */ + CTDB_CONTROL_UPTIME = 69, + CTDB_CONTROL_START_RECOVERY = 70, + CTDB_CONTROL_END_RECOVERY = 71, + CTDB_CONTROL_RELOAD_NODES_FILE = 72, + /* #73 removed */ + CTDB_CONTROL_TRY_DELETE_RECORDS = 74, + CTDB_CONTROL_ENABLE_MONITOR = 75, + CTDB_CONTROL_DISABLE_MONITOR = 76, + CTDB_CONTROL_ADD_PUBLIC_IP = 77, + CTDB_CONTROL_DEL_PUBLIC_IP = 78, + CTDB_CONTROL_RUN_EVENTSCRIPTS = 79, + 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_RECD_PING = 87, + CTDB_CONTROL_RELEASE_IP = 88, + CTDB_CONTROL_TAKEOVER_IP = 89, + CTDB_CONTROL_GET_PUBLIC_IPS = 90, + CTDB_CONTROL_GET_NODEMAP = 91, + CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS = 96, + CTDB_CONTROL_TRAVERSE_KILL = 97, + CTDB_CONTROL_RECD_RECLOCK_LATENCY = 98, + CTDB_CONTROL_GET_RECLOCK_FILE = 99, + CTDB_CONTROL_SET_RECLOCK_FILE = 100, + CTDB_CONTROL_STOP_NODE = 101, + CTDB_CONTROL_CONTINUE_NODE = 102, + CTDB_CONTROL_SET_NATGWSTATE = 103, + CTDB_CONTROL_SET_LMASTERROLE = 104, + CTDB_CONTROL_SET_RECMASTERROLE = 105, + CTDB_CONTROL_ENABLE_SCRIPT = 107, + CTDB_CONTROL_DISABLE_SCRIPT = 108, + CTDB_CONTROL_SET_BAN_STATE = 109, + CTDB_CONTROL_GET_BAN_STATE = 110, + CTDB_CONTROL_SET_DB_PRIORITY = 111, + CTDB_CONTROL_GET_DB_PRIORITY = 112, + 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_TRANS3_COMMIT = 119, + CTDB_CONTROL_GET_DB_SEQNUM = 120, + CTDB_CONTROL_DB_SET_HEALTHY = 121, + CTDB_CONTROL_DB_GET_HEALTH = 122, + CTDB_CONTROL_GET_PUBLIC_IP_INFO = 123, + CTDB_CONTROL_GET_IFACES = 124, + 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, +}; + +/* + packet structures +*/ +struct ctdb_req_header { + uint32_t length; + uint32_t ctdb_magic; + uint32_t ctdb_version; + uint32_t generation; + uint32_t operation; + uint32_t destnode; + uint32_t srcnode; + uint32_t reqid; +}; + +struct ctdb_req_call { + struct ctdb_req_header hdr; + uint32_t flags; + uint32_t db_id; + uint32_t callid; + uint32_t hopcount; + uint32_t keylen; + uint32_t calldatalen; + uint8_t data[1]; /* key[] followed by calldata[] */ +}; + +struct ctdb_reply_call { + struct ctdb_req_header hdr; + uint32_t status; + uint32_t datalen; + uint8_t data[1]; +}; + +struct ctdb_reply_error { + struct ctdb_req_header hdr; + uint32_t status; + uint32_t msglen; + uint8_t msg[1]; +}; + +struct ctdb_req_dmaster { + struct ctdb_req_header hdr; + uint32_t db_id; + uint64_t rsn; + uint32_t dmaster; + uint32_t keylen; + uint32_t datalen; + uint8_t data[1]; +}; + +struct ctdb_reply_dmaster { + struct ctdb_req_header hdr; + uint32_t db_id; + uint64_t rsn; + uint32_t keylen; + uint32_t datalen; + uint8_t data[1]; +}; + +struct ctdb_req_message { + struct ctdb_req_header hdr; + uint64_t srvid; + uint32_t datalen; + 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; + uint32_t pad; + uint64_t srvid; + uint32_t client_id; +#define CTDB_CTRL_FLAG_NOREPLY 1 +#define CTDB_CTRL_FLAG_OPCODE_SPECIFIC 0xFFFF0000 + uint32_t flags; + uint32_t datalen; + uint8_t data[1]; +}; + +struct ctdb_reply_control { + struct ctdb_req_header hdr; + int32_t status; + uint32_t datalen; + uint32_t errorlen; + uint8_t data[1]; +}; + +struct ctdb_req_keepalive { + struct ctdb_req_header hdr; +}; + + +/* 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 +*/ +struct ctdb_ltdb_header { + uint64_t rsn; + uint32_t dmaster; + uint16_t laccessor; + uint16_t lacount; +#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 + uint32_t flags; +}; + + +/* + definitions for different socket structures + */ +typedef struct sockaddr_in ctdb_addr_in; +typedef struct sockaddr_in6 ctdb_addr_in6; +typedef union { + struct sockaddr sa; + ctdb_addr_in ip; + ctdb_addr_in6 ip6; +} ctdb_sock_addr; + +/* + A structure describing a single node, its flags and its address +*/ +struct ctdb_node_and_flags { + uint32_t pnn; + uint32_t flags; + ctdb_sock_addr addr; +}; + + +/* + Structure used for a nodemap. + The nodemap is the structure containing a list of all nodes + known to the cluster and their associated flags. +*/ +struct ctdb_node_map { + uint32_t num; + struct ctdb_node_and_flags nodes[1]; +}; + +/* + * Node flags + */ +#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */ +#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */ +#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */ +#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */ +#define NODE_FLAGS_DELETED 0x00000010 /* this node has been deleted */ +#define NODE_FLAGS_STOPPED 0x00000020 /* this node has been stopped */ +#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) + +#define NODE_FLAGS_NOIPTAKEOVER 0x01000000 /* this node can takeover any new ip addresses, this flag is ONLY valid within the recovery daemon */ + + +struct ctdb_public_ip { + uint32_t pnn; + ctdb_sock_addr addr; +}; + +struct ctdb_all_public_ips { + uint32_t num; + struct ctdb_public_ip ips[1]; +}; + + +struct latency_counter { + int num; + double min; + double max; + double total; +}; + +/* + structure used to pass record data between the child and parent + */ +struct ctdb_rec_data { + uint32_t length; + uint32_t reqid; + uint32_t keylen; + uint32_t datalen; + uint8_t data[1]; +}; + +struct ctdb_traverse_start { + uint32_t db_id; + uint32_t reqid; + 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; + uint32_t recovering; + uint32_t client_packets_sent; + uint32_t client_packets_recv; + uint32_t node_packets_sent; + uint32_t node_packets_recv; + uint32_t keepalive_packets_sent; + uint32_t keepalive_packets_recv; + struct { + uint32_t req_call; + uint32_t reply_call; + uint32_t req_dmaster; + uint32_t reply_dmaster; + uint32_t reply_error; + uint32_t req_message; + uint32_t req_control; + uint32_t reply_control; + } node; + struct { + uint32_t req_call; + uint32_t req_message; + uint32_t req_control; + } client; + struct { + uint32_t call; + uint32_t control; + uint32_t traverse; + } timeouts; + struct { + struct latency_counter ctdbd; + struct latency_counter recd; + } reclock; + 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; +}; + +/* + * wire format for statistics history + */ +struct ctdb_statistics_wire { + uint32_t num; + struct ctdb_statistics stats[1]; +}; + +/* + * db statistics + */ +struct ctdb_db_hot_key { + uint32_t count; + TDB_DATA key; +}; +struct ctdb_db_statistics { + uint32_t db_ro_delegations; + uint32_t db_ro_revokes; + uint32_t hop_count_bucket[MAX_COUNT_BUCKETS]; + uint32_t num_hot_keys; + struct ctdb_db_hot_key hot_keys[MAX_HOT_KEYS]; +}; +struct ctdb_db_statistics_wire { + uint32_t db_ro_delegations; + uint32_t db_ro_revokes; + uint32_t hop_count_bucket[MAX_COUNT_BUCKETS]; + uint32_t num_hot_keys; + char hot_keys[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 |