quorum_trackstart(3) [centos man page]
QUORUM_TRACKSTART(3) Corosync Cluster Engine Programmer's Manual QUORUM_TRACKSTART(3) NAME
quorum_trackstart - Enable callbacks notification. SYNOPSIS
#include <corosync/quorum.h> int quorum_trackstart(quorum_handle_t *handle, unsigned int flags); DESCRIPTION
The quorum_trackstart function is used to enable callbacks notification from the quorum API. Every time the voting configuraton changes (eg a node joins or leave the cluster) or the quorum status change, the notification is queued. The notification is dispatched via quorum_dispatch() function that will execute the callback. The flags argument is defined by one or more of the following values and values can be bitwise-or'd #define CS_TRACK_CURRENT 0x01 #define CS_TRACK_CHANGES 0x02 #define CS_TRACK_CHANGES_ONLY 0x04 RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is returned. ERRORS
CS_ERR_TRY_AGAIN Resource temporarily unavailable CS_ERR_INVALID_PARAM Invalid argument CS_ERR_ACCESS Permission denied CS_ERR_LIBRARY The connection failed CS_ERR_INTERRUPT System call inturrupted by a signal CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported CS_ERR_MESSAGE_ERROR Incorrect auth message received CS_ERR_NO_MEMORY Not enough memory to completed the requested task SEE ALSO
quorum_overview(8), quorum_initialize(3), quorum_finalize(3), quorum_getquorate(3), quorum_trackstop(3), quorum_fd_get(3), quorum_dis- patch(3), quorum_context_set(3), quorum_context_get(3) corosync Man Page 2014-06-10 QUORUM_TRACKSTART(3)
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VOTEQUORUM_GETINFO(3) Corosync Cluster Engine Programmer's Manual VOTEQUORUM_GETINFO(3) NAME
votequorum_getinfo - Get information about the VoteQuorum service SYNOPSIS
#include <corosync/votequorum.h> int votequorum_getinfo(votequorum_handle_t *handle, unsigned int nodeid, struct votequorum_info *info); DESCRIPTION
The votequorum_getinfo function is used to get information about the voting system and its nodes. The nodeid argument indicates which node information should be stored in the votequorum_info structure. The votequorum_info structure is defined as follows: struct votequorum_info { unsigned int node_id; unsigned int node_state; unsigned int node_votes; unsigned int node_expected_votes; unsigned int highest_expected; unsigned int total_votes; unsigned int quorum; unsigned int flags; unsigned int qdevice_votes; char qdevice_name[VOTEQUORUM_QDEVICE_MAX_NAME_LEN]; }; The node_state is defined as: #define VOTEQUORUM_NODESTATE_MEMBER 1 #define VOTEQUORUM_NODESTATE_DEAD 2 #define VOTEQUORUM_NODESTATE_LEAVING 3 The flags are defined as: #define VOTEQUORUM_INFO_TWONODE 1 #define VOTEQUORUM_INFO_QUORATE 2 #define VOTEQUORUM_INFO_WAIT_FOR_ALL 4 #define VOTEQUORUM_INFO_LAST_MAN_STANDING 8 #define VOTEQUORUM_INFO_AUTO_TIE_BREAKER 16 #define VOTEQUORUM_INFO_ALLOW_DOWNSCALE 32 #define VOTEQUORUM_INFO_QDEVICE_REGISTERED 64 #define VOTEQUORUM_INFO_QDEVICE_ALIVE 128 #define VOTEQUORUM_INFO_QDEVICE_CAST_VOTE 256 #define VOTEQUORUM_INFO_QDEVICE_MASTER_WINS 512 The members starting node_ hold information specific to the requested nodeid, the other are general to the voting system. RETURN VALUE
This call returns the CS_OK value if successful, otherwise a generic error is returned. ERRORS
CS_ERR_TRY_AGAIN Resource temporarily unavailable CS_ERR_INVALID_PARAM Invalid argument CS_ERR_ACCESS Permission denied CS_ERR_LIBRARY The connection failed CS_ERR_INTERRUPT System call inturrupted by a signal CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported CS_ERR_MESSAGE_ERROR Incorrect auth message received CS_ERR_NO_MEMORY Not enough memory to completed the requested task SEE ALSO
votequorum_overview(8), votequorum_initialize(3), votequorum_finalize(3), votequorum_trackstart(3), votequorum_trackstop(3), votequo- rum_fd_get(3), votequorum_dispatch(3), votequorum_context_set(3), votequorum_context_get(3), votequorum_setexpected(3), votequo- rum_setvotes(3) corosync Man Page 2014-06-10 VOTEQUORUM_GETINFO(3)