votequorum_qdevice_master_wins(3) [centos man page]

VOTEQUORUM_QDEVICE_MASTER_WINS(3)		    Corosync Cluster Engine Programmer's Manual 		 VOTEQUORUM_QDEVICE_MASTER_WINS(3)

NAME

       votequorum_qdevice_master_wins - Sets or clears quorum device master_wins flag

SYNOPSIS

       #include <corosync/votequorum.h>

       int votequorum_qdevice_master_wins(votequorum_handle_t handle const char name, unsigned int allow);

DESCRIPTION

       The votequorum_qdevice_master_wins informs votequorum whether or not the currently registered qdevice subsystem supports 'master_wins' mode
       (default 0).  This mode allows the qdevice to effectively take over the quorum calculations of votequorum. Any node with an active  qdevice
       that  also  has	master_wins set becomes quorate regardless of the node votes of the cluster. It is left up to the qdevice subsystem itself
       (not part of votequorum) to communicate across the nodes or otherwise provide some system of deciding which nodes will be part of the  quo-
       rate cluster, if any. eg They may be the set of nodes that has access to a quorum disk.
       name The name of the currently registered quorum device on this node. This must match the existing name known to votequorum.
       allow 0 (the default) means that master_wins is not active on this node. 1 means that master_wins is active on this node.

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

       votequorum_overview(8),	 votequorum_initialize(3),   votequorum_finalize(3),   votequorum_getinfo(3),  votequorum_trackstart(3),  votequo-
       rum_trackstop(3), votequorum_fd_get(3),	votequorum_dispatch(3),  votequorum_context_set(3),  votequorum_context_get(3),  votequorum_setex-
       pected(3), votequorum_setvotes(3), votequorum_qdevice_register(3), votequorum_qdevice_poll(3), votequorum_qdevice_update(3),

corosync Man Page						    2014-06-10					 VOTEQUORUM_QDEVICE_MASTER_WINS(3)

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)