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cnxmond(8)
NAME
  cnxmond - Connection manager's monitor daemon (provided on Production
  Server configurations only)

SYNOPSIS
  /usr/sbin/cnxmond [-D waves_goodbye] [-i interface] [-m director-alias] [-p
  ping_interval] [-r reply_cache] [-S] [-t tcp|udp] [-v] [-x cl_ip_name]


FLAGS
  -D waves_goodbye
	    Specifies the number of ping intervals (as specified by the -p
	    flag) the connection manager's node monitor daemon should wait
	    before removing a cluster member that cannot communicate.  The
	    /sbin/init.d/clumember script uses a default value for this
	    parameter, which can be overridden by the CNX_WAVES variable
	    obtained from the local system's /etc/rc.config file.

  -i interface
	    Specifies the interface upon which to register the cluster_cnx
	    alias. The default is mc0.

  -m director-alias
	    Specifies the alias to be used for the cnxmgrd daemon.  The
	    default is cluster_cnx.

  -p ping_interval
	    Specifies the timeout interval (also known as the maximum ping
	    interval allowed) in seconds.  A node is timed out if it cannot
	    send at least one ping in this interval.  An effective ping
	    interval is derived from this timeout value and sent to the ping
	    daemon (cnxpingd) on each node.  The /sbin/init.d/clumember
	    script uses a default value for this interval, which can be
	    overridden by the CNX_INTERVAL variable obtained from the local
	    system's /etc/rc.config file.

	    Pings are sent by the cnxpingd daemon at intervals that are one-
	    half of this value rounded down to the nearest second.  One
	    second is the shortest ping interval.  For example:

	      ·
	      The -p5 flag sets the ping interval to 2 seconds and the
	      timeout interval to 5 seconds.

	      ·
	      The -p4 flag sets the ping interval to 2 seconds and the
	      timeout interval to 4 seconds.

	      ·
	      The -p2 flag sets the ping interval to 1 second and the timeout
	      interval to 2 seconds.

	      ·
	      The -p1 flag sets the ping interval to 1 second and the timeout
	      interval to 1 second.

  -r reply_cache
	    Specifies the size of the reply cache used by the UDP protocol.

  -S	    Do not specify this flag. It inhibits Memory Channel
	    synchronization by not registering the cnxmgrd daemon's alias,
	    and not waiting for the Memory Channel spinlock before starting.

  -t tcp|udp
	    Identifies the transport that the cnxmgrd daemon is to use to
	    communicate with agents when it is started.	 TCP is recommended.

  -v	    Provides detailed diagnostic messages and causes the cnxmgrd
	    daemon to run in verbose mode.  The /sbin/init.d/clumember script
	    uses a default value for this parameter, which can be overridden
	    by the CNX_VERBOSE variable obtained from the local system's
	    /etc/rc.config file.

  -x cl_ip_name
	    Specifies the IP name of the cluster interconnect (as defined by
	    the CLUSTER_NET configuration variable in the /etc/rc.config
	    file).  The /sbin/init.d/clumember script provides a value for
	    this parameter.

DESCRIPTION
  The connection manager's monitor daemon (cnxmond) is started on all member
  systems by the /sbin/init.d/clumember script. It runs in a standby state on
  all but one member.

  On the member on which it is active, the cnxmond daemon acquires a Memory
  Channel spinlock, registers an IP alias named cluster_cnx, and starts the
  connection manager's cluster director daemon (cnxmgrd).  The acquisition of
  the spinlock ensures that only one cnxmgrd daemon is running at any given
  time in the cluster, and prevents multiple registrations of the cluster_cnx
  service.

  When active, the cnxmond daemon receives membership requests and periodic
  keep-alive pings from member systems, and interacts with the cnxmgrd daemon
  to maintain and distribute cluster configuration information.	 The cnxmond
  daemon also receives event information (such as cluster interconnect
  failure) from agent daemons (cmxagentd) running on individual members.  The
  cnxmond daemon passes information related to membership requests, pings,
  and events to the cnxmgrd daemon, which maintains the cluster membership
  list and other configuration information.

FILE
  /usr/sbin/cnxmond
	    Specifies the command path.

RELATED INFORMATION
  cnxagentd(8), cnxmgrd(8), cnxpingd(8), cnxset(8), cnxshow(8)

Index for Section 8

Alphabetical listing for C

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