monitoring::livestatus::multi(3pm) [debian man page]
Monitoring::Livestatus::MULTI(3pm) User Contributed Perl Documentation Monitoring::Livestatus::MULTI(3pm)NAME
Monitoring::Livestatus::MULTI - connector with multiple peers
SYNOPSIS
use Monitoring::Livestatus;
my $nl = Monitoring::Livestatus::MULTI->new( qw{nagioshost1:9999 nagioshost2:9999 /var/spool/nagios/live.socket} );
my $hosts = $nl->selectall_arrayref("GET hosts");
CONSTRUCTOR
new ( [ARGS] )
Creates an "Monitoring::Livestatus::MULTI" object. "new" takes at least the server. Arguments are the same as in Monitoring::Livestatus.
METHODS
do
See Monitoring::Livestatus for more information.
selectall_arrayref
See Monitoring::Livestatus for more information.
selectall_hashref
See Monitoring::Livestatus for more information.
selectcol_arrayref
See Monitoring::Livestatus for more information.
selectrow_array
See Monitoring::Livestatus for more information.
selectrow_arrayref
See Monitoring::Livestatus for more information.
selectrow_hashref
See Monitoring::Livestatus for more information.
selectscalar_value
See Monitoring::Livestatus for more information.
errors_are_fatal
See Monitoring::Livestatus for more information.
warnings
See Monitoring::Livestatus for more information.
verbose
See Monitoring::Livestatus for more information.
peer_addr
See Monitoring::Livestatus for more information.
peer_name
See Monitoring::Livestatus for more information.
peer_key
See Monitoring::Livestatus for more information.
disable
$ml->disable()
disables this connection, returns the last state.
enable
$ml->enable()
enables this connection, returns the last state.
AUTHOR
Sven Nierlein, <nierlein@cpan.org>
COPYRIGHT AND LICENSE
Copyright (C) 2009 by Sven Nierlein
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.12.3 2010-07-04 Monitoring::Livestatus::MULTI(3pm)
Check Out this Related Man Page
cmvxserviced(1m)cmvxserviced(1m)NAME
cmvxserviced - monitor VxVM and CVM volumes for a high availability package.
SYNOPSIS
cmvxserviced [-h|-v] [-O log_file] [-D log_level] [-t poll_interval] volume_path...
DESCRIPTION
cmvxserviced monitors VxVM and CVM volumes. It runs as a service within a package that depends on the monitored storage. When a monitored
volume fails or becomes inaccessible (see Scope of Monitoring), the service will exit, causing the package to fail on the current node.
The package's failover behavior depends on its configured settings.
cmvxserviced periodically probes each volume named by volume_path, which must identify a block device file.
Scope of Monitoring
The VxVM Volume Monitor detects the following failures:
o Failure of the last link to a storage device or set of devices critical to volume operation
o Failure of a storage device or set of devices critical to volume operation
o An unexpected detachment or disablement of a volume
The VxVM Volume Monitor does not detect the following failures:
o Failure of a redundant link to a storage device or set of devices if a functioning link remains
o Failure of a mirrored plex within a volume (assuming at least one plex is functional)
o Corruption of data on a volume which VxVM or CVM regards as enabled and active
Options
cmvxserviced supports the following options:
-h Displays the usage, as listed above, and exits.
-v Displays the monitor version and exits.
NOTE Do not include the -h or -v parameters in your service command; this will result in immediate package failure
at runtime.
-O log_file Specifies a file for logging (log messages are printed to the console by default).
-D log_level Specifies the log level. The level of detail logged is directly proportional to the numerical value of the log
level. That is, a log level of 7 will provide the greatest amount of log information. The default log level is 0.
-t poll_interval Specifies the interval between volume probes.
You can specify a polling interval of as little as 1 (one second), but bear in mind that a short polling interval
(less than 10 seconds) may impair system performance if you are monitoring a large number of volumes. HP recom-
mends a polling interval of at least 10 seconds if 50 or more volumes are being monitored by a single service com-
mand.
The default polling interval is 60 seconds.
EXAMPLES
/usr/sbin/cmvxserviced -O /pkg1/monlog.log -D 3 /dev/vx/dsk/cvm_dg0/lvol2
This command monitors a single volume, /dev/vx/dsk/cvm_dg0/lvol2, at log level 3, with a polling interval of 60 seconds, and prints all log
messages to the file /pkg1/monlog.log.
There should be a one to one relationship between monitoring services and log files. This provides a means to correlate log messages with
the originating monitor.
/usr/sbin/cmvxserviced /dev/vx/dsk/cvm_dg0/lvol1 dev/vx/dsk/cvm_dg0/lvol2
This command monitors two volumes at the default log level of 0, with a polling interval of 60 seconds, and prints all log messages to the
console.
/usr/sbin/cmvxserviced -t 10 /dev/vx/dsk/cvm_dg2/lvol3
This command monitors a single volume at log level 0, with a polling interval of 10 seconds, and prints all log messages to the console.
AUTHOR
cmvxserviced was developed by HP.
Requires Optional Serviceguard Software cmvxserviced(1m)