Provided by: ganeti-3.0_3.0.2-3_all 
NAME
mon-collector - Command line interface for the data collectors of the monitoring system
SYNOPSIS
mon-collector {collector}
DESCRIPTION
mon-collector is a suite of tools designed to provide a command line interface to the data
collectors implemented by the ganeti monitoring system. mon-collector is also the generic
binary that must be invoked specifying, as the first command line parameter, the name of
the actual desired data collector to be run.
When executed, mon-collector will run the specified collector and will print its output to
stdout, in JSON format.
COLLECTORS
DISKSTATS
diskstats [ [ -f | --file ] = input-file ]
Collects the information about the status of the disks of the system, as listed by
/proc/diskstats, or by an alternate file with the same syntax specified on the command
line.
The options that can be passed to the DRBD collector are as follows:
-f input-file, --file=*input-file*
Where to read the data from. Default if not specified: /proc/diskstats
DRBD
drbd [ [ -s | --drbd-status ] = status-file ] [ [ -p | --drbd-pairing] = pairing-file ]
Collects the information about the version and status of the DRBD kernel module, and of
the disks it is managing.
If status-file and pairing-file are specified, the status and the instance-minor paring
information will be read from those files. Otherwise, the collector will read them,
respectively, from /proc/drbd and from the Confd server.
The options that can be passed to the DRBD collector are as follows:
-s status-file, --drbd-status=*status-file*
Read the DRBD status from the specified file instead of /proc/drbd.
-p pairing-file, --drbd-pairing=*pairing-file*
Read the information about the pairing between instances and DRBD minors from the
specified file instead of asking the Confd servers for them.
INSTANCE STATUS
inst-status-xen [ [ -a | --address ] = ip-address ] [ [ -p | --port ] = port-number ]
Collects the information about the status of the instances of the current node. In order
to perform this task, it needs to connect to the ConfD daemon to fetch some configuration
information. The following parameters allow the user to specify the position where the
daemon is listening, in case it's not the default one:
-a ip-address, --address=*ip-address*
The IP address the ConfD daemon is listening on.
-p port-number, --port=*port-number*
The port the ConfD daemon is listening on.
LOGICAL VOLUMES
lv [ [ -a | --address ] = ip-address ] [ [ -p | --port ] = port-number ] [ [ -f | --file ]
= input-file ] [ [ -i | --instances ] = instances-file ]
Collects the information about the logical volumes of the current node.
In order to perform this task, it needs to interact with the lvs command line tool and to
connect to the ConfD daemon to fetch some configuration information. The following
parameters allow the user to specify the position where the daemon is listening, in case
it's not the default one:
-a ip-address, --address=*ip-address*
The IP address the ConfD daemon is listening on.
-p port-number, --port=*port-number*
The port the ConfD daemon is listening on.
Instead of accessing the live data on the cluster, the tool can also read data serialized
on files (mainly for testing purposes). Namely:
-f input-file, --file input-file
The name of the file containing a recorded output of the lvs tool.
-i instances-file, --instances=*instances-file*
The name of the file containing a JSON serialization of instances the current node
is primary and secondary for, listed as:
([Instance], [Instance])
where the first list contains the instances the node is primary for, the second
list those the node is secondary for.
REPORTING BUGS
Report bugs to the project's issue tracker (https://github.com/ganeti/ganeti/issues) or
contact the developers using the Ganeti mailing list.
SEE ALSO
Ganeti overview and specifications: ganeti(7) (general overview), ganeti-os-interface(7)
(guest OS definitions), ganeti-extstorage-interface(7) (external storage providers).
Ganeti commands: gnt-cluster(8) (cluster-wide commands), gnt-job(8) (job-related
commands), gnt-node(8) (node-related commands), gnt-instance(8) (instance commands), gnt-
os(8) (guest OS commands), gnt-storage(8) (storage commands), gnt-group(8) (node group
commands), gnt-backup(8) (instance import/export commands), gnt-debug(8) (debug commands).
Ganeti daemons: ganeti-watcher(8) (automatic instance restarter), ganeti-cleaner(8) (job
queue cleaner), ganeti-noded(8) (node daemon), ganeti-rapi(8) (remote API daemon).
Ganeti htools: htools(1) (generic binary), hbal(1) (cluster balancer), hspace(1) (capacity
calculation), hail(1) (IAllocator plugin), hscan(1) (data gatherer from remote clusters),
hinfo(1) (cluster information printer), mon-collector(7) (data collectors interface).
COPYRIGHT
Copyright (C) 2006-2015 Google Inc. All rights reserved.
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