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ganeti-noded(8) Ganeti | Version @GANETI_VERSION@

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Name

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ganeti-noded - Ganeti node daemon

Synopsis

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**ganeti-noded** [-f] [-d] [-p *PORT*] [-b *ADDRESS*] [-i *INTERFACE*]

[--no-mlock] [--syslog] [--no-ssl] [-K *SSL_KEY_FILE*] [-C *SSL_CERT_FILE*]

DESCRIPTION

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The **ganeti-noded** is the daemon which is responsible for the

node functions in the Ganeti system.

By default, in order to be able to support features such as node

powercycling even on systems with a very damaged root disk,

**ganeti-noded** locks itself in RAM using **mlockall**\(2). You can

disable this feature by passing in the ``--no-mlock`` to the daemon.

For testing purposes, you can give the ``-f`` option and the

program won't detach from the running terminal.

Debug-level message can be activated by giving the ``-d`` option.

Logging to syslog, rather than its own log file, can be enabled by

passing in the ``--syslog`` option.

The **ganeti-noded** daemon listens to port 1811 TCP, on all

interfaces, by default. The port can be overridden by an entry in the

services database (usually ``/etc/services``) or by passing the ``-p``

option.  The ``-b`` option can be used to specify the address to bind

to (defaults to ``0.0.0.0``); alternatively, the ``-i`` option can be

used to specify the interface to bind do.

Ganeti noded communication is protected via SSL, with a key

generated at cluster init time. This can be disabled with the

``--no-ssl`` option, or a different SSL key and certificate can be

specified using the ``-K`` and ``-C`` options.

ROLE

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The role of the node daemon is to do almost all the actions that

change the state of the node. Things like creating disks for

instances, activating disks, starting/stopping instance and so on

are done via the node daemon.

Also, in some cases the startup/shutdown of the master daemon are

done via the node daemon, and the cluster IP address is also

added/removed to the master node via it.

If the node daemon is stopped, the instances are not affected, but

the master won't be able to talk to that node.

COMMUNICATION PROTOCOL

~~~~~~~~~~~~~~~~~~~~~~

Currently the master-node RPC is done using a simple RPC protocol

built using JSON over HTTP(S).

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