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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT VARIABLES | SEE ALSO | COLOPHON |
LVMPOLLD(8) System Manager's Manual LVMPOLLD(8)
lvmpolld — LVM poll daemon
lvmpolld [-l|--log {all|wire|debug}] [-p|--pidfile pidfile_path]
[-s|--socket socket_path] [-B|--binary lvm_binary_path] [-t|--timeout
timeout_value] [-f|--foreground] [-h|--help] [-V|--version]
lvmpolld [--dump]
lvmpolld is polling daemon for LVM. The daemon receives requests for
polling of already initialised operations originating in LVM2 command
line tool. The requests for polling originate in the lvconvert,
pvmove, lvchange or vgchange LVM2 commands.
The purpose of lvmpolld is to reduce the number of spawned background
processes per otherwise unique polling operation. There should be
only one. It also eliminates the possibility of unsolicited
termination of background process by external factors.
lvmpolld is used by LVM only if it is enabled in lvm.conf(5) by
specifying the global/use_lvmpolld setting. If this is not defined in
the LVM configuration explicitly then default setting is used instead
(see the output of lvmconfig --type default global/use_lvmpolld
command).
To run the daemon in a test environment both the pidfile_path and the
socket_path should be changed from the defaults.
-f, --foreground
Don't fork, but run in the foreground.
-h, --help
Show help information.
-l, --log {all|wire|debug}
Select the type of log messages to generate. Messages are
logged by syslog. Additionally, when -f is given they are
also sent to standard error. There are two classes of
messages: wire and debug. Selecting 'all' supplies both and is
equivalent to a comma-separated list -l wire,debug.
-p, --pidfile pidfile_path
Path to the pidfile. This overrides both the built-in default
(/var/run/lvmpolld.pid) and the environment variable
LVM_LVMPOLLD_PIDFILE. This file is used to prevent more than
one instance of the daemon running simultaneously.
-s, --socket socket_path
Path to the socket file. This overrides both the built-in
default (/var/run/lvm/lvmpolld.socket) and the environment
variable LVM_LVMPOLLD_SOCKET.
-t, --timeout timeout_value
The daemon may shutdown after being idle for the given time
(in seconds). When the option is omitted or the value given is
zero the daemon never shutdowns on idle.
-B, --binary lvm_binary_path
Optional path to alternative LVM binary (default:
/data/lvmtest/sbin/lvm). Use for testing purposes only.
-V, --version
Display the version of lvmpolld daemon.
--dump Contact the running lvmpolld daemon to obtain the complete
state and print it out in a raw format.
LVM_LVMPOLLD_PIDFILE
Path for the pid file.
LVM_LVMPOLLD_SOCKET
Path for the socket file.
lvm(8), lvm.conf(5)
This page is part of the lvm2 (Logical Volume Manager 2) project.
Information about the project can be found at
⟨http://www.sourceware.org/lvm2/⟩. If you have a bug report for this
manual page, send it to linux-lvm@redhat.com. This page was obtained
from the project's upstream Git repository
⟨git://sourceware.org/git/lvm2.git⟩ on 2017-07-05. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
Red Hat Inc LVM TOOLS 2.02.173(2)-git (2017-06-28) LVMPOLLD(8)
Pages that refer to this page: lvchange(8), lvconvert(8), lvcreate(8), lvdisplay(8), lvextend(8), lvm(8), lvmconfig(8), lvmdiskscan(8), lvmdump(8), lvm-fullreport(8), lvm-lvpoll(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8), pvchange(8), pvck(8), pvcreate(8), pvdisplay(8), pvmove(8), pvremove(8), pvresize(8), pvs(8), pvscan(8), vgcfgbackup(8), vgcfgrestore(8), vgchange(8), vgck(8), vgconvert(8), vgcreate(8), vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgmerge(8), vgmknodes(8), vgreduce(8), vgremove(8), vgrename(8), vgs(8), vgscan(8), vgsplit(8)