{
    "mode": "info",
    "parameter": "lvmpolld",
    "section": "",
    "url": "https://www.chedong.com/phpMan.php/info/lvmpolld/json",
    "generated": "2026-07-05T13:09:05Z",
    "synopsis": "lvmpolld   [-l|--log   {all|wire|debug}]   [-p|--pidfile  pidfilepath]\n[-s|--socket socketpath] [-B|--binary  lvmbinarypath]  [-t|--timeout\ntimeoutvalue] [-f|--foreground] [-h|--help] [-V|--version]\nlvmpolld [--dump]",
    "sections": {
        "NAME": {
            "content": "lvmpolld -- LVM poll daemon\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "lvmpolld   [-l|--log   {all|wire|debug}]   [-p|--pidfile  pidfilepath]\n[-s|--socket socketpath] [-B|--binary  lvmbinarypath]  [-t|--timeout\ntimeoutvalue] [-f|--foreground] [-h|--help] [-V|--version]\n\nlvmpolld [--dump]\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "lvmpolld  is  polling  daemon for LVM. The daemon receives requests for\npolling of already initialised operations originating in  LVM2  command\nline  tool.   The  requests for polling originate in the lvconvert, pv-\nmove, lvchange or vgchange LVM2 commands.\n\nThe purpose of lvmpolld is to reduce the number of  spawned  background\nprocesses  per otherwise unique polling operation. There should be only\none. It also eliminates the possibility of unsolicited  termination  of\nbackground process by external factors.\n\nlvmpolld  is used by LVM only if it is enabled in lvm.conf(5) by speci-\nfying the global/uselvmpolld setting. If this is not  defined  in  the\nLVM  configuration explicitly then default setting is used instead (see\nthe output of lvmconfig --type default global/uselvmpolld command).\n",
            "subsections": []
        },
        "OPTIONS": {
            "content": "To run the daemon in a test environment both the pidfilepath  and  the\nsocketpath should be changed from the defaults.\n",
            "subsections": [
                {
                    "name": "-f, --foreground",
                    "content": "Don't fork, but run in the foreground.\n",
                    "flag": "-f",
                    "long": "--foreground"
                },
                {
                    "name": "-h, --help",
                    "content": "Show help information.\n\n-l, --log {all|wire|debug}\nSelect  the  type  of  log  messages  to generate.  Messages are\nlogged by syslog.  Additionally, when -f is given they are  also\nsent to standard error.  There are two classes of messages: wire\nand debug. Selecting 'all' supplies both and is equivalent to  a\ncomma-separated list -l wire,debug.\n\n-p, --pidfile pidfilepath\nPath  to  the  pidfile. This overrides both the built-in default\n(/run/lvmpolld.pid)  and  the  environment   variable   LVMLVM-\nPOLLDPIDFILE.   This  file is used to prevent more than one in-\nstance of the daemon running simultaneously.\n\n-s, --socket socketpath\nPath to the socket file. This overrides both  the  built-in  de-\nfault  (/run/lvm/lvmpolld.socket)  and  the environment variable\nLVMLVMPOLLDSOCKET.\n\n-t, --timeout timeoutvalue\nThe daemon may shutdown after being idle for the given time  (in\nseconds).  When the option is omitted or the value given is zero\nthe daemon never shutdowns on idle.\n\n-B, --binary lvmbinarypath\nOptional path to alternative LVM binary (default: /usr/lvm). Use\nfor testing purposes only.\n",
                    "flag": "-h",
                    "long": "--help"
                },
                {
                    "name": "-V, --version",
                    "content": "Display the version of lvmpolld daemon.\n\n--dump Contact the running lvmpolld daemon to obtain the complete state\nand print it out in a raw format.\n",
                    "flag": "-V",
                    "long": "--version"
                }
            ]
        },
        "ENVIRONMENT VARIABLES": {
            "content": "LVMLVMPOLLDPIDFILE\nPath for the pid file.\n\nLVMLVMPOLLDSOCKET\nPath for the socket file.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "lvm(8), lvm.conf(5)\n\nRed Hat Inc            LVM TOOLS 2.03.11(2) (2021-01-08)           LVMPOLLD(8)",
            "subsections": []
        }
    },
    "summary": "lvmpolld -- LVM poll daemon",
    "flags": [
        {
            "flag": "-f",
            "long": "--foreground",
            "arg": null,
            "description": "Don't fork, but run in the foreground."
        },
        {
            "flag": "-h",
            "long": "--help",
            "arg": null,
            "description": "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 pidfilepath Path to the pidfile. This overrides both the built-in default (/run/lvmpolld.pid) and the environment variable LVMLVM- POLLDPIDFILE. This file is used to prevent more than one in- stance of the daemon running simultaneously. -s, --socket socketpath Path to the socket file. This overrides both the built-in de- fault (/run/lvm/lvmpolld.socket) and the environment variable LVMLVMPOLLDSOCKET. -t, --timeout timeoutvalue 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 lvmbinarypath Optional path to alternative LVM binary (default: /usr/lvm). Use for testing purposes only."
        },
        {
            "flag": "-V",
            "long": "--version",
            "arg": null,
            "description": "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."
        }
    ],
    "examples": [],
    "see_also": [
        {
            "name": "lvm",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/lvm/8/json"
        },
        {
            "name": "lvm.conf",
            "section": "5",
            "url": "https://www.chedong.com/phpMan.php/man/lvm.conf/5/json"
        }
    ]
}