[lxc-users] memory limits(lxd forkstart) in LXD

[Serge Hallyn]

Yeah it looks like right now lxd interprets the number as bytes.  Try
setting it to 250000000.  Or perhaps '250M' might work.

Quoting Luis M. Ibarra (michael.ibarra at gmail.com):
> Here's part of the log file
> $sudo cat /var/log/lxd/lab1/lxc.log
>  lxc_container 1438976958.115 DEBUG    lxc_start -
> start.c:setup_signal_fd:259 - sigchild handler set
>   lxc_container 1438976958.115 DEBUG    lxc_console -
> console.c:lxc_console_peer_default:536 - no console peer
>   lxc_container 1438976958.115 INFO     lxc_start - start.c:lxc_init:451 -
> 'lab1' is initialized
>   lxc_container 1438976958.115 DEBUG    lxc_start -
> start.c:__lxc_start:1137 - Not dropping cap_sys_boot or watching utmp
>   lxc_container 1438976958.116 INFO     lxc_start -
> start.c:resolve_clone_flags:848 - Cloning a new user namespace
>   lxc_container 1438976958.118 DEBUG    lxc_conf -
> conf.c:instantiate_veth:2685 - instantiated veth 'vethK7FIGK/vethPW334Q',
> index is '18'
>   lxc_container 1438976958.118 INFO     lxc_cgroup -
> cgroup.c:cgroup_init:65 - cgroup driver cgmanager initing for lab1
>   lxc_container 1438976958.120 INFO     lxc_start -
> start.c:lxc_check_inherited:221 - closed inherited fd 3
>   lxc_container 1438976958.125 DEBUG    lxc_cgmanager -
> cgmanager.c:cgm_setup_limits:1254 - cgroup 'memory.limit_in_bytes' set to
> '250'
>   lxc_container 1438976958.125 INFO     lxc_monitor -
> monitor.c:lxc_monitor_sock_name:177 - using monitor sock name
> lxc/92ea7555d42fc75c//var/lib/lxd/lxc
>   lxc_container 1438976958.126 DEBUG    lxc_cgmanager -
> cgmanager.c:cgm_setup_limits:1254 - cgroup 'memory.limit_in_bytes' set to
> '250'
>   lxc_container 1438976958.126 INFO     lxc_cgmanager -
> cgmanager.c:cgm_setup_limits:1258 - cgroup limits have been setup
>   lxc_container 1438976958.142 DEBUG    lxc_conf -
> conf.c:lxc_assign_network:3102 - move '(null)' to '1740'
>   lxc_container 1438976958.146 NOTICE   lxc_start - start.c:do_start:667 -
> switching to gid/uid 0 in new user namespace
>   lxc_container 1438976958.147 INFO     lxc_cgmanager -
> cgmanager.c:cgm_setup_limits:1258 - cgroup limits have been setup
>   lxc_container 1438976958.147 ERROR    lxc_sync - sync.c:__sync_wake:62 -
> sync wake failure : Broken pipe
>   lxc_container 1438976958.148 ERROR    lxc_start -
> start.c:__lxc_start:1164 - failed to spawn 'lab1'
>   lxc_container 1438976958.148 WARN     lxc_commands -
> commands.c:lxc_cmd_rsp_recv:172 - command get_init_pid failed to receive
> response
>   lxc_container 1438976958.149 WARN     lxc_cgmanager -
> cgmanager.c:cgm_get:963 - do_cgm_get exited with error
> 
> 
> 
> 2015-08-07 14:41 GMT-05:00 Luis M. Ibarra <michael.ibarra at gmail.com>:
> 
> > Hi everyone,
> >
> > According to the configuration specs for memory limits I only have to add:
> > lxc profile set [profile] [key] [value]
> >
> > well, I have a container inside a kvm vm with 1gb RAM,  I want to limit
> > the container memory to 250MB. So I did:
> >
> > $lxc profile set default limits.memory 250
> > $lxc profile apply lab1 default
> >
> > however, when I ran the container I got:
> >
> > $ lxc start lab1 --debug
> > 2015/08/07 14:38:50 fingering the daemon
> > 2015/08/07 14:38:50 raw response:
> > {"type":"sync","status":"Success","status_code":200,"metadata":{"api_compat":1,"auth":"trusted","config":{},"environment":{"backing_fs":"ext4","driver":"lxc","kernel_version":"3.19.0-25-generic","lxc_version":"1.1.2","lxd_version":"0.13"}}}
> > 2015/08/07 14:38:50 pong received
> > 2015/08/07 14:38:50 putting {"action":"start","force":false,"timeout":-1}
> >  to http://unix.socket/1.0/containers/lab1/state
> > 2015/08/07 14:38:50 raw response:
> > {"type":"async","status":"OK","status_code":100,"operation":"/1.0/operations/30c96f4c-a114-4a9d-8598-43714fcbee90","resources":null,"metadata":null}
> > 2015/08/07 14:38:50
> > 1.0/operations/30c96f4c-a114-4a9d-8598-43714fcbee90/wait
> > 2015/08/07 14:38:55 raw response:
> > {"type":"sync","status":"Success","status_code":200,"metadata":{"created_at":"2015-08-07T14:38:50.066285022-05:00","updated_at":"2015-08-07T14:38:55.144230833-05:00","status":"Failure","status_code":400,"resources":null,"metadata":"Error
> > calling 'lxd forkstart': exit status 1","may_cancel":false}}
> > 2015/08/07 14:38:55 Error caught in main: *errors.errorString
> > error: Error calling 'lxd forkstart': exit status 1
> >
> >
> > So any ideas about lxd forkstart?
> >
> >
> > --
> > Luis M. Ibarra
> >
> 
> 
> 
> -- 
> Luis M. Ibarra

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