Execution failed. Command: vzcp_offline Arguments: Array ( ) Details: Unable to execute the utility.

Created:

2016-11-16 12:40:23 UTC

Modified:

2017-02-13 06:36:39 UTC

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Execution failed. Command: vzcp_offline Arguments: Array ( ) Details: Unable to execute the utility.

Symptoms

The following error is shown in Plesk GUI on random operations:

Internal error: Execution failed. Command: vzcp_offline Arguments: Array ( ) Details: Unable to execute the utility.
Message Execution failed. Command: vzcp_offline Arguments: Array ( ) Details: Unable to execute the utility.
File Os.php
Line 107
Type PleskFatalException

Cause

Plesk is installed in a Virtuozzo container and there is not enough 'numproc' parameter to start a new system process:

[root@s15569397 ~]# cat /proc/user_beancounters
Version: 2.5
uid resource held maxheld barrier limit failcnt
68324598: kmemsize 19861577 20910080 20971520 23068672 0
lockedpages 0 0 256 256 0
privvmpages 202139 212452 524288 576716 0
shmpages 2737 2737 20480 20480 0
dummy 0 0 9223372036854775807 9223372036854775807 0
numproc 94 96 96 96 30
...

Resolution

Log in to the hardware node and increase the parameter with not null failcnt . For example:

# vzctl set <CTID> --numproc 100 --save
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