Plesk shows error: failed to open semaphore file /usr/local/psa/var/utilities.sem: Permission denied

Created:

2016-11-16 12:59:23 UTC

Modified:

2016-12-21 19:42:12 UTC

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Plesk shows error: failed to open semaphore file /usr/local/psa/var/utilities.sem: Permission denied

Symptoms

Plesk is showing following error :

Unable to read components configuration from the service node: failed to open semaphore file /usr/local/psa/var/utilities.sem: Permission denied
System error 13: Permission denied

Cause

Incorrect ownership for file /usr/local/psa/var/utilities.sem .

Resolution

Make sure the valid permissions and ownership are set for /usr/local/psa/var/utilities.sem :

# stat /usr/local/psa/var/utilities.sem
File: `/usr/local/psa/var/utilities.sem'
Size: 0 Blocks: 0 IO Block: 4096 regular empty file
Device: 46b0b661h/1185986145d Inode: 284555 Links: 1
Access: (0600/-rw-------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2014-05-18 13:18:09.187813256 +0800
Modify: 2014-05-18 13:18:09.187813256 +0800
Change: 2014-05-18 13:18:09.187813256 +0800

If not, correct file permissions an ownership as following:

# chown psaadm:root /usr/local/psa/var/utilities.sem
# chmod 0600 /usr/local/psa/var/utilities.sem
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