[ZBX-16832] session_start(): open(/var/lib/php/sessions/sess_0ko7eco6m72crp6oholm6krdu3, O_RDWR) failed: Read-only file system (30) [latest.php:36 Created: 2019 Oct 28  Updated: 2019 Oct 30  Resolved: 2019 Oct 28

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Server (S)
Affects Version/s: 3.0.27, 3.0.28
Fix Version/s: None

Type: Problem report Priority: Major
Reporter: Tech-zabbix Assignee: Zabbix Support Team
Resolution: Won't fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Zabbix 3.4

Attachments: PNG File error zabbix.PNG    

 Description   

Hello everyone,

After restarting the Zabbix server (unplanned). For several days I got an error message on the zabbix user interface. Do you have any idea how to solve this problem?

Please see screenshot !

Thank you !

 Comments   
Comment by dimir [ 2019 Oct 28 ]

Please do not use issue tracker to report your personal problems with installation. Use Zabbix forum or other ways to get help from community:

https://zabbix.org/wiki/Getting_help

The message clearly tells your file system is mounted read-only. This can happen, e. g. in case of disk errors. Check syslog, fix the issue and re-mount the filesystem rw.

This discussion must be moved elsewhere, closing the ticket.

Comment by Edgar Akhmetshin [ 2019 Oct 28 ]

Hello,

Look like after the restart some filesystems are mounted in read only mode (may be some file system corruption):
You can check if it is so using mount command:

mount

To check file system:

  • restart server to single mode (please refer to the operating system documentation);
  • run fsck command on all FS mount point from fstab file (please refer to the operating system documentation);

Please be advised that this section of the tracker is for bug reports only. The case you have submitted can not be qualified as one, so please reach out to [email protected] for commercial support or consultancy services. Alternatively, you can also use our IRC channel or community forum (https://www.zabbix.com/forum) for assistance. With that said, we are closing this ticket.

Thank you for understanding.

Regards,
Edgar

Comment by dimir [ 2019 Oct 30 ]

The discussion was moved here: https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/388965-error-message-on-user-interface-session_start-open-var-lib-php-sessions

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