"System is overloaded, try again" for OPAC searches (due to clock change)
- Article Type: General
- Product: Aleph
- Product Version: 20
Problem Symptoms:
* The message "System is overloaded, try again" occurs for OPAC searches.
* "Error: License limit exceeded" is seen in the www_server log.
Cause:
As part of a reboot the server clock was incorrectly set forward 4 hours. After the server had been up for 8 hours, the clock was corrected (set back 4 hours). This caused z63 (OPAC session) records which had been inactive to be re-activated, causing the number of Active users (as seen in util y/11/2) to exceed the number of Licensed users.
Resolution:
Avoid changing the server time as part of a reboot. If the server time is inadvertently changed:
* run aleph_shutdown;
* correct the time;
* run clear_vir01 (util x/8) cold (to avoid activating old session records);
* run aleph_startup.
Additional Information
Note: the following lines, showing evidence of the server time change, were seen in the www_server log:
2014-10-05 16:41:41 12 [002] [vrb] server_main: OUT 0.2277 11795
2014-10-05 12:42:02 43 [000] [vrb] IN 20141005 124202 <---- time drops back 4 hours!
For other causes, not involving server clock change, see Article 000009299 ("License limit exceeded or System is overloaded").
Category: System Management (500)
- Article last edited: 10/8/2014