Bug ID 796605: GUI gives error when saving UCS or other operation takes more than 5 minutes

Last Modified: Jul 23, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2

Opened: Jun 22, 2019
Severity: 3-Major

Symptoms

If an operation initiated by the GUI takes more than 5 minutes, httpd times out, causing the GUI to display an error with no indication that the operation is still continuing. Most often, this happens when saving UCS or during a cpcfg operation of a very large configuration. When: -- Activating a new boot location and selecting the 'Install Configuration' operation (System :: Software Management : Boot Locations). -- Generating a UCS archive (System :: Archives). If generating a UCS archive takes over 5 minutes, the Apache httpd process terminates the connection to the backend, presenting this error in the GUI: -- Internal Server Error -- The server encountered an internal error or misconfiguration and was unable to complete your request. -- Please contact the server administrator at support@f5.com to inform them of the time this error occurred, and the actions you performed just before this error. -- More information about this error may be available in the server error log. And logging these errors in /var/log/httpd/httpd_errors: -- hostname httpd[16063]: [proxy_ajp:error] [pid 16063] [client a.b.c.d:53870] AH00992: ajp_read_header: ajp_ilink_receive failed, referer: https://bigip/tmui/Control/jspmap/tmui/system/archive/create.jsp. -- hostname httpd[16063]: [proxy_ajp:error] [pid 16063] (70007)The timeout specified has expired: [client a.b.c.d:5370] AH00878: read response failed from 127.0.0.1:72 (localhost), referer: https://bigip/tmui/Control/jspmap/tmui/system/archive/create.jsp.

Impact

The httpd process times out, rendering the GUI inactive.

Conditions

GUI operation (e.g. creating a UCS archive) takes more than 5 minutes.

Workaround

Use tmsh for a save UCS or cpcfg operation on large configurations that might take longer than 5 minutes.

Fix Information

None

Behavior Change