Bug ID 726872: iApp LX directory disappears after upgrade or restoring from UCS

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP Install/Upgrade(all modules)

Known Affected Versions:
14.0.0,,,,,, 14.0.1

Fixed In:

Opened: Jul 05, 2018

Severity: 3-Major


After BIG-IP version upgrade or restoring from UCS, iApps/Application Services/Applications LX screen displays instances of iApps LX, but their UI is not functional. That is caused by the software defect causing iApp LX directory to disappear from /var/config/rest/iapps.


The iAppLX code is removed from the system, which makes iAppLX UI unusable. The configuration deployed by iApp LX instances remains in effect. The iApp LX configuration data remain intact, and the UI can be completely restored after manual installation of iApp LX code.


Initial startup after BIG-IP version upgrade or restoring from UCS. The more iApps LX instances and the more configuration they use, the more likely this issue is to occur, for example, this issue occurs with 90 or more instances of f5-ddos-hybrid-defender iApp LX.


To workaround this issue, follow these steps: 1. Copy iAppLX code from an unaffected BIG-IP system to the BIG-IP system impacted by this defect, for example, /var/config/rest/iapps/f5-ddos-hybrid-defender 2. Create a symlink to the UI code for UI to work, for example: ln -sfvn /var/config/rest/iapps/f5-ddos-hybrid-defender/presentation /var/iapps/www/f5-ddos-hybrid-defender 3. Restart restjavad: bigstart restart restjavad 4. Restart restnoded: bigstart restart restnoded

Fix Information

iApp LX directory no longer disappears after upgrading or restoring from UCS

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips