Symptoms
An iRules LX plugin does not properly run and messages similar to the following example are logged to the /var/log/ltm file:
err tmm[17616]: 01220001:3: TCL error: /Common/my-plugin/my-rule <HTTP_REQUEST> - ILX timeout.
invoked from within "ILX::call $ilx_handle -timeout 3000 my-function"
Impact
The affected iRules LX are not functional under the new software version, and the virtual servers utilizing them will experience various failures.
Conditions
An iRules LX workspace archive is imported to BIG-IP version 13.1.0 or later from a previous software version.
It should be noted this is what happens during a regular software upgrade. Therefore, you might encounter this issue when upgrading a system to BIG-IP version 13.1.0 or later.
Workaround
Change the node version from 0.12.15 to 6.9.1 and back.
