Symptoms
Error in /var/log/gtm:
err gtmd[14797]: 011ae0fa:3: iqmgmt_receive: SSL error: error:140940F5:SSL routines:SSL3_READ_BYTES:unexpected record
Impact
The BIG-IP system is marked 'down' until the connection is reestablished. This usually takes no longer than one second.
Note: This is a subtly different issue from the one (with a very similar error, 140940F5 virtual server 140940E5) described in ID 477240: iQuery connection resets every 24 hours :: https://cdn.f5.com/product/bugtracker/ID477240.html (K16185: BIG-IP GTM iQuery connections may be reset during SSL key renegotiation :: https://support.f5.com/csp/article/K16185).
This issue occurs even in versions where ID 477240 is fixed. There is no fix for this specific trigger of the same message.
Note: The iQuery communication issue is fixed through ID 760471: GTM iQuery connections may be reset during SSL key renegotiation :: https://cdn.f5.com/product/bugtracker/ID760471.html.
Conditions
This occurs when a system tries to send data over the iQuery connection while the two endpoints are performing SSL renegotiation.
Note: iQuery connections automatically perform SSL renegotiation every 24 hours.
Workaround
There is no workaround at this time.
