Bug ID 868721: Transactions are held for a long time on specific server related conditions

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.1.0,,,,,, 14.1.2,,,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,

Fixed In:

Opened: Jan 13, 2020

Severity: 3-Major


Long request buffers are kept around for a long time in bd.


The long request buffers are consumed. You may see a "Too many concurrent long requests" log message and requests with large content lengths will get reset.


-- The answer_100_continue internal parameter is turned off (non default) or the version is pre 15.1 -- The server closes the connection while request packets are accumulated.


There is no workaround that can be done from ASM configuration. If possible, change the server application settings to wait longer for the request payload in 100-continue request or change the client side application to not work with 100-continue.

Fix Information

Add a check for this scenario so transactions will be released correctly.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips