Bug ID 850145: Connection hangs since pipelined HTTP requests are incorrectly queued in the proxy and not processed

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(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, 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

Fixed In:
16.0.0, 15.1.2, 14.1.3.1

Opened: Nov 14, 2019
Severity: 3-Major

Symptoms

First HTTP request on a connection creates a connection to the server. Subsequent pipelined requests should be processed and use the established connection to the server. However, the requests were queued in the proxy and not processed resulting in connection hang.

Impact

Connection hangs and is eventually reset.

Conditions

- HTTP or HTTP/2 virtual server with httprouter profile. - HTTP/1.1 connections with the client and server. - Pipelined HTTP requests.

Workaround

No workaround.

Fix Information

If a connection to the server has been established, pipelined requests are now processed immediately and not queued.

Behavior Change