Bug ID 1032641: BIG-IQ analytics performance is reduced when receiving high rate of DNS statistics from BIG-IP

Last Modified: May 29, 2024

Affected Product(s):
BIG-IQ AppIQ(all modules)

Known Affected Versions:
7.1.0,,,, 7.1.6,, 7.1.7,,, 7.1.8,,,,,, 7.1.9,,,, 8.0.0,

Fixed In:

Opened: Jul 09, 2021

Severity: 2-Critical


When BIG-IQ receives a large number of DNS statistics from a BIG-IP (From appiqagent at DCD), BIG-IQ logs the following error: 2021-05-26 20:09:20,009 INFO c.f.a.a.r.ReactorPipeline [XNIO-2 task-45] Source buffer high watermark reached (available-capacity: 5905, max-capacity: 65536, usage: 90.99%, please retry later 2021-05-26 20:09:20,009 WARN c.f.a.a.c.RawDataAPIController [XNIO-2 task-45] Sending HTTP response 504 Gateway Timeout with Retry-After : 3434ms


When the high-water mark level is too high, statistics are lost.


One or more BIG-IP devices are configured to send DNS statistics.



Fix Information

This issue has been resolved and DNS statistics are properly reported.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips