Bug ID 737035: New and improved infrastructure for BDoS to share learned traffic characteristics within the device group/cluster setup.

Last Modified: Sep 26, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP AFM(all modules)

Known Affected Versions:
14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.4

Fixed In:
15.0.0, 14.1.0.5, 14.0.0.5

Opened: Jul 16, 2018
Severity: 3-Major

Symptoms

BDoS feature (AFM/DHD) needs to share learned traffic characteristics across nodes (within a cluster) and across devices (within the device group). Previous infrastructure used by BDOS could cause spikes in disk usage due to a large number of snapshot files being saved under /config/filestore/ partition (.trash_bin_d and files_d/Common_d/l4bdos_context_d sub-directories).

Impact

The /config partition on the BIG-IP system consistently fills up with large numbers of directories/files under /config/filestore/, eventually causing system to run out of disk space under /config partition.

Conditions

BDOS feature is enabled on at least 1 context (either at global context or at least 1 virtual server).

Workaround

As a workaround, manually delete files/directories filling up under /config/filestore/ partition (.trash_bin_d and files_d/Common_d/l4bdos_context_d sub-directories) to free up disk space.

Fix Information

BDOS now uses a new (and improved) infrastructure for sharing data across nodes/devices (within device group/cluster setup) that does not require snapshot files to be maintained under /config/filestore/ partition.

Behavior Change