Last Modified: Nov 07, 2022
Affected Product(s):
BIG-IP APM
Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1
Fixed In:
14.0.0, 12.1.3.2
Opened: Oct 26, 2017 Severity: 4-Minor
Sometimes ng_export is stuck while reading tmsh thru the pipe because of buffer issues. Export is trying to read more data from tmsh while data is lost in the middle of the read operation.
The export operation hangs.
-- ng_export receives tmsh replies through buffer of constant size x. -- During the read operation, tmsh returns a buffer size of x minus k, where k is a very small random number (less than 50). Note: K is a very small random number, which makes this issue difficult to describe.
There is no workaround at this time.
APM access policy export now uses non-blocking socket and loops to wait for data or terminate gracefully.