[TS-3898] Connection to the origin can allocate 1MB of iobuffers

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 5.3.0, 6.0.0
• Fix Version/s: 7.1.0
• Component/s: HTTP
• Labels: yahoo
• Assignee: Bryan Call
• Reporter: Bryan Call
• Created: 09/Sep/15 16:37
• Updated: 08/Sep/16 15:36

Description

When connecting to an origin there can be 1MB of iobuffers allocated. This happens under TLS and non-TLS. Seems like it happens when the origin doesn't supply a content-length. More investigation is needed.

Configuration:

[bcall@homer trafficserver]$ tail -1 /usr/local/etc/trafficserver/remap.config
map / https://www.flickr.com

Client:

[bcall@homer trafficserver]$ curl -D - -k https://127.0.0.1:4443/
[bcall@homer trafficserver]$ sudo kill -SIGUSR1 $(pidof traffic_server)

Server:

     allocated      |        in-use      | type size  |   free list name
--------------------|--------------------|------------|----------------------------------
            1048576 |                  0 |      32768 | memory/ioBufAllocator[8]