[TS-3676] CONFIG proxy.config.http.no_dns_just_forward_to_parent triggers crash

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 7.0.0
• Component/s: Parent Proxy
• Labels: A
• Assignee: Randall Leeds
• Reporter: Randall Leeds
• Created: 09/Jun/15 16:30
• Updated: 07/Nov/16 23:27
• Resolved: 07/Jun/16 12:44

Description

I have a parent/child cluster running without issue. Recently, I added a new map to a unresolvable name on the child host (in my example "resource_host"). I set proxy.config.http.no_dns_just_forward_to_parent to 1 on the child. This worked fine for some time(many hours), serving up . But after awhile, the parent ATS-process crashes.

3 days later (with crashes happening every evening), I changed the config back to 0 and started using a name resolvable on the child. Since that change, there's been no crashes.

This was observed on a set of 30 child hosts all dying with the same callstack.

records.config:

CONFIG proxy.config.http.no_dns_just_forward_to_parent INT 1
CONFIG proxy.config.http.parent_proxy_routing_enable INT 1

remap.config:

map /resource.json \
    http://resource_host/mapped/resource.json

parent.config

dest_domain=resource_host method=get parent="parent_host.domain.com:80" round_robin=consistent_hash go_direct=false

Issue Links

• is duplicated by: TS-4511 ATS crashes when no_dns_just_forward is configured without parent proxies