Randall Meyer created TS-3676:
---------------------------------
Summary: CONFIG proxy.config.http.no_dns_just_forward_to_parent
triggers crash
Key: TS-3676
URL: https://issues.apache.org/jira/browse/TS-3676
Project: Traffic Server
Issue Type: Bug
Components: Parent Proxy
Reporter: Randall Meyer
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:
{noformat}
CONFIG proxy.config.http.no_dns_just_forward_to_parent INT 1
CONFIG proxy.config.http.parent_proxy_routing_enable INT 1
{noformat}
remap.config:
{noformat}
map /resource.json \
http://resource_host/mapped/resource.json
{noformat}
parent.config
{noformat}
dest_domain=resource_host method=get parent="parent_host.domain.com:80"
round_robin=consistent_hash go_direct=false
{noformat}
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