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https://issues.apache.org/jira/browse/TS-1916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Susan Hinrichs closed TS-1916.
------------------------------
Resolution: Cannot Reproduce
Unclear from the description what exactly is happening. James says that the
code appears to be doing the right thing. Will reopen if this is still being
seen.
> There are cases where hostdb does not reference a ttl of nameserver.
> --------------------------------------------------------------------
>
> Key: TS-1916
> URL: https://issues.apache.org/jira/browse/TS-1916
> Project: Traffic Server
> Issue Type: Bug
> Components: DNS
> Reporter: ishioka keiichi
> Fix For: sometime
>
>
> hostdb is set as follows:
> CONFIG proxy.config.hostdb.ttl_mode INT 0
> CONFIG proxy.config.hostdb.timeout INT 1
>
> If response of dns the next,ATS queries the DNS every 30 seconds.
>
> $ dig foo.bar.com. A
> ;; ANSWER SECTION:
> foo.bar.com. 30 IN A 10.10.10.1
>
> If ttl is reduced as follow:, ATS will query the DNS every 10 seconds.
>
> $ dig foo.bar.com. A
> ;; ANSWER SECTION:
> foo.bar.com. 300 IN A 10.10.10.1
>
> However, if it increased the value of ttl, ATS has continued to query DNS
> every 10 seconds.
>
> $ dig foo.bar.com. A
> ;; ANSWER SECTION:
> foo.bar.com. 300 IN A 10.10.10.1
>
> However, is adapted then HUP the traffic_server...
> Why??
>
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