[jira] [Commented] (TS-4747) if the connection of parent is not alive, not make the parent host down,which will select the the unavailable host again

["Leif Hedstrom (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TS-4747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15425672#comment-15425672 ] 

Leif Hedstrom commented on TS-4747:
-----------------------------------

If you have a fix for this, can you please make a Github PR with the changes?

> if the connection of parent is not alive, not make the parent host down,which will select the the unavailable host again
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: TS-4747
>                 URL: https://issues.apache.org/jira/browse/TS-4747
>             Project: Traffic Server
>          Issue Type: Improvement
>            Reporter: xiangdong chen
>            Assignee: John Rushford
>             Fix For: 7.0.0
>
>
> the parent.config is like this:
> dest_domain=www.cxdtest.com parent=“dnstest1.com:80”;round_bin=strict
> and the dnstest1.com contains two ip:
> 192.168.1.1 （but it was down）
> 192.168.1.2
> if the request go to the parent, and the parent is domain,which contains multi ip. if one ip is down,but we not make the host down ,if the next request is comming, it will choice this ip again. we should make the host down.
> fix code on HttpTransact::handle_response_from_parent(State *s) 
> default: {
>     LookingUp_t next_lookup = UNDEFINED_LOOKUP;
>     DebugTxn("http_trans", "[hrfp] connection not alive");
>     s->state_machine->do_hostdb_update_if_necessary();//added by xdchen, make the host down,line:3606



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