[
https://issues.apache.org/jira/browse/YARN-7326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16215851#comment-16215851
]
Jian He commented on YARN-7326:
-------------------------------
Thanks Eric, I tested the new patch, it can successfully forward the dns
lookup,
[~billie.rinaldi], do you want to take a look ?
> Some issues in RegistryDNS
> --------------------------
>
> Key: YARN-7326
> URL: https://issues.apache.org/jira/browse/YARN-7326
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Jian He
> Assignee: Eric Yang
> Attachments: YARN-7326.yarn-native-services.001.patch,
> YARN-7326.yarn-native-services.002.patch,
> YARN-7326.yarn-native-services.003.patch,
> YARN-7326.yarn-native-services.004.patch,
> YARN-7326.yarn-native-services.005.patch
>
>
> [~aw] helped to identify these issues:
> Now some general bad news, not related to this patch:
> Ran a few queries, but this one is a bit concerning:
> {code}
> root@ubuntu:/hadoop/logs# dig @localhost -p 54 .
> ;; Warning: query response not set
> ; <<>> DiG 9.10.3-P4-Ubuntu <<>> @localhost -p 54 .
> ; (2 servers found)
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOTAUTH, id: 47794
> ;; flags: rd ad; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
> ;; WARNING: recursion requested but not available
> ;; Query time: 0 msec
> ;; SERVER: 127.0.0.1#54(127.0.0.1)
> ;; WHEN: Thu Oct 12 16:04:54 PDT 2017
> ;; MSG SIZE rcvd: 12
> root@ubuntu:/hadoop/logs# dig @localhost -p 54 axfr .
> ;; Connection to ::1#54(::1) for . failed: connection refused.
> ;; communications error to 127.0.0.1#54: end of file
> root@ubuntu:/hadoop/logs#
> {code}
> It looks like it effectively fails when asked about a root zone, which is bad.
> It's also kind of interesting in what it does and doesn't log. Probably
> should be configured to rotate logs based on size not date.
> The real showstopper though: RegistryDNS basically eats a core. It is running
> with 100% cpu utilization with and without jsvc. On my laptop, this is
> triggering my fan.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org
