hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4220) Lots of DNS queries from client
Date Wed, 17 Aug 2011 22:38:27 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13086654#comment-13086654

Todd Lipcon commented on HBASE-4220:

I think the constructor of HRegionLocation should create and cache the HServerAddress

> Lots of DNS queries from client
> -------------------------------
>                 Key: HBASE-4220
>                 URL: https://issues.apache.org/jira/browse/HBASE-4220
>             Project: HBase
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.92.0
> In running a YCSB workload, I managed to DDOS a DNS server since it seems to be flooding
lots of DNS requests. Installing nscd on the client machines improved throughput by a factor
of 6 and stopped killing the server. These are long-running clients, so it's not clear why
we do so many lookups.

This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira


View raw message