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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-2238) Support limiting the maximum number of connections/clients to a zookeeper server.
Date Thu, 11 Aug 2016 06:40:20 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-2238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15416646#comment-15416646
] 

Hadoop QA commented on ZOOKEEPER-2238:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12764120/ZOOKEEPER-2238.4.patch
  against trunk revision 1755857.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 69 new or modified tests.

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3357//console

This message is automatically generated.

> Support limiting the maximum number of connections/clients to a zookeeper server.
> ---------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-2238
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2238
>             Project: ZooKeeper
>          Issue Type: Improvement
>            Reporter: nijel
>            Assignee: Edward Ribeiro
>         Attachments: ZOOKEEPER-2238.2.patch, ZOOKEEPER-2238.3.patch, ZOOKEEPER-2238.4.patch,
ZOOKEEPER-2238.diff
>
>
> Currently zookeeper have the feature of limiting the maximum number of connection/client
 per IP or Host (maxClientCnxns).
> But to safe guard zookeeper server from DoS attack due to many clients from different
IPs,  it is better to have a limit of total number of connections/clients to a a single member
of the ZooKeeper ensemble as well.
> So the idea is to introduce a new configuration to limit the maximum number of total
connections/clients.
> Please share your thoughts.



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