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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SSHD-846) ECDH/HDG kex retains KeyPairGenerator
Date Tue, 02 Oct 2018 08:30:00 GMT

    [ https://issues.apache.org/jira/browse/SSHD-846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16635149#comment-16635149
] 

ASF GitHub Bot commented on SSHD-846:
-------------------------------------

Github user rovarga closed the pull request at:

    https://github.com/apache/mina-sshd/pull/67


> ECDH/HDG kex retains KeyPairGenerator
> -------------------------------------
>
>                 Key: SSHD-846
>                 URL: https://issues.apache.org/jira/browse/SSHD-846
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 1.6.0, 1.7.0, 2.0.0
>            Reporter: Robert Varga
>            Assignee: Goldstein Lyor
>            Priority: Major
>
> Analysis of a heap dump of running OpenDaylight with 10K concurrent NETCONF sessions
over SSH transport shows that around 16% of the heap is used by Bouncy Castle's KeyPairGeneratorSpi$EC
and related objects – accounting for ~26% of OpenDaylight's per-session memory overhead.
> These objects are retained by org.apache.sshd.common.kex.ECDH's myKpairGen field, which
is never used once a keypair is generated.



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