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Posted to dev@mina.apache.org by "Goldstein Lyor (JIRA)" <ji...@apache.org> on 2017/11/06 16:56:00 UTC
[jira] [Commented] (SSHD-783) mina sshd Nio2Acceptor seems like
memory peak
[ https://issues.apache.org/jira/browse/SSHD-783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16240552#comment-16240552 ]
Goldstein Lyor commented on SSHD-783:
-------------------------------------
We no longer issue patches for version 1.0 - please try version 1.6 (latest) and see if the issue persists
> mina sshd Nio2Acceptor seems like memory peak
> ---------------------------------------------
>
> Key: SSHD-783
> URL: https://issues.apache.org/jira/browse/SSHD-783
> Project: MINA SSHD
> Issue Type: Question
> Affects Versions: 1.1.0
> Environment: Linux version 3.10.0
> jdk-1.7.0_76
> Reporter: young_shaw
> Priority: Critical
> Labels: sshd
> Attachments: 1.png
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> I am using sshd 1.1.0 as an sftp server running on a Red Hat os. I found this program often produces hprof file. I use MAT to analysis this file and find this kind of prompt:
> "org.apache.sshd.common.io.nio2.Nio2Acceptor" instance "0x761551a68" occupies 3,577,793,864 (98.18%) byte. Its main accumulation of memory is "java.util.concurrent.ConcurrentHashMap$Segment[]" instance "0x7608721c8" loaded by "bootstrap class loader" .
> Futher I found Nio2Accepter's sessions is so huge, seen in the attachment1. I doubt the method "sessionClosed" in Nio2Service is not executed when a client disconnect abnormally. So I want to ask your help to postion this problem. Thank you.
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