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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-9348) CloudStack Server degrades when a lot of connections on port 8250
Date Mon, 16 May 2016 21:32:12 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15285359#comment-15285359
] 

ASF subversion and git services commented on CLOUDSTACK-9348:
-------------------------------------------------------------

Commit ed8d47eef2210847a93934d78eb32fc5cfb731fe in cloudstack's branch refs/heads/master from
[~williamstevens@gmail.com]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=ed8d47e ]

Revert "CLOUDSTACK-9348: Make NioConnectio loop less aggressive"

This reverts commit 540d9572fd491db3ce182d26636fc74ada4e171c.

This was reverted because it seemed to be related to an issue
when doing a DeployDC, causing an `addHost` error.


> CloudStack Server degrades when a lot of connections on port 8250
> -----------------------------------------------------------------
>
>                 Key: CLOUDSTACK-9348
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9348
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: Rohit Yadav
>            Assignee: Rohit Yadav
>             Fix For: 4.9.0
>
>
> An intermittent issue was found with a large CloudStack deployment, where servers could
not keep agents connected on port 8250.
> All connections are handled by accept() in NioConnection:
> https://github.com/apache/cloudstack/blob/master/utils/src/main/java/com/cloud/utils/nio/NioConnection.java#L125
> A new connection is handled by accept() which does blocking SSL handshake. A good fix
would be to make this non-blocking and handle expensive tasks in separate threads/pool. This
way the main IO loop won't be blocked and can continue to serve other agents/clients.



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