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https://issues.apache.org/jira/browse/CLOUDSTACK-3652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13713182#comment-13713182
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Sheng Yang edited comment on CLOUDSTACK-3652 at 7/19/13 1:12 AM:
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After checking the document, I found:
MaxStartups
Specifies the maximum number of concurrent unauthenticated con-
nections to the sshd daemon. Additional connections will be
dropped until authentication succeeds or the LoginGraceTime
expires for a connection. The default is 10.
So we can just add the key of host to the VR's .ssh/known_hosts file to achieve
the maximum.
was (Author: yasker):
After checking the document, I found:
MaxStartups
Specifies the maximum number of concurrent unauthenticated con-
nections to the sshd daemon. Additional connections will be
dropped until authentication succeeds or the LoginGraceTime
expires for a connection. The default is 10.
So we can just add the key of host to the VR's .ssh/authorized_keys file to
achieve the maximum.
> Increase the concurrent connection number of VR ssh server
> ----------------------------------------------------------
>
> Key: CLOUDSTACK-3652
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3652
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Network Controller
> Affects Versions: 4.2.0
> Reporter: Sheng Yang
> Assignee: Sheng Yang
> Priority: Critical
> Fix For: 4.2.0
>
>
> It blocks CLOUDSTACK-3434.
> By default, VR only allow 10 concurrent connections at the same time. But
> since we enable parallel deployment, the number can be ~100.
> We need to increase the MaxSessions and MaxStartups in sshd_config in the VR
> to prevent openssh server from dropping the connections.
> But we need some realistic numbers here. It cannot be infinite big.
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