Too many concurrent connections

[Tomas Hellberg]

I'm getting a lot of disconnects lately (2.8.4) from Jenkins talking to Gerrit:

Received disconnect message (service not available)

Disconnection message text: Too many concurrent connections

Server sent disconnect message

type 7 (service not available):

"Too many concurrent connections"

FATAL ERROR: Server sent disconnect message

type 7 (service not available):

"Too many concurrent connections"

fatal: Could not read from remote repository.

What is the recommended way to fix this?

I have not set any of these:

sshd.threads

sshd.batchThreads

sshd.maxConnectionsPerUser

[Saša Živkov]

I guess this is the limit which is reached. Check [1] for the maxConnectionsPerUser.

The default is 64. As [1] says it is actually the number of distinct SSH logins that a

user can have at a time. Therefore, check the sshd_log and see if for every LOGIN

there is a corresponding LOGOUT, how much time does it take between LOGIN/LOGOUT

and how many new LOGINs are made during that time.

The second column in the sshd_log is a session id. Simply search for further occurrences

of that id.

[1] https://gerrit-review.googlesource.com/Documentation/config-gerrit.html#sshd 

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