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https://issues.apache.org/jira/browse/DIRMINA-1070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16148509#comment-16148509
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Emmanuel Lecharny commented on DIRMINA-1070:
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I'm not very familiar with {{SSHd}}, so I don't know how it deals with big
messages, but again, the logic is for your application to send smaller
'messages' than one single big message.
Can you paste the code where you write a message back to the client ?
> Avoid unbounded message queueing when sending large amounts of data to slow
> clients
> -----------------------------------------------------------------------------------
>
> Key: DIRMINA-1070
> URL: https://issues.apache.org/jira/browse/DIRMINA-1070
> Project: MINA
> Issue Type: New Feature
> Components: Core
> Reporter: jpalacios
> Labels: stability
>
> Our application runs an Apache MINA server to provide SSH support. We are
> seeing {{OutOfMemoryError}} s when certain clients establish a session with a
> large {{Window}} size. Particularly clients like TortoiseGit (which uses
> TortoisePlink which in turn seems to use Putty) use an initial window size of
> 2GB. From heap dumps we can see that the {{DefaultWriteRequestQueue}} is
> filling up with {{WriteRequest}} instances and taking up gigabytes of space
> until the heap blows.
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