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Posted to dev@mina.apache.org by "Goldstein Lyor (JIRA)" <ji...@apache.org> on 2019/06/16 13:29:00 UTC

[jira] [Created] (SSHD-923) Avoid infinite waits on incoming data

Goldstein Lyor created SSHD-923:
-----------------------------------

             Summary: Avoid infinite waits on incoming data
                 Key: SSHD-923
                 URL: https://issues.apache.org/jira/browse/SSHD-923
             Project: MINA SSHD
          Issue Type: Improvement
    Affects Versions: 2.2.0
            Reporter: Goldstein Lyor
            Assignee: Goldstein Lyor


There are a few locations where the code waits for data buffers to be placed on some "queue" and then signaled that this has been done. For this purpose, it uses an "infinite" _wait()_ call on  a {{synchronized}} object. This can cause waiting threads to hang forever even though the session/channel has been closed.

 We should
* Replace these with reasonable *configurable* timeouts.
* Make sure that the wait is signaled if the relevant session/channel is closed so it will detect the closed stream faster



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