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https://issues.apache.org/jira/browse/SSHD-1074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17313680#comment-17313680
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Lyor Goldstein commented on SSHD-1074:
--------------------------------------
[~sreedharj] Is this still an issue ? If so, please specify the version you are
using (make sure to try 2.6.0). If no response I will close this issue.
> Too many SSH_MSG_CHANNEL_WINDOW_ADJUST requests were sent by Server
> --------------------------------------------------------------------
>
> Key: SSHD-1074
> URL: https://issues.apache.org/jira/browse/SSHD-1074
> Project: MINA SSHD
> Issue Type: Question
> Reporter: Sreedhar J
> Priority: Minor
>
> During the file transfer to Apache SFTP Server, I see lot of
> SSH_MSG_CHANNEL_WINDOW_ADJUST requests are sent by Server to client.
>
> does it mean not enough buffers to handle?
>
> Here are the log entries
>
> 2020-09-02 21:54:28,946 [system-thread-1] DEBUG SftpSubsystem -
> doSendStatus(ServerSessionImpl[admin@/10.84.41.27:60825])[id=1378]
> SSH_FXP_STATUS (substatus=SSH_FX_OK, lang=, msg=)
> 2020-09-02 21:54:28,946 [system-thread-1] DEBUG ServerSessionImpl -
> encode(ServerSessionImpl[admin@/10.84.41.27:60825]) packet #1431 sending
> command=94[SSH_MSG_CHANNEL_DATA] len=30
> 2020-09-02 21:54:28,947 [system-thread-1] DEBUG ChannelSession -
> sendWindowAdjust(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825])
> SSH_MSG_CHANNEL_WINDOW_ADJUST len=1050400
> 2020-09-02 21:54:28,947 [system-thread-1] DEBUG ServerSessionImpl -
> encode(ServerSessionImpl[admin@/10.84.41.27:60825]) packet #1432 sending
> command=93[SSH_MSG_CHANNEL_WINDOW_ADJUST] len=9
> 2020-09-02 21:54:28,947 [system-thread-1] DEBUG Window - Increase
> Window[server/local](ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825]) by 1050400 up to
> 2097152
> 2020-09-02 21:54:29,022 [NioProcessor-2 ] DEBUG ChannelSession -
> handleData(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825])
> SSH_MSG_CHANNEL_DATA len=16384
>
> 21:54:30,471 [system-thread-1] DEBUG SftpSubsystem -
> doSendStatus(ServerSessionImpl[admin@/10.84.41.27:60825])[id=1410]
> SSH_FXP_STATUS (substatus=SSH_FX_OK, lang=, msg=)
> 2020-09-02 21:54:30,471 [system-thread-1] DEBUG ServerSessionImpl -
> encode(ServerSessionImpl[admin@/10.84.41.27:60825]) packet #1464 sending
> command=94[SSH_MSG_CHANNEL_DATA] len=30
> 2020-09-02 21:54:30,471 [system-thread-1] DEBUG ChannelSession -
> sendWindowAdjust(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825])
> SSH_MSG_CHANNEL_WINDOW_ADJUST len=1050400
> 2020-09-02 21:54:30,471 [system-thread-1] DEBUG ServerSessionImpl -
> encode(ServerSessionImpl[admin@/10.84.41.27:60825]) packet #1465 sending
> command=93[SSH_MSG_CHANNEL_WINDOW_ADJUST] len=9
> 2020-09-02 21:54:30,471 [system-thread-1] DEBUG Window - Increase
> Window[server/local](ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825]) by 1050400 up to
> 2097152
> 2020-09-02 21:54:30,487 [NioProcessor-2 ] DEBUG ChannelSession -
> handleData(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825])
> SSH_MSG_CHANNEL_DATA len=16384
> 2020-09-02 21:54:30,502 [NioProcessor-2 ] DEBUG ChannelSession -
> handleData(ChannelSession[id=0,
> recipient=0]-ServerSessionImpl[admin@/10.84.41.27:60825])
> SSH_MSG_CHANNEL_DATA len=16384
> 2020-09-02 21:54:30,502 [system-thread-1] DEBUG SftpSubsystem -
> process(ServerSessionImpl[admin@/10.84.41.27:60825])[length=32821,
> type=SSH_FXP_WRITE, id=1411] processing
> 2020-09-
>
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