Re: ssh_channel_read is failing, it is returning -1 . Please suggest a workaround or solution

[Andreas Schneider <asn@xxxxxxxxxxxxxx>]

On Friday, 6 March 2020 11:12:21 CET V Sidnal, Nagraju wrote:
> Hi Team,
> 
> I'm executing some 10 commands randomly in infinite loop, however every some
> milliseconds I observe that  ssh_channel_read is failing, it is returning
> -1 Some logs for your reference.
> [2020/03/06 14:51:53.506869, 2] channel_rcv_change_window:  Adding 2097152
> bytes to channel (341:0) (from 0 bytes) [2020/03/06 14:51:53.506869, 2]
> channel_request:  Channel request exec success [2020/03/06 14:51:53.538119,
> 2] grow_window:  growing window (channel 341:0) to 1280000 bytes
> [2020/03/06 14:51:53.553741, 2] channel_open:  Creating a channel 342 with
> 64000 window and 32768 max packet [2020/03/06 14:51:53.553741, 2]
> ssh_packet_channel_open_conf:  Received a CHANNEL_OPEN_CONFIRMATION for
> channel 342:0 [2020/03/06 14:51:53.553741, 2] ssh_packet_channel_open_conf:
>  Remote window : 0, maxpacket : 32768 succes 1
> [2020/03/06 14:51:53.553741, 2] channel_rcv_change_window:  Adding 2097152
> bytes to channel (342:0) (from 0 bytes) [2020/03/06 14:51:53.553741, 2]
> channel_request:  Channel request exec success [2020/03/06 14:51:53.600633,
> 2] grow_window:  growing window (channel 342:0) to 1280000 bytes
> [2020/03/06 14:51:53.600633, 1] ssh_channel_read_timeout:  Remote channel
> is closed.

The remote has closed the channel. You can't read anymore.

See

https://api.libssh.org/stable/
group__libssh__channel.html#gab2720b44cb7f1dfe2b38ffe07c2f45c7


	Andreas


-- 
Andreas Schneider                 asn@xxxxxxxxxxxxxx
GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D