[gentoo-user] autossh

[gentoo-user] autossh

[Kaushal Shriyan]

Hi

I am having issue with autossh hostxxxx, I get

autossh[13221]: checking for grace period, tries = 0
autossh[13221]: starting ssh (count 1)
autossh[13221]: ssh child pid is 13224
autossh[13221]: check on child 13224
autossh[13221]: set alarm for 600 secs
autossh[13224]: execing /usr/bin/ssh

My Autossh setting in my .bashrc are as  below

export AUTOSSH_GATETIME=0
export AUTOSSH_POLL=100
export AUTOSSH_PORT=20020
export AUTOSSH_DEBUG=1

When i test by disconnecting and reconnecting the internet, It takes
10mins to prompt for a password. Can this time interval be reduced ?

Thanks and Regards,

Kaushal

Re: [gentoo-user] autossh

[Joshua Murphy]

On Tue, Sep 8, 2009 at 7:12 AM, Kaushal Shriyan<kaushalshriyan@gmail.com> wrote:
> Hi
>
> I am having issue with autossh hostxxxx, I get
>
> autossh[13221]: checking for grace period, tries = 0
> autossh[13221]: starting ssh (count 1)
> autossh[13221]: ssh child pid is 13224
> autossh[13221]: check on child 13224
> autossh[13221]: set alarm for 600 secs
> autossh[13224]: execing /usr/bin/ssh
>
> My Autossh setting in my .bashrc are as  below
>
> export AUTOSSH_GATETIME=0
> export AUTOSSH_POLL=100
> export AUTOSSH_PORT=20020
> export AUTOSSH_DEBUG=1
>
> When i test by disconnecting and reconnecting the internet, It takes
> 10mins to prompt for a password. Can this time interval be reduced ?
>
> Thanks and Regards,
>
> Kaushal

Where are you starting autossh from? The AUTOSSH_POLL variable in your
.bashrc is, it would appear, being disregarded in whatever context
autossh is starting in, otherwise you'd be seeing an up to 1 minute,
40 second delay on reconnecting, not 10 minutes.

-- 
Poison [BLX]
Joshua M. Murphy

Re: [gentoo-user] autossh

[Kaushal Shriyan]

On Wed, Sep 9, 2009 at 1:09 AM, Joshua Murphy<poisonbl@gmail.com> wrote:
> On Tue, Sep 8, 2009 at 7:12 AM, Kaushal Shriyan<kaushalshriyan@gmail.com> wrote:
>> Hi
>>
>> I am having issue with autossh hostxxxx, I get
>>
>> autossh[13221]: checking for grace period, tries = 0
>> autossh[13221]: starting ssh (count 1)
>> autossh[13221]: ssh child pid is 13224
>> autossh[13221]: check on child 13224
>> autossh[13221]: set alarm for 600 secs
>> autossh[13224]: execing /usr/bin/ssh
>>
>> My Autossh setting in my .bashrc are as  below
>>
>> export AUTOSSH_GATETIME=0
>> export AUTOSSH_POLL=100
>> export AUTOSSH_PORT=20020
>> export AUTOSSH_DEBUG=1
>>
>> When i test by disconnecting and reconnecting the internet, It takes
>> 10mins to prompt for a password. Can this time interval be reduced ?
>>
>> Thanks and Regards,
>>
>> Kaushal
>
> Where are you starting autossh from? The AUTOSSH_POLL variable in your
> .bashrc is, it would appear, being disregarded in whatever context
> autossh is starting in, otherwise you'd be seeing an up to 1 minute,
> 40 second delay on reconnecting, not 10 minutes.
>
> --
> Poison [BLX]
> Joshua M. Murphy
>
>

Hi Joshua

I am starting autossh somehost from the same gnome-terminal tab
session where my .bashrc is located

Any further clue ?

Thanks and Regards,

Kaushal

Re: [gentoo-user] autossh

[Willie Wong]

On Wed, Sep 09, 2009 at 11:34:31AM +0530, Penguin Lover Kaushal Shriyan squawked:
> On Wed, Sep 9, 2009 at 1:09 AM, Joshua Murphy<poisonbl@gmail.com> wrote:
> > On Tue, Sep 8, 2009 at 7:12 AM, Kaushal Shriyan<kaushalshriyan@gmail.com> wrote:
> >> export AUTOSSH_GATETIME=0
> >> export AUTOSSH_POLL=100
> >> export AUTOSSH_PORT=20020
> >> export AUTOSSH_DEBUG=1
> >>
> > Where are you starting autossh from? The AUTOSSH_POLL variable in your
> > .bashrc is, it would appear, being disregarded in whatever context
> > autossh is starting in, otherwise you'd be seeing an up to 1 minute,
> > 40 second delay on reconnecting, not 10 minutes.
> I am starting autossh somehost from the same gnome-terminal tab
> session where my .bashrc is located
> 
> Any further clue ?
> 

Did you open a new gnome-terminal after editing .bashrc?

In the same terminal, what is the output when you type

env | grep AUTOSSH

?

W
-- 
Fahnestock's Rule for failure:
  If at first you don't succeed, destroy all evidence that you tried.
Sortir en Pantoufles: up 1006 days,  7:37

Re: [gentoo-user] autossh

[Kaushal Shriyan]

On Wed, Sep 9, 2009 at 2:16 PM, Willie Wong<wwong@math.princeton.edu> wrote:
> On Wed, Sep 09, 2009 at 11:34:31AM +0530, Penguin Lover Kaushal Shriyan squawked:
>> On Wed, Sep 9, 2009 at 1:09 AM, Joshua Murphy<poisonbl@gmail.com> wrote:
>> > On Tue, Sep 8, 2009 at 7:12 AM, Kaushal Shriyan<kaushalshriyan@gmail.com> wrote:
>> >> export AUTOSSH_GATETIME=0
>> >> export AUTOSSH_POLL=100
>> >> export AUTOSSH_PORT=20020
>> >> export AUTOSSH_DEBUG=1
>> >>
>> > Where are you starting autossh from? The AUTOSSH_POLL variable in your
>> > .bashrc is, it would appear, being disregarded in whatever context
>> > autossh is starting in, otherwise you'd be seeing an up to 1 minute,
>> > 40 second delay on reconnecting, not 10 minutes.
>> I am starting autossh somehost from the same gnome-terminal tab
>> session where my .bashrc is located
>>
>> Any further clue ?
>>
>
> Did you open a new gnome-terminal after editing .bashrc?
>
> In the same terminal, what is the output when you type
>
> env | grep AUTOSSH
>
> ?
>
> W
> --
> Fahnestock's Rule for failure:
>  If at first you don't succeed, destroy all evidence that you tried.
> Sortir en Pantoufles: up 1006 days,  7:37
>
>

Hi Willie Wong

$env | grep AUTOSSH
AUTOSSH_GATETIME=0
AUTOSSH_POLL=10

I opened a new gnome-terminal

Any further clue ?

Thanks and Regards

Kaushal

Re: [gentoo-user] autossh

[Willie Wong]

On Wed, Sep 09, 2009 at 02:38:21PM +0530, Penguin Lover Kaushal Shriyan squawked:
> $env | grep AUTOSSH
> AUTOSSH_GATETIME=0
> AUTOSSH_POLL=10
> 
> I opened a new gnome-terminal
> 
> Any further clue ?

Okay, try running autossh with the environment variable specified on
the commandline, aka

AUTOSSH_POLL=100 autossh

and check the logs to see whether it reacted to that request. If not,
run

which autossh

and 

file `which autossh`

and post the output. 

W
-- 
Have you heard about Ron Howard's new movie? The travel
documentary about northern Europe?	It's called "Mr. Opie's Holland."
Sortir en Pantoufles: up 1006 days, 10:39

Re: [gentoo-user] autossh

[Kaushal Shriyan]

On Wed, Sep 9, 2009 at 5:21 PM, Willie Wong<wwong@math.princeton.edu> wrote:
> On Wed, Sep 09, 2009 at 02:38:21PM +0530, Penguin Lover Kaushal Shriyan squawked:
>> $env | grep AUTOSSH
>> AUTOSSH_GATETIME=0
>> AUTOSSH_POLL=10
>>
>> I opened a new gnome-terminal
>>
>> Any further clue ?
>
> Okay, try running autossh with the environment variable specified on
> the commandline, aka
>
> AUTOSSH_POLL=100 autossh
>
> and check the logs to see whether it reacted to that request. If not,
> run
>
> which autossh
>
> and
>
> file `which autossh`
>
> and post the output.
>
> W
> --
> Have you heard about Ron Howard's new movie? The travel
> documentary about northern Europe?      It's called "Mr. Opie's Holland."
> Sortir en Pantoufles: up 1006 days, 10:39
>
>
Hi

$ AUTOSSH_POLL=100 autossh hostxxx
autossh[16050]: checking for grace period, tries = 0
autossh[16050]: starting ssh (count 1)
autossh[16053]: execing /usr/bin/ssh
autossh[16050]: ssh child pid is 16053
autossh[16050]: check on child 16053
autossh[16050]: set alarm for 600 secs
^Cautossh[16050]: received signal to exit (2)
$ which autossh
/usr/bin/autossh
$

Thanks and Regards

Kaushal

Re: [gentoo-user] autossh

[Willie Wong]

On Wed, Sep 09, 2009 at 06:11:20PM +0530, Penguin Lover Kaushal Shriyan squawked:
> > file `which autossh`

What about this command? I want to see if autossh is a wrapper script
so that it has its own environment. 

> $ AUTOSSH_POLL=100 autossh hostxxx
> autossh[16050]: checking for grace period, tries = 0
> autossh[16050]: starting ssh (count 1)
> autossh[16053]: execing /usr/bin/ssh
> autossh[16050]: ssh child pid is 16053
> autossh[16050]: check on child 16053
> autossh[16050]: set alarm for 600 secs
> ^Cautossh[16050]: received signal to exit (2)

Regardless, you should file a bug. The way it is ignoring the
environmental variable is definitely different from what the man page
says it should do. 

The only things I can think of that gives it such behaviour is either

(i) The software itself is broken and doesn't respect the variable.
(ii) /usr/bin/autossh is actually a wrapper script so you need to set
the variables in there, instead of in your .bashrc. 

For either case, the behaviour is not consistent with the man page. 

W
-- 
M: Hey, do that again! Make the computer beep...
W: As you wish!
M: ah~~ ah~~... hum, that beep was a G.
W: how can you tell? 
(turn around)
oh... no fair... a tuner
Sortir en Pantoufles: up 1006 days, 16:16

Re: [gentoo-user] autossh

[Kaushal Shriyan]

On Wed, Sep 9, 2009 at 10:58 PM, Willie Wong<wwong@math.princeton.edu> wrote:
> On Wed, Sep 09, 2009 at 06:11:20PM +0530, Penguin Lover Kaushal Shriyan squawked:
>> > file `which autossh`
>
> What about this command? I want to see if autossh is a wrapper script
> so that it has its own environment.
>
>> $ AUTOSSH_POLL=100 autossh hostxxx
>> autossh[16050]: checking for grace period, tries = 0
>> autossh[16050]: starting ssh (count 1)
>> autossh[16053]: execing /usr/bin/ssh
>> autossh[16050]: ssh child pid is 16053
>> autossh[16050]: check on child 16053
>> autossh[16050]: set alarm for 600 secs
>> ^Cautossh[16050]: received signal to exit (2)
>
> Regardless, you should file a bug. The way it is ignoring the
> environmental variable is definitely different from what the man page
> says it should do.
>
> The only things I can think of that gives it such behaviour is either
>
> (i) The software itself is broken and doesn't respect the variable.
> (ii) /usr/bin/autossh is actually a wrapper script so you need to set
> the variables in there, instead of in your .bashrc.
>
> For either case, the behaviour is not consistent with the man page.
>
> W
> --
> M: Hey, do that again! Make the computer beep...
> W: As you wish!
> M: ah~~ ah~~... hum, that beep was a G.
> W: how can you tell?
> (turn around)
> oh... no fair... a tuner
> Sortir en Pantoufles: up 1006 days, 16:16
>
>

Hi Willie Wong

file `which autossh`
/usr/bin/autossh: POSIX shell script text executable

http://paste.ubuntu.com/268077/

I dont see any of my env variables being called in that bash shell script.

Please suggest and guide

Thanks for the explanation.

Thanks and Regards,

Kaushal

Re: [gentoo-user] autossh

[Willie Wong]

On Wed, Sep 09, 2009 at 11:08:43PM +0530, Penguin Lover Kaushal Shriyan squawked:
> file `which autossh`
> /usr/bin/autossh: POSIX shell script text executable
> 
> http://paste.ubuntu.com/268077/
> 
> I dont see any of my env variables being called in that bash shell script.
> 
> Please suggest and guide
> 
> Thanks for the explanation.


Hum, do this for me, would ya?

(1) what happens when you run 
AUTOSSH_POLL=100 /usr/lib/autossh/autossh .....

(2) first cp /usr/bin/autossh to your home directory,
and edit it to replace the line

exec /usr/lib/autossh/autossh "$@"

with 

env | grep AUTOSSH

Then in your shell call ./autossh (just that, not options). 
What happens?

-----------------------

If I remember correctly, shell environmental variables are supposed to
be passed to child shells. So scripts are supposed to inherit those
variables. So we are now trying to figure out whether it is the shell
that is broken or it is the autossh binary that is broken. 

Best, 

W
-- 
Q: "What is the best way to determine the volume of a little red ball."
Physicist: Measure the diameter, devide by two for radius and use the 
  formula 4/3 * PI * radius ^ 3
Chemist: Take a beaker, fill it with water. Dunk the ball in it, and 
  measure the amount of water displaced.
Engineer: It's easy, just pull out the "Little Red Ball" book and look it up.
Sortir en Pantoufles: up 1007 days,  8:05