Re: [9fans] /bin/import

Re: [9fans] /bin/import

[presotto]

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is ar listening on il?

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From: arisawa@ar.aichi-u.ac.jp
To: 9fans@cse.psu.edu
Subject: [9fans] /bin/import
Date: Thu, 28 Dec 2000 23:03:02 -0500
Message-ID: <20001228141011.C30D7199FF@mail.cse.psu.edu>

Hello

Manual says:
     SYNOPSIS
          import [ -abcC ] [ -f ] system file [ mountpoint ]
that is, `import' allows C option.

On the other hand, we will find in /sys/src/cmd/import.c:
void
main(int argc, char **argv)
{
	char *mntpt;
	int fd, mntflags;

	mntflags = MREPL;
	ARGBEGIN{
	case 'a':
		mntflags = MAFTER;
		break;
	case 'b':
		mntflags = MBEFORE;
		break;
	case 'c':
		mntflags |= MCREATE;
		break;
	case 'f':
		fflag = 1;
		break;
	default:
		usage();
	}ARGEND;

Is the absence of C option in the source is a simple bug?

By the way, it is required as much as 60 sec to connect to my host `ar'
from my home plan9 terminal via ISDN line.
It seems IL does not reach  `ar'. Therefore I am using TCP.
	term% import  tcp!ar /n/kfs /n/ar
The connection time is same when I put `f' option to `import'
On the other hand, cpu command
	term% cpu -h tcp!ar -a netkey
responds without any delay.
Are there any reasons `import' requires much connection time?

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

Re: [9fans] /bin/import

[arisawa]

Hello

I said:
>By the way, it is required as much as 60 sec to connect to my host `ar'
>from my home plan9 terminal via ISDN line.

The problem came from my /lib/ndb/local.

I changed
	proto=il
to
	proto=tcp
of my remote auth server. Then the problem was fixed.

Thanks,

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

Re: [9fans] /bin/import

[arisawa]

Hello

>is ar listening on il?

Yes ar is listening both il and tcp
Here is my experiments:

term% time import  ar /n/kfs /n/ar
0.00u 0.00s 275.93r 	 import ar /n/kfs /n/ar

	cpu% netstat|grep exportfs
	tcp  4    none       Listen       exportfs   0          ::
	tcp  31   network    Established  exportfs   62836      IP1A0925.aic.mesh.ad.jp
	il   0    none       Listening    exportfs   0          ::


term% time import  tcp!ar!17007 /n/kfs /n/ar
0.00u 0.00s 60.63r 	 import tcp!ar!17007 /n/kfs /n/ar

	cpu% netstat|grep exportfs
	tcp  4    none       Listen       exportfs   0          ::
	tcp  32   network    Established  exportfs   62839      IP1A0925.aic.mesh.ad.jp
	il   0    none       Listening    exportfs   0          ::


term% time import  tcp!ar /n/kfs /n/ar
0.00u 0.01s 60.65r 	 import tcp!ar /n/kfs /n/ar

	cpu% netstat|grep exportfs
	tcp  4    none       Listen       exportfs   0          ::
	tcp  32   network    Established  exportfs   62841      IP1A0925.aic.mesh.ad.jp
	il   0    none       Listening    exportfs   0          ::


term% time import  il!ar!17007 /n/kfs /n/ar
import: can't dial il!ar!17007: interrupted(connect 202.250.160.40!17007)
0.00u 0.00s 60.00r 	 import il!ar!17007 /n/kfs /n/ar  # status=can't dial il!ar!17007: interrupted(connect 202.250.


Here, IP1A0925.aic.mesh.ad.jp is a name of internet service provider that I use to connect
from my home.


Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

[9fans] /bin/import

[arisawa]

Hello

Manual says:
     SYNOPSIS
          import [ -abcC ] [ -f ] system file [ mountpoint ]
that is, `import' allows C option.

On the other hand, we will find in /sys/src/cmd/import.c:
void
main(int argc, char **argv)
{
	char *mntpt;
	int fd, mntflags;

	mntflags = MREPL;
	ARGBEGIN{
	case 'a':
		mntflags = MAFTER;
		break;
	case 'b':
		mntflags = MBEFORE;
		break;
	case 'c':
		mntflags |= MCREATE;
		break;
	case 'f':
		fflag = 1;
		break;
	default:
		usage();
	}ARGEND;

Is the absence of C option in the source is a simple bug?

By the way, it is required as much as 60 sec to connect to my host `ar'
from my home plan9 terminal via ISDN line.
It seems IL does not reach  `ar'. Therefore I am using TCP.
	term% import  tcp!ar /n/kfs /n/ar
The connection time is same when I put `f' option to `import'
On the other hand, cpu command
	term% cpu -h tcp!ar -a netkey
responds without any delay.
Are there any reasons `import' requires much connection time?

Kenji Arisawa
E-mail: arisawa@aichi-u.ac.jp

Re: [9fans] /bin/import

[rob pike]

It looks like import -C is just missing the -C flag. It's trivial to add,
although it scares me a little to do so.  Import is used as much for
devices as plain files.  I've updated it here, though; caveat importer.

-rob