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Email Archive: nbd-general (read-only)

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S	M	T	W	T	F	S
1	2	3	4	5	6	7

8	9	10	11	12	13	14
				(1)	(1)
15	16	17	18	19	20	21
(1)	(4)
22	23	24	25	26	27	28

29	30

[Nbd] How to keep/make it running

From: Henk Schoneveld <belcampo@zo...> - 2007-04-16 19:17

Hi all,

Installed 2 server with 2.6.20 kernel each serving a /dev/hda7 partition 
with
following commands:
sudo ndb-server 1234 /dev/hda7 timeout 3600
sudo ndb-server 1235 /dev/hda7 timeout 3600

On client-side
sudo nbd-client bs=1024 192.168.0.220 1234 /dev/nbd0
sudo nbd-client bs=1024 192.168.0.221 1235 /dev/nbd1

sudo mount /dev/nbd0 /mnt/ip220
sudo mount /dev/nbd1 /mnt/ip221

but after very short time I get:
nbd1: Receive control failed (result -32)
nbd1: shutting down socket
nbd1: queue cleared
nbd0: Receive control failed (result -32)
nbd0: shutting down socket
nbd0: queue cleared
nbd0: Attempted send on closed socket

What am I doing wrong ?
BTW if I give a rsync --progress source > destination, rsync lets me 
believe it's copying with about 50MB/s over a 100Mb/s network without 
complaining that actually nothing is copied.

Henk Schoneveld
The Netherlands

[Nbd] Can not open NBD error

From: Jiancong Xie <jianc.xie@gm...> - 2007-04-16 07:51

Attachments: Message as HTML

Hi, every one.

 I compiled a nbd-2.8.6 on my redhat 9 with kernel 2.4.20.

Because the absent of INSTALL file in the nbd-2.8.6.tar.gz , I use the
normal way to install the nbd on both
client side and server side. These commands are :

[root]#./configure
[root]#make
[root]#make install

After do these, I use the following method to create server nbd service:

[root@... ramdisk]# ls -l /mnt/ramdisk/a
-rw-r--r--    1 root     root     63197184  4=D4=C2 15 23:38 /mnt/ramdisk/a
[root@... ramdisk]# nbd-server 2000 /mnt/ramdisk/a
[root@... ramdisk]# ps -aux | grep nbd-server
root      5775  0.0  0.1  1820  612 ?        S    Apr15   0:00 nbd-server
2000 /mnt/ramdisk/a
root     29534  0.0  0.1  4832  656 pts/0    S    16:15   0:00 grep
nbd-server


Then in the client side,

[root@... sbin]# ls -l /dev/nb1
brw-rw----    1 root     disk      43,   1 2003-01-30  /dev/nb1

[root@... sbin]#  nbd-client 192.168.0.15 2000 /dev/nb1

After done the above command, strange thing happened. There is nothing
output. I do not know whether the client setup successfully. Then I do
[root@... sbin]# ps -aux | grep nbd-client
root      8842  0.0  0.1  4892  636 pts/0    S    02:13   0:00 grep
nbd-client

I do not know why there are nothing output when the nbd-client not setup
successfully.

Then i try this:
[root@... nbd-2.8.6]# gdb --args nbd-client 192.168.0.15 2000 /dev/nb1
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you ar=
e
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux-gnu"...

 When gdb stop at the 211 line, i use the step way, and found
(gdb) p nbddev
$2 =3D 0xbfa6f911 "/dev/nb1"
It's normal.

    211         nbd =3D open(nbddev, O_RDWR);

When 211 was executed, nbd return error.
(gdb) p nbd
$4 =3D -1208637784

    212         if (nbd < 0)
    213           err("Can not open NBD: %m");

To find the reason why nothing print out, I step into the err function. And
We found that the program run into the line where use a ifdef clause:

 #ifdef ISSERVER
        syslog(LOG_ERR, "%s", s1);
#else

Is there something going wrong?
we tail the log, we found that,
[root@... log]# tail messages
Apr 15 10:50:28 gt13 nbd_client[7307]: Can not open NBD: Illegal seek
Apr 15 10:51:06 gt13 nbd_client[7390]: Can not open NBD: Illegal seek
Apr 16 02:06:21 gt13 nbd_client[8819]: Can not open NBD: Illegal seek
Apr 16 02:06:33 gt13 nbd_client[8822]: Can not open NBD: Illegal seek
Apr 16 02:09:06 gt13 nbd_client[8825]: Can not open NBD: Illegal seek
Apr 16 02:10:17 gt13 nbd_client[8837]: Can not open NBD: Illegal seek
Apr 16 02:23:10 gt13 nbd_client[10975]: Can not open NBD: No such device or
address
Apr 16 02:28:59 gt13 nbd_client[10993]: Can not open NBD: No such device or
address
Apr 16 02:35:45 gt13 nbd_client[11025]: Can not open NBD: No such device or
address
Apr 16 02:36:03 gt13 nbd_client[11029]: Can not open NBD: No such device or
address

So what's going on?

Re: [Nbd] Can not open NBD error

From: Wouter Verhelst <w@ut...> - 2007-04-16 08:01

On Mon, Apr 16, 2007 at 03:51:04PM +0800, Jiancong Xie wrote:
> Apr 16 02:23:10 gt13 nbd_client[10975]: Can not open NBD: No such device or
> address
> Apr 16 02:28:59 gt13 nbd_client[10993]: Can not open NBD: No such device or
> address
> Apr 16 02:35:45 gt13 nbd_client[11025]: Can not open NBD: No such device or
> address
> Apr 16 02:36:03 gt13 nbd_client[11029]: Can not open NBD: No such device or
> address
> 
> So what's going on?

You need to load the NBD kernel module:

modprobe nbd

But I agree that errors from nbd-client shouldn't go to syslog. I'll
change that in a future release.

-- 
Fun will now commence
  -- Seven Of Nine, "Ashes to Ashes", stardate 53679.4

Re: [Nbd] Can not open NBD error

From: Jiancong Xie <jianc.xie@gm...> - 2007-04-16 08:30

Attachments: Message as HTML

2007/4/16, Wouter Verhelst <w@...>:
>
> On Mon, Apr 16, 2007 at 03:51:04PM +0800, Jiancong Xie wrote:
> > Apr 16 02:23:10 gt13 nbd_client[10975]: Can not open NBD: No such device
> or
> > address
> > Apr 16 02:28:59 gt13 nbd_client[10993]: Can not open NBD: No such device
> or
> > address
> > Apr 16 02:35:45 gt13 nbd_client[11025]: Can not open NBD: No such device
> or
> > address
> > Apr 16 02:36:03 gt13 nbd_client[11029]: Can not open NBD: No such device
> or
> > address
> >
> > So what's going on?
>
> You need to load the NBD kernel module:
>
> modprobe nbd
>
> But I agree that errors from nbd-client shouldn't go to syslog. I'll
> change that in a future release.



:-)

--
> Fun will now commence
> -- Seven Of Nine, "Ashes to Ashes", stardate 53679.4
>

[Nbd] Can not find the nbd.h

From: Jiancong Xie <jianc.xie@gm...> - 2007-04-12 15:07

Attachments: Message as HTML

Hi, everyone.
     When I configure the package, I met the error of not finding the nbd.h.
But I find the nbd.h in following:

[root@... root]# ls /usr/include/linux/nbd.h
/usr/include/linux/nbd.h

when i type the ./configure, I met:
[root@... nbd-2.9.2]# pwd
/root/xjc/nbd/nbd-2.9.2

[root@... nbd-2.9.2]# ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether Large File Support should be enabled... yes
checking whether syslog logging is requested... no
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for a BSD-compatible install... /usr/bin/install -c
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking whether byte ordering is bigendian... no
checking for inline... inline
checking for an ANSI C-conforming const... yes
checking for unsigned short int... yes
checking size of unsigned short int... 2
checking for unsigned int... yes
checking size of unsigned int... 4
checking for unsigned long int... yes
checking size of unsigned long int... 4
checking for unsigned long long int... yes
checking size of unsigned long long int... 8
checking for llseek... yes
checking for alarm... yes
checking for gethostbyname... yes
checking for inet_ntoa... yes
checking for memset... yes
checking for socket... yes
checking for strerror... yes
checking for strstr... yes
checking for pid_t... yes
checking vfork.h usability... no
checking vfork.h presence... no
checking for vfork.h... no
checking for fork... yes
checking for vfork... yes
checking for working fork... yes
checking for working vfork... (cached) yes
checking for function prototypes... yes
checking whether setvbuf arguments are reversed... no
checking whether client should be built... yes
checking where to find a working nbd.h... configure: error: Could not find
an nbd.h from 2.6 or above.

When I type the env , I found that:
[root@... nbd-2.9.2]# env
HOSTNAME=gt15
PVM_RSH=/usr/bin/rsh
TERM=xterm
SHELL=/bin/bash
CATALINA_HOME=/opt/tomcat
HISTSIZE=1000
GLOBUS_LOCATION=/home/globus/gt3.9.5
SSH_CLIENT= 192.168.0.19 2321 22
QTDIR=/usr/lib/qt-3.1
PBS_HOME=/usr/spool/PBS
PBS_O_WORKDIR=/home/tong
SSH_TTY=/dev/pts/0
ANT_HOME=/usr/local/ant
USER=root
LS_COLORS=no=00:fi=00:di=00;34:ln=00;36:pi=40;33:so=00;35:bd=40;33;01:cd=40;33;01:or=01;05;37;41:mi=01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=00;32:*.com=00;32:*.btm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00;32:*.tar=00;31:*.tgz=00;31:*.arj=00;31:*.taz=00;31:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:*.bz=00;31:*.tz=00;31:*.rpm=00;31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;35:*.xbm=00;35:*.xpm=00;35:*.png=00;35:*.tif=00;35:

GPT_LOCATION=/home/globus/gt3.9.5
PVM_ROOT=/usr/share/pvm3
USERNAME=root
MAIL=/var/spool/mail/root
PATH=/usr/java/jdk1.5.0_02/bin:/usr/local/ant/bin:/root/bin:/home/globus/gt3.9.5/bin:/home/globus/gt3.9.5/sbin:/usr/kerberos/sbin:/usr/kerberos/bin:/root/j2sdk1.4.2_04/bin:/bin:/root/bin:/home/globus/gt3.9.5/bin:/home/globus/gt3.9.5/sbin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/j2sdk1.4.2_04/bin:JAVA_HOME/jre/bin:/usr/local/ant/bin

INPUTRC=/etc/inputrc
PWD=/root/xjc/nbd/nbd-2.9.2
JAVA_HOME=/usr/java/jdk1.5.0_02
LANG=zh_CN.GB18030
LAMHELPFILE=/etc/lam/lam-helpfile
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
JAVA_JOME=/usr/local/j2sdk1.4.2_04
SHLVL=1
HOME=/root
XPVM_ROOT=/usr/share/pvm3/xpvm
LANGUAGE=zh_CN.GB18030:zh_CN.GB2312:zh_CN
BASH_ENV=/root/.bashrc
LOGNAME=root
CLASSPATH=/usr/java/jdk1.5.0_02/lib/tools.jar:/usr/java/jdk1.5.0_02/lib/dt.jar:/usr/local/ant/lib/ant.jar:/usr/local/ant/lib/junit.jar:/usr/local/ant/lib/*.jar

SSH_CONNECTION=192.168.0.19 2321 192.168.0.15 22
LESSOPEN=|/usr/bin/lesspipe.sh %s
G_BROKEN_FILENAMES=1
PBS_NODEFILE=/usr/spool/PBS/server_priv/nodes
_=/bin/env
OLDPWD=/root/xjc/nbd


So ,How can i fix the error.

Thanks a lot.

Re: [Nbd] Can not find the nbd.h

From: Wouter Verhelst <w@ut...> - 2007-04-13 16:01

On Thu, Apr 12, 2007 at 11:07:33PM +0800, Jiancong Xie wrote:
> Hi, everyone.
>     When I configure the package, I met the error of not finding the nbd.h.
> But I find the nbd.h in following:
> 
> [root@... root]# ls /usr/include/linux/nbd.h
> /usr/include/linux/nbd.h
> 
> when i type the ./configure, I met:
> [root@... nbd-2.9.2]# pwd
> /root/xjc/nbd/nbd-2.9.2
> 
> [root@... nbd-2.9.2]# ./configure
> checking for a BSD-compatible install... /usr/bin/install -c
[...]
> checking where to find a working nbd.h... configure: error: Could not find
> an nbd.h from 2.6 or above.

That means it finds your nbd.h, but for some reason can't use it. Could
you please put your config.log file online somewhere, and post the link?

-- 
<Lo-lan-do> Home is where you have to wash the dishes.
  -- #debian-devel, Freenode, 2004-09-22

Re: [Nbd] Can not find the nbd.h

From: Jiancong Xie <jianc.xie@gm...> - 2007-04-15 09:56

Attachments: Message as HTML

2007/4/15, Wouter Verhelst <w@...>:
>
> On Sat, Apr 14, 2007 at 10:13:40PM +0800, Jiancong Xie wrote:
> > 2007/4/14, Wouter Verhelst <w@...>:
> > >
> > >On Thu, Apr 12, 2007 at 11:07:33PM +0800, Jiancong Xie wrote:
> > >> Hi, everyone.
> > >>     When I configure the package, I met the error of not finding the
> > >nbd.h.
> > >> But I find the nbd.h in following:
> > >>
> > >> [root@... root]# ls /usr/include/linux/nbd.h
> > >> /usr/include/linux/nbd.h
> > >>
> > >> when i type the ./configure, I met:
> > >> [root@... nbd-2.9.2]# pwd
> > >> /root/xjc/nbd/nbd-2.9.2
> > >>
> > >> [root@... nbd-2.9.2]# ./configure
> > >> checking for a BSD-compatible install... /usr/bin/install -c
> > >[...]
> > >> checking where to find a working nbd.h... configure: error: Could not
> > >find
> > >> an nbd.h from 2.6 or above.
> > >
> > >That means it finds your nbd.h, but for some reason can't use it. Could
> > >you please put your config.log file online somewhere, and post the
> link?
> >
> >
> > I put the config.log in following link:
> > http://www.vce.org.cn/cr/config.log.gz
> >
> > the nbd version is 2.9.2
> > and the kernel version is 2.4.20.(RedHat 9.5)
>
> Compiling against headers from that kernel version is no longer
> supported.
>
> > Is that I should choose the lower version of nbd?
>
> No. You should fetch the nbd.h from a more recent kernel (at least
> 2.6.something), put it in your nbd source tarball, and try again. It
> will work then. And before you ask: yes, the resulting binary will work
> on your 2.4-based system.


Yes , although the error was fixed, but some dependent error happened (such
as GLIB >= 6.0).Considered the poor package support of RH, I choose the
nbd-2.8.6 and in the kernel version(2.4.20) . When I recompile it ,I works ,
no errors happened.


--
> Fun will now commence
> -- Seven Of Nine, "Ashes to Ashes", stardate 53679.4
>