[stgt] Transport endpoint is not connected

[Mark Ruys]

I'm sorry if I post this question to the wrong list, but...

For about a year now I have a iSCSI target running fine. Today I needed 
to add a target, so I logged and typed:

$ sudo tgtadm --lld iscsi --mode target --op show
tgtadm: can't send the request to the tgt daemon, Transport endpoint is 
not connected

As this is a production machine, this really scares me. Currently, all 
targets seem to run fine. How should I interpret this message and how to 
get tgtadm running again? I can't afford any downtime, so I must be as 
careful as possible.

Thanks!

Mark

$ cat /etc/redhat-release
CentOS release 5.6 (Final)

$ rpm -qa | grep scsi
scsi-target-utils-1.0.8-0.el5_6.1
iscsi-initiator-utils-6.2.0.872-6.el5

$ uname -a
Linux akira.in2sports.net 2.6.18-194.17.1.el5 #1 SMP Wed Sep 29 12:50:31 
EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

$ ps waux | grep scsi
root       486  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_0]
root       507  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_1]
root       508  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_2]
root       509  0.0  0.0      0     0 ?        S<    2010  68:34 [scsi_eh_3]
root       510  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_4]
root      1278  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_5]
root      1281  0.0  0.0      0     0 ?        S<    2010   0:00 [scsi_eh_6]
markr    21395  0.0  0.0  61180   756 pts/0    SN+  14:52   0:00 grep scsi

$ ps waux | grep tgt
root      6657  1.4  0.0 217804  1436 ?        Ssl   2010 3970:29 tgtd
root      6658  0.0  0.0  12416   408 ?        S     2010   0:00 tgtd
markr    21397  0.0  0.0  61176   752 pts/0    SN+  14:52   0:00 grep tgt

$ sudo service tgtd status
tgtd (pid 6658 6657) is running...

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