Can't start tangotest

General Installation
1

Hello/ i have problems with tangtest starting. I’ve already red the topic http://www.tango-controls.org/community/forum/c/general/installation/start-the-tango-database/
And what I have: I have TANGO_HOST variable as MyComputerName:10000
I started start-db.bat:
D:\tango-root\tango\bin>start-db.bat -v4
main(): arrived
main(): export DataBase as named servant (name=database)
Ready to accept request

Then I opened new cmd window, started tangotest and z have the error:
D:\tango-root\tango\bin>start-tangotest.bat test -v4 Can’t build connection to TANGO database server, exiting
Then I started start-jive.bat and have the error (in the picture)
Can you give me some advises to start tangotest?
My next task is to try make pseudo server and pseudo client on my machine with PyTango, so I should be sure that tango is working.

2

Obviously there is a problem with the declaration of your TANGO_HOST for your jive startup and perhaps also when starting TangoTest.
in the error message of jive, you see that jive try to connect to 127.0.0.1:2809.
Your TANGO_HOST is WIN-8I0FBLHT50D:10000. Are you sure your hostname is recognized as WIN-8I0FBLHT50D?
try execute ping WIN-8I0FBLHT50D to verify it points to your machine.
you can also try “nslookup WIN-8I0FBLHT50D” to verify the ip address of this name corresponds to the ip address of your computer.
your TANGO_HOST variable should be the same when starting database server, jive and tangotest.

3

Thank you, Jean-Michel. I tried to ping WIN-8I0FBLHT50D.
as far as I understood, it is OK hostname. You can see the result in the picture

4

If I understand well your screenshot in russian, you are configured in network IPV6. Unfortunately this may be the cause of the problem. Tango had not been adapted to IPV6. Can you try using PI V4?

5

I executed “ping hostname -4” and translated the answer for you:
C:\Users\User>ping WIN-8I0FBLHT50D -4 Packeges exchange with WIN-8I0FBLHT50D [192.168.0.187] with 32 bites of data:
Answer from 192.168.0.187: num of bites=32 время<1мс TTL=128 Answer from 192.168.0.187: num of bites=32 время<1мс TTL=128 Answer from 192.168.0.187: num of bites=32 время<1мс TTL=128 Answer from 192.168.0.187: num of bites=32 время<1мс TTL=128 Statistics Ping for 192.168.0.187: Packeges: sent = 4, recieved = 4, lost= 0 (0% losts) approximate time of reception-transfer in ms: Minimal = 0мсек, Max = 0 мсек, Average = 0 мсек

I don’t know, what version of IP my computer uses when I start database. May be expression “-v4” controlls IP version ? But in this case I don’t know what my problem is..

6

Perhaps you have a problem with the name server. Let’s try another command to verify the correct ip address:
in the cmd window type “hostname”
It should give you the name of your machine.
Then type nslookup (where is the answer of the “hostname” command).
see example below

Try to set the TANGO_HOST using directly the IP address given by nslookup.
Use the environment variable TANGO_HOST=192.168.0.187:10000
Start the database
then start jive with the same TANGO_HOST. You should be able to browse the database.

7

Hi Anna,

IPv6 is the new (10 years old) internet protocol: IPv6 - Wikipedia

As you can see from Wikipedia the addresses are much longer in IPv6 (see IPv6 address - Wikipedia) e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334 compared to an IPv4 (the old and still largely used internet protocol)address which has only 4 bytes e.g. 10.0.0.0.

Tango supports only IPv4 (even if the underlying protocols omniORB and ZMQ support IPv6). I don’t know if anyone uses Tango with IPv6 - maybe someone has but I am not aware of it.

What Jean-Michel is suggesting is to use IPv4 addresses on your Windows laptop. This help page from Microsoft tells you how to switch on IPv4 under Windows:

Hope that makes it clearer.

Andy

8

Hi again,

I have enabled IPv6 on my Windows laptop just to see if I can reproduce your problem. I have IPv4 and IPv6 enabled but am using IPv4 as the network protocol because our site uses IPv4. Even if IPv6 enabled on my laptop I can start the database server and run jive to browse the database.

What does the nslookup command return for your laptop? For example on my laptop it returns:

PS C:\Program Files\tango\bin> nslookup lapgotz
Server: dns1.esrf.fr
Address: 160.103.208.9

Name: lapgotz.esrf.fr
Address: 172.24.12.168

As you can see the IP address is IPv4. In jive I see it with the IPv4 address:

  • Device Info ----------------------------------------

Device: sys/database/2
type_id: IDL:Tango/Device_5:1.0
iiop_version: 1.2
host: LAPGOTZ.esrf.fr (172.24.12.168)
port: 10000
Server: DataBaseds/2
Server PID: 10008
Exported: true
last_exported: 10th July 2018 at 10:28:18
last_unexported: 10th July 2018 at 10:27:21

9

Thank you for your answers. First of all:
D:\tango-root\tango\bin>hostname
WIN-8I0FBLHT50D
D:\tango-root\tango\bin>nslookup WIN-8I0FBLHT50D
Server: UnKnown
Address: 192.168.0.1 *** UnKnown doesn’t found WIN-8I0FBLHT50D: Non-existent domain

In IP settings I see next information:
Properties
SSID: dlink
Protocol: 802.11n
Security type: WPA2-Personal
Net diapason: 2,4 ГГц
Net chanal: 4
IPv4-address: 192.168.0.187
Manufacturer: Qualcomm Atheros Communications Inc.
Description: Qualcomm Atheros AR9485WB-EG Wireless Network Adapter
Driver version: 3.0.2.201
(MAC): ‎18-CF-5E-C1-AC-45

I haven’t “Edit” like in manual, but my laptop uses IPv4, am I right?

Also, I already tried to set veriable as TANGO_HOST=192.168.0.187:10000 (befor I wrote in this forum) but it didn’t help me..

10

Hi

Do you have others networks activated ?
Can you do a ipconfig /all ?

11

Hi, SGara_Nexeya.
Sorry, what do you mean? I use wi-fi, so I found IP settings like in mannual that Andy gave me. Do I need something else?

12

Sometimes on windows, I faced problmes :

  • when I had multiples networks connected
  • with VirtualBox /VMware virtual network adaptaters

It seems that the network interface wasn’t the good one to use.
If in this case, I disabled all the network adaptaters except the one I is ok for testing.

The ipconfig /all is a commande to run inside a DOS command to see all the activated networks

13

D:\tango-root\tango\bin>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : WIN-8I0FBLHT50D
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : abv

Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Qualcomm Atheros AR8172/8176/8178 PCI-E Fast Ethernet Controller (NDIS 6.30)
Physical Address. . . . . . . . . : 60-02-92-4E-00-CA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local area connection* 1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 1A-CF-5E-C1-AC-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9
Physical Address. . . . . . . . . : 00-FF-D4-80-C3-6C
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless network:

Connection-specific DNS Suffix . : abv
Description . . . . . . . . . . . : Qualcomm Atheros AR9485WB-EG Wireless Network Adapter
Physical Address. . . . . . . . . : 18-CF-5E-C1-AC-45
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::1c95:c582:f624:5c7%2(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.187(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 14 июля 2018 г. 7:53:58
Lease Expires . . . . . . . . . . : 15 июля 2018 г. 8:49:08
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 51957598
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-22-48-2B-97-60-02-92-4E-00-CA
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local area connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.abv:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : abv
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

14

I have the same situation, and after 1 days of trying all the above and other, I found out that default port 10000 on my Windows 10 for some reason can’t be use. I change running tango database server on another port (20000) and everything works!

To start the tango database device server using port 20000:

DataBaseds 2 -ORBendPoint giop:tcp::20000

In my case since the tango database is running on the local machine (laptop), I just define TANGO_HOST = localhost:20000