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Unable to contact albd_server on host

Technote (troubleshooting)


Problem(Abstract)

This technote explains why the error "multitool: Error: Unable to contact albd_server on host 'hostX'" occurs when using IBM® Rational® ClearCase MultiSite® to send update packets or performing a multitool lsepoch -actual command.

Symptom

After creating a new replica at a remote site the following error is reported when trying to ship synchronization packets or trying to run lsepoch -actual to communicate with the new replica:

$ multitool lsepoch -actual fin_bm_bm@/scm_bm_bm
For VOB replica "/scm_bm_bm":
multitool: Error: Unable to contact albd_server on host 'hostX'    
multitool: Error: Server host "hostX" may be running a ClearCase release that does not provide this service
multitool: Error: Could not get handle for remote VOB replica "fin_bm_bm": ClearCase object not found


Cause


Network traffic on port 371 which is used by ClearCase may be blocked.

Refer to the ClearCase Knowledge Center for further information.

This can also happen if ClearCase is not installed on the host reported in the error.
Note: The host does have to exist for this error to occur.


Diagnosing the problem

Ping is working fine but a traceroute on port 371 cannot find the target host.

ccadmin@vobserver ~¨$ traceroute -p 371 10.84.72.208                  
traceroute to 10.84.72.208 (10.84.72.208), 30 hops max, 46 byte packets
1  129.1.0.1 (129.1.0.1)  0.437 ms  2.991 ms  0.401 ms                  
2  129.1.30.14 (129.1.30.14)  0.241 ms  0.226 ms  0.221 ms              
3  10.64.64.1 (10.64.64.1)  0.989 ms  1.095 ms  0.991 ms                
* * *
* * *
...

Refer to technote 1152315 - Determine network connectivity to a remote ClearCase server using albd_list for further information about how to test for ClearCase network connectivity.


Resolving the problem

Resolve the network issue that may be blocking port 371 to ensure that ClearCase communications between the machines is possible.

Also, check that the replica wasn't created with an incorrect host name. You can run a multitool lsreplica -long to check the host name.

Document information

More support for: Rational ClearCase
Synchronization

Software version: 7.0, 7.0.0.1, 7.0.0.2, 7.0.1, 7.0.1.1, 7.1

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows

Reference #: 1298788

Modified date: 12 August 2009