Orbix locator constantly returns error IT_LOCATOR:MASTER_UNAVAIL

Dominique Sacre · 2013-05-17T17:43:00+00:00

Summary Orbix locator constantly returns error IT_LOCATOR:MASTER_UNAVAIL Article Number 13005 Environment Orbix 6.3.4 All Supported Operating Systems Orbix C Runtime Orbix 6.x Question/Problem Description Orbix locator constantly returns error IT_LOCATOR:MASTER_UNAVAILError IT_LOCATOR:MASTER_UNAVAIL is thrown when running on a replicated domainTrying to run any itadmin write operations results in IT_LOCATOR:MASTER_UNAVAIL errorFri, 13 Feb 2009 13:49:14.0000000 [hostname:9441] (IT_POA:12) E -could not connect to location domain: IDL:omg.org/CORBA/TRANSIENT:1.0:minor = 0x49540B0 0 (IT_LOCATOR:MASTER_UNAVAIL), completion status =MAYBE Clarifying Information Error Message Defect/Enhancement Number Cause This error is generated when the locator has been made part of a domain and the master replica happens to be unavailable. Resolution The immediate solution to this problem is to restart the master locator replica. However, if this happens to occur in a non-replicated domain, the locator will attempt to contact a non-existent master replica which would ultimately result in error IT_LOCATOR:MASTER_UNAVAIL. In such cases, verify if there are any additional replicas registered in the locator's database using the following command: %> itadmin pss_db list_replicas $IT_CONFIG_DOMAINS_DIR/../../var/$IT_DOMAIN_NAME/dbs/locator_$HOSTNAME/env.ior This command will return a list of all registered locator replicas. If for any reason (i.e. user administration error) there is more than one replica listed there, you will need to remove the bogus extra entries manually. For instance, if the command above returns the following: iona_services.locator.my_host1iona_services.locator.my_host2 Assuming that my_host1 is the name of the host where the locator should be running, you'd need to remove the second entry by issuing this command: %> itadmin pss_db remove_replica –iorfile $IT_CONFIG_DOMAINS_DIR/../../var/$IT_DOMAIN_NAME/dbs/locator_$HOSTNAME/env.ior iona_services.locator.my_host2 After this change, this problem will not happen again. Workaround Notes Attachment Created date: 06 September 2011 Last Modified: 13 February 2013 Last Published: 23 June 2012 First Published date: 09 September 2011 #Orbix#KnowledgeDocs

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May 17, 2013
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Dominique Sacre
Rocketeer

Summary	Orbix locator constantly returns error IT_LOCATOR:MASTER_UNAVAIL
Article Number	13005
Environment	Orbix 6.3.4 All Supported Operating Systems Orbix C Runtime Orbix 6.x
Question/Problem Description	Orbix locator constantly returns error IT_LOCATOR:MASTER_UNAVAIL Error IT_LOCATOR:MASTER_UNAVAIL is thrown when running on a replicated domain Trying to run any itadmin write operations results in IT_LOCATOR:MASTER_UNAVAIL error Fri, 13 Feb 2009 13:49:14.0000000 [hostname:9441] (IT_POA:12) E - could not connect to location domain: IDL:omg.org/CORBA/TRANSIENT:1.0: minor = 0x49540B0 0 (IT_LOCATOR:MASTER_UNAVAIL), completion status = MAYBE
Clarifying Information
Error Message
Defect/Enhancement Number
Cause	This error is generated when the locator has been made part of a domain and the master replica happens to be unavailable.
Resolution	The immediate solution to this problem is to restart the master locator replica. However, if this happens to occur in a non-replicated domain, the locator will attempt to contact a non-existent master replica which would ultimately result in error IT_LOCATOR:MASTER_UNAVAIL. In such cases, verify if there are any additional replicas registered in the locator's database using the following command: %> itadmin pss_db list_replicas $IT_CONFIG_DOMAINS_DIR/../../var/$IT_DOMAIN_NAME/dbs/locator_$HOSTNAME/env.ior This command will return a list of all registered locator replicas. If for any reason (i.e. user administration error) there is more than one replica listed there, you will need to remove the bogus extra entries manually. For instance, if the command above returns the following: iona_services.locator.my_host1 iona_services.locator.my_host2 Assuming that my_host1 is the name of the host where the locator should be running, you'd need to remove the second entry by issuing this command: %> itadmin pss_db remove_replica –iorfile $IT_CONFIG_DOMAINS_DIR/../../var/$IT_DOMAIN_NAME/dbs/locator_$HOSTNAME/env.ior iona_services.locator.my_host2 After this change, this problem will not happen again.
Workaround
Notes
Attachment