SQL5043N Support for one or more communications protocols failed to start successfully

After configuring Tivoli Directory Server databases some time we get following exception in:

/home/idsinst/sqllib/db2dump/db2diag.log

/home/idsinst/sqllib/log/db2start.log

SQL5043N  Support for one or more communications protocols failed to start successfully. However, core database manager functionality started successfully.

1. In order to resolve the above error enter following two lines in /etc/services file:

idsinstsvcids    3737/tcp
idsinstsvcidsi    3766/tcp

2. Run following commands to view and update SVCENAME parameter of idsinst instance:

-> db2 get dbm cfg | grep SVC

If it’s not set to idsinstsvcids, then run the following command to set it:

-> db2 update dbm cfg using SVCENAME idsinstsvcids

3. Verify TDS db alias node LDAPDB2N using correct service name i.e idsinstsvcids:

-> db2 list node directory

If LDAPDB2N node is not using idsinstsvcids service name, then un-catalog it and re-catalog it with correct service name.

-> db2 uncatalog node LDAPDB2N

Note: If you get the error SQL1326N The file or directory “” cannot be accesse, while running above command.

Then update the Group access (i.e Read and Write) for the files sqlnodir and sqlnobak inside the directory /home/idsinst/sqllib/sqlnodir/ from db2grp1 to idsldap OR dbsysadm (which ever group  idsinst is member of)

-> db2 catalog tcpip node LDAPDB2N remote localhost server idsinstsvcids

Node: After this step you might have to delete and recreate the itds db.

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About Ishtiaque

I am IBM Certified Infrastructure Systems Architect, Linux Foundation Certified System Administrator, Oracle Certified Programmer in Java and Web Component Developer, and TOGAF 9 certified with over 10 years of support and development experience in IBM middleware software and Java. Additionally, have a sound grip in databases and OpenStack administration. I hold the following certifications: IBM Certified Infrastructure Systems Architect Linux Foundation Certified System Administrator (LFCS) TOGAF 9 Certified Oracle Certified Expert, Java EE6 Web Component Developer Oracle Certified Professional – Java 6 Programmer ITIL v3 Foundation Certified IBM Certified Solution Architect – Cloud Computing Infrastructure V1 IBM Certified System Administrator – WebSphere Portal V8, V7, V6.1, V6 IBM Certified System Administrator – WebSphere Application Server V7, V6.1 IBM Certified System Administrator – AIX V7 IBM Certified System Administrator – WebSphere MQ V7 IBM Certified Deployment Professional – Business Process Manager Advanced V7.5 IBM Certified Solution Advisor – Cloud Computing Architecture V3 IBM Certified Solution Developer – WebSphere Portal V5.1
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