Solaris Cluster Zone Cluster Oracle UNIX Distributed Lock Manager (UDLM/DLM) Failed to Start Due to Lack of Shared Memory with "Prog <ucmm_reconf> step <cmmstart>: timed out"
(Doc ID 1939670.1)
Last updated on AUGUST 12, 2020
Applies to:Solaris Cluster - Version 3.2 U2 to 4.3 [Release 3.2 to 4.3]
Oracle Solaris on x86-64 (64-bit)
Oracle Solaris on SPARC (64-bit)
This issue was observed in a Solaris Cluster Zone Cluster which was configured to host an Oracle RAC database. The DLM (Distributed Lock Manager) failed to start and results in a timeout of the ucmm in step cmmstart. This leads to call the abort step and terminates the ucmmd daemon.
Symptoms visible in various log files:
The /var/adm/messages of the global zone:
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