My Oracle Support Banner

EM13c: OMS Hangs / becomes Unresponsive and "emctl status oms" Hangs due to Deadlock between ADFC threads (Doc ID 2394769.1)

Last updated on FEBRUARY 21, 2019

Applies to:

Enterprise Manager Base Platform - Version and later
Information in this document applies to any platform.


13c OMS was found to be hung / unresponsive. None of the agents could upload to the OMS and the Console UI is not accessible either.

-  "emctl status oms" command takes10+ minutes to show the output and returns:

-  The number of threads in Blocked state were also found to be high.
    For example, below were the thread count based on the status:

Total number of threads - 631
Waiting : 68
Runnable : 51
Blocked : 397
Timed waiting : 108

    In the above, close to 62% of the threads are in Blocked state. Note that the above numbers could vary based on the setup and OMS configuration.

-  If the OMS is stopped and re-started, it functions fine for few days and then the issue re-occurs.




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.