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WINDOWS: Listener Hangs & Lsnrctl Commands Are Slow or Hang (Doc ID 1319797.1)

Last updated on JUNE 01, 2020

Applies to:

Oracle Net Services - Version 11.1.0.7 to 18.1.0.0.0 [Release 11.1 to 18.1]
Microsoft Windows x64 (64-bit)
Microsoft Windows (32-bit)
This issue is limited to the Windows OS.


Symptoms


Check this location: $ORACLE_BASE\diag\tnslsnr\<hostname>\listener\trace\

The listener.log might contain messages similar to the following DBGRL error being repeated throughout:

Or the lsnrctl status command might hang altogether.  In other words, lsnrctl status or services is unresponsive. 

Changes

No recent changes have taken place on this server.   It is likely that this installation has been in place for some time as the listener.log has grown to at or near 4G in size.  It is also likely that ADR diagnostic for the listener is enabled on this server.  i.e. No DIAG_ADR_<listener_name>=OFF in listener.ora.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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