以前听客户说监听日志大于4G，监听出现问题。本次另一个客户也出现这个问题，表现为监听lsnrctl start,status长久hang住
匹配mos
WINDOWS: Listener Hangs & Lsnrctl Commands Are Slow or Hang (Doc ID 1319797.1)
APPLIES TO:
Oracle Net Services - Version 11.1.0.7 to 18.1.0.0. [Release 11.1 to 18.1]
Microsoft Windows x64 (-bit)
Microsoft Windows (-bit)
This issue is limited to the Windows OS.
问题，监听日志大于4️⃣g，因此需要备份清理。
Since ADR Diagnostics are enabled for this listener these steps cannot be done dynamically using the lsnrctl utility.
e.g. LSNRCTL>set log_file mylog Will yield: TNS-: Cannot set trace/log directory under ADR. However, it is possible to disable the flat file listener logging using the following commands: LSNRCTL>set current_listener <listener_name>
LSNRCTL>set log_status OFF
LSNRCTL>save_config This will prevent this issue from arising in the future. This also stop the ADR logging.