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SEVERE: Attempt To Configure ONS In FanManager Failed With Oracle.ons.NoServersAvailable: Subscripti (Doc ID 2616175.1)

Last updated on JANUARY 07, 2021

Applies to:

Autonomous Database on Shared Infrastructure - Version N/A and later
Information in this document applies to any platform.

Symptoms

Connecting to ADW through jdbc client getting following message

SEVERE: attempt to configure ONS in FanManager failed with oracle.ons.NoServersAvailable: Subscription time out

jdbc connection to ADW getting rows with following SEVERE exception

Nov 11, 2019 11:49:17 AM oracle.simplefan.impl.FanManager configure
SEVERE: attempt to configure ONS in FanManager failed with oracle.ons.NoServersAvailable: Subscription time out
Driver Name: Oracle JDBC driver
Driver Version: 18.3.0.0.0
Default Row Prefetch Value is: 20
Database Username is: HR

However user gets query output  and still above message get displayed.


Nov 11, 2019 11:49:17 AM oracle.simplefan.impl.FanManager configure
SEVERE: attempt to configure ONS in FanManager failed with oracle.ons.NoServersAvailable: Subscription time out
Driver Name: Oracle JDBC driver
Driver Version: 18.3.0.0.0
Default Row Prefetch Value is: 20
Database Username is: HR

FIRST_NAME  LAST_NAME
---------------------
aaaaa bbbb
ccccc ddddd

......

Cause

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In this Document
Symptoms
Cause
Solution


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