EM 12c, EM 13c: Database Target is Shown as UP but Homepage Reports Error: IO Error: Got minus one from a read call
Last updated on SEPTEMBER 01, 2017
Applies to:Enterprise Manager for Oracle Database - Version 22.214.171.124.0 and later
Information in this document applies to any platform.
A database target is shown as UP in the console but the home page in EM Cloud Console shows the following error:
IO Error: Got minus one from a read call The Connect Descriptor was (DESCRIPTION=(ADDRESS_LIST = (ADDRESS=(PROTOCOL=tcp)(HOST=<target database host name>)(PORT=<listener port>)))(CONNECT_DATA=(SID=<target database SID>)(SERVER=DEDICATED)))
- Attempting a 'Test Connection' from the Oracle Database -> Target Setup -> Monitoring Configuration page, also reports similar error.
- From the OMS server, attempting to connect to this target database using the above connect string via sqlplus also fails:
The sqlplus utility is available in the OMS installation from 126.96.36.199 version and above. In the lower releases, the above can be attempted using sqlplus from another RDBMS Client / Server installation, if available.
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