How to fix the Oracle error CRS-09503: The system monitor service on this host is unable to communicate with the Cluster Logger Service on host string, and will log data to the local repository.?

In this post, you’ll learn more about the Oracle ErrorCRS-09503: The system monitor service on this host is unable to communicate with the Cluster Logger Service on host string, and will log data to the local repository. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CRS-09503: The system monitor service on this host is unable to communicate with the Cluster Logger Service on host string, and will log data to the local repository.

Reason for the Error CRS-09503: The system monitor service on this host is unable to communicate with the Cluster Logger Service on host string, and will log data to the local repository.

Cause: Communication was lost with the Cluster Logger Service node.

How to fix the Error CRS-09503: The system monitor service on this host is unable to communicate with the Cluster Logger Service on host string, and will log data to the local repository. ?

You can fix this error in Oracle by following the below steps

Action: Verify all network connections between cluster nodes and repair any problematic connections. If no network problems are found,

1. Run diagcollection.pl.

2. Contact Oracle Support Services.