Getting a strange error

Hi I am getting this error ClientError: (-1, ‘Node not found for partition namespace:2544’, ‘src/main/aerospike/as_cluster.c’, 932, False). Can anyone let me know the reason for this error. I have setup a cron to check for connectivity issue and sometime the connection gets established easily and sometimes it fails with the issue above.

What client/version? Which server? What troubleshooting have you done so far? I think this error usually means that the cluster is either in a bad state, or the client isn’t able to tend to get the latest partition map… It’s trying to query a dead node.