Oracle Error ORA-26826: string apply coordinator and apply slave are unable to communicate.

Oracle Error Message

ORA-26826: string apply coordinator and apply slave are unable to communicate.

Reason for the Error

GoldenGate, XStream or Streams Apply process may have died unexpectedly.

Solution

Check your system for anomalies and restart apply. If this error persists, contact Oracle Support Services. See trace file for more details.