OperationAccessor.setCallId(op, callId);
boolean sent = operationService.send(op, invTarget);
if (!sent) {
operationService.deregisterRemoteCall(callId);
operationService.deregisterBackupCall(callId);
notify(new RetryableIOException("Packet not sent to -> " + invTarget));
}
} else {
if (op instanceof BackupAwareOperation) {
final long callId = operationService.newCallId();
registerBackups((BackupAwareOperation) op, callId);