嗨粪，

我建议迁移到 以太坊权限证明(如果可能).将来会得到更好的支持，并且更适合于专用网络.

I recommend migrating to Ethereum Proof-of-Authority if possible.  This will be better supported going forward and is much more suited for private networks.

您可以检查计算机上进程的内存消耗以帮助找出罪魁祸首吗?

Can you check the memory consumption by processes on the machine to help identify the culprit?