milvus: [Bug]: cluster mode ,query node down

Is there an existing issue for this?

• I have searched the existing issues

Environment

- Milvus version:2.0.1
- Deployment mode(standalone or cluster):cluster
- SDK version(e.g. pymilvus v2.0.0rc2):
- OS(Ubuntu or CentOS): 2.0.0
- CPU/Memory: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz 12core /16G

- GPU: 
- Others:

Current Behavior

I want to run the demo Lab Test 2: 100-Million-Scale Vector Similarity Search,but when I load the index,the query node died.

Expected Behavior

I want to run the demo Lab Test 2: 100-Million-Scale Vector Similarity Search,but when I load the index,the query node died.

Steps To Reproduce

1:按照https://github.com/milvus-io/bootcamp/blob/master/benchmark_test/lab2_sift1b_100m.md 
这个步骤用单机cluster模式插入了41,500,000条数据
2：再Attu 执行load操作

3：load没有成功，querynode节点挂了

3：再load 提示no online queryload to query

Anything else?

milvus-proxy.log milvus-pulsar.log milvus-minio.log milvus-datacoord.log milvus-querynode.log milvus-querycoord.log milvus-rootcoord.log milvus-indexcoord.log indexnode.log milvus-datanode.log milvus cluster .docx