test level 3: restart (#2384)

* test level 3: restart

Signed-off-by: zw <zw@milvus.io>

* add namepsace

Signed-off-by: zw <zw@milvus.io>

* update

Signed-off-by: zw <zw@milvus.io>

* update

Signed-off-by: zw <zw@milvus.io>

* Update utils.py

Signed-off-by: zw <zw@milvus.io>

* Update test_level_3.py

Signed-off-by: zw <zw@milvus.io>

* Update Jenkinsfile

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* clean compile warning (#2380)

Signed-off-by: yudong.cai <yudong.cai@zilliz.com>
Signed-off-by: zw <zw@milvus.io>

* delete pod

Signed-off-by: zw <zw@milvus.io>

* update

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* debug

Signed-off-by: zw <zw@milvus.io>

* recover

Signed-off-by: zw <zw@milvus.io>

Co-authored-by: zw <zw@milvus.io>
Co-authored-by: Cai Yudong <yudong.cai@zilliz.com>