[QUESTION]: How to copy collection from one milvus instance to another?

[heibaidaolx123]

Is there an existing issue for this?

• I have searched the existing issues

What is your question?

Hi,
I want to copy a collection with auto-id on from one instance to another, and keeps all fields unchanged.
I tried the LocalBulkWriter to save the rows generated by collection.query_iterator, and an error was thrown:
<MilvusException: (code=1, message=The primary key field 'id' is auto-id, no need to provide)>
So my question is, how to copy all rows of a collection on to another collection (both with audo-id on), to keep the primary field id unchanged.

Anything else?

No response

[XuanYang-cn]

@heibaidaolx123 Try milvus backup tool https://github.com/zilliztech/milvus-backup