the drop_exist_collection can not take effect of milvus-backup tool

[hxlsky]

/opt/milvus_backup/milvus-backup restore -n mvsdb_ai_bak_20241210 -c mvsdb_ai.question_alignment --restore_index=true --drop_exist_collection=true --drop_exist_index=true --config=/opt/milvus_backup/conf/backup.yaml

it seems the drop_exist_collection can not take effect,why?

[yhmo]

The collection named "mvsdb_ai.question_alignment" exists so restore command could not create a new collection by this name.

Add "collection_suffix" parameter to specify the new collection name:

milvus-backup restore -n mvsdb_ai_bak_20241210 -c mvsdb_ai.question_alignment --collection_suffix="_restored" --restore_index=true --drop_exist_collection=true --drop_exist_index=true --config=/opt/milvus_backup/conf/backup.yaml

--collection_suffix="_restored" The restore command will create a new collection named "mvsdb_ai.question_alignment_restored".

[hxlsky]

hi,it can not take effect,the orignal collection can not drop

[hxlsky]

i thinks the two sentence does not take effect,or it is a bug?
--drop_exist_collection=true
--drop_exist_index=true

[yhmo]

Let me do some testing locally.

[hxlsky]

do you testing?

[yhmo]

Set skip_create_collection=true

./milvus-backup restore -c CCC -n my_backup --drop_exist_collection=true --skip_create_collection=true

[hxlsky]

ok,thanks!