It seems like your nginx has the wrong configuration for reverse proxy
of S3.

Thanks.

Zhenshi Zhou wrote:
> this is ES error log：
> {
>    "error": {
>      "root_cause": [
>        {
>          "type": "repository_verification_exception",
>          "reason": "[test] path  is not accessible on master node"
>        }
>      ],
>      "type": "repository_verification_exception",
>      "reason": "[test] path  is not accessible on master node",
>      "caused_by": {
>        "type": "i_o_exception",
>        "reason": "Unable to upload object
> [tests-CX3jGTbyRgOeOZJYci8MnQ/master.dat] using a single upload",
>        "caused_by": {
>          "type": "sdk_client_exception",
>          "reason": "sdk_client_exception: Unable to execute HTTP
> request: oldelk-snapshot.rgw.abc.cn <http://oldelk-snapshot.rgw.abc.cn>",
>          "caused_by": {
>            "type": "i_o_exception",
>            "reason": "oldelk-snapshot.rgw.abc.cn
> <http://oldelk-snapshot.rgw.abc.cn>"
>          }
>        }
>      }
>    },
>    "status": 500
> }
>
> Tom Black <tom@pobox.store> 于2020年9月2日周三 下午4:55写道：
>
>     Zhenshi Zhou wrote:
>      > My fellows wanna use ceph rgw to store ES backup and Nexus blobs.
>      > But the services cannot connect to the rgw with s3 protocol when I
>      > provided them with the frontend nginx address(virtual ip). Only when
>      > they use the backend rgw's address(real ip) the ES and Nexus works
>      > well with rgw.
>
>     you should provide both the client and server's error logs.
>
>     Thanks.
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