'mc admin info' freezes and fail on the gateway

[sgandon]

Expected behavior

mc admin info <alias>

should return the server info in gateway mode

Actual behavior

this command fails with latest version of mc and minio

Minio in server mode                =>  mc admin info   ok
Minio in gateway mode (no etcd)     =>  mc admin info   Fails (after 1:30mn)
Minio in gateway mode (with etcd)   =>  mc admin info   Fails (after 1:30mn) 

here is the error reported after freezing for 1mn30
mc: <ERROR> Unable to get service status. Failed to parse server response: invalid character '<' looking for beginning of value

Steps to reproduce the behavior

1/ first launch minio in gateway mode (S3 for instance)

  AWS_ACCESS_KEY_ID=${MINIO_AWS_ACCESS_KEY_ID} \
  AWS_SECRET_ACCESS_KEY=${MINIO_AWS_SECRET_ACCESS_KEY} \
  MINIO_ACCESS_KEY=admin \
  MINIO_SECRET_KEY=this-is-not-so-secret \
  MINIO_BROWSER=on \
  ./minio gateway s3

2/ then run the mc command

MC_HOST_test=http://admin:this-is-not-so-secret@127.0.0.1:9000 ./mc --config-dir . admin info test
mc: <ERROR> Unable to get service status. Failed to parse server response: invalid character '<' looking for beginning of value.

mc --version

./mc --version
mc version RELEASE.2021-03-23T05-46-11Z
./minio --version
minio version RELEASE.2021-03-17T02-33-02Z

[harshavardhana]

@sgandon please paste the --debug output

[sgandon]

here is the debug message that keeps repeatings over

mc: <DEBUG> GET /minio/admin/v3/info HTTP/1.1
Host: 127.0.0.1:9000
User-Agent: MinIO (darwin; amd64) madmin-go/0.0.1 mc/RELEASE.2021-03-23T05-46-11Z
Authorization: AWS4-HMAC-SHA256 Credential=admin/20210325//s3/aws4_request, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=**REDACTED**
X-Amz-Content-Sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
X-Amz-Date: 20210325T154236Z
Accept-Encoding: gzip

mc: <DEBUG> HTTP/1.1 500 Internal Server Error
Content-Length: 283
Accept-Ranges: bytes
Content-Security-Policy: block-all-mixed-content
Content-Type: application/xml
Date: Thu, 25 Mar 2021 15:42:36 GMT
Server: MinIO
Vary: Origin
X-Amz-Request-Id: 166FA038C18161C0
X-Xss-Protection: 1; mode=block

<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>InternalError</Code><Message>We encountered an internal error, please try again.</Message><Resource>/minio/admin/v3/info</Resource><RequestId>166FA038C18161C0</RequestId><HostId>16b5741b-5191-4033-9f6f-42049d1a2d07</HostId></Error>mc: <DEBUG> Response Time:  2.863186ms

[harshavardhana]

what is the server verson here? @sgandon

[sgandon]

as mentionned above this is

./minio --version
minio version RELEASE.2021-03-17T02-33-02Z