@(env bash $(PWD)/buildscripts/verify-healing-with-root-disks.sh)

verify-healing-with-rewrite: ## verify healing to rewrite old xl.meta -> new xl.meta
	@echo "Verify healing with rewrite"
	@GORACE=history_size=7 CGO_ENABLED=1 go build -race -tags kqueue -trimpath --ldflags "$(LDFLAGS)" -o $(PWD)/minio 1>/dev/null
	@(env bash $(PWD)/buildscripts/rewrite-old-new.sh)

verify-healing-inconsistent-versions: ## verify resolving inconsistent versions

Author: Klaus Post <******@****.***>
Date:   Mon Nov 8 08:41:27 2021 -0800

    Close stream on panic (#13605)

    Always close streamHTTPResponse on panic on main thread to avoid
    write/flush after response handler has returned.
```

```
λ git cherry-pick 4f3317effea38c203c358af9cb5ce3c0e4173976
```

MINIO_IDENTITY_OPENID_CLIENT_SECRET*        (string)    secret for the unique public identifier for apps
MINIO_IDENTITY_OPENID_ROLE_POLICY           (string)    Set the IAM access policies applicable to this client application and IDP e.g. "app-bucket-write,app-bucket-list"
MINIO_IDENTITY_OPENID_CLAIM_NAME            (string)    JWT canned policy claim name (default: 'policy')

## Cluster probe

### Cluster-writeable probe

The reply is '200 OK' if cluster has write quorum if not it returns '503 Service Unavailable'.

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block

| `minio_system_drive_writes_per_sec`            | `gauge`   | Writes per second on a drive                                       | `drive,set_index,drive_index,pool_index,server`     |
| `minio_system_drive_writes_kb_per_sec`         | `gauge`   | Kilobytes written per second on a drive                            | `drive,set_index,drive_index,pool_index,server`     |

| `minio_node_drive_writes_per_sec`    | Writes per second on a drive.                            |
| `minio_node_drive_writes_kb_per_sec` | Kilobytes written per second on a drive.                 |
| `minio_node_drive_writes_await`      | Average time for write requests to be served on a drive. |

protection bits added automatically to provide the regular safety for these objects up to 50% of the number of drives.
This will allow normal write operations to take place on systems that exceed the write tolerance.

        sip := siphash.New(id[:])
        sip.Write([]byte(key))
        return int(sip.Sum64() % uint64(cardinality))
}
```

Input for the key is the object name specified in `PutObject()`, returns a unique index. This index is one of the erasure sets where the object will reside. This function is a consistent hash for a given object name i.e for a given object name the index returned is always the same.

### Consistency Guarantees

MinIO follows strict **read-after-write** and **list-after-write** consistency model for all i/o operations both in distributed and standalone modes. This consistency model is only guaranteed if you use disk filesystems such as xfs, zfs or btrfs etc.. for distributed setup.

MinIO uses [`klauspost/compress/s2`](https://github.com/klauspost/compress/tree/master/s2)
streaming compression due to its stability and performance.

This algorithm is specifically optimized for machine generated content.
Write throughput is typically at least 500MB/s per CPU core,
and scales with the number of available CPU cores.
Decompression speed is typically at least 1GB/s.

This means that in cases where raw IO is below these numbers