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Add x-amz-storage-class support (#5295)

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This adds configurable data and parity options on a per object
basis. To use variable parity

- Users can set environment variables to cofigure variable
parity

- Then add header x-amz-storage-class to putobject requests
with relevant storage class values

Fixes #4997
This commit is contained in:
Nitish Tiwari
2017-12-22 16:58:13 +05:30
committed by GitHub
parent f1355da72e
commit 1a3dbbc9dd
25 changed files with 1237 additions and 129 deletions
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8
cmd/xl-v1-metadata.go
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@@ -396,7 +396,8 @@ func (xl xlObjects) readXLMetaParts(bucket, object string) (xlMetaParts []object
}
// If all errors were ignored, reduce to maximal occurrence
// based on the read quorum.
return nil, reduceReadQuorumErrs(ignoredErrs, nil, xl.readQuorum)
readQuorum := len(xl.storageDisks) / 2
return nil, reduceReadQuorumErrs(ignoredErrs, nil, readQuorum)
}
// readXLMetaStat - return xlMetaV1.Stat and xlMetaV1.Meta from one of the disks picked at random.
@@ -423,7 +424,8 @@ func (xl xlObjects) readXLMetaStat(bucket, object string) (xlStat statInfo, xlMe
}
// If all errors were ignored, reduce to maximal occurrence
// based on the read quorum.
return statInfo{}, nil, reduceReadQuorumErrs(ignoredErrs, nil, xl.readQuorum)
readQuorum := len(xl.storageDisks) / 2
return statInfo{}, nil, reduceReadQuorumErrs(ignoredErrs, nil, readQuorum)
}
// deleteXLMetadata - deletes `xl.json` on a single disk.
@@ -513,7 +515,7 @@ func writeUniqueXLMetadata(disks []StorageAPI, bucket, prefix string, xlMetas []
}
// writeSameXLMetadata - write `xl.json` on all disks in order.
func writeSameXLMetadata(disks []StorageAPI, bucket, prefix string, xlMeta xlMetaV1, writeQuorum, readQuorum int) ([]StorageAPI, error) {
func writeSameXLMetadata(disks []StorageAPI, bucket, prefix string, xlMeta xlMetaV1, writeQuorum int) ([]StorageAPI, error) {
var wg = &sync.WaitGroup{}
var mErrs = make([]error, len(disks))