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fs: Re-implement object layer to remember the fd (#3509)

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This patch re-writes FS backend to support shared backend sharing locks for safe concurrent access across multiple servers.
This commit is contained in:
Harshavardhana
2017-01-16 17:05:00 -08:00
committed by GitHub
parent a054c73e22
commit 1c699d8d3f
68 changed files with 3860 additions and 1580 deletions
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26
cmd/format-config-v1.go
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@@ -149,20 +149,6 @@ func reduceFormatErrs(errs []error, diskCount int) (err error) {
return nil
}
// creates format.json, the FS format info in minioMetaBucket.
func initFormatFS(storageDisk StorageAPI) error {
// Initialize meta volume, if volume already exists ignores it.
if err := initMetaVolume([]StorageAPI{storageDisk}); err != nil {
return fmt.Errorf("Unable to initialize '.minio.sys' meta volume, %s", err)
}
return saveFSFormatData(storageDisk, newFSFormatV1())
}
// loads format.json from minioMetaBucket if it exists.
func loadFormatFS(storageDisk StorageAPI) (format *formatConfigV1, err error) {
return loadFormat(storageDisk)
}
// loadAllFormats - load all format config from all input disks in parallel.
func loadAllFormats(bootstrapDisks []StorageAPI) ([]*formatConfigV1, []error) {
// Initialize sync waitgroup.
@@ -206,18 +192,6 @@ func loadAllFormats(bootstrapDisks []StorageAPI) ([]*formatConfigV1, []error) {
return formatConfigs, sErrs
}
// genericFormatCheckFS - validates format config and returns an error if any.
func genericFormatCheckFS(formatConfig *formatConfigV1, sErr error) (err error) {
if sErr != nil {
return sErr
}
// Successfully read, validate if FS.
if !isFSFormat(formatConfig) {
return errFSDiskFormat
}
return nil
}
// genericFormatCheckXL - validates and returns error.
// if (no quorum) return error
// if (any disk is corrupt) return error // phase2