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volume: use sorted index map for readonly volumes

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This commit is contained in:
Chris Lu
2019-12-18 01:21:21 -08:00
parent 2f21beaccd
commit 58f88e530c
7 changed files with 165 additions and 53 deletions
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4
weed/storage/erasure_coding/ec_volume.go
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@@ -186,10 +186,10 @@ func (ev *EcVolume) LocateEcShardNeedle(needleId types.NeedleId, version needle.
}
func (ev *EcVolume) FindNeedleFromEcx(needleId types.NeedleId) (offset types.Offset, size uint32, err error) {
return searchNeedleFromEcx(ev.ecxFile, ev.ecxFileSize, needleId, nil)
return SearchNeedleFromSortedIndex(ev.ecxFile, ev.ecxFileSize, needleId, nil)
}
func searchNeedleFromEcx(ecxFile *os.File, ecxFileSize int64, needleId types.NeedleId, processNeedleFn func(file *os.File, offset int64) error) (offset types.Offset, size uint32, err error) {
func SearchNeedleFromSortedIndex(ecxFile *os.File, ecxFileSize int64, needleId types.NeedleId, processNeedleFn func(file *os.File, offset int64) error) (offset types.Offset, size uint32, err error) {
var key types.NeedleId
buf := make([]byte, types.NeedleMapEntrySize)
l, h := int64(0), ecxFileSize/types.NeedleMapEntrySize