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handle cases when .idx files are also readonly

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adjusting log level
This commit is contained in:
Chris Lu
2013-08-11 11:38:55 -07:00
parent 27f04a382a
commit 7cef280bdc
5 changed files with 27 additions and 17 deletions
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29
go/storage/volume.go
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@@ -73,12 +73,12 @@ func (v *Volume) load(alsoLoadIndex bool) error {
if e == nil && alsoLoadIndex {
var indexFile *os.File
if v.readOnly {
glog.V(4).Infoln("opening file", fileName+".idx")
glog.V(2).Infoln("opening file", fileName+".idx")
if indexFile, e = os.Open(fileName + ".idx"); e != nil && !os.IsNotExist(e) {
return fmt.Errorf("cannot open index file %s.idx: %s", fileName, e.Error())
}
if indexFile != nil {
glog.V(4).Infoln("check file", fileName+".cdb")
glog.V(2).Infoln("check file", fileName+".cdb")
if _, err := os.Stat(fileName + ".cdb"); os.IsNotExist(err) {
glog.V(0).Infof("converting %s.idx to %s.cdb", fileName, fileName)
if e = ConvertIndexToCdb(fileName+".cdb", indexFile); e != nil {
@@ -89,7 +89,7 @@ func (v *Volume) load(alsoLoadIndex bool) error {
}
}
}
glog.V(4).Infoln("open file", fileName+".cdb")
glog.V(2).Infoln("open file", fileName+".cdb")
if v.nm, e = OpenCdbMap(fileName + ".cdb"); e != nil {
if os.IsNotExist(e) {
glog.V(0).Infof("Failed to read cdb file :%s, fall back to normal readonly mode.", fileName)
@@ -99,14 +99,23 @@ func (v *Volume) load(alsoLoadIndex bool) error {
}
}
}
glog.V(4).Infoln("open to write file", fileName+".idx")
indexFile, e = os.OpenFile(fileName+".idx", os.O_RDWR|os.O_CREATE, 0644)
if e != nil {
return fmt.Errorf("cannot create Volume Data %s.dat: %s", fileName, e.Error())
if v.readOnly {
glog.V(1).Infoln("open to read file", fileName+".idx")
indexFile, e = os.OpenFile(fileName+".idx", os.O_RDONLY, 0644)
if e != nil {
return fmt.Errorf("cannot read Volume Data %s.dat: %s", fileName, e.Error())
}
} else {
glog.V(1).Infoln("open to write file", fileName+".idx")
indexFile, e = os.OpenFile(fileName+".idx", os.O_RDWR|os.O_CREATE, 0644)
if e != nil {
return fmt.Errorf("cannot create Volume Data %s.dat: %s", fileName, e.Error())
}
}
glog.V(0).Infoln("loading file", fileName+".idx", "readonly", v.readOnly)
if v.nm, e = LoadNeedleMap(indexFile); e != nil {
glog.V(0).Infoln("loading error:", e)
}
glog.V(4).Infoln("loading file", fileName+".idx")
v.nm, e = LoadNeedleMap(indexFile)
glog.V(4).Infoln("loading error:", e)
}
return e
}