// Fetch fetches filesystem metrics for all mounted filesystems and returns
// a single event containing aggregated data.
func (m *MetricSet) Fetch() (common.MapStr, error) {
fss, err := system.GetFileSystemList()
if err != nil {
return nil, errors.Wrap(err, "filesystem list")
}
// These values are optional and could also be calculated by Kibana
var totalFiles, totalSize, totalSizeFree, totalSizeUsed uint64
for _, fs := range fss {
fsStat, err := system.GetFileSystemStat(fs)
if err != nil {
debugf("error fetching filesystem stats for '%s': %v", fs.DirName, err)
continue
}
totalFiles += fsStat.Files
totalSize += fsStat.Total
totalSizeFree += fsStat.Free
totalSizeUsed += fsStat.Used
}
return common.MapStr{
"total_size": common.MapStr{
"free": totalSizeFree,
"used": totalSizeUsed,
"total": totalSize,
},
"count": len(fss),
"total_files": totalFiles,
}, nil
}
// Fetch fetches filesystem metrics for all mounted filesystems and returns
// an event for each mount point.
func (m *MetricSet) Fetch() ([]common.MapStr, error) {
fss, err := system.GetFileSystemList()
if err != nil {
return nil, errors.Wrap(err, "filesystem list")
}
filesSystems := make([]common.MapStr, 0, len(fss))
for _, fs := range fss {
fsStat, err := system.GetFileSystemStat(fs)
if err != nil {
debugf("error getting filesystem stats for '%s': %v", fs.DirName, err)
continue
}
system.AddFileSystemUsedPercentage(fsStat)
filesSystems = append(filesSystems, system.GetFilesystemEvent(fsStat))
}
return filesSystems, nil
}