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This PR is to add comments to CachedState in fluid/pkg/ddc/alluxio/operations/cached.go #5941

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This PR is to add comments to CachedState in fluid/pkg/ddc/alluxio/operations/cached.go #5941

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10 changes: 10 additions & 0 deletions pkg/ddc/alluxio/operations/cached.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,15 @@ import (
units "github.com/docker/go-units"
)

// CachedState retrieves the current cached capacity from the Alluxio cluster.
// It executes the "alluxio fsadmin report" command to obtain the cluster's
// storage report, parses the output to locate the "Used Capacity:" field, and
// converts the value to bytes.
//
// Returns:
// - cached (int64): The cached capacity in bytes parsed from the Alluxio report.
// - err (error): An error if the command execution fails, the output cannot
// be parsed, or the "Used Capacity:" field is missing.
func (a AlluxioFileUtils) CachedState() (cached int64, err error) {
var (
command = []string{"alluxio", "fsadmin", "report"}
Expand All @@ -37,6 +46,7 @@ func (a AlluxioFileUtils) CachedState() (cached int64, err error) {
err = fmt.Errorf("execute command %v with expectedErr: %v stdout %s and stderr %s", command, err, stdout, stderr)
return
}

str := strings.Split(stdout, "\n")

for _, s := range str {
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