[HDDS-4391] UnixPath.toUri() is expensive

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.1.0
• Component/s: Ozone Manager
• Target Version/s: 1.1.0
• Assignee: Bharat Viswanadham
• Reporter: Wei-Chiu Chuang
• Created: 23/Oct/20 20:16
• Updated: 30/Oct/20 23:19
• Resolved: 30/Oct/20 23:19

Description

OM makes call this API to look up a key.

This call accounts for 20% (give or take) of OM request handler overhead. Would be great if we can get rid of this call.

OMClientRequest.java

@SuppressFBWarnings("DMI_HARDCODED_ABSOLUTE_FILENAME")
public static String validateAndNormalizeKey(String keyName)
    throws OMException {
  String normalizedKeyName;
  if (keyName.startsWith(OM_KEY_PREFIX)) {
    normalizedKeyName = Paths.get(keyName).toUri().normalize().getPath();
  } else {
    normalizedKeyName = Paths.get(OM_KEY_PREFIX, keyName).toUri()
        .normalize().getPath();
  }