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

["Wei-Chiu Chuang (Jira)" <ji...@apache.org>]

Wei-Chiu Chuang created HDDS-4391:
-------------------------------------

             Summary: UnixPath.toUri() is expensive
                 Key: HDDS-4391
                 URL: https://issues.apache.org/jira/browse/HDDS-4391
             Project: Hadoop Distributed Data Store
          Issue Type: Improvement
          Components: Ozone Manager
    Affects Versions: 1.0.0
            Reporter: Wei-Chiu Chuang
         Attachments: Screen Shot 2020-10-20 at 12.34.52 PM.png

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.

!Screen Shot 2020-10-20 at 12.34.52 PM.png!

OMClientRequest.java
{code: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();
  } {code}



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