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Posted to yarn-issues@hadoop.apache.org by "Bilwa S T (Jira)" <ji...@apache.org> on 2020/06/08 09:48:00 UTC

[jira] [Created] (YARN-10308) Update javadoc and variable names for keytab in yarn services as it supports schemes other than hdfs and local file system

Bilwa S T created YARN-10308:
--------------------------------

             Summary: Update javadoc and variable names for keytab in yarn services as it supports schemes other than hdfs and local file system
                 Key: YARN-10308
                 URL: https://issues.apache.org/jira/browse/YARN-10308
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Bilwa S T
            Assignee: Bilwa S T


1.  Below description should be updated

{code:java}
@ApiModelProperty(value = "The URI of the kerberos keytab. It supports two " +
      "schemes \"hdfs\" and \"file\". If the URI starts with \"hdfs://\" " +
      "scheme, it indicates the path on hdfs where the keytab is stored. The " +
      "keytab will be localized by YARN and made available to AM in its local" +
      " directory. If the URI starts with \"file://\" scheme, it indicates a " +
      "path on the local host where the keytab is presumbaly installed by " +
      "admins upfront. ")
  public String getKeytab() {
    return keytab;
  }
{code}

2. Variables below are still named on hdfs which is confusing
{code:java}
if ("file".equals(keytabURI.getScheme())) {
      LOG.info("Using a keytab from localhost: " + keytabURI);
    } else {
      Path keytabOnhdfs = new Path(keytabURI);
      if (!fileSystem.getFileSystem().exists(keytabOnhdfs)) {
        LOG.warn(service.getName() + "'s keytab (principalName = "
            + principalName + ") doesn't exist at: " + keytabOnhdfs);
        return;
      }
      LocalResource keytabRes = fileSystem.createAmResource(keytabOnhdfs,
          LocalResourceType.FILE);
      localResource.put(String.format(YarnServiceConstants.KEYTAB_LOCATION,
          service.getName()), keytabRes);
      LOG.info("Adding " + service.getName() + "'s keytab for "
          + "localization, uri = " + keytabOnhdfs);
    }
{code}





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