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https://issues.apache.org/jira/browse/YARN-10308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17129645#comment-17129645
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Eric Yang commented on YARN-10308:
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{quote}It supports all filesystems like "hdfs", "file", "viewfs", "s3"
etc.{quote}
"All filesystems" maybe claiming more than implementations that support this.
Have you tested with viewfs, httpfs, and s3? How about changing it to Hadoop
supported filesystem types. e.g. hdfs? This will bring expectation closer to
reality.
> Update javadoc and variable names for keytab in yarn services as it supports
> filesystems 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
> Priority: Minor
> Attachments: YARN-10308.001.patch
>
>
> 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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