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YARN-10308. Update javadoc and variable names for YARN service. 

Contributed by Bilwa S T via eyang
This commit is contained in:
Eric Yang 2020-06-17 09:04:26 -07:00
parent 2bfb22840a
commit 89689c52c3
2 changed files with 16 additions and 14 deletions
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20
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/api/records/KerberosPrincipal.java
View File

@ -71,8 +71,9 @@ public class KerberosPrincipal implements Serializable {
}
/**
* The URI of the kerberos keytab. It supports two schemes \"
* hdfs\" and \"file\". If the URI starts with \"
* The URI of the kerberos keytab. It supports hadoop supported schemes
* like \"hdfs\" \"file\" \"s3\"
* \"viewfs\" etc.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://\"
@ -81,13 +82,14 @@ public class KerberosPrincipal implements Serializable {
*
* @return keytab
**/
@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. ")
@ApiModelProperty(value = "The URI of the kerberos keytab. It supports"
+ " Hadoop supported filesystem types like \"hdfs\", \"file\","
+ " \"viewfs\", \"s3\" etc.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;
}

10
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/client/ServiceClient.java
View File

@ -1478,18 +1478,18 @@ public class ServiceClient extends AppAdminClient implements SliderExitCodes,
if ("file".equals(keytabURI.getScheme())) {
LOG.info("Using a keytab from localhost: " + keytabURI);
} else {
Path keytabOnhdfs = new Path(keytabURI);
if (!fileSystem.getFileSystem().exists(keytabOnhdfs)) {
Path keytabPath = new Path(keytabURI);
if (!fileSystem.getFileSystem().exists(keytabPath)) {
LOG.warn(service.getName() + "'s keytab (principalName = "
+ principalName + ") doesn't exist at: " + keytabOnhdfs);
+ principalName + ") doesn't exist at: " + keytabPath);
return;
}
LocalResource keytabRes = fileSystem.createAmResource(keytabOnhdfs,
LocalResource keytabRes = fileSystem.createAmResource(keytabPath,
LocalResourceType.FILE, LocalResourceVisibility.PRIVATE);
localResource.put(String.format(YarnServiceConstants.KEYTAB_LOCATION,
service.getName()), keytabRes);
LOG.info("Adding " + service.getName() + "'s keytab for "
+ "localization, uri = " + keytabOnhdfs);
+ "localization, uri = " + keytabPath);
}
}