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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1172) Convert *SecretManagers in the RM to services
Date Wed, 18 Dec 2013 19:31:07 GMT

    [ https://issues.apache.org/jira/browse/YARN-1172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852064#comment-13852064

Karthik Kambatla commented on YARN-1172:

The approach definitely looks cleaner than our previous approaches. Thanks [~ozawa] for your
patience with multiple approaches on this. 

# Instead of adding getters in RMSecretManagerService, we should use the ones in RMContext.

# Even though it is spurious, it might be good practice to add super.service* calls in serviceInit,
serviceStart, serviceStop in RMSecretManagerService
# Nit: Very subjective - would be nice to import individual classes than *
import org.apache.hadoop.yarn.exceptions.YarnRuntimeException;
import org.apache.hadoop.yarn.server.resourcemanager.security.*;
# Nit: Would move rmSecretManagerService right next to other "Active" services
  protected AdminService adminService;
  protected RMSecretManagerService rmSecretManagerService;
# ResourceManager still has methods to create SecretManagers. These are no longer used and
should be removed. MockRM and other test cases might be overriding these methods, and need
to be updated to preserve the behavior. For this, we might either have to keep these methods
in the RM and use them in the RMSecretManagerService to create the SecretManagers or move
them entirely to RMSecretManagerService. The latter seems cleaner; it appears the patch adds
one such method to RMSecretManagerService.
# An anonymous class that overrides the method might be more preferable.
    protected RMSecretManagerService createRMSecretManagerService() {
      return new MyRMSecretManagerService(conf, rmContext);

    class MyRMSecretManagerService extends RMSecretManagerService {

      public MyRMSecretManagerService(
          Configuration conf, RMContextImpl rmContext) {
        super(conf, rmContext);

      protected RMDelegationTokenSecretManager
      createRMDelegationTokenSecretManager(Configuration conf,

> Convert *SecretManagers in the RM to services
> ---------------------------------------------
>                 Key: YARN-1172
>                 URL: https://issues.apache.org/jira/browse/YARN-1172
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Karthik Kambatla
>            Assignee: Tsuyoshi OZAWA
>         Attachments: YARN-1172.1.patch, YARN-1172.10.patch, YARN-1172.11.patch, YARN-1172.12.patch,
YARN-1172.13.patch, YARN-1172.2.patch, YARN-1172.3.patch, YARN-1172.4.patch, YARN-1172.5.patch,
YARN-1172.6.patch, YARN-1172.7.patch, YARN-1172.8.patch, YARN-1172.9.patch

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