[
https://issues.apache.org/jira/browse/HDFS-13050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16342662#comment-16342662
]
Rakesh R commented on HDFS-13050:
---------------------------------
Thanks [~surendrasingh] for the patch. Adding few comments.
Please create
org.apache.hadoop.hdfs.server.sps.ExternalStoragePolicySatsifier.java class and
this can be used in the scripts.
{{ExternalStoragePolicySatsifier#main() method steps should be like,}}
step-1) Successful nnc establishment with retries
step-2) Make sure internal SPS is not running, if running then throw
exception. Please refer,
{code}
boolean spsRunning;
try {
spsRunning = nnc.getDistributedFileSystem().getClient()
.isStoragePolicySatisfierRunning();
} catch (RemoteException e) {
IOException cause = e.unwrapRemoteException();
if (cause instanceof StandbyException) {
System.err.println("Skip Standby Namenode. " + nnc.toString());
continue;
}
throw e;
}
if (spsRunning) {
System.err.println("Startup failed due to StoragePolicySatisfier"
+ " running inside Namenode. Exiting with status "
+ ExitStatus.SKIPPED_DUE_TO_SPS + "... ");
return ExitStatus.SKIPPED_DUE_TO_SPS.getExitCode();
}
{code}
step-3) Pass this nn to the external context and other services.
> [SPS] : Create start/stop script to start external SPS process.
> ---------------------------------------------------------------
>
> Key: HDFS-13050
> URL: https://issues.apache.org/jira/browse/HDFS-13050
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: HDFS-10285
> Reporter: Surendra Singh Lilhore
> Assignee: Surendra Singh Lilhore
> Priority: Blocker
> Attachments: HDFS-13050-HDFS-10285-01.patch,
> HDFS-13050-HDFS-10285-02.patch
>
>
> As part of this Jira we will main class for SPS and modify the
> \{{hadoop-daemon.sh}} to start external SPS.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
