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Posted to hdfs-issues@hadoop.apache.org by "Uma Maheswara Rao G (JIRA)" <ji...@apache.org> on 2017/01/31 17:52:52 UTC
[jira] (HDFS-11243) [SPS]: Add a protocol command from NN to DN for
dropping the SPS work and queues
[ https://issues.apache.org/jira/browse/HDFS-11243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15847211#comment-15847211 ]
Uma Maheswara Rao G commented on HDFS-11243:
--------------------------------------------
{quote}
./hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/DatanodeProtocol.java:81: final static int DNA_DROP_SPS_WORK_COMMAND = 13;
{quote}
Intentionally did not fix this checksyle warning because I declared the constants same as other constants in the file. So, I thought need not fix this.
> [SPS]: Add a protocol command from NN to DN for dropping the SPS work and queues
> ---------------------------------------------------------------------------------
>
> Key: HDFS-11243
> URL: https://issues.apache.org/jira/browse/HDFS-11243
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Attachments: HDFS-11243-HDFS-10285-00.patch, HDFS-11243-HDFS-10285-01.patch, HDFS-11243-HDFS-10285-02.patch
>
>
> This JIRA is for adding a protocol command from Namenode to Datanode for dropping SPS work. and Also for dropping in progress queues.
> Use case is: when admin deactivated SPS at NN, then internally NN should issue a command to DNs for dropping in progress queues as well. This command can be packed via heartbeat.
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