hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vrushali C (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-6094) Update the coprocessor to be a dynamically loaded one
Date Sat, 14 Jan 2017 01:01:15 GMT

     [ https://issues.apache.org/jira/browse/YARN-6094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vrushali C updated YARN-6094:
    Attachment: YARN-6094.001.patch

Uploading patch v001. 

The changes that the patch introduces are:

- documentation updates to reflect that this is now a dynamically loaded table level coprocessor
(hence no restart of Region servers needed, nor any additions of coprocessor class name in

- in FlowRunCoprocessor, the check for isFlowRunRegion is no longer needed since this coprocessor
is only enabled for one table - the flow run table.

- Yarn config now has a new parameter that helps set the location on hdfs for the coprocessor

- unit test changes. Notable change is for createSchema function that has been added to DataGeneratorForTest.
This function now creates the timeline service schema for the unit tests. It copies the jar
to hdfs on the minicluster during the test execution and then creates the tables.
- Some of the other changes in unit test file  DataGeneratorForTest are for fixing the checkstyle
warning of function length > 150.

> Update the coprocessor to be a dynamically loaded one
> -----------------------------------------------------
>                 Key: YARN-6094
>                 URL: https://issues.apache.org/jira/browse/YARN-6094
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Vrushali C
>            Assignee: Vrushali C
>         Attachments: YARN-6094.001.patch
> The timeline service v2 code base on yarn now uses hbase 1.2.4 after YARN-5976. 
> With this version of hbase, system classes (starting with org.apache.hadoop) can be loaded
as table level coprocessors. Hence we should update the timeline service coprocessor to be
a dynamically loaded one instead of static loading. 
> This involves code changes as well as documentation updates for deployment.

This message was sent by Atlassian JIRA

To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org

View raw message