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From "Lokesh Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDDS-1128) Create stateful manager class for the pipeline creation scheduling
Date Wed, 27 Feb 2019 17:10:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lokesh Jain updated HDDS-1128:
------------------------------
    Attachment: HDDS-1128.001.patch

> Create stateful manager class for the pipeline creation scheduling
> ------------------------------------------------------------------
>
>                 Key: HDDS-1128
>                 URL: https://issues.apache.org/jira/browse/HDDS-1128
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>            Reporter: Elek, Marton
>            Assignee: Lokesh Jain
>            Priority: Critical
>         Attachments: HDDS-1128.001.patch
>
>
> HDDS-1076 introduced a new static variable in RatisPipelineProvider: Scheduler. It seems
to be a global variable which makes the testing harder.
> [~shashikant] also suggested to remove it:
> {quote}It would be a good idea to move the scheduler Class Utility into some common utility
package so that it can be used in multiple places as and when needed. 
> {quote}
> I agree. And findbug also complains about it:
> {quote}H D ST: Write to static field org.apache.hadoop.hdds.scm.pipeline.RatisPipelineProvider.scheduler
from instance method new org.apache.hadoop.hdds.scm.pipeline.RatisPipelineProvider(NodeManager,
PipelineStateManager, Configuration)  At RatisPipelineProvider.java:[line 56]
> {quote}
> I think we need a new class which includes both the state of RatisPipelineUtils.isPipelineCreatorRunning
and RaitsPipelineProvider.Scheduler. It should have one instance which is available for the
classes which requires it.



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