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Posted to hdfs-issues@hadoop.apache.org by "Bharat Viswanadham (JIRA)" <ji...@apache.org> on 2019/07/26 21:41:00 UTC
[jira] [Updated] (HDDS-1856) Make changes required for Non-HA to
use new HA code in OM.
[ https://issues.apache.org/jira/browse/HDDS-1856?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Bharat Viswanadham updated HDDS-1856:
-------------------------------------
Summary: Make changes required for Non-HA to use new HA code in OM. (was: Merge HA and Non-HA code in OM)
> Make changes required for Non-HA to use new HA code in OM.
> ----------------------------------------------------------
>
> Key: HDDS-1856
> URL: https://issues.apache.org/jira/browse/HDDS-1856
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In this Jira following things will be implemented:
> # Make the necessary changes for non-HA code path to use Cache and DoubleBuffer.
> ## When adding to double buffer, return future. This future will be used in non-HA path to wait for this, and when it is completed return response to the client.
> ## Add to double-buffer will happen inside validateAndUpdateCache. In this way, in non-HA, when multiple rpc handler threads are calling preExecute and validateAndUpdateCache, the order inserted in to double buffer will happen in the order requests are received.
>
> In this Jira, we shall not convert non-ha code path to use this, as security and acl work is not completed to use this new model.
>
>
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