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https://issues.apache.org/jira/browse/HDDS-1175?focusedWorklogId=208007&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-208007
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ASF GitHub Bot logged work on HDDS-1175:
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Author: ASF GitHub Bot
Created on: 05/Mar/19 19:43
Start Date: 05/Mar/19 19:43
Worklog Time Spent: 10m
Work Description: hanishakoneru commented on pull request #557:
HDDS-1175. Serve read requests directly from RocksDB.
URL: https://github.com/apache/hadoop/pull/557
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Issue Time Tracking
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Worklog Id: (was: 208007)
Time Spent: 10m
Remaining Estimate: 0h
> Serve read requests directly from RocksDB
> -----------------------------------------
>
> Key: HDDS-1175
> URL: https://issues.apache.org/jira/browse/HDDS-1175
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Major
> Labels: pull-request-available
> Attachments: HDDS-1175.001.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We can directly server read requests from the OM's RocksDB instead of going
> through the Ratis server. OM should first check its role and only if it is
> the leader can it server read requests.
> There can be a scenario where an OM can lose its Leader status but not know
> about the new election in the ring. This OM could server stale reads for the
> duration of the heartbeat timeout but this should be acceptable (similar to
> how Standby Namenode could possibly server stale reads till it figures out
> the new status).
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