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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/07/17 15:56:00 UTC
[jira] [Work logged] (HDDS-1798) Propagate failure in
writeStateMachineData to Ratis
[ https://issues.apache.org/jira/browse/HDDS-1798?focusedWorklogId=278280&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-278280 ]
ASF GitHub Bot logged work on HDDS-1798:
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Author: ASF GitHub Bot
Created on: 17/Jul/19 15:55
Start Date: 17/Jul/19 15:55
Worklog Time Spent: 10m
Work Description: supratimdeka commented on pull request #1113: HDDS-1798. Propagate failure in writeStateMachineData to Ratis. Contributed by Supratim Deka
URL: https://github.com/apache/hadoop/pull/1113
https://issues.apache.org/jira/browse/HDDS-1798
unit test is pending. Will add the infra required for testing this change as part of https://issues.apache.org/jira/browse/HDDS-1818
writeStateMachineData() currently returns a future to Ratis. The scope of this jira is to signal any errors or failures encountered as part of the operation - WriteChunk / handleWriteChunk() to Ratis via this future. As of now, the future does not track failures.
This change is required to complete the failure handling done in HDDS-1603.
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Issue Time Tracking
-------------------
Worklog Id: (was: 278280)
Time Spent: 10m
Remaining Estimate: 0h
> Propagate failure in writeStateMachineData to Ratis
> ---------------------------------------------------
>
> Key: HDDS-1798
> URL: https://issues.apache.org/jira/browse/HDDS-1798
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: Ozone Datanode
> Reporter: Supratim Deka
> Assignee: Supratim Deka
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently,
> writeStateMachineData() returns a future to Ratis. This future does not track any errors or failures encountered as part of the operation - WriteChunk / handleWriteChunk(). The error is propagated back to the client in the form of an error code embedded inside writeChunkResponseProto. But the error goes undetected and unhandled in the Ratis server. The future handed back to Ratis is always completed with success.
> The goal is to detect any errors in writeStateMachineData in Ratis and treat is as a failure of the Ratis log. Handling for which is already implemented in HDDS-1603.
>
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