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Posted to issues@ozone.apache.org by "Prashant Pogde (Jira)" <ji...@apache.org> on 2021/01/29 17:28:13 UTC
[jira] [Updated] (HDDS-3214) Unhealthy datanodes repeatedly
participate in pipeline creation
[ https://issues.apache.org/jira/browse/HDDS-3214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Prashant Pogde updated HDDS-3214:
---------------------------------
Target Version/s: 1.2.0
I am managing the 1.1.0 release and we currently have more than 600 issues targeted for 1.1.0. I am moving the target field to 1.2.0.
If you are actively working on this jira and believe this should be targeted to 1.1.0 release, Please change the target field back to 1.1.0 before Feb 05, 2021.
> Unhealthy datanodes repeatedly participate in pipeline creation
> ---------------------------------------------------------------
>
> Key: HDDS-3214
> URL: https://issues.apache.org/jira/browse/HDDS-3214
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: SCM
> Reporter: Nilotpal Nandi
> Assignee: Prashant Pogde
> Priority: Blocker
> Labels: TriagePending, fault_injection
>
> steps taken :
> 1) Mounted noise injection FUSE on all datanodes
> 2) Selected 1 datanode from each open pipeline (factor=3)
> 3) Injected WRITE FAILURE noise with error code - ENOENT on "hdds.datanode.dir" path of list of datanodes selected in step 2)
> 4) start PUT key operation of size 32 MB.
>
> Observation :
> ----------------
> # Commit failed, pipelines were moved to exclusion list.
> # Client retries , new pipeline is created with same set of datanodes. Container creation fails as WRITE FAILURE injection present.
> # Pipeline is closed and the process is repeated for "ozone.client.max.retries" retries.
> Everytime, same set of datanodes are selected for pipeline creation which include 1 unhealthy datanode.
> Expectation - pipeline should have been created by selecting 3 healthy datanodes available.
>
> cc - [~ljain]
>
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