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From "Lukas Majercak (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12422) Replace DataNode in Pipeline for Last Packet
Date Mon, 11 Sep 2017 21:25:07 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lukas Majercak updated HDFS-12422:
----------------------------------
    Description: 
# Create a file with replicationFactor = 4, minReplicas = 2
# Fail waiting for the last packet, followed by 2 exceptions when recovering the leftover
pipeline
# The leftover pipeline will only have one DN and NN will never close such block, resulting
in failure to write

The block will stay there forever, unable to be replicated, ultimately going missing.

  was:
# Create a file with replicationFactor = 4, minReplicas = 2
# Fail waiting for the last packet, followed by 2 exceptions when recovering the leftover
pipeline
# The leftover pipeline will only have one DN and NN will never
    close such block, resulting in failure to write


> Replace DataNode in Pipeline for Last Packet
> --------------------------------------------
>
>                 Key: HDFS-12422
>                 URL: https://issues.apache.org/jira/browse/HDFS-12422
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs, hdfs-client
>            Reporter: Lukas Majercak
>            Assignee: Lukas Majercak
>              Labels: hdfs
>         Attachments: HDFS-12422.001.patch
>
>
> # Create a file with replicationFactor = 4, minReplicas = 2
> # Fail waiting for the last packet, followed by 2 exceptions when recovering the leftover
pipeline
> # The leftover pipeline will only have one DN and NN will never close such block, resulting
in failure to write
> The block will stay there forever, unable to be replicated, ultimately going missing.



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