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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Deleted] (HDFS-10062) CLONE - Erasure Coding: NameNode may get blocked in waitForLoadingFSImage() when loading editlog
Date Tue, 15 Mar 2016 09:42:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10062?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinayakumar B deleted HDFS-10062:
---------------------------------


> CLONE - Erasure Coding: NameNode may get blocked in waitForLoadingFSImage() when loading
editlog
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-10062
>                 URL: https://issues.apache.org/jira/browse/HDFS-10062
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: dragon
>            Assignee: Jing Zhao
>             Fix For: HDFS-7285
>
>
> If the editlog contains a transaction for creating an EC file, the NN will get blocked
in {{waitForLoadingFSImage}} because the following call path:
> FSDirectory#addFileForEditLog --> FSDirectory#isInECZone --> FSDirectory#getECSchema
--> ECZoneManager#getECSchema --> ECZoneManager#getECZoneInfo --> FSNamesystem#getSchema
--> waitForLoadingFSImage
> This jira plans to fix this bug and also do some code cleanup.



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