You are viewing a plain text version of this content. The canonical link for it is here.

Posted to hdfs-issues@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2015/05/01 04:43:06 UTC

[jira] [Resolved] (HDFS-8308) Erasure Coding: NameNode may get blocked in waitForLoadingFSImage() when loading editlog

     [ https://issues.apache.org/jira/browse/HDFS-8308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jing Zhao resolved HDFS-8308.
-----------------------------
       Resolution: Fixed
    Fix Version/s: HDFS-7285

Thanks for the review, Nicholas! I've committed this.

> Erasure Coding: NameNode may get blocked in waitForLoadingFSImage() when loading editlog
> ----------------------------------------------------------------------------------------
>
>                 Key: HDFS-8308
>                 URL: https://issues.apache.org/jira/browse/HDFS-8308
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>             Fix For: HDFS-7285
>
>         Attachments: HDFS-8308.000.patch
>
>
> 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)