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

["Jing Zhao (JIRA)" <ji...@apache.org>]

Jing Zhao created HDFS-8308:
-------------------------------

             Summary: 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


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)