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https://issues.apache.org/jira/browse/HDFS-14771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16923196#comment-16923196
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He Xiaoqiao commented on HDFS-14771:
------------------------------------

Check failed unit test, I don't think they are related with this changes.
1. TestQuota failed because parameter check failed when input '3K' for 
`setQuota` in branch-2 which does not support traditional binary prefix. The 
root cause is different check mode between trunk and branch-2 and this issue 
brings from HDFS-14633. I would like to resolve it later.  
{code:java}
@Test
publicvoidtestClrQuotaOnRoot()throwsException{
  longorignalQuota=dfs.getQuotaUsage(newPath("/")).getQuota();
  DFSAdminadmin=newDFSAdmin(conf);
  String[]args;
  args=newString[]{"-setQuota","3K","/"};
  runCommand(admin,args,false);
  assertEquals(3*1024,dfs.getQuotaUsage(newPath("/")).getQuota());
  args=newString[]{"-clrQuota","/"};
  runCommand(admin,args,false);
  assertEquals(orignalQuota,dfs.getQuotaUsage(newPath("/")).getQuota());
}
{code}
2.TestDirectoryScanner seems timeout always in branch-2. It may be related with 
HDFS-14303.
3.TestJournalNodeRespectsBindHostKeys run pass at local.

> Backport HDFS-14617 to branch-2 (Improve fsimage load time by writing 
> sub-sections to the fsimage index)
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-14771
>                 URL: https://issues.apache.org/jira/browse/HDFS-14771
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 2.10.0
>            Reporter: He Xiaoqiao
>            Assignee: He Xiaoqiao
>            Priority: Major
>              Labels: release-blocker
>         Attachments: HDFS-14771.branch-2.001.patch, 
> HDFS-14771.branch-2.002.patch, HDFS-14771.branch-2.003.patch
>
>
> This JIRA aims to backport HDFS-14617 to branch-2: fsimage load time by 
> writing sub-sections to the fsimage index.



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