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https://issues.apache.org/jira/browse/HDFS-3689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292877#comment-14292877
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Tsz Wo Nicholas Sze commented on HDFS-3689:
-------------------------------------------
- Add an if-statement to check targetRepl - src.getBlockReplication() != 0
before adding it to delta since src.computeFileSize() is a little bit expensive.
- The if-condition below should check if delta <= 0 and the comment "if delta
is <0" should be updated to "if delta is <= 0".
{code}
+ if (!fsd.getFSNamesystem().isImageLoaded() || fsd.shouldSkipQuotaChecks())
{
+ // Do not check quota if delta is <0 or editlog is still being processed
+ return;
{code}
> Add support for variable length block
> -------------------------------------
>
> Key: HDFS-3689
> URL: https://issues.apache.org/jira/browse/HDFS-3689
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, hdfs-client, namenode
> Affects Versions: 3.0.0
> Reporter: Suresh Srinivas
> Assignee: Jing Zhao
> Attachments: HDFS-3689.000.patch, HDFS-3689.001.patch,
> HDFS-3689.002.patch, HDFS-3689.003.patch, HDFS-3689.003.patch,
> HDFS-3689.004.patch, HDFS-3689.005.patch, HDFS-3689.006.patch,
> HDFS-3689.007.patch, HDFS-3689.008.patch, HDFS-3689.008.patch,
> HDFS-3689.009.patch, HDFS-3689.009.patch, editsStored
>
>
> Currently HDFS supports fixed length blocks. Supporting variable length block
> will allow new use cases and features to be built on top of HDFS.
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