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https://issues.apache.org/jira/browse/HDFS-7663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16779586#comment-16779586
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Vinayakumar B commented on HDFS-7663:
-------------------------------------
Thanks [~ayushtkn] for the update on the patch.
One more minor change.
{code:java}
LocatedBlock ret = null;
if (!newBlock) {
+ if (file.isStriped()) {
+ throw new UnsupportedActionException(
+ "Append on EC file without new block is not supported.");
+ }
{code}
Instead of {{UnsupportedActionException}}, throw
{{UnsupportedOperationException}} as before.
+1, once this change is done.
> Erasure Coding: Append on striped file
> --------------------------------------
>
> Key: HDFS-7663
> URL: https://issues.apache.org/jira/browse/HDFS-7663
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: 3.0.0-alpha1
> Reporter: Jing Zhao
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-7663-02.patch, HDFS-7663-03.patch,
> HDFS-7663-04.patch, HDFS-7663-05.patch, HDFS-7663.00.txt, HDFS-7663.01.patch
>
>
> Append should be easy if we have variable length block support from
> HDFS-3689, i.e., the new data will be appended to a new block. We need to
> revisit whether and how to support appending data to the original last block.
> 1. Append to a closed striped file, with NEW_BLOCK flag enabled (this)
> 2. Append to a under-construction striped file, with NEW_BLOCK flag enabled
> (HDFS-9173)
> 3. Append to a striped file, by appending to last block group (follow-on)
> This jira attempts to implement the #1, and also track #2, #3.
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