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https://issues.apache.org/jira/browse/HDFS-16730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17580442#comment-17580442
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Wei-Chiu Chuang commented on HDFS-16730:
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Perfect. Thanks.
> Update the doc that append to EC files is supported
> ---------------------------------------------------
>
> Key: HDFS-16730
> URL: https://issues.apache.org/jira/browse/HDFS-16730
> Project: Hadoop HDFS
> Issue Type: Task
> Reporter: Wei-Chiu Chuang
> Assignee: groot
> Priority: Major
>
> Our doc has a statement regarding EC limitations:
> https://hadoop.apache.org/docs/r3.3.0/hadoop-project-dist/hadoop-hdfs/HDFSErasureCoding.html#Limitations
> {noformat}
> append() and truncate() on an erasure coded file will throw IOException.
> {noformat}
> In fact, HDFS-7663 added the support since Hadoop 3.3.0. The caveat is that
> it supports "Append to a closed striped file, with NEW_BLOCK flag enabled"
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