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https://issues.apache.org/jira/browse/HDFS-11195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15724096#comment-15724096
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Yuanbo Liu commented on HDFS-11195:
-----------------------------------
I have reproduced this issue in trunk branch, but still doesn't come up with a
good solution to solve this problem.
The related code is here {{WebHdfsHandler#onAppend}}:
{code}
private void onAppend(ChannelHandlerContext ctx) throws IOException {
....
resp = new DefaultHttpResponse(HTTP_1_1, OK);
resp.headers().set(CONTENT_LENGTH, 0);
ctx.pipeline().replace(this, HdfsWriter.class.getSimpleName(),
new HdfsWriter(dfsClient, out, resp));
}
{code}
{{HdfsWriter}} doesn't write successfully, but the response has been set to
200(OK).
> When appending files by webhdfs rest api fails, it returns 200
> --------------------------------------------------------------
>
> Key: HDFS-11195
> URL: https://issues.apache.org/jira/browse/HDFS-11195
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Yuanbo Liu
> Assignee: Yuanbo Liu
>
> Suppose that there is a Hadoop cluster contains only one datanode, and
> dfs.replication=3. Run:
> {code}
> curl -i -X POST -T <LOCAL_FILE>
> "http://<DATANODE>:<PORT>/webhdfs/v1/<PATH>?op=APPEND"
> {code}
> it returns 200, even though append operation fails.
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