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https://issues.apache.org/jira/browse/HDFS-17273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17794528#comment-17794528
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ASF GitHub Bot commented on HDFS-17273:
---------------------------------------
hfutatzhanghb commented on code in PR #6321:
URL: https://github.com/apache/hadoop/pull/6321#discussion_r1419950588
##########
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java:
##########
@@ -934,14 +936,14 @@ void waitForAckedSeqno(long seqno) throws IOException {
}
try {
dataQueue.wait(1000); // when we receive an ack, we notify on
- long duration = Time.monotonicNow() - begin;
- if (duration > writeTimeout) {
+ long duration = Time.monotonicNowNanos() - begin;
Review Comment:
> Get it , thanks @hfutatzhanghb comment.
>
> ```
> if (TimeUnit.NANOSECONDS.toMillis(duration) > writeTimeout) {
> LOG.error("No ack received, took {}ms (threshold={}ms). "
> + "File being written: {}, block: {}, "
> + "Write pipeline datanodes: {}.",
> TimeUnit.NANOSECONDS.toMillis(duration), writeTimeout, src, block,
nodes);
> throw new InterruptedIOException("No ack received after " +
> TimeUnit.NANOSECONDS.toSeconds(duration) + "s and a timeout of " +
> TimeUnit.MILLISECONDS.toSeconds(writeTimeout) + "s");
> }
> ```
>
> how about it?
@hfutatzhanghb Sir, thanks a lot for your reviewing, you are welcome. This
part i did not use nanosecond as unit because i think printing error logs using
nanosecond is not very intuitive, So I keep it the way it was. As this PR's
title described, its goal is for better debugging. Of course，it can be
nanosecond, we can here other peoples' thoughts. Thanks again.
##########
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DataStreamer.java:
##########
@@ -934,14 +936,14 @@ void waitForAckedSeqno(long seqno) throws IOException {
}
try {
dataQueue.wait(1000); // when we receive an ack, we notify on
- long duration = Time.monotonicNow() - begin;
- if (duration > writeTimeout) {
+ long duration = Time.monotonicNowNanos() - begin;
Review Comment:
> Get it , thanks @hfutatzhanghb comment.
>
> ```
> if (TimeUnit.NANOSECONDS.toMillis(duration) > writeTimeout) {
> LOG.error("No ack received, took {}ms (threshold={}ms). "
> + "File being written: {}, block: {}, "
> + "Write pipeline datanodes: {}.",
> TimeUnit.NANOSECONDS.toMillis(duration), writeTimeout, src, block,
nodes);
> throw new InterruptedIOException("No ack received after " +
> TimeUnit.NANOSECONDS.toSeconds(duration) + "s and a timeout of " +
> TimeUnit.MILLISECONDS.toSeconds(writeTimeout) + "s");
> }
> ```
>
> how about it?
@hfutatzhanghb Sir, thanks a lot for your reviewing, you are welcome. This
part i did not use nanosecond as unit because i think printing error logs using
nanosecond is not very intuitive, So I keep it the way it was. As this PR's
title described, its goal is for better debugging. Of course，it can be
nanosecond, we can here other peoples' thoughts. Thanks again.
> Change the way of computing some local variables duration for better debugging
> ------------------------------------------------------------------------------
>
> Key: HDFS-17273
> URL: https://issues.apache.org/jira/browse/HDFS-17273
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Minor
> Labels: pull-request-available
>
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