[
https://issues.apache.org/jira/browse/HDFS-15215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17066222#comment-17066222
]
Hudson commented on HDFS-15215:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #18083 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/18083/])
HDFS-15215. The Timestamp for longest write/read lock held log is wrong
(github: rev d353b30baf6da5b70685cf837cf7095636f345e1)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSNamesystemLock.java
* (edit)
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/FakeTimer.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystemLock.java
> The Timestamp for longest write/read lock held log is wrong
> -----------------------------------------------------------
>
> Key: HDFS-15215
> URL: https://issues.apache.org/jira/browse/HDFS-15215
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Toshihiro Suzuki
> Assignee: Toshihiro Suzuki
> Priority: Major
> Fix For: 3.3.0
>
>
> I found the Timestamp for longest write/read lock held log is wrong in trunk:
> {code}
> 2020-03-10 16:01:26,585 [main] INFO namenode.FSNamesystem
> (FSNamesystemLock.java:writeUnlock(281)) - Number of suppressed
> write-lock reports: 0
> Longest write-lock held at 1970-01-03 07:07:40,841+0900 for 3ms via
> java.lang.Thread.getStackTrace(Thread.java:1559)
> ...
> {code}
> Looking at the code, it looks like the timestamp comes from System.nanoTime()
> that returns the current value of the running Java Virtual Machine's
> high-resolution time source and this method can only be used to measure
> elapsed time:
> https://docs.oracle.com/javase/8/docs/api/java/lang/System.html#nanoTime--
> We need to make the timestamp from System.currentTimeMillis().
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
