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Posted to hdfs-issues@hadoop.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2018/04/24 20:56:10 UTC
[jira] [Commented] (HDFS-12524) Ozone: Record number of keys
scanned and hinted for getRangeKVs call
[ https://issues.apache.org/jira/browse/HDFS-12524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16451013#comment-16451013 ]
Hudson commented on HDFS-12524:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #14057 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14057/])
HDFS-12524. Ozone: Record number of keys scanned and hinted for (wwei: rev 8f4c56537f2671e3e69c9ae83f25b7a3b31bdac7)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/utils/MetadataKeyFilters.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/utils/RocksDBStore.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/utils/LevelDBStore.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/ozone/TestMetadataStore.java
> Ozone: Record number of keys scanned and hinted for getRangeKVs call
> --------------------------------------------------------------------
>
> Key: HDFS-12524
> URL: https://issues.apache.org/jira/browse/HDFS-12524
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: logging, ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Minor
> Labels: logging, ozoneMerge, performance
> Fix For: HDFS-7240
>
> Attachments: HDFS-12524-HDFS-7240.001.patch
>
>
> Add debug logging to record number of keys scanned and hinted for {{getRangeKVs}} calls, this will be helpful to debug performance issues since {{getRangeKVs}} is often the place where we get the lag.
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