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https://issues.apache.org/jira/browse/HDFS-10798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhe Zhang updated HDFS-10798:
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Description: Currently {{FSNamesystem#WRITELOCK_REPORTING_THRESHOLD}} is
set at 1 second. In a busy system a lower overhead might be desired. In other
scenarios, more aggressive reporting might be desired. We should make the
threshold configurable. (was: Currently
{{FSNamesystem#WRITELOCK_REPORTING_THRESHOLD}} is set at 1 second. In a busy
system this might add too much overhead. We should make the threshold
configurable.)
> Make the threshold of reporting FSNamesystem lock contention configurable
> -------------------------------------------------------------------------
>
> Key: HDFS-10798
> URL: https://issues.apache.org/jira/browse/HDFS-10798
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: logging, namenode
> Reporter: Zhe Zhang
> Assignee: Erik Krogen
> Labels: newbie
> Attachments: HDFS-10789.001.patch
>
>
> Currently {{FSNamesystem#WRITELOCK_REPORTING_THRESHOLD}} is set at 1 second.
> In a busy system a lower overhead might be desired. In other scenarios, more
> aggressive reporting might be desired. We should make the threshold
> configurable.
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