[
https://issues.apache.org/jira/browse/HDFS-81?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
dhruba borthakur resolved HDFS-81.
----------------------------------
Resolution: Won't Fix
This problem occurs only in old releases and is not present in trunk.
> Impact in NameNode scalability because heartbeat processing acquires the
> global lock
> ------------------------------------------------------------------------------------
>
> Key: HDFS-81
> URL: https://issues.apache.org/jira/browse/HDFS-81
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: dhruba borthakur
>
> The heartbeat processing code recently got rearranged via HADOOP-3254. This
> caused the NameNode heartbeat processing code to acquire the FSNamesystem
> global lock for every heartbeat processing. This could impact scalability of
> the namenode.
> This problem is present in 0.17.x and 0.18.x release only. It is not present
> in 0.16.x and on trunk.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
