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https://issues.apache.org/jira/browse/HDFS-16283?focusedWorklogId=672087&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-672087
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ASF GitHub Bot logged work on HDFS-16283:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 29/Oct/21 17:41
Start Date: 29/Oct/21 17:41
Worklog Time Spent: 10m
Work Description: ayushtkn commented on pull request #3595:
URL: https://github.com/apache/hadoop/pull/3595#issuecomment-954926793
A quick look on the PR & the discussions so far. I would also prefer we
discuss this somewhere first and have a proper design explaining the details,
pros and cons of other alternatives, if considered and then move on to the
coding bit. A bunch of questions floating in my mind as I went through the
code, So, should be better if we have a proposal before hand.
@aihuaxu not denying anything proposed here, may be as you said this might
be the best possible way to do things, but if you put up a design for
discussion, it would be easier for others to understand as well.
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Issue Time Tracking
-------------------
Worklog Id: (was: 672087)
Time Spent: 1h 20m (was: 1h 10m)
> RBF: improve renewLease() to call only a specific NameNode rather than make
> fan-out calls
> -----------------------------------------------------------------------------------------
>
> Key: HDFS-16283
> URL: https://issues.apache.org/jira/browse/HDFS-16283
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Currently renewLease() against a router will make fan-out to all the
> NameNodes. Since renewLease() call is so frequent and if one of the NameNodes
> are slow, then eventually the router queues are blocked by all renewLease()
> and cause router degradation.
> We will make a change in the client side to keep track of NameNode Id in
> additional to current fileId so routers understand which NameNodes the client
> is renewing lease against.
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