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https://issues.apache.org/jira/browse/HDFS-16283?focusedWorklogId=671590&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-671590
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ASF GitHub Bot logged work on HDFS-16283:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Oct/21 19:09
Start Date: 28/Oct/21 19:09
Worklog Time Spent: 10m
Work Description: goiri commented on a change in pull request #3595:
URL: https://github.com/apache/hadoop/pull/3595#discussion_r738674897
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java
##########
@@ -765,6 +765,14 @@ BatchedDirectoryListing getBatchedListing(
@Idempotent
void renewLease(String clientName) throws IOException;
+ /**
+ * The functionality is the same as renewLease(clientName). This is to
support
+ * router based FileSystem to newLease against a specific target FileSystem
instead
+ * of all the target FileSystems in each call.
+ */
+ @Idempotent
+ void renewLease(String clientName, String nsId) throws IOException;
Review comment:
Changing the client protocol requires more than just a RBF PR.
We should bring this topic up in the mailing list.
The good news is that this is an additional call and not modifying the
existing.
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Issue Time Tracking
-------------------
Worklog Id: (was: 671590)
Time Spent: 0.5h (was: 20m)
> 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: 0.5h
> 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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