[HDFS-14968] Add ability to know datanode staleness - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.3.0, 3.1.4, 3.2.2, 2.10.1
Component/s: datanode, logging, namenode
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Description

There is no way to know whether a DataNode was marked stale or no longer stale by the NameNode.

It will be good to have the option to enable logging the DataNode staleness to figure out if the staleness was the reason behind remote reads. Therefore, analyze performance and decision making of the local vs remote reads.

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HDFS-14968.003.patch
14/Jan/20 19:54
10 kB
Ahmed Hussein
HDFS-14968.002.patch
14/Jan/20 15:59
9 kB
Ahmed Hussein
HDFS-14968.001.patch
13/Jan/20 21:07
9 kB
Ahmed Hussein

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Assignee:: Ahmed Hussein

Reporter:: Ahmed Hussein

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Dates

Created:: 07/Nov/19 19:35

Updated:: 01/Apr/20 21:04

Resolved:: 22/Jan/20 15:32