Hexiaoqiao commented on a change in pull request #3271:
URL: https://github.com/apache/hadoop/pull/3271#discussion_r695628043
##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
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@@ -4440,8 +4440,29 @@
<value>3000</value>
<description>
Base time window in ms for DFSClient retries. For each retry attempt,
- this value is extended linearly (e.g. 3000 ms for first attempt and
- first retry, 6000 ms for second retry, 9000 ms for third retry, etc.).
+ this value is extended exponentially based on
dfs.client.retry.window.multiplier.
+ </description>
+</property>
+
+<property>
+ <name>dfs.client.retry.window.multiplier</name>
+ <value>1</value>
+ <description>
+ Multiplier for extending the retry time window. For each retry attempt,
+ the retry time window is extended by multiplying
dfs.client.retry.window.base
+ by this multiplier raised to the power of the current failure count. The
default
+ value of 1 means the window will expand linearly (e.g. 3000 ms for first
attempt
+ and first retry, 6000 ms for second retry, 9000 ms for third retry, etc.).
+ </description>
+</property>
+
+<property>
+ <name>dfs.client.retry.window.max</name>
+ <value>2147483647</value>
Review comment:
The default value for `dfs.client.retry.window.max` is too high here. In
some corner case, it will sleep very long time?
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