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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2021/07/15 10:41:30 UTC

[GitHub] [hadoop] jojochuang commented on a change in pull request #3175: HDFS-16111. Add a configuration to RoundRobinVolumeChoosingPolicy to …

jojochuang commented on a change in pull request #3175:
URL: https://github.com/apache/hadoop/pull/3175#discussion_r670347032



##########
File path: hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
##########
@@ -2657,6 +2657,17 @@
   </description>
 </property>
 
+<property>
+  <name>dfs.datanode.round-robin-volume-choosing-policy.additional-available-space</name>
+  <value>0</value>

Review comment:
       Do you have a good default number in mind? IMO, if this configuration potentially saves a big problem (disk full) we should consider picking a reasonably good default number if it's not good big.




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