ChenSammi commented on a change in pull request #1194: HDDS-1879. Support
multiple excluded scopes when choosing datanodes in NetworkTopology
URL: https://github.com/apache/hadoop/pull/1194#discussion_r322640773
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File path:
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/net/InnerNodeImpl.java
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@@ -313,12 +314,12 @@ public Node getLeaf(int leafIndex) {
* means picking the 3th available node, which is n5.
Review comment:
Right, currently no node can be selected given all the input parameters. I
change the exclude scope from /dc2 to /dc2/rack2. Then the chosen node is
/dc1/rack2/n5.
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