ChenSammi commented on a change in pull request #931: HDDS-1586. Allow Ozone
RPC client to read with topology awareness.
URL: https://github.com/apache/hadoop/pull/931#discussion_r293335822
##########
File path:
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/ScmConfigKeys.java
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@@ -363,6 +363,10 @@
"ozone.scm.network.topology.schema.file";
public static final String OZONE_SCM_NETWORK_TOPOLOGY_SCHEMA_FILE_DEFAULT =
"network-topology-default.xml";
+ public static final String DFS_NETWORK_TOPOLOGY_AWARE_READ_ENABLED =
+ "dfs.network.topology.aware.read.enable";
+ public static final String DFS_NETWORK_TOPOLOGY_AWARE_READ_ENABLED_DEFAULT =
+ "true";
Review comment:
Currently, "dfs.network.topology.aware.read.enable" controls the client
whether to read from the closest data node or not. The location sort process
always happens on the om/scm side. Do you suggest to make this property a
server side configuration?
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