simbadzina commented on code in PR #4127:
URL: https://github.com/apache/hadoop/pull/4127#discussion_r968998635
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hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RBFConfigKeys.java:
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@@ -191,6 +191,14 @@ public class RBFConfigKeys extends
CommonConfigurationKeysPublic {
FEDERATION_STORE_PREFIX + "enable";
public static final boolean DFS_ROUTER_STORE_ENABLE_DEFAULT = true;
+ public static final String DFS_ROUTER_OBSERVER_READ_ENABLE =
+ FEDERATION_ROUTER_PREFIX + "observer.read.enable";
+ public static final boolean DFS_ROUTER_OBSERVER_READ_ENABLE_DEFAULT = false;
+
+ public static final String DFS_ROUTER_OBSERVER_AUTO_MSYNC_PERIOD =
+ FEDERATION_ROUTER_PREFIX + "observer.auto-msync-period";
+ public static final long DFS_ROUTER_OBSERVER_AUTO_MSYNC_PERIOD_DEFAULT = 0;
Review Comment:
I've now removed the auto-sync. It didn't seem to add any value.
The router's global state is constantly being updated by calls to the active
namenode.
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