hfutatzhanghb commented on a change in pull request #3976:
URL: https://github.com/apache/hadoop/pull/3976#discussion_r808664831
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File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/ObserverReadProxyProvider.java
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@@ -342,7 +342,7 @@ private synchronized void initializeMsync() throws
IOException {
if (msynced) {
return; // No need for an msync
}
- getProxyAsClientProtocol(failoverProxy.getProxy().proxy).msync();
Review comment:
hi， @ayushtkn , thanks a lot for replying.
In class ObserverReadProxyProvider, there are two varaibles used to get
NameNode proxy. One is failoverProxy, another is nameNodeProxies. For read
requests, it will use nameNodeProxies to get a proxy of observer namenode, but
for msync rpc, it will use varaible failoverProxy to get an active namenode
proxy.
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