goiri commented on a change in pull request #1480: HDFS-14857 FS operations
fail in HA mode: DataNode fails to connect to NameNode
URL: https://github.com/apache/hadoop/pull/1480#discussion_r331732619
##########
File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/ConfiguredFailoverProxyProvider.java
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@@ -93,4 +92,34 @@ public synchronized void close() throws IOException {
public boolean useLogicalURI() {
return true;
}
+
+ /**
+ * Resets the NameNode proxy address in case it's stale
+ */
+ protected void resetProxyAddress(List<NNProxyInfo<T>> proxies, int index) {
+ try {
+ stopProxy(proxies.get(index).proxy);
+ InetSocketAddress oldAddress = proxies.get(index).getAddress();
+ InetSocketAddress address = NetUtils.createSocketAddr(
+ oldAddress.getHostName() + ":" + oldAddress.getPort());
+ LOG.debug("oldAddress {}, newAddress {}", oldAddress, address);
+ proxies.set(index, new NNProxyInfo<T>(address));
+ } catch (Exception e) {
+ throw new RuntimeException("Could not refresh NN address", e);
Review comment:
In particular this runtime exception. Can we test it?
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