aajisaka commented on a change in pull request #2267:
URL: https://github.com/apache/hadoop/pull/2267#discussion_r482766610
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File path:
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcClient.java
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@@ -582,9 +583,9 @@ private Object invoke(String nsId, int retryCount, final
Method method,
* @return If the exception comes from an unavailable subcluster.
*/
public static boolean isUnavailableException(IOException ioe) {
- if (ioe instanceof ConnectException ||
Review comment:
Now I have no idea.
I copied most of the code from `FederationTestUtils#simulateSlowNameNode`
and created `FederationTestUtils#simulateThrowSocketExceptionNameNode`, but it
did not work as expected.
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