KeeProMise commented on code in PR #6208:
URL: https://github.com/apache/hadoop/pull/6208#discussion_r1395175336
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcClient.java:
##########
@@ -772,13 +780,22 @@ public static boolean isUnavailableException(IOException
ioe) {
* Check if the cluster of given nameservice id is available.
*
* @param nsId nameservice ID.
+ * @param namenode namenode context.
+ * @param listObserverFirst Observer read case, observer NN will be ranked
first.
* @return true if the cluster with given nameservice id is available.
* @throws IOException if error occurs.
*/
- private boolean isClusterUnAvailable(String nsId) throws IOException {
+ private boolean isClusterUnAvailable(
+ String nsId, FederationNamenodeContext namenode,
+ boolean listObserverFirst) throws IOException {
+ // Use observer and the namenode that causes the exception is an observer,
+ // false is returned so that the observer can be marked as unavailable,so
other observers
+ // or active namenode which is standby in the cache of the router can be
retried.
Review Comment:
Thanks for your advice.
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/MiniRouterDFSCluster.java:
##########
@@ -253,6 +253,19 @@ public FileSystem
getFileSystemWithObserverReadProxyProvider() throws IOExceptio
return DistributedFileSystem.get(observerReadConf);
}
+ public FileSystem getFileSystemWithConfiguredFailoverProxyProvider()
throws IOException {
+ conf.set(DFS_NAMESERVICES,
+ conf.get(DFS_NAMESERVICES)+ ",router-service");
+ conf.set(DFS_HA_NAMENODES_KEY_PREFIX + ".router-service", "router1");
+ conf.set(DFS_NAMENODE_RPC_ADDRESS_KEY+ ".router-service.router1",
+ getFileSystemURI().toString());
+ conf.set(HdfsClientConfigKeys.Failover.PROXY_PROVIDER_KEY_PREFIX
+ + "." + "router-service",
ConfiguredFailoverProxyProvider.class.getName());
+ DistributedFileSystem.setDefaultUri(conf, "hdfs://router-service");
+
+ return DistributedFileSystem.get(conf);
+ }
Review Comment:
done.
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