KeeProMise commented on code in PR #5990:
URL: https://github.com/apache/hadoop/pull/5990#discussion_r1313862686
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hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcClient.java:
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@@ -599,6 +599,9 @@ public Object invokeMethod(
}
LOG.error("Cannot get available namenode for {} {} error: {}",
nsId, rpcAddress, ioe.getMessage());
+ if (this.namenodeResolver != null) {
+ this.namenodeResolver.rotateCache(nsId, namenode,
shouldUseObserver);
Review Comment:
1. Added log
2. Since this is a bug not a feature, most users must need fix the bug by
default, so I don’t think we need to add config here.
I don't think there are a large number of users here who don't need this bug
fixed.
But if you think you need to add it, you can give a config name and I will
add one later, but I personally think it is not necessary.
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