KeeProMise commented on code in PR #5991:
URL: https://github.com/apache/hadoop/pull/5991#discussion_r1308085412
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/resolver/MembershipNamenodeResolver.java:
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@@ -478,4 +478,37 @@ private List<MembershipState>
getRecentRegistrationForQuery(
public void setRouterId(String router) {
this.routerId = router;
}
+
+ /**
+ * Shuffle cache, to ensure that the current nn will not be accessed first
next time.
+ *
+ * @param nsId name service id
+ * @param namenode namenode contexts
+ */
+ @Override
+ public synchronized void shuffleCache(String nsId, FederationNamenodeContext
namenode) {
+ cacheNS.compute(Pair.of(nsId, false), (ns, namenodeContexts) -> {
+ if (namenodeContexts != null && namenodeContexts.size() > 1) {
Review Comment:
Thank you for your review, but I mistakenly submitted this pr to the
community.
All your revision suggestions this time, I have submitted to this correct pr
#5990 . you can review on this pr
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