junegunn commented on code in PR #8758:
URL: https://github.com/apache/hbase/pull/8758#discussion_r4253580060
##########
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterWrapperImpl.java:
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@@ -267,4 +269,31 @@ public long getOldWALsDirSize() {
}
return master.getMasterWalManager().getOldWALsDirSize();
}
+
+ @Override
+ public Map<String, Integer> getSwitchStates() {
+ if (!master.isActiveMaster() || !master.isInitialized()) {
+ return Collections.emptyMap();
Review Comment:
Thanks for review. You're right that it's more consistent, but I think
emitting `-1` during master restart, which can be quite frequent in some cases,
could make monitoring more complicated without giving much benefit.
So on second thought, how about removing `-1` state altogether and also
omitting `rpcThrottleEnabled` if it's not ready?
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