stack created HBASE-20549:
-----------------------------
Summary: Dead MBean:
Hadoop:service=HBase,sub=Memory,name=RegionServer
Key: HBASE-20549
URL: https://issues.apache.org/jira/browse/HBASE-20549
Project: HBase
Issue Type: Bug
Reporter: stack
I'm studying flushing and blocking memstores. I came across the MBean
Hadoop:service=HBase,sub=Memory,name=RegionServer It looks promising with
metrics on blocked flush time, etc. See below. All metrics are zero. I tried to
get it going. It is connected to the heap tuner facitlity that we might want to
turn on. I managed to get the latter going w/ below configs.... (need to dump
out more on what this thing is doing because it is tricky enabling it)
{code}
<configuration>
<property>
<name>
hbase.regionserver.global.memstore.size.min.range
</name>
<value>0.39</value>
</property>
<property>
<name>
hbase.regionserver.global.memstore.size.max.range
</name>
<value>0.41</value>
</property>
<property>
<name>
hfile.block.cache.size.max.range
</name>
<value>0.41</value>
</property>
<property>
<name>
hfile.block.cache.size.min.range
</name>
<value>0.39</value>
</property>
</configuration>
{code}
... but still the metrics are not updated.
We should make this bean work whether tuning is on or off or remove it.
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