Minor compacts seem blocked on major compacts

[Randy Fox]

We just did a big leap forward from 0.94 to 1.0. We do our own major compacts 
manually every night. One of the first things we noticed is that when a major 
compact runs, no minors run.  The compaction queue grows and when the major 
compact finishes the minors then run.   I have not found any new knobs we 
should be setting.  Any ideas?
Our config is:

<property>
  <name>hbase.hregion.majorcompaction</name>
  <value>0</value>
  <final>true</final>
</property>
<property>
    <name>hbase.hstore.compactionThreshold</name>
    <value>3</value>
</property>

<property>
    <name>hbase.hstore.compaction.max</name>
    <value>9</value>
</property>
<property>
    <name>hbase.regionserver.thread.compaction.throttle</name>
    <value>2684354560</value>
</property>


Thanks in advance,

Randy