How to set the lsm component size?

[Jianfeng Jia]

Dear devs,

I’m using the `no-merge` compaction policy and find that the physical flushed 
on-disk component is smaller than I was expected. 

Here are my related configurations 

  <property>                                                                    
                                                                                
                
    <name>storage.memorycomponent.pagesize</name>
    <value>128KB</value>
    <description>The page size in bytes for pages allocated to memory
      components. (Default = "131072" // 128KB)
    </description>
  </property>
 
  <property>
    <name>storage.memorycomponent.numpages</name>
    <value>1024</value>
    <description>The number of pages to allocate for a memory component.
      (Default = 256)
    </description>
  </property>

With these two settings, I’m expecting the lsm component should be 128M. 
However, the flushed one is about 16M~ 20M. Do we have some compression for the 
on-disk components? If so, it will be good. Otherwise, could someone help me to 
increase the component size? Thanks!

Best,

Jianfeng Jia
PhD Candidate of Computer Science
University of California, Irvine