title: Innodb buffer pool size variable and buffer pool size in innodb status mismatch
body: <p>I tried increasing the innodb buffer pool size to 8GB recently but in my innodb status the pool size looks like the previous value it was configured to (500MB in my case).</p>
  
  <pre><code>----------------------
  BUFFER POOL AND MEMORY
  ----------------------
  Total memory allocated 9576946034; in additional pool allocated 19271936
  **Buffer pool size   524288**
  Free buffers       2
  Database pages     508873
  Modified db pages  5
  Pending reads 0
  Pending writes: LRU 0, flush list 0, single page 0
  Pages read 443350, created 76998, written 683297
  0.00 reads/s, 0.00 creates/s, 0.37 writes/s
  Buffer pool hit rate 1000 / 1000
  </code></pre>
  
  <p>But this is what innodb status shows,</p>
  
  <pre><code>mysql&gt; show variables like 'innodb_%';
  +---------------------------------+------------------------+
  | Variable_name                   | Value                  |
  +---------------------------------+------------------------+
  | innodb_additional_mem_pool_size | 52428800               | 
  | innodb_autoextend_increment     | 8                      | 
  | innodb_buffer_pool_awe_mem_mb   | 0                      | 
  | innodb_buffer_pool_size         | 8589934592             | 
  </code></pre>
  
  <p>Could anybody please let me know what causes this difference?</p>