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     <h3 class="title">
      <a name="innodb-monitor-types">
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      17.17.1 InnoDB Monitor Types
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  <p>
   There are two types of
   <code class="literal">
    InnoDB
   </code>
   monitor:
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     <p>
      The standard
      <code class="literal">
       InnoDB
      </code>
      Monitor displays the
          following types of information:
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        <p>
         Work done by the main background thread
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       </li>
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        <p>
         Semaphore waits
        </p>
       </li>
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        <p>
         Data about the most recent foreign key and deadlock errors
        </p>
       </li>
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        <p>
         Lock waits for transactions
        </p>
       </li>
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        <p>
         Table and record locks held by active transactions
        </p>
       </li>
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        <p>
         Pending I/O operations and related statistics
        </p>
       </li>
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        <p>
         Insert buffer and adaptive hash index statistics
        </p>
       </li>
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        <p>
         Redo log data
        </p>
       </li>
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        <p>
         Buffer pool statistics
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        <p>
         Row operation data
        </p>
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     <p>
      The
      <code class="literal">
       InnoDB
      </code>
      Lock Monitor prints additional
          lock information as part of the standard
      <code class="literal">
       InnoDB
      </code>
      Monitor output.
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