Hadoop HDFS - Difference between Missing replica and Under replicated blocks
<p>I know that both Under-replicated blocks and Mis-replicated blocks occur due to lesser data node count with respect to replication factor set. </p>

<p>But what is the difference between them?</p>

<p>On re-setting replication factor to 1 where available data node is 1, both Under-replicated blocks and Missing replica error got cleared. Ensured this by executing command <strong>hdfs fsck /</strong>
<a href="https://i.stack.imgur.com/otttl.png" rel="noreferrer"><img src="https://i.stack.imgur.com/otttl.png" alt="FSCK report"></a></p>