https://community.cloudera.com/t5/Support-Questions/quot-Pending-Deletion-Blocks-276861-quot-What-does-this-mean/m-p/321716#M228534 <DIV class="votecell post-layout--left"><DIV class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200"><DIV class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title"><SPAN>i just suffered from this. you should change the parameter in hdfs-site.xml</SPAN></DIV></DIV></DIV><P>&nbsp;</P><LI-CODE lang="java">&lt;property&gt; &lt;name&gt;dfs.block.invalidate.limit&lt;/name&gt; &lt;value&gt;50000&lt;/value&gt; &lt;/property&gt;</LI-CODE><P>&nbsp;</P><P>the default value is 1000 , which is too slow</P><P>may be you should also change report size, if you have exception about that</P><P>&nbsp;</P><LI-CODE lang="python">&lt;property&gt; &lt;name&gt;ipc.maximum.data.length&lt;/name&gt; &lt;value&gt;1073741824&lt;/value&gt; &lt;/property&gt;</LI-CODE><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Thu, 29 Jul 2021 07:21:48 GMT ico001 2021-07-29T07:21:48Z