https://community.cloudera.com/t5/Support-Questions/Datanode-Failures-DataXceiver-error-processing-WRITE-BLOCK/m-p/173849#M136112 <P>In the posted stack trace, there are lot of GC pauses. </P><P>Below is a good article explaining Namenode Garbage Collection practices:</P><P><A href="https://community.hortonworks.com/articles/14170/namenode-garbage-collection-configuration-best-pra.html" target="_blank">https://community.hortonworks.com/articles/14170/namenode-garbage-collection-configuration-best-pra.html</A></P> Tue, 28 Mar 2017 04:16:10 GMT namaheshwari 2017-03-28T04:16:10Z