question Re: CDH namenode java heap bigger than it should be in Support Questions

question Re: CDH namenode java heap bigger than it should be in Support Questions https://community.cloudera.com/t5/Support-Questions/CDH-namenode-java-heap-bigger-than-it-should-be/m-p/315110#M226340 Dear <a href="https://community.cloudera.com/t5/user/viewprofilepage/user-id/29186">@kingpin</a> Thanks for your reply, I do have a sparkstreaming proccess for storing files to hdfs from kafka every two minutes. You can refer the screenshot below for the data volume.The java heap is increasing every day. I think it will be over 70GB after 1 month, but the blocks is still less than 2 million.Is there anyway to clean cache of javaheap？ The memory of java heap will be normal after rebooting.sparkstreaming of car @kingpin  Thanks for your reply, I do have a sparkstreaming proccess for storing files to hdfs from kafka every two minutes. You can refer the screenshot below for the data volume. The java heap is increasing every day. I think it will be over 70GB after 1 month, but the blocks is still less than 2 million. Is there anyway to clean cache of javaheap？  The memory of java heap will be normal after rebooting. sparkstreaming of consuming kakfa:<img src="https://community.cloudera.com/t5/image/serverpage/image-id/30974i2C1E89D40AB0C5AC/image-size/large?v=v2&px=999" role="button" title="sparkstreaming.png" alt="sparkstreaming.png" /> Fri, 23 Apr 2021 02:40:24 GMT ROACH 2021-04-23T02:40:24Z