question How to estimate the Optimal Java Heap Size for Navigator Metadata Server when there is no nav_elements nor nav

question How to estimate the Optimal Java Heap Size for Navigator Metadata Server when there is no nav_elements nor nav_relations? in Support Questions https://community.cloudera.com/t5/Support-Questions/How-to-estimate-the-Optimal-Java-Heap-Size-for-Navigator/m-p/300858#M220402 Hello,  I have a Production cluster and I get out of memory errors for Navigator Metadata Server. This is generating large dump files (33GB last time) in /tmp. Since /tmp has only 50GB it get's full quite fast.  Errors:     <LI-CODE lang="markup">The health test result for NAVIGATORMETASERVER_UNEXPECTED_EXITS has become bad: This role encountered 1 unexpected exit(s) in the previous 5 minute(s).This included 1 exit(s) due to OutOfMemory errors. Critical threshold: any. The health test result for NAVIGATORMETASERVER_DATA_DIRECTORY_FREE_SPACE has become unknown: Not enough data to test: Test of whether the Navigator Metadata Server Storage Dir has enough free space.</LI-CODE>     There is a formula to estimate the optimal Java Heap Size for Navigator Metadata Server but the problem in my case is that in the cloudera-scm-navigator log file there is no nav_elements nor nav_relations. Is there any way to estimate the optimal java heap size? Current value is set to 24GB. Formula: ((num_nav_elements + num_nav_relations) * 200 bytes) + 2 GB  <A href="https://docs.cloudera.com/documentation/enterprise/latest/topics/cn_admcfg_nms_tuning.html#est-java-heap" target="_blank" rel="noopener">Link from Cloudera Docs</A> Thank you,  Tue, 04 Aug 2020 09:50:03 GMT md186036 2020-08-04T09:50:03Z