Hello @ldylag, The stacktrace shows that the "org.postgresql.core.v3.ConnectionFactoryImpl" class depends on the "com/ongres/scram/common/stringprep/StringPreparation.class" - and that is not available on the classpath. By default HMS searches for the JDBC driver under the /usr/share/java. Please compare if the same JDBC driver is available on both HMS hosts. Probably the best would be to use the latest drivers from: https://jdbc.postgresql.org/download/ Best regards  Miklos ... View more

Hi @Meepoljd , The file and block metadata consumes the NameNode heap. Can you share how did your calculation? Per our docs: https://docs.cloudera.com/cdp-private-cloud-base/7.1.8/hdfs-overview/topics/hdfs-sizing-namenode-heap-memory.html  the file count should kept below 300m files. Also the same page suggests that approximately 150 bytes are needed for each namespace object, I assume you did your calculation based on that. The real NN heap consumption varies with the path lengths, ACL counts, replication factors, snapshots, operational load, etc. As such in our other page https://docs.cloudera.com/cdp-private-cloud-base/7.1.8/hdfs-overview/topics/hdfs-examples-namenode-heap-memory.html  we suggest to allocate rather a bigger heap size, 1 GB heap for 1 million blocks, which would be ~320 GB in your case. Hope this helps, Best regards, Miklos ... View more

Hi @Sokka  Thank you for raising this. I see the same behavior in the "Sqoop 1" editor, though with some older CDH versions, I haven't tested with the most recent ones, maybe it's already fixed. In any case, I would not advise to use the "Sqoop 1" editor, it will quickly become insufficient, as it does not provide any advanced configurations. Instead please create an Oozie workflow (Scheduler / Workflow) with a Sqoop action, you have better controls over there. As I see this problem should have been fixed in later versions, see https://issues.cloudera.org/browse/HUE-6717  Best regards  Miklos ... View more