@Neeraj Sabharwal I was getting same alert, ambari 2.2.0, hdp 2.3.4. I updated both passwords (admin and amb_user_admin), alert turned green after few minutes. ... View more

Also check this script: https://github.com/hortonworks/HDP-Public-Utilities/blob/master/Installation/cleanup_script.sh ... View more

If you are getting message "plan not optimized by CBO" when your table has statistics, please, check your hive log and look if you don't have message below: "parse.BaseSemanticAnalyzer: Not invoking CBO because the statement has too few joins" This message in log mean CBO wasn't used just because it wasn't needed, as your query may have few joins. The warning message in explain is not clear, as it says only "plan not optimized by CBO", but it's not an issue if you see the extra message in log file. ... View more

@Artem Ervits Yes, this one is the easiest, but seems like it does not include all the required libraries to make pyspark to work (for example). ... View more

@Sandeep If you open YARN UI and click Application Master link, you will be redirect to Spark Web UI of your application submitted by spark-shell (and others). ... View more

@Wes Floyd I'm not expert in this subject, but looks like HDP Search - Hbase connector uses replication and not WAL Codec, this way I think you can use both, Solr Connector + Phoenix. https://doc.lucidworks.com/lucidworks-hdpsearch/2.3/Guide-Jobs.html#_how-the-hbase-indexer-works ... View more