@Yuri Chemolosov @schintalapani good find Yuri, have you tried the suggested work around and set nimbus_uptime_secs to 0? the https://storm.apache.org/apidocs/backtype/storm/generated/ClusterSummary.html#set_nimbus_uptime_secs(int) let me know if the workaround works, I see it is happening frequently. ... View more

@Mehdi TAZI Lily is not an HDP product, it was contributed by Ngdata. Perhaps you can reach out to their mailing list for any HA advice? You may have to come up with your own HA for it, then you should certainly share your docs here for the best of the community! As far as HBase, make sure you run multiple master servers. ... View more

can you still provide the regionserver logs? @Raja Ray what I suggested are just common practices and not necesserily a solution for your problem. ... View more

This calls for an expert, @bsaini ... View more

@Yashwant Chandrakar Metadata store: Metadata is modeled using a graph model, implemented using the Graph database Titan. Titan has options for a variety of backing stores for persisting the graph, including an embedded Berkeley DB, Apache HBase and Apache Cassandra. The choice of the backing store determines the level of service availability. http://atlas.incubator.apache.org/Architecture.htm... * Hbase as the Storage Backend for the Graph Repository By default, Atlas uses Titan as the graph repository and is the only graph repository implementation available currently. The HBase versions currently supported are 1.1.x. For configuring ATLAS graph persistence on HBase, please go through the "Configuration - Graph persistence engine - HBase" section for more details. * Configuring SOLR as the Indexing Backend for the Graph Repository By default, Atlas uses Titan as the graph repository and is the only graph repository implementation available currently. For configuring Titan to work with Solr, please follow the instructions below http://atlas.incubator.apache.org/0.6.0-incubating... ... View more

@Pavel Benes more of a hack but maybe you can try using a shell action to call your java command, then capture output of the action? ... View more

@Kuldeep Kulkarni you can familiarize yourself with Ambari Metrics design docs to customize alerts. Here's the whole section on Metrics system. Nagios was deprecated in Ambari and now uses Ambari Metrics Collector/Monitor system. Please upgrade your Ambari system to use the Metrics API and not Nagios/Ganglia, then you can extend the alert functionality. One more doc for good measure. ... View more

@Ram D yes see my comment above ... View more

yes you can assign multiple nodes to a label, that's the premise of node labels, you want to designate GPU heavy nodes to node label GPU, nodes with SSD to label SSD, etc, the label needs to be shared and not exclusive. Here's design PDF and yet another PDF for node lables and associated Jira. Here's a screenshot from the first PDF: ... View more