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Questions tagged [datastax-enterprise]

DataStax Enterprise is big data platform consisting of open source tools such as Apache Cassandra, Solr and Hadoop (and several others).

DataStax Enterprise is big data platform consisting of open source tools such as Apache, Cassandra, Solr and DSE Graph (and others):

  • Cassandra
  • Spark
  • Hive
  • Mahout
  • Pig
  • Solr
  • Sqoop
  • DSE Graph

DSE is designed to manage real-time, enterprise search data in the same database cluster. It also comes with OpsCenter Enterprise, which allows for the management DSE Clusters via a central web interface.

While comprised of open-source tools, paid customers of DataStax receive 24x7 support, certified updates, and data migration tools. As support contracts can be pricey, DataStax also offers a program for (qualifying) startups to use DSE on a startup-friendly budget.

DataStax Enterprise website: http://www.datastax.com/products/enterprise

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Can you use solr_query in Cassandra to find map field containing some particular value?

I would like to use solr_query to find results which field of map type contains given key-value pair. I'm trying to create a query similar to this: SELECT * FROM my_table WHERE pathId= 5 AND solr_query='validity: [1970-01-01T00:01:00 TO *] ’ AND…
Marcin Zareba
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How to know Native Clients connected to Cassandra

I am able to see 160 Native clients on a particular node from OpsCenter. But none of the application is pointing to this DC or any of the nodes from this DC. If above is the situtation what are those 160 Native clients? Few of them are because I…
Anil Kapoor
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Will using DNS failover work as a Multi-DC failover strategy?

If I have a multi-DC cluster, DC1 and DC2, where DC2 is only used for failover. And in the driver on the client side, I define the contact points using the domain names (foo1.net, foo2.net, and foo3.net). I have foo* pointing to DC1 and if I ever…
Glide
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error while trying to install cassandra-driver using python

I'm trying to install cassandra-driver using python(on windows) but it fails with following exception. could someone please help me on this, I have also tried the manual installation process mentioned at following location & its same…
Siva Dasari
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What happens when all seed nodes in Cassandra are down? Can new nodes join the cluster at that point?

What happens when all seed nodes in Cassandra are down? Can new nodes join the cluster at that point ?
RDR
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Cassandra Exception Cache schema version X does not match current schema version Y

We had DataStax Cassandra Community Server 3.0.2 installed on our boxes, got couple of keyspaces created and we migrated some data from our old DB to Cassandra (Aroudnd 10GB of data). While, that was migration was happening we created materialized…
Learner
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Get distinct partition keys from C* table

cqlsh doesn't allow nested queries so I cant export selected data to csv.. I'm trying to export the selected data (about 200,000 rows with a single column) from cassandra using: echo "SELECT distinct imei FROM listener.snapshots;" > select.cql…
user2552806
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Spark JoinWithCassandraTable on TimeStamp partition key STUCK

I'm trying to filter on a small part of a huge C* table by using: val snapshotsFiltered = sc.parallelize(startDate to endDate).map(TableKey(_)).joinWithCassandraTable("listener","snapshots_tspark") println("Done Join") //******* …
user2552806
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Spark joinWithCassandraTable() on map multiple partition key ERROR

I'm trying to filter on a small part of a huge Cassandra table by using: val snapshotsFiltered = sc.parallelize(startDate to endDate).map(TableKey(_2)).joinWithCassandraTable("listener","snapshots_test_b") I want to map the rows in the cassandra…
user2552806
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Datastax Enterprise license pricing per node

We have a cluster of 5 node. Since datastax community edition doesn't offer reliable technical support, we are planning to purchase datastax enterprise. I would like to know cost of the datastax enterprise license per node.
Srinivasan MK
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cassandra-stress "Failed to connect over JMX; not collecting these stats"

I’m trying to use the cassandra-stress tool for the first time today. Although I'm able to run the tool, a lot of "Failed to connect over JMX; not collecting these stats" messages are displayed in the output Command cassandra-stress user \ …
PJ.
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Can I add Apache cassandra nodes to DataStax (DSE) cassandra cluster?

I am in the process of migrating from Datastax (DSE) Cassandra to Apache Cassandra 3.11. I have a cluster of 7 nodes of Datastax (DSE) Cassandra. Is there a way I create new cluster of apache Cassandra & connect it to DSE Cassandra so that my…
Puneet Agarwal
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How to start Spark Thrift Server on Datastax Enterprise (fails with java.lang.NoSuchMethodError: ...LogDivertAppender.setWriter)?

When I am trying to run datastax spark-sql-thriftserver, I am getting these errors: dse spark-sql-thriftserver start \ --conf spark.cores.max=10 \ --conf spark.executor.memory=2g \ --hiveconf hive.server2.thrift.port=10001 Spark Command:…
rajat
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Cassandra Nodetool status not working: AttributeNotFoundException: No such attribute: EndpointToHostId

I am getting the following Exception when I run nodetool status on my Cassandra nodes. I am using DSE 4.7, any idea what could be the issue. All the nodes are running the same version of the DSE -bash-4.1$ nodetool status error: No such attribute:…
Suresh Pendap
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Django: UUID type in {% url } tag

Intro I am following the Django tutorial. In contrast to it I have two databases - MySql and Cassandra. Therefore, I need to use also the Cassandra models which contain the UUID types. Thee UUID has the form of 32 alphanumeric characters and four…
karelok
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