datastax-java-driver

I tried reading up on datastax blogs and documentation but could not find any specific on this Is there a way to keep 2 tables in Cassandra to belong to same partition? For example: CREATE TYPE addr ( street_address1 text, city text, state text, country text, zip_code text, ); CREATE TABLE foo ( account_id timeuuid, data text, site_id int, PRIMARY KEY (account_id) }; CREATE TABLE bar ( account_id timeuuid, address_id int, address frozen<addr>, PRIMARY KEY (account_id, address_id) ); Here I need to ensure that both of these tables/CF will live on same partition that way for the same account_id

I am using below datastax versions with java8 <dependency> <groupId>com.datastax.cassandra</groupId> <artifactId>cassandra-driver-core</artifactId> <version>3.7.2</version> </dependency> <dependency> <groupId>com.datastax.cassandra</groupId> <artifactId>cassandra-driver-mapping</artifactId> <version>3.7.2</version> </dependency> My table has a Date column as below cass_table ( data_source_id int, company_id text, create_date date) When I trying to save the data into C* table as below final IndustryCompany four = new IndustryCompany(1,1236, ProdUtils.today()); industryCompanyRepository.save(one

The setup: 2-node Cassandra 2.0.7.31 cluster replicas=1 DataStax java driver 2.0 Problem I am using Datastax java driver for load balancing. I and generating 50000+ thread load by Jmeter but getting very low TPS. near about 1700 tps I have not changed any performance related parameter In cassandra.yaml can any one suggest which parameter should I use to get satisfactory TPS. I herd Most of the Folks are getting 10000+ tps with Cassandra. Thanks in advance By TPS you mean Ligthweight Transaction Per Second or just Operation per second . If it is Operation Per Second . Figure out whats your

I am working on designing the Cassandra Column Family schema for my below use case.. I am not sure what is the best way to design the cassandra column family for my below use case? I will be using CQL Datastax Java driver for this.. Below is my use case and the sample schema that I have designed for now - SCHEMA_ID RECORD_NAME SCHEMA_VALUE TIMESTAMP 1 ABC some value t1 2 ABC some_other_value t2 3 DEF some value again t3 4 DEF some other value t4 5 GHI some new value t5 6 IOP some values again t6 Now what I will be looking from the above table is something like this - For the first time

I am using datastax java driver 3.1.0 to connect to cassandra cluster and my cassandra cluster version is 2.0.10. Below is the singleton class I am using to connect to cassandra cluster. public class CassUtil { private static final Logger LOGGER = Logger.getInstance(CassUtil.class); private Session session; private Cluster cluster; private static class Holder { private static final CassUtil INSTANCE = new CassUtil(); } public static CassUtil getInstance() { return Holder.INSTANCE; } private CassUtil() { List<String> servers = TestUtils.HOSTNAMES; String username = TestUtils.loadCredentialFile(

I have following table create table test( userId varchar, notifId timeuuid, notification varchar, time bigint,read boolean, primary key(userId, notifId)) with clustering order by (notifId desc); I am running following query: PreparedStatement pstmt = session.prepare("INSERT INTO notifications(userId, notifId, notification, time, read) VALUES(?, now(), ?, ?, ?)"); BoundStatement boundStatement = new BoundStatement(pstmt); session.execute(boundStatement.bind("123", "hello", new Date().getTime(), false)); I am getting following error: Exception in thread "main" com.datastax.driver.core.exceptions

Blocking execute fethod from com.datastax.driver.core.Session public ResultSet execute(Statement statement); Comment on this method: This method blocks until at least some result has been received from the database. However, for SELECT queries, it does not guarantee that the result has been received in full. But it does guarantee that some response has been received from the database, and in particular guarantee that if the request is invalid, an exception will be thrown by this method. Non-blocking execute fethod from com.datastax.driver.core.Session public ResultSetFuture executeAsync