Re: Does Java driver v3.1.x degrade cluster connect/close performance?

;d be interested to see if running the same test in your environment > creates different results. > I'll run the test in my test environment and share the result. Thank you > again. > > Regards, > Satoshi > > On Tue, Mar 7, 2017 at 12:38 AM, Andrew Tolbert < &

Re: Does Java driver v3.1.x degrade cluster connect/close performance?

99.9% <= 8.03 milliseconds Similary when using a local C* node, initialization times are pretty similar. I'd be interested to see if running the same test <https://gist.github.com/tolbertam/e6ac8b71a7703a6fc4561356767a1501> in your environment creates different results. T

Re: Does Java driver v3.1.x degrade cluster connect/close performance?

Hi Satoshi, This question would be better for the 'DataStax Java Driver for Apache Cassandra mailing list ', but I do have a few thoughts about what you are observing: Between java-driver 2.1 and 3.0 the driver updat

Re: Authentication with Java driver

Hello, The API seems kind of not correct because credentials should be > usually set with a session but actually they are set with a cluster. > With the datastax driver, Session is what manages connection pools to each node. Cluster manages configuration and a separate connection ('control conne

Re: Consistency when adding data to collections concurrently?

d); > > Will that work? > > On Sat, Nov 12, 2016 at 8:38 PM, Andrew Tolbert < > andrew.tolb...@datastax.com> wrote: > > You can do it in a SimpleStatement assuming you provide the CQL exactly as > you provided, but in a PreparedStatement it will not work because cql &

Re: Consistency when adding data to collections concurrently?

You can do it in a SimpleStatement assuming you provide the CQL exactly as you provided, but in a PreparedStatement it will not work because cql prohibits provide bind values in collection literals. For it to work you could provide a List of UDT values in a bound prepared statement, i.e.: Use

Re: Deadlock in callbacks to async operations (Java)

> > Will the above example work if instead of session.execute, it was doing > session.executeAsync()? > It will work as executeAsync will not block waiting on behavior in a I/O thread (that may also happen to be the calling thread), so it is not susceptible to deadlock. To be extra safe, you coul

Re: Being asked to use frozen for UDT in 3.9

t; CREATE TABLE test.test_table ( > id text PRIMARY KEY, > this_doesnt_work test > ) WITH bloom_filter_fp_chance = 0.01 > > > On Mon, Oct 10, 2016 at 9:25 PM Ali Akhtar wrote: > >> CREATE TYPE test ( >> foo text, >> bar text >> ); >>

Re: Being asked to use frozen for UDT in 3.9

test, > PRIMARY KEY (id) > ); > > On Tue, Oct 11, 2016 at 9:23 AM, Andrew Tolbert < > andrew.tolb...@datastax.com> wrote: > > Can you please share an example where it doesn't work? > > Thanks, > Andy > > On Mon, Oct 10, 2016 at 11:21 PM Ali Akhtar wrote: >

Re: NamingStrategy for the Java Driver for camelCase / snake_case conversion?

create a pojo for the UDT, and use > @Column on the fields, and it will work if I define a field in the table > mapping class as being of that pojo type? > > On Tue, Oct 11, 2016 at 8:57 AM, Andrew Tolbert < > andrew.tolb...@datastax.com> wrote: > > I agree this would be

Re: Being asked to use frozen for UDT in 3.9

(not primary or > cluster key) as being of that type, but it doesn't let me do that unless i > set it as frozen. Docs indicate otherwise though > > On Tue, Oct 11, 2016 at 9:09 AM, Andrew Tolbert < > andrew.tolb...@datastax.com> wrote: > > Is the column you are using tha

Re: Being asked to use frozen for UDT in 3.9

Is the column you are using that has the UDT type is the or is part of the primary key? If that is the case it still needs to be frozen (the same goes for list, set, tuple as part of primary key). This is the error I get when I try that: InvalidRequest: Error from server: code=2200 [Invalid quer

Re: NamingStrategy for the Java Driver for camelCase / snake_case conversion?

2016 at 10:30 PM Ali Akhtar wrote: > Please fix this. > > > > On Tue, Oct 11, 2016 at 8:28 AM, Andrew Tolbert < > andrew.tolb...@datastax.com> wrote: > > Hi Ali, > > As far as I know this hasn't changed. Either the field name on the class > has to matc

Re: NamingStrategy for the Java Driver for camelCase / snake_case conversion?

Hi Ali, As far as I know this hasn't changed. Either the field name on the class has to match the name of the column or you have to use the @Column with the name attribute to set the column name being mapped by that field. Thanks, Andy On Mon, Oct 10, 2016 at 8:03 PM Ali Akhtar wrote: > In wo

Re: Running Cassandra in Integration Tests

Hi Ali, cassandra-unit might be what you are looking for. It allows you to run an embedded cassandra instance along side your tests and has some nice integration with JUnit. Thanks, Andy On Thu, Oct 6, 2016 at 7:13 PM Ali Akhtar wrote: > Ok, but t

Re: Re : Generic keystore when enabling SSL

e're using 3rd party signed certificates, and want to avoid > the hassle of managing 100's of certificates. > > thanks > Sai > -- [image: DataStaxLogo copy3.png] <http://www.datastax.com/> Andrew Tolbert Software Engineer in Test | (612)-222-6271 | andrew.tolb...@datast

Re: How to define blob column in Java?

Hi Alexandr, I am assuming you are referring to the @Table annotation in the mapping module in the Datastax Java Driver for Apache Cassandra (please correct me if I am wrong). You can achieve this with any of these three types using a custom codec

Re: Maximum Row Limit

Hello Mangeet, According to CassandraLimitations the maximum cells per Partition key is 2 billion: > >- The maximum number of cells (rows x columns) in a single partition >is 2 billion. > > Therefore the maximum number of rows per