Cassandra-Java-Driver and C* v3.* -- failed to connect

Discussion:

s***@gmail.com

2016-01-05 04:51:16 UTC

Hi All,
I'm trying to connect to C* v3.1.1 cluster.
It works nice with cqlsh

/$ cqlsh//
//Connected to Test Cluster at 127.0.0.1:9042.//
//[cqlsh 5.0.1 | Cassandra 3.1.1 | CQL spec 3.3.1 | Native protocol v4]/

But doesn't work with /cassandra-driver-core/.
I use next mvn deps:

/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>3.0.0-rc1</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/

And connect in the next code:

/Cluster.Builder builder = Cluster.builder()
.withProtocolVersion(ProtocolVersion.V4)
.withPort(9042)
.addContactPoint("127.0.0.1");

cluster = builder.build();
Metadata metadata = cluster.getMetadata();/

And it doesn't work. I get the exception:
/com.datastax.driver.core.exceptions.NoHostAvailableException: All
host(s) tried for query failed (tried: /127.0.0.1:9042
(com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1]
Cannot connect))//
// at
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:231)//
// at
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)//
// at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1382)//
// at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:393)/

Everything is ok for C* 2.2.4 when I use
/
$ cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 2.2.4 | CQL spec 3.3.1 | Native protocol v4]/

/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>2.1.9</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/

/Cluster.Builder builder = Cluster.builder()
.withPort(9042)
.addContactPoint("127.0.0.1");

/C* java driver isn't ready to use?/
/

--
Thanks,
Serj

Alex Popescu

2016-01-05 08:57:32 UTC

Permalink

Hi Serj,

Have you tried the 3.0 rc? Due to some changes in the system tables, the
older versions of the driver do have problems connecting.

Post by s***@gmail.com
Hi All,
I'm trying to connect to C* v3.1.1 cluster.
It works nice with cqlsh
/$ cqlsh//
//Connected to Test Cluster at 127.0.0.1:9042.//
//[cqlsh 5.0.1 | Cassandra 3.1.1 | CQL spec 3.3.1 | Native protocol v4]/
But doesn't work with /cassandra-driver-core/.
/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>3.0.0-rc1</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/
/Cluster.Builder builder = Cluster.builder()
.withProtocolVersion(ProtocolVersion.V4)
.withPort(9042)
.addContactPoint("127.0.0.1");
cluster = builder.build();
Metadata metadata = cluster.getMetadata();/
/com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s)
tried for query failed (tried: /127.0.0.1:9042
(com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1]
Cannot connect))//
// at
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:231)//
// at
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)//
// at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1382)//
// at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:393)/
Everything is ok for C* 2.2.4 when I use
/
$ cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 2.2.4 | CQL spec 3.3.1 | Native protocol v4]/
/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>2.1.9</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/
/Cluster.Builder builder = Cluster.builder()
.withPort(9042)
.addContactPoint("127.0.0.1");
/C* java driver isn't ready to use?/
/
--
Thanks,
Serj

--
Bests,

Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax

s***@gmail.com

2016-01-05 09:06:06 UTC

Permalink

I've just tried cassandra-driver-core v3.0.0-alpha5 and it works with C*
3.1.1. At least it connects to the cluster.

Post by Alex Popescu
Hi Serj,
Have you tried the 3.0 rc? Due to some changes in the system tables, the
older versions of the driver do have problems connecting.

--
Thanks,
Serj

Alex Popescu

2016-01-05 09:28:52 UTC

Permalink

Serj, there have been an RC recently which should give you a stable API and
the latest bug fixes:
https://groups.google.com/a/lists.datastax.com/d/msg/java-driver-user/779VHUOVcOM/h7fYfOyOBQAJ

Post by s***@gmail.com
I've just tried cassandra-driver-core v3.0.0-alpha5 and it works with C*
3.1.1. At least it connects to the cluster.

Post by Alex Popescu
Hi Serj,
Have you tried the 3.0 rc? Due to some changes in the system tables, the
older versions of the driver do have problems connecting.
Hi All,

Post by s***@gmail.com
I'm trying to connect to C* v3.1.1 cluster.
It works nice with cqlsh
/$ cqlsh//
//Connected to Test Cluster at 127.0.0.1:9042.//
//[cqlsh 5.0.1 | Cassandra 3.1.1 | CQL spec 3.3.1 | Native protocol v4]/
But doesn't work with /cassandra-driver-core/.
/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>3.0.0-rc1</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/
/Cluster.Builder builder = Cluster.builder()
.withProtocolVersion(ProtocolVersion.V4)
.withPort(9042)
.addContactPoint("127.0.0.1");
cluster = builder.build();
Metadata metadata = cluster.getMetadata();/
/com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s)
tried for query failed (tried: /127.0.0.1:9042
(com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1]
Cannot connect))//
// at
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:231)//
// at
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)//
// at
com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1382)//
// at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:393)/
Everything is ok for C* 2.2.4 when I use
/
$ cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 2.2.4 | CQL spec 3.3.1 | Native protocol v4]/
/<dependency>//
// <groupId>com.datastax.cassandra</groupId>//
//<artifactId>cassandra-driver-core</artifactId>//
// <version>2.1.9</version>//
//</dependency>//
//
//<dependency>//
// <groupId>org.apache.cassandra</groupId>//
// <artifactId>cassandra-all</artifactId>//
// <version>3.1.1</version>//
//</dependency>/
/Cluster.Builder builder = Cluster.builder()
.withPort(9042)
.addContactPoint("127.0.0.1");
/C* java driver isn't ready to use?/
/
--
Thanks,
Serj

--
Thanks,
Serj

--
Bests,

Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax

s***@gmail.com

2016-01-05 12:48:33 UTC

Permalink

Yes, I've tried 3.0.0-rc1. It can not connect to the cluster v3.1.1

Post by Alex Popescu
Serj, there have been an RC recently which should give you a stable API and
https://groups.google.com/a/lists.datastax.com/d/msg/java-driver-user/779VHUOVcOM/h7fYfOyOBQAJ

Post by s***@gmail.com
I've just tried cassandra-driver-core v3.0.0-alpha5 and it works with C*
3.1.1. At least it connects to the cluster.

Post by Alex Popescu
Hi Serj,
Have you tried the 3.0 rc? Due to some changes in the system tables, the
older versions of the driver do have problems connecting.
Hi All,

--
Thanks,
Serj