astyanax | Cassandra Java Client | Search Engine library
kandi X-RAY | astyanax Summary
kandi X-RAY | astyanax Summary
Astyanax is a high level Java client for Apache Cassandra. Apache Cassandra is a highly available column oriented database: Astyanax was the son of Hector in greek mythology. Astyanax is currently in use at Netflix. Issues generally are fixed as quickly as possbile and releases done frequently.
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Top functions reviewed by kandi - BETA
- Write rows
- Write the columns
- Write column names
- Write columns as json
- Execute the callback
- Describe ring ranges
- Get the partitioner for this partitioner
- Get the index expression
- Returns the wrapped object as a byte array
- New execute with failover
- Update the list of pools in the ring
- Borrow a connection from the bag
- Starts the consumers
- Executes the operation using failover strategy
- Inits the config
- Create a mutable mutation batch
- Get a list of the hosts from the source
- Init the comparator type map
- Set the host list to use
- Create a native query
- Starts the write operation
- Sort partitions
- Prepare column mutation
- Returns an iterator over the rows in the query
- Returns a MessageProducer
- Returns the object metadata
astyanax Key Features
astyanax Examples and Code Snippets
Community Discussions
Trending Discussions on astyanax
QUESTION
I'm trying to setup JanusGraph for development on my local machine. My goal is to have a setup similar to the Cassandra remote server mode. As storage backend, I want to use Cassandra and as index backend I planned to use Elasticsearch.
For both, I'm using Docker containers (Cassandra, Elasticsearch).
My janusgraph-server.properties
file looks like this:
ANSWER
Answered 2019-Jul-26 at 00:28Have you verified whether Elasticsearch and Cassandra are running on those ports on localhost? If not, I would recommend checking that you're forwarding to those ports when starting your containers.
I would also recommend checking the logs for Cassandra and Elasticsearch and seeing if there is any errors in those.
QUESTION
I'm looking at https://github.com/Netflix/astyanax/wiki/Cassandra-compatibility and it doesn't seem to be updated to current versions. I'm currently using Cassandra 2.0.x and I am wondering if it's compatible with Astyanax 3.10.x, since it's causing a few tests to fail.
...ANSWER
Answered 2019-Apr-18 at 13:09From my understanding Cassandra 2.0 was the last one added, it seems like astyanax is retired. Its possible that some releases on 2.0.X would work but the errors you are seeing are probably due to the new changes/functionality added to Cassandra which is not supported by astyanax.
Here is their last update where they suggest switching to datastax
If you really need to use astyanax i would suggest going down to Cassandra 2.0 otherwise it might be best to switch to datastax
QUESTION
I'm using gremlinpython
to access the data in Janusgraph, but it is throwing an exception whereas the data is accessible from Gremlin shell.
Here is the Python code which I'm running remotely:
...ANSWER
Answered 2018-Oct-09 at 17:00The problem is with the latest version (3.3.3) of gremlinpython
. Using 3.2.6 as the version of gremlinpython
will fix this issue. Check out this blog for a complete guide of connecting to Janusgraph using Python.
QUESTION
The title could also be:
What are the differences between Maven and SBT assembly plugins.
I have found this to be an issue, while migrating a project from Maven to SBT.
To describe the problem I have created an example project with dependencies that I found to behave differently, depending on the build tool.
https://github.com/atais/mvn-sbt-assembly
The only dependencies are (sbt style)
...ANSWER
Answered 2018-May-22 at 08:39From the build.sbt I can see that their is no Merge-Strategy in you build. Plus there is a Rogue "," in your libraryDependencies Key placed after the dependency of "org.apache.cassandra" % "cassandra-all" % "3.4" in your build.sbt in the project to which the link you have shared above.
A merge strategy is required to handle all the duplicate files and in the jar as well as versions. The following one is an example of how to get one in place in your build.
QUESTION
I've Cassandra 3.11.1 installed and running on my Mac (OS X 10.11.6). Running cqlsh
in terminal prints the following message:
ANSWER
Answered 2017-Nov-19 at 04:01The cassandra
and cassandrathrift
backend uses Thrift, which is not enabled by default in Cassandra 3.11.1. You can enable Thrift either in the cassandra.yaml
by setting start_rpc: true
or on the command line with nodetool enablethrift
.
If you are using JanusGraph 0.2.0 or later, you can use the CQL storage adapter which uses the native CQL protocol. You can do this by setting storage.backend
to cql
. Read more about the CQL options in the JanusGraph configuration reference.
QUESTION
I am trying to install Spinnaker but facing issue every time. 1. Tried to deploy using Google Launcher it is not starting anything on port 9000 2. Now trying to install using steps mentioned in https://github.com/spinnaker/spinnaker. Here I ../spinnaker/dev/run_dev.sh I am getting an exception
...ANSWER
Answered 2017-Jul-25 at 23:21The Google Spinnaker Cloud Launcher indeed appears to be broken. I recently tried several times to deploy Spinnaker using it and experienced the same issues as you.
When you say:
Now trying to install using steps mentioned in https://github.com/spinnaker/spinnaker.
do you mean you're setting up the development environment? That's meant to be used when you actually want to write code for Spinnaker, not for normal use of the project.
The recommended way of getting a running Spinnaker installation is to use Halyard, the Spinnaker deployment tool.
QUESTION
ANSWER
Answered 2017-Jul-17 at 05:14Enable Thrift server of Cassandra
Use the below command to enable thrift
QUESTION
In the host machine's shell:
...ANSWER
Answered 2017-Jan-08 at 22:48On a high level, my question is simply "What is going on here and what can I do about it?"
If you look at the "caused by" chain for the exception, the original one says:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install astyanax
You can use astyanax like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the astyanax component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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