Kindly suggest a good client GUI tool for Cassandra or Please Share the download link of the DataStax DevCenter old version (V1.6.0). Currently we are using cqlsh to connect Cassandra. I couldn't find a better GUI for Cassandra.
Found (and tested) description how to connect using only open-source via DBeaver:
https://javaresolutions.blogspot.com/2018/04/opensource-db-ui-tool-for-cassandra-db.html
Download dbeaver (Community Edition)
Download cassandra jdbc jar files: http://www.dbschema.com/cassandra-jdbc-driver.html (Downloading and Testing the Driver Binaries section have links to binary and source)
extract cassandra jdbc zip
run dbeaver
go to Database > Driver Manager
click New
Fill in details as follow:
Driver Name: Cassandra (or whatever you want it to say)
Driver Type: Generic
Class Name: com.dbschema.CassandraJdbcDriver
URL Template: jdbc:cassandra://{host}[:{port}][/{database}]
Default Port: 9042
Embedded: no
Category:
Description: Cassandra (or whatever you want it to say)
click Add File and add all of the jars in the cassandra jdbc zip
click Find Class to make sure the Class Name is found okay
click OK
Create New Connection, selecting the database driver you just added
Here is the only open source and running example I found
https://github.com/Kindrat/cassandra-client for ready to run jar, you can use https://github.com/ozkanpakdil/cassandra-client/releases/download/v0.0.0/cassadra-client-0.0.0-0-exec.jar I built in my linux mint, GUI looks little bit demo like but I connected to my local cassandra and saw a table and data in the UI.
Not open source options below, I tested 2 of them and they are working, I can suggest datagrip which works fast and nice.
https://www.jetbrains.com/datagrip/download/#section=linux
https://www.mongodbmanager.com/download <<-- idi not test this one
https://razorsql.com/download.html
You may also look to the Cassandra interpreter in the Apache Zeppelin. The upcoming 0.9.0 release (0.9.0-preview2 is already available) contains a lot of changes in supporting Cassandra.
Related
I found this repo on github: https://github.com/apache/cassandra
And I would like to import it into intellij and build it in order to run some code locally that I want to build on top of this github code. But there are no instructions for building it.
Where are the instructions?
Thank you for taking interest in writing Cassandra code.
The instructions for building Cassandra from source code including IDE integration is documented in the Contributing to Cassandra page on the official Apache Cassandra website. There are instructions for IntelliJ, NetBeans and Eclipse.
It's not as straightforward as we would like because everyone's laptop/desktop is different so I would recommend you join the ASF Slack to get help in real-time from other Cassandra contributors in the #cassandra-dev channel. For details, see the Community section of the Cassandra website. Cheers!
👉 Please support the Apache Cassandra community by hovering over cassandra then click on the Watch tag button. 🙏 Thanks!
I am currently working on a project in which I need to connect Talend open Studio for Big Data (v 6.3.1) to an Azure’s HDInsight (3.5) Hadoop Cluster. So far, I am trying a simple example which consists in creating an Hive Table.
For that, I am using the following diagram:
The hive connection was configured as followed:
… and please find below the specifications of the tHiveCreateTable_1 node:
By running this process:
· The specified container and deployment Blob is created (see image below) - which make me believe that everything is ok with the Windows Storage Configuration
· However the tHiveCreateTable_1 node has an error (see image below)
· I strongly believe that it´s something related with the Hostname and Port;
· I tried to use the host name of the cluster and the hostname of the Hive server that we can find in Ambari (see image below)
· But none of them worked as expected.
Has any one tried something similar to this?
Note: It seems reasonably important to say that the Azure version supported by Talend is 3.4, however, I am using 3.5, it might be it.
Many thanks for your help in advance.
According to the offical docuemnt about the differences between Hadoop components and versions available with HDInsight, HDInsight 3.5 is based on Hortonworks Data Platform(HDP) 2.5, but HDI 3.4 is based on HDP 2.4. However, there is not big version difference for their Hive componets or other componets. So, my suggestion is that you can try to create a HDI 3.4 using the same Azure Storage account for your current HDI 3.5, without more effects for your needs.
I'm trying to look at using the Stratios Lucene index plugin (on Windows)installation of Cassandra (Datastax v3.5) but can't get Cassandra to recognize it.
I'm aware that you must use the corresponding version to Cassandra and have tried with 3.0.5 & 3.5 but both with the same results. The service is stopped, the index .jar file is copied to the lib directory & then the service is restarted. Then using CQLSH, I can create the relevant keyspace & table (as described in the Stratio documentation) but when attempting to create the index it fails with the following message:
Query invalid because of configuration issue: message="Unable to find custom indexer class 'com.stratio.cassandra.lucene.Index'"
https://github.com/Stratio/cassandra-lucene-index/tree/branch-3.5
Does anyone have any idea how to get this implemented & working?
Is there a central forum or a point of contact for Stratios Lucene index support?
This resource https://github.com/Stratio/cassandra-lucene-index/issues/118#issuecomment-211796434 suggests that only open source Apache Cassandra is officially supported by this plugin. It might work with DSE, might not. I checked 3.5.0 version works on Linux with Apache Cassandra but does not work on Windows with DSE :( According to Datastax docs, it should support custom secondary indexes. So, it might be the plugin does not run on Windows?
We are trying to implement external authentication to Cassandra on DSE 4.7. Followed few of the guides where we have to extend IAuthenticator class but after doing that there is less documentation on how to integrate.
Is it more of plug and play where we extend IAuthenticator class build a jar and place it in lib(/usr/share/dse/resources/cassandra/lib) and change the yaml file accordingly or is it take a source code from Github build entire tree and then use?
If so is Datastax's Cassandra available on Github?
What do we need to do to build external authentication other that LDAP and Kerberos in DSE 4.7?
extend IAuthenticator class build a jar and place it in
lib(/usr/share/dse/resources/cassandra/lib) and change the yaml file
accordingly
^^ yes, this is the right approach.
Datastax's Cassandra available on Github?
Not exactly. You'll see the version of c* that ships with DSE in the release notes, you can check the source in the apache/cassandra github and it will match (up to and excluding the build number). The exact c* build under DSE will have some critical patches from future versions and that exact source code is not avaliable. However, the dot release in apache/cassandra is good enough for all intents and purposes.
I.E. look at https://github.com/apache/cassandra/tree/cassandra-2.1.8 for 4.7.1
As mentioned by #Mikea we need to override ISaslAwareAuthenticator and while using Cassandra in DSE need to be very sure of Cassandra version and then dig into appropriator Github repo.
I am trying to query Cassandra using Apache Drill. The only connector I could find is here:
http://www.confusedcoders.com/bigdata/apache-drill/sql-on-cassandra-querying-cassandra-via-apache-drill
However this does not build. It comes up with an artifact not found error. I also had another developer who is more versed in these tools take a stab at it, but he also had no luck.
I tried contacting the developer of the plugin I referenced, but the blog does not work and won't let me post comments. Has anyone got this plugin to work (if so how?) or is there another plugin or method I can use to connect apache drill to Cassandra? If anyone could show me how to connect an execute a simple SQL query that would be much appreciated.
I looked at the latest Cassandra storage plugin patch and the latest apache drill source. The drill code has changed and the patch can no longer be applied.
I then manually took the patch apart (it id mostly diff output). Most of the patch was new classes which I could easily add to the latest drill source tree. Most of the other updates were easy to insert into the current source. There were two specific classes that required some minor code modifications/extensions. I rebuilt the distribution from the modified source and installed the drill servers it on a 3 node cluster. The Cassandra schema failed to initialize properly throwing a null pointer exception one of the new classes. This leads me to believe that the (latest) modifed storage plugin is incompatible with the latest version of Cassandra. Since the author of the original storage plugin is unreachable and no one else is stepping up to support the code, this is a dead horse. Beat it if you must.
I was the author of the patch written a year back. Could not get it merged into Drill then, and later got occupied with other stuffs :(
With so many changes to Drill internals, I am not sure what amount of welding would be needed at this point to get it working. Please use the code just as a reference for writing a Drill storage plugin.
Have added this banner on top of the blog post to save fellow developer's hours.
I don't know if anyone is still interested in this topic but I've been experimenting with this plugin and got it to work with Drill 1.18-SNAPSHOT. Here is a link to my branch with this code: 1. My plan is to submit this as a PR for Drill, but it still needs some work. This code will successfully query Cassandra 3.11.5 (latest stable version).