Monthly Archives: October 2015

Couchbase Cluster using Docker Compose

October 22, 2015containers, couchbase, techtipcluster, compose, couchbase, dockerarungupta

Couchbase 4.0 provides lots of features that allows you to develop with agility and operate at any scale. Some of the features that allow you to operate at any scale are:

Elastic Scalability
Consistent High Performance
Always-On Availability
Multi-Data Center Deployment
Simple and Powerful Administration
Enterprise-grade Security

Learn more about these enterprise features at couchbase.com/operate-at-any-scale.

A complete overview is available in Couchbase Server 4.0 datasheet.

This blog will explain how you can easily setup a 3-node Couchbase Cluster using Docker Compose.

The source code and latest instructions are available at github.com/arun-gupta/docker-images/tree/master/couchbase-cluster.

Create Couchbase Nodes

Couchbase cluster can be easily created using the following Docker Compose file:

couchbase1:
  image: couchbase/server
  volumes:
    - ~/couchbase/node1:/opt/couchbase/var
couchbase2:
  image: couchbase/server
  volumes:
    - ~/couchbase/node2:/opt/couchbase/var
couchbase3:
  image: couchbase/server
  volumes:
    - ~/couchbase/node3:/opt/couchbase/var
  ports:
    - 8091:8091
    - 8092:8092 
    - 8093:8093 
    - 11210:11210

couchbase1:

image: couchbase/server

volumes:

- ~/couchbase/node1:/opt/couchbase/var

couchbase2:

image: couchbase/server

volumes:

- ~/couchbase/node2:/opt/couchbase/var

couchbase3:

image: couchbase/server

volumes:

- ~/couchbase/node3:/opt/couchbase/var

ports:

- 8091:8091

- 8092:8092

- 8093:8093

- 11210:11210

This file has service definition for three Couchbase nodes. Admin ports are exposed for only one node as other nodes will talk to each other use Docker-internally assigned IP addresses.

Create three directories ~couchbase/node1, ~couchbase/node2, ~couchbase/node3 – one for each node.

Start three Couchbase nodes as using the docker-compose.yml shown earlier:

> docker-compose up -d
Pulling couchbase1 (couchbase/server:latest)...
latest: Pulling from couchbase/server
70618b6e8070: Pull complete
05820377a11a: Pull complete
8de88a91bde5: Pull complete
61994089e28e: Pull complete
bc191c81777b: Pull complete
939d0c2514c9: Pull complete
fa75256f7885: Pull complete
7bc9fb79dd30: Pull complete
e4c99c5f6106: Pull complete
307ac999aa30: Pull complete
24eeb78ce9ab: Pull complete
c4180973b487: Pull complete
6e0c54ca80e7: Pull complete
c6d69cc874d9: Pull complete
31485a5bae7a: Pull complete
31c8df734d6b: Pull complete
Digest: sha256:0e983929897ae9bd396533ff7875f30027290c6acf164a66c967ca8884507381
Status: Downloaded newer image for couchbase/server:latest
Creating couchbasecluster_couchbase1_1
Creating couchbasecluster_couchbase3_1
Creating couchbasecluster_couchbase2_1

> docker-compose up -d

Pulling couchbase1 (couchbase/server:latest)...

latest: Pulling from couchbase/server

70618b6e8070: Pull complete

05820377a11a: Pull complete

8de88a91bde5: Pull complete

61994089e28e: Pull complete

bc191c81777b: Pull complete

939d0c2514c9: Pull complete

fa75256f7885: Pull complete

7bc9fb79dd30: Pull complete

e4c99c5f6106: Pull complete

307ac999aa30: Pull complete

24eeb78ce9ab: Pull complete

c4180973b487: Pull complete

6e0c54ca80e7: Pull complete

c6d69cc874d9: Pull complete

31485a5bae7a: Pull complete

31c8df734d6b: Pull complete

Digest: sha256:0e983929897ae9bd396533ff7875f30027290c6acf164a66c967ca8884507381

Status: Downloaded newer image for couchbase/server:latest

Creating couchbasecluster_couchbase1_1

Creating couchbasecluster_couchbase3_1

Creating couchbasecluster_couchbase2_1

This command is given on a Docker Machine.

Check status of the nodes:

> docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                                                                               NAMES
07ff4f1823a4        couchbase/server    "/entrypoint.sh couch"   5 minutes ago       Up 5 minutes        8091-8093/tcp, 11207/tcp, 11210-11211/tcp, 18091-18092/tcp                                          couchbasecluster_couchbase2_1
18f7bf07134a        couchbase/server    "/entrypoint.sh couch"   5 minutes ago       Up 5 minutes        0.0.0.0:8091-8093->8091-8093/tcp, 11207/tcp, 11211/tcp, 0.0.0.0:11210->11210/tcp, 18091-18092/tcp   couchbasecluster_couchbase3_1
4db3e1280776        couchbase/server    "/entrypoint.sh couch"   5 minutes ago       Up 5 minutes        8091-8093/tcp, 11207/tcp, 11210-11211/tcp, 18091-18092/tcp                                          couchbasecluster_couchbase1_1

> docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

07ff4f1823a4 couchbase/server "/entrypoint.sh couch" 5 minutes ago Up 5 minutes 8091-8093/tcp, 11207/tcp, 11210-11211/tcp, 18091-18092/tcp couchbasecluster_couchbase2_1

18f7bf07134a couchbase/server "/entrypoint.sh couch" 5 minutes ago Up 5 minutes 0.0.0.0:8091-8093->8091-8093/tcp, 11207/tcp, 11211/tcp, 0.0.0.0:11210->11210/tcp, 18091-18092/tcp couchbasecluster_couchbase3_1

4db3e1280776 couchbase/server "/entrypoint.sh couch" 5 minutes ago Up 5 minutes 8091-8093/tcp, 11207/tcp, 11210-11211/tcp, 18091-18092/tcp couchbasecluster_couchbase1_1

Docker Compose can also show the status:

> docker-compose ps
                 Name                                   Command                                   State                                    Ports                  
-----------------------------------------------------------------------------------------------------------------------------------------------------------------
couchbasecluster_couchbase1_1            /entrypoint.sh couchbase-s ...           Up                                       11207/tcp, 11210/tcp, 11211/tcp,       
                                                                                                                           18091/tcp, 18092/tcp, 8091/tcp,        
                                                                                                                           8092/tcp, 8093/tcp                     
couchbasecluster_couchbase2_1            /entrypoint.sh couchbase-s ...           Up                                       11207/tcp, 11210/tcp, 11211/tcp,       
                                                                                                                           18091/tcp, 18092/tcp, 8091/tcp,        
                                                                                                                           8092/tcp, 8093/tcp                     
couchbasecluster_couchbase3_1            /entrypoint.sh couchbase-s ...           Up                                       11207/tcp, 0.0.0.0:11210->11210/tcp,   
                                                                                                                           11211/tcp, 18091/tcp, 18092/tcp,       
                                                                                                                           0.0.0.0:8091->8091/tcp,                
                                                                                                                           0.0.0.0:8092->8092/tcp,                
                                                                                                                           0.0.0.0:8093->8093/tcp

> docker-compose ps

Name Command State Ports

-----------------------------------------------------------------------------------------------------------------------------------------------------------------

couchbasecluster_couchbase1_1 /entrypoint.sh couchbase-s ... Up 11207/tcp, 11210/tcp, 11211/tcp,

18091/tcp, 18092/tcp, 8091/tcp,

8092/tcp, 8093/tcp

couchbasecluster_couchbase2_1 /entrypoint.sh couchbase-s ... Up 11207/tcp, 11210/tcp, 11211/tcp,

18091/tcp, 18092/tcp, 8091/tcp,

8092/tcp, 8093/tcp

couchbasecluster_couchbase3_1 /entrypoint.sh couchbase-s ... Up 11207/tcp, 0.0.0.0:11210->11210/tcp,

11211/tcp, 18091/tcp, 18092/tcp,

0.0.0.0:8091->8091/tcp,

0.0.0.0:8092->8092/tcp,

0.0.0.0:8093->8093/tcp

Check logs of the nodes:

> docker-compose logs
Attaching to couchbasecluster_couchbase2_1, couchbasecluster_couchbase3_1, couchbasecluster_couchbase1_1
couchbase2_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091
couchbase3_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091
couchbase1_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091

> docker-compose logs

Attaching to couchbasecluster_couchbase2_1, couchbasecluster_couchbase3_1, couchbasecluster_couchbase1_1

couchbase2_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091

couchbase3_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091

couchbase1_1 | Starting Couchbase Server -- Web UI available at http://<ip>:8091

Configure Couchbase Cluster

Lets configure these nodes to be part of a cluster now.

Find IP address of the Docker Machine:

> docker-machine ip default
192.168.99.104

> docker-machine ip default

192.168.99.104

Access Couchbase Admin Console at http://<DOCKER_MACHINE_IP:8091. This is http://192.168.99.104:8091 in our case. It will show the output as:

Click on “Setup”.

Each container is given an internal IP address by Docker, and each of these IPs is visible to all other containers running on the same host. We need to use these internal IP address when adding a new node to the cluster.Find IP address of the first container:

> docker inspect --format '{{ .NetworkSettings.IPAddress }}' couchbasecluster_couchbase3_1
172.17.0.2

> docker inspect --format '{{ .NetworkSettings.IPAddress }}' couchbasecluster_couchbase3_1

172.17.0.2

Use this IP address to change the Hostname field:

Click on “Next”. Adjust the RAM if necessary. Read more about Couchbase Cluster Settings.
Pick a sample bucket that you’d like to get installed, and click on Next.
Change Per Node RAM Quota from 400 to 100. This is required as we’ll add other nodes later.
Click on Next, accept T&C, and click on Next.
Enter a password that you can remember as we’ll need this later to add more nodes.

Default view of the cluster looks like as shown:

Add More Couchbase Nodes

Now, lets add the other two nodes that were created earlier by Docker Compose.

Click on “Server Nodes” to see the default view as:

Find IP address of one of the remaining nodes:

docker inspect --format '{{ .NetworkSettings.IPAddress }}' couchbasecluster_couchbase1_1
172.17.0.1

docker inspect --format '{{ .NetworkSettings.IPAddress }}' couchbasecluster_couchbase1_1

172.17.0.1

Click on “Add Server”, specify the IP address:

and click on “Add Server”.
Repeat the previous two steps with the server name couchbasecluster_couchbase2_1.

Couchbase Cluster Rebalance

A cluster needs to be rebalanced to ensured that the data is well distributed amongst the newly added or removed nodes. Read more about Couchbase Cluster Rebalance.

Clicking on “Pending Rebalance” tab shows the nodes that have been added to the cluster but are not rebalanced yet:

Click on “Rebalance” and this will automatically rebalance the cluster:

You just deployed a Couchbase cluster using Docker Compose, enjoy!

Some more references:

Couchbase 4 Administration Guide
Couchbase 4 Server Architecture
Couchbase 4 Cluster Setup

Why Couchbase over MongoDB? #SayNoToMongoDB

October 21, 2015couchbasecouchbase, mongodb, nosqlarungupta

MongoDB is one of the most popular NoSQL databases. Its easy to start, has good documentation, works well with a few nodes. But it starts to fall apart as the number of users increase or more nodes are added.

Do you keep struggling with MongoDB? Thought about Couchbase over MongoDB? But don’t know where to start.

Why are companies switching from MongoDB to Couchbase?

MongoDB is hard to scale from a single replica set to a fully sharded environment
MongoDB’s performance rapidly degrades with increasing users
MongoDB is significantly susceptible to data loss under failure
MongoDB requires a third-party cache to help it perform
When deployed in multiple geographies, MongoDB can’t perform all writes locally
MongoDB lacks a mobile solution
MongoDB is time-consuming to manage and maintain

Read how Couchbase avoids all of these problems in Struggling With MongoDB.

Couchbase vs MongoDB Architectural Differences and Their Impact whitepaper provide more details.

Talk to a Couchbase Solutions Engineer and learn if/how Couchbase can yield better results for your non-performing MongoDB.

Some more useful references:

NoSQL Evaluation Guide
Getting Started with Couchbase
FREE Online Training for NoSQL and Couchbase
Couchbase Developer Portal

Viber replaced MongoDB with 50% fewer Couchbase servers. AT&T, Comcast, eBay, GE, LinkedIn, Marriott, PayPal, Tesco, Verizon, VISA, Wells Fargo and many other customers are using Couchbase.

You can too! Why wait?

#MakeTheSwitch and #SayNoToMongoDB!

Couchbase at JavaOne 2015

October 16, 2015conferences, couchbase, javacouchbase, javaonearungupta

JavaOne 2015 is just a couple of weeks away. Why you should attend?

450+ sessions over a wide variety of topics around Java
5 days of geekgasm with toys, technology, and discussions
Best of the best developers gather here
Special 20th edition of the event is going to be cherished for ever
Venue is the most lovely city in the world – San Francisco!

Couchbase, one of the leading open-source, NoSQL, document datastore company is going to be there with a few talks. Here is where you’ll find us:

Saturday, Oct 24

JavaOne4Kids Day – Arun Gupta (@arungupta)
5pm – 8pm: Chinascaria (invite only)
7pm – 11:30pm: NetBeans Party (invite only)

Sunday, Oct 25

8am – 9:30am: Java Champions/JUG Leaders Brunch – Arun Gupta (@arungupta)
6:30pm – 7:30pm: WildFly, Hadoop, JavaFX and HTML5 in the Enterprise (UGF10306) – Arun Gupta (@arungupta)
8pm – 10pm: NetBeans, GlassFish, and Payara Party (Thirsty Bear)

Monday, Oct 26

8:30am – 10:30am: Docker and Kubernetes Recipes for Java Developers (TUT1708) – Arun Gupta (@arungupta)
12:30pm – 1:30pm: Refactor your Java EE Applications with Microservices and Containers (CON1700) – Arun Gupta (@arungupta)

Tuesday, Oct 27

12:30pm – 1:30pm: Build Scalable And Secure Mobiles with Java That Work Offline (CON11281) – Wayne Carter (@waynecarter), Ali LeClerc (@ali_leclerc)
5:15pm – 7:15pm: JavaOne Ignite – Arun Gupta (@arungupta)

Wednesday, Oct 28

4:30pm – 5:30pm: SQL for JSON: Rich, Declarative Querying for NoSQL Databases and Applications (CON11282) – Keshav Murthy (@rkeshavmurthy), Gerald Sangudi (@sangudi)

Of course, we’ll also be running the “hallway track” and so feel free to meet us there.

8 Things About Couchbase is a good place to start learning about Couchbase!

If you’ve any doubts about San Francisco being the most beautiful city, go visit Golden Gate, Fisherman’s Wharf, Crooked Street, Alcatraz Island, Cable cars, Chinatown, MOMA, and much more

Couchbase 4.0 Datasheets – Server, N1QL, Multi-dimensional Scaling

October 14, 2015couchbasecouchbase, nosqlarungupta

Couchbase Server 4.0 was released recently and getting good reviews so far.

Couchbase Datasheets

Are you looking for Couchbase datasheets that provide a quick overview of the key features?

Now you’ve them!

Couchbase Server 4.0 – Develop with Agility, Operate at Any Scale
What’s New – N1QL, Multi-dimensionsal Scaling, Global Secondary Indexes, Enhanced Security, ForestDB Storage Engine, Cross-Data Center Replication Filtering, Geospatial views, and much more
N1QL
Multi-Dimensional Scaling

Download Couchbase Server 4.0 and start building your web, mobile, and IoT applications in a true polyglot fashion using Java, Go, Python, .NET, PHP, or Node.js SDKs.

Complete list at Couchbase Server.

Enjoy!

Getting Started with Couchbase using Docker

October 12, 2015containers, couchbase, techtipcouchbase, docker, nosqlarungupta

Couchbase Server 4.0 was recently released and can be downloaded and easily installed. Getting Started with Couchbase explains in very simple and easy steps on how to get started with Couchbase. But when living in a container world, everything is a Docker image. And Couchbase also has a Docker image.

This blog will explain how you can easily start a Couchbase Server 4.0 as a Docker image.

Install and Configure Docker

Docker is natively supported on Linux. So apt get docker-engine on Ubuntu or yum install docker-engine on CentOS will get you ready to use Docker.

On Mac or Windows, this is achieved by install Docker Machine. Docker Machine to Setup Docker Host explain in detail on how to install and configure Docker Machine.

Here is a brief summary to get you started with Docker:

Download Docker client:

> curl -L https://get.docker.com/builds/Darwin/x86_64/docker-1.8.3 > /usr/local/bin/docker
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 8664k  100 8664k    0     0  4139k      0  0:00:02  0:00:02 --:--:-- 4139k
> chmod +x /usr/local/bin/docker

> curl -L https://get.docker.com/builds/Darwin/x86_64/docker-1.8.3 > /usr/local/bin/docker

% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

100 8664k 100 8664k 0 0 4139k 0 0:00:02 0:00:02 --:--:-- 4139k

> chmod +x /usr/local/bin/docker

Download Docker Machine script:

> curl -L https://github.com/docker/machine/releases/download/v0.4.1/docker-machine_darwin-amd64 > /usr/local/bin/docker-machine
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   586    0   586    0     0   1103      0 --:--:-- --:--:-- --:--:--  1103
100 11.8M  100 11.8M    0     0  2733k      0  0:00:04  0:00:04 --:--:-- 3458k
> chmod +x /usr/local/bin/docker-machine

> curl -L https://github.com/docker/machine/releases/download/v0.4.1/docker-machine_darwin-amd64 > /usr/local/bin/docker-machine

% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

100 586 0 586 0 0 1103 0 --:--:-- --:--:-- --:--:-- 1103

100 11.8M 100 11.8M 0 0 2733k 0 0:00:04 0:00:04 --:--:-- 3458k

> chmod +x /usr/local/bin/docker-machine

Create Docker Machine host:

> docker-machine create --driver=virtualbox default
Creating VirtualBox VM...
Creating SSH key...
Starting VirtualBox VM...
Starting VM...
To see how to connect Docker to this machine, run: docker-machine env default

> docker-machine create --driver=virtualbox default

Creating VirtualBox VM...

Creating SSH key...

Starting VirtualBox VM...

Starting VM...

To see how to connect Docker to this machine, run: docker-machine env default

Setup Docker client to connect to this host:

> eval $(docker-machine env default)

> eval $(docker-machine env default)

Now your current shell is configured where the Docker client can run containers on the Docker Machine.

Run Couchbase Docker Container

Starting a Docker container on this machine is pretty straight forward. The CLI downloads the image from Docker Hub and then runs it on the Machine:

> docker run -d -p 8091:8091 couchbase
Unable to find image 'couchbase:latest' locally
latest: Pulling from library/couchbase
ba2b457ecfb2: Pull complete 
26180b0fe8fb: Pull complete 
edd7c1974a70: Pull complete 
57bca5139a13: Pull complete 
5eb89c4f7e1a: Pull complete 
46b6bac823d2: Pull complete 
6845430f4274: Pull complete 
92d9ea0b826c: Pull complete 
c02a4d9a78c4: Pull complete 
904ac92614ac: Pull complete 
e924e7d4b1dc: Pull complete 
bbe8a967cf05: Pull complete 
35fb2c30481e: Pull complete 
68eb883fd0c7: Pull complete 
fe1b3bdb1e2f: Pull complete 
library/couchbase:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.
Digest: sha256:388b710593a7a643c49bf38c4b16eb8e175dccac093e9aa8dea5bd2e2d326efd
Status: Downloaded newer image for couchbase:latest
5b789d2319486ce8a4a4d6a866d8212dde1464601451b9a84a8d3bf80e8aa935

> docker run -d -p 8091:8091 couchbase

Unable to find image 'couchbase:latest' locally

latest: Pulling from library/couchbase

ba2b457ecfb2: Pull complete

26180b0fe8fb: Pull complete

edd7c1974a70: Pull complete

57bca5139a13: Pull complete

5eb89c4f7e1a: Pull complete

46b6bac823d2: Pull complete

6845430f4274: Pull complete

92d9ea0b826c: Pull complete

c02a4d9a78c4: Pull complete

904ac92614ac: Pull complete

e924e7d4b1dc: Pull complete

bbe8a967cf05: Pull complete

35fb2c30481e: Pull complete

68eb883fd0c7: Pull complete

fe1b3bdb1e2f: Pull complete

library/couchbase:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.

Digest: sha256:388b710593a7a643c49bf38c4b16eb8e175dccac093e9aa8dea5bd2e2d326efd

Status: Downloaded newer image for couchbase:latest

5b789d2319486ce8a4a4d6a866d8212dde1464601451b9a84a8d3bf80e8aa935

In this CLI, run command runs the container using the image id specified as the last argument, -p publish port 8091 from the container to 8091 on the Docker Machine, -d runs the container in background and prints the container id.

Watch the container status as:

> docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                                                                           NAMES
5b789d231948        couchbase           "/entrypoint.sh couch"   7 minutes ago       Up 7 minutes        8092/tcp, 11207/tcp, 11210-11211/tcp, 0.0.0.0:8091->8091/tcp, 18091-18092/tcp   sick_yonath

> docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

5b789d231948 couchbase "/entrypoint.sh couch" 7 minutes ago Up 7 minutes 8092/tcp, 11207/tcp, 11210-11211/tcp, 0.0.0.0:8091->8091/tcp, 18091-18092/tcp sick_yonath

Find out IP address of the Docker Machine:

> docker-machine ip default
192.168.99.100

> docker-machine ip default

192.168.99.100

Access the setup console at 192.168.99.100:8091, make sure to specify the exact IP address in your case. This will show the screen:

Configure Couchbase Server

First run of Couchbase Server requires you to configure it, lets do that next!

Click on the Setup button. Scroll to bottom of the screen, change the Data RAM Quota to 500 (MB-16530), and click on Next.
In Couchbase, data is stored in buckets. The server comes pre-installed with some sample buckets. Select the travel-sample bucket to install it and click on Next.
Configure the bucket by taking defaults:

Click on Next.
Enter personal details, agree to T&C, click on Next:
Provide administrator credentials:
Click on Next to complete the installation. This brings up Couchbase Web Console:

It takes a few seconds for the travel-sample bucket to be fully loaded. And once that is done, your Couchbase server is ready to roll!

You can also watch the following presentation from Couchbase Connect:

Talk to us at Couchbase Forums or @couchbase.

We Are Hiring a Couchbase Developer Advocate

October 10, 2015couchbasearungupta

Couchbase, a leading, open source, NoSQL database company to power your Digital Economy, is hiring a Developer Advocate.

Apply now!

What is a Couchbase Developer Advocate?

Couchbase Developer Advocate helps other developers be effective users of NoSQL and Couchbase products.

What does a Developer Advocate do?

Developer Advocate role has become quite common for the past few years now, and here are some of the responsibilities:

Content is king! A Developer Advocate creates lots and lots of content. This could be blogs, samples, screencasts, webinars, tutorials, and a lot more. This helps you understand the product better, makes you genuine, builds credibility, and you also feel the developer pain points (and file them in issue tracker).
Try latest release of the product and create demos, samples and presentations explaining different features in simple terms
Actively write blogs and engage on social media (Twitter, Forums, etc)
Author books and articles on third-party websites
Prepare hands-on lab / workshops and deliver them
Work with multiple languages and frameworks
Work as a two-way channel, from inside the company to developers outside and vice versa
Speak at different events around the world
Constantly seek champions within community and encourage them to be advocate for your technology
Are, or become, thought leaders in their topic
We are all geeks at heart and like playing with technology

A Couchbase Developer Advocate will play all these roles.

Think of yourself as a swiss army knife that can play different roles at different times!

Does a Developer Advocate code?

Hell yeah!

One of the common myth about the role is that it does not involve coding.

Let me clarify that, at least at Couchbase, this is a very coding intensive role. We expect 50% of your time, may be more, will be spent creating top notch content that requires extensive coding and playing with the bleeding edge frameworks.

At Couchbase, some of these tasks are:

Try out a JavaScript framework and see how it integrates with Couchbase
Figure out how to make Couchbase work with a new application server
Investigate N1QL integration with any technology or framework that can produce JSON
Work with different cloud providers and show Couchbase hosting there
Show (or create) integration of Couchbase with different tools like NetBeans, Eclipse, and IntelliJ. Or Maven, Gradle, Ant, or whatever developers want to use.
Hack code or discuss architecture/design of the product with other engineers

And once the content is ready, then you spread the message around the world.

I’ve been building developer communities for 10+ years now, and to date its been a very satisfying and extremely joyful experience!

Why Couchbase is the right company?

NoSQL is going to be an essential component for companies going through Digital Transformation. The flexibility, scalability, agility, and performance offered by NoSQL database is not available in traditional and structured RBDMS.

Couchbase 4.0, recently announced, is highly scalable and getting great enterprise adoption. With innovative features like N1QL and multi-dimensional scaling, we are very well positioned to significantly leapfrog competition in developer adoption.

This is a huge opportunity to join Couchbase, and shape the NoSQL industry for the years to come. Some more articles to help you validate this positioning:

NoSQL isn’t hip any more (InfoWorld)
How Couchbase is cranking up its developer appeal (ZDNet)
Couchbase Server 4.0 Significantly Expands Usecases with N1QL and Multi-Dimensional Scaling (Database Trends & Applications)
Couchbase Passes MongoDB in Functionality (Datanami)
Couchbase, Time to take a seat? (Constellation Research)

Conclusion

Overall, Couchbase Developer Advocate is going to help companies go through Digital Transformation and become an industry leader by working with the best in the industry.

So, don’t wait and apply for Couchbase Developer Advocate position today!

8 Things to know about Couchbase

October 8, 2015couchbasecouchbasearungupta

This freshly minted Couchbase Badge shows 8 most important aspects of Couchbase. Starting from the top-left in a clockwise fashion:

N1QL is a comprehensive, declarative query language that brings SQL-like query capabilities to JSON documents.
Source code is fully open sourced under Apache 2.0 License
Very easy to start, extensive documentation, free training makes it easy for developers to get started
GeoJSON
Couchbase 4.0 introduces innovative multi-dimensional scaling that enables to separate, isolate, and scale individual services – Query, Index, and Data – to improve application performance and resource utilization. This is in contrast to one-size-fits-all approach used by other NoSQL vendors.
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Couchbase Server 4.0 was released earlier this week, download now!

We’ll soon be coming at an event closer to you with tshirts and other swag printed with these badges!

Couchbase 4.0 Server: N1QL (SQL + JSON), Multi-dimensional scaling, Global secondary index, more

October 6, 2015conferences, couchbasecouchbasearungupta

Couchbase is an open source, document-oriented NoSQL database for modern web, mobile, and IoT applications. It is designed for ease of development and Internet-scale performance.

Couchbase 4.0 is a major release of the NoSQL database server that includes significant advances in both architecture and features.

Download Couchbase Server 4.0 now!

The key features introduced in this version are:

N1QL (pronounced “nickel”): SQL-compatible query language for JSON documents
Multi-dimensional Scaling (MDS): Allows enterprises to isolate different workloads and independently scale the index, query, and data services.
Global Secondary Index: is a new access path to your data for faster lookup and higher throughput
Enhanced Security: Simplified compliance with security standards, LDAP integration, and auditing capabilities
Geospatial Indexes for location-aware applications
ForestDB, a new database engine
New filtering capabilities on Cross Data Center Replication (XDCR) allowing specific data to be replicated to specific geographical locations

With MDS and N1QL, Couchbase 4.0 becomes the first and only database to combine the powerful query capabilities of a relational database with the performance, scalability, and flexibility of a NoSQL database.

This is in addition to already an existing set of impressive features:

Developer-Focused
Consistent High Performance
Elastic Scalability
Always-On Availability
Enterprise Grade Administration
Data Mobility

and a lot more. Read more details each of these features in About Couchbase Server or Announcing Couchbase Server 4.0.

Lets look at some of the major features introduced in this version.

N1QL = SQL + JSON

N1QL is a comprehensive, declarative query language that brings SQL-like query capabilities to JSON documents. N1QL provides a rich set of features that let you retrieve, manipulate, transform, and create JSON document data.

N1QL Logo

Common SQL statements such as SELECT statement, Data Manipulation Language (DELETE, INSERT, UPDATE, UPSERT), Indexes, Primary Key Access, Aggregations, Joins, Nesting, Unions, Sub-queries, Union, Intersect, and much more can now be applied to JSON. Just use your knowledge of SQL and apply it to JSON documents.

The following query:

SELECT fname, age 
FROM tutorial
WHERE age > 30

SELECT fname, age

FROM tutorial

WHERE age > 30

will give the result as:

{
  "results": [
    {
      "age": 46,
      "fname": "Dave"
    },
    {
      "age": 46,
      "fname": "Earl"
    },
    {
      "age": 56,
      "fname": "Ian"
    },
    {
      "age": 40,
      "fname": "Jane"
    }
  ]
}

{

"results": [

{

"age": 46,

"fname": "Dave"

{

"age": 46,

"fname": "Earl"

{

"age": 56,

"fname": "Ian"

{

"age": 40,

"fname": "Jane"

}

]

}

Try yourself in this interactive N1QL tutorial.

A later blog will show how to get started with N1QL using Couchbase 4.0. But in the meanwhile, here are some resources to get started with N1QL:

Interactive N1QL Tutorial is an online interactive tutorial that runs in a browser and allows you to learn about N1QL without having Couchbase Server installed in your own environment. The tutorial covers SELECT statements in detail, including examples of JOIN, NEST, GROUP BY, and other typical clauses.
N1QL Cheat Sheet provides a concise summary of the basic syntax elements.
N1QL Reference Guide contains details about N1QL syntax and usage.
N1QL Forums or N1QL at Stackoverflow is a community resource where you can ask questions, find answers, and discuss N1QL with other developers and the Couchbase team.

Difference between SQL and N1QL highlights the key difference between two.

N1QL has full compatibility with the SQL ecosystem via connectors and standard JDBC/ODBC drivers. This allows enterprises for the first time to connect popular ETL, reporting, and BI tools to Couchbase. Companies like Databricks, Looker, Simba Technologies, Informatica, Tableau, and Metanautix are all partnering with Couchbase to provide supported integrations.

Multi-dimensional Scaling

Query, Index, and Data are the three key database services. Query is CPU-intensive operation and so require a faster processor. Index is disk heavy and so require a faster solid state drive. Data needs to be read/written fast and so require more memory.

The needs for these services is quite different but yet existing databases put them together on a single node causing resource contention. For example, storing data and executing queries on the same node will cause CPU contention. Similarly, storing data and indexes on the same node will cause disk IO contention. There is network over head if a query needs to run by distributing to every node or an index needs to be stored on every node.

Couchbase 4.0 introduces innovative multi-dimensional scaling that enables to separate, isolate, and scale individual services – Query, Index, and Data – to improve application performance and resource utilization. This is in contrast to one-size-fits-all approach used by other NoSQL vendors.

Multi Dimensional Scaling in Couchbase

This is quite different from Oracle, MongoDB and Cassandra’s one-size-fits-all one dimensional scaling. It helps in improved performance, reduced hardware costs, and enables enterprises to support a much broader set of applications with a single database: Couchbase Server.

http://www.couchbase.com/press-releases/database-scaling-redefined-by-couchbase-multi-dimensional-scaling-outperforms-one-dimensional-scale-limitations-of-oracle-mongodb-and-cassandra

Global Secondary Index

Traditional local secondary indexes reside with data on every node of a Couchbase cluster. They’re great when you need to query all of the data, but because they query every node every time — even to return data that’s stored on a subset of the nodes — performance gets worse as the number of nodes increases.

Global Secondary Indexes (GSI) provide a new access path to your data for faster lookup and higher throughput. It’s a global index, so index lookup is much easier — there’s no need to query a local index on each data node and aggregate the results.

Learn more about GSI in this presentation from Couchbase Connect 2015:

Subsequent blogs will provide more details about each of these features and how to use them.

Here are some top-level links for you to get started:

Download Couchbase Server 4.0
Release Notes
Step-by-step Getting Started Guide
Developer Guide using SDKs with Java, Go, C, Node.JS, .NET, PHP, Python, and Ruby
Online, classroom, virtual, on-site training at training.couchbase.com

Here is some media coverage:

Couchbase Releases V4 of NoSQL Database
Couchbase 4.0 released, adds multi dimensional scaling and more
Couchbase Makes Case for Enterprise-Class Document Database
How Couchbase 4.0 is cranking up its developer appeal
Couchbase announces general availability of its 4.0 Release: Introduces breakthrough developer agility and scaling innovations enabling broad enterprise re-platforming
SQL on NoSQL? Couchbase 4.0 has a plan
Couchbase Passes MongoDB in Functionality, CEO Claims
Couchbase Server 4.0 Lets SQL Users Take A Seat
Simba Technologies Introduces ODBC, JDBC Drivers for Couchbase Server 4.0
How to Setup Couchbase as a Linked Server in Microsoft SQL Server
Couchbase Server 4.0 opens the door to SQL on NoSQL

Couchbase Server 4.0 – Develop with Agility and Operate at any Scale.

Miles to go 4.0 …

Arun Gupta is a technology enthusiast, avid runner, author of a best-selling book, globe trotter, a community guy, Java Champion, JavaOne Rockstar, JUG Leader, Minecraft Modder, NetBeans Dream Teamer, Devoxx4Kids-er, Docker Captain and works at AWS.

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Couchbase 4.0 Server: N1QL (SQL + JSON), Multi-dimensional scaling, Global secondary index, more

N1QL = SQL + JSON

Multi-dimensional Scaling

Global Secondary Index