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Byte by Byte Impressions on Technology, People and Process !
Fixing “SSL handshake failed: SSL error: Key usage violation in certificate has been detected.” error on SVN checkout
This one solved it for me http://dionysus.uraganov.net/software/fixing-%E2%80%9Cssl-handshake-failed-ssl-error-key-usage-violation-in-certificate-has-been-detected-%E2%80%9D-error-on-svn-checkout/
Posted in: Java
QuckTip: Tagging your code on git
December 8, 2011
For Tagging >git tag -a v1.4 -m ‘version 1.4’ For viewing the tag >git tag For pushing it for everyone >git push --tags For tagging an existing commit > git tag -a v1.2 9fceb02 <start of the changeset code> For fetching tags from repository > git fetch --tags
Posted in: Java
QuickTip: Limiting the number of rows returned by MySQL. Pagination
November 15, 2011
If you would like to get a row num, you would have to do something like this for getting it in the right order or simply For limiting the number of rows however, there is the LIMIT keyword [bash] mysql> select * from CODE_PANEL_DETAIL limit 1,4; +———————-+—————+——+—————————–+——————–+ | CODE_PANEL_DETAIL_ID | CODE_PANEL_ID | CODE | CODE_TYPE […]
Posted in: Java
QuickTip: VerifyError with jdk 7
October 9, 2011
If you are struggling with the following kind of error java.lang.VerifyError: Expecting a stackmap frame at branch target 6 bla bla bla …. then a simple solution is to add the following default JVM argument -XX:-UseSplitVerifier If you are doing it in eclipse, like i was, then goto Window -> Preferences -> Installed JREs -> […]
Posted in: Java
Power of Parallel Processing in Akka
September 19, 2011
If you have been following the Inphina blog and our work with Scala related technologies, you would have noticed a spurt in our blog feeds. The reason being that we have recently come out of a very successful massively scalable framework created with Akka. Inphina holds an active stake in the product and the details […]
Posted in: Scala
AMQP and AKKA
September 15, 2011
AMQP is a message protocol that deals with publishers and consumers. It would look a lot like JMS but it is not. The main entities are Exchanges, Queues and Bindings. Look at the following diagram So a producer would send a message to the exchange and it is the job of the message broker (RabbitMQ […]
Posted in: Architecture, Scala
Building a Plugin Based Architecture in Scala
September 15, 2011
A plugin based architecture has many advantages. Some of the common ones include Extending an application’s functionality without compiling it again Adding functionality without requiring access to the original source code. Replacing or adding new functionality becomes easy Help in organizing large projects Help in extending the functionality of the system to unimagined areas. I […]
Posted in: Architecture, Scala
QuickTip: Ignoring some jars from getting assembled in SBT 0.10x
September 1, 2011
We are using sbt-onejar and as expected but not intended all the jars along with thier transitive dependencies were getting included in the jar. This was giving us several warnings like JarClassLoader: Warning: org/hamcrest/BaseDescription.class in lib/mockito-all-1.8.5.jar is hidden by lib/junit-4.7.jar (with different bytecode) JarClassLoader: Warning: org/hamcrest/BaseMatcher.class in lib/mockito-all-1.8.5.jar is hidden by lib/junit-4.7.jar (with different bytecode) […]
Posted in: Java
Akka Actors on Mac beating the S#!t Out of my Dell
August 26, 2011
Let me explain the scenario. We have n (tens, hundreds or thousands) of Akka actors listening to a queue on RabbitMQ server. So the scenario looks something like this As you would notice, each of the actors gets a message from the Q and invokes a plugin to do the processing and returns the results […]
Posted in: Scala
Vikas Hazrati
c0nnexx10n : C0nnect1ng L1fe w1th Techn010gy 
April 11, 2012
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