ramraje.com http://www.ramraje.com Software Programming Blog Mon, 02 Nov 2009 06:07:21 +0000 http://wordpress.org/?v=2.7 en hourly 1 Daily English Vocabulary 4: Tenebrous http://www.ramraje.com/english/daily-vocabulary/daily-english-vocabulary-4-tenebrous/ http://www.ramraje.com/english/daily-vocabulary/daily-english-vocabulary-4-tenebrous/#comments Mon, 02 Nov 2009 06:07:21 +0000 Ramraj Edagutti http://www.ramraje.com/?p=272 Tenebrous  (te-neb-ree-uhs) adj.

Tenebrous meanings

  • Dark
  • Gloomy
  • Full of darkness

Example: A tenebrous or dark cave

To learn more go to tenebrous

]]> http://www.ramraje.com/english/daily-vocabulary/daily-english-vocabulary-4-tenebrous/feed/ where is the Eclipse error log location? http://www.ramraje.com/java-j2ee/eclipse/where-is-the-eclipse-error-log-location/ http://www.ramraje.com/java-j2ee/eclipse/where-is-the-eclipse-error-log-location/#comments Tue, 27 Oct 2009 12:52:39 +0000 Ramraj Edagutti http://www.ramraje.com/?p=265 Today I supposed to pull latest code  from perforce source control system and set up the project in eclipse and test it whether it is working or not. I finished setting up the project and published the all projects to eclipse tomcat directory, while starting the tomcat I was getting below error

Server Tomcat v5.5 Server at localhost failed to start.

And I was trying to find the reason for failing, and want to see the eclipse error logs. At this point of time I was not very sure about where the logs are kept for eclipse internal errors or eclipse exception stack trace. Then tried looking here and there in the eclipse, and finally found.

  1. Go to the pulg-in development perspective from open perspective at top right side.
  2. Then you would be able to see Error log tab at bottom side of eclipse.
  3. In Error log tab you can find the all eclipse errors.
  4. Double click on the error to see more information

You can also do below to see the Error log tab
Go to Window --> Show view --> General --> Error log

To see more detailed error log information about eclipse internal errors or eclipse plug-in errors go to your {workspace-folder}/.metadata/.log file.

]]> http://www.ramraje.com/java-j2ee/eclipse/where-is-the-eclipse-error-log-location/feed/ How to choose a portfolio http://www.ramraje.com/interesting-stuff/finance/how-to-choose-a-portfolio/ http://www.ramraje.com/interesting-stuff/finance/how-to-choose-a-portfolio/#comments Thu, 22 Oct 2009 12:27:40 +0000 Ramraj Edagutti http://www.ramraje.com/?p=255 It’s very important for every investor to  allocate broad categories of stocks, bonds - both corporate and government etc. It could be little time consuming cause this needs  market technical analysis and research, to be derived based on investment objectives and needs, risk taking capability and time horizon. This portfolio should be rebalanced as and when there is a signification change in the value of your assets in your kitty.

Read the full article at MeraFinance.com

]]> http://www.ramraje.com/interesting-stuff/finance/how-to-choose-a-portfolio/feed/ Income Tax Calculation Examples http://www.ramraje.com/interesting-stuff/finance/income-tax-calculation-examples/ http://www.ramraje.com/interesting-stuff/finance/income-tax-calculation-examples/#comments Thu, 22 Oct 2009 12:20:57 +0000 Ramraj Edagutti http://www.ramraje.com/?p=253 We often get confused on how to calculate income tax, and how much we need to pay to the Indian income tax organization every year. And we most of the time depend on financial experts or income tax brokers to calculate our taxable income and then we will pay the income tax.

Here is the simple technique or example on how to calculate your own taxable income. Check it out here

]]> http://www.ramraje.com/interesting-stuff/finance/income-tax-calculation-examples/feed/ Will the indian market grow or shrink, find out? http://www.ramraje.com/interesting-stuff/finance/will-the-indian-market-grow-or-shrink-find-out/ http://www.ramraje.com/interesting-stuff/finance/will-the-indian-market-grow-or-shrink-find-out/#comments Thu, 22 Oct 2009 12:12:32 +0000 Ramraj Edagutti http://www.ramraje.com/?p=251 Market is driven by investors who are investing in companies that contributes to an index like Sensex. These investors does great research on various parameters like past performance, projected performance etc. And this performance is linked to customers/consumers of that company’s product/services. So if the consumer confidence index (CSI) is good then market tends to grow better.

Read the complete article at merafinance.com

]]> http://www.ramraje.com/interesting-stuff/finance/will-the-indian-market-grow-or-shrink-find-out/feed/ Daily English Vocabulary 3: Foofaraw http://www.ramraje.com/english/daily-vocabulary/daily-vocabulary-3-foofaraw/ http://www.ramraje.com/english/daily-vocabulary/daily-vocabulary-3-foofaraw/#comments Thu, 08 Oct 2009 03:42:51 +0000 Ramraj Edagutti http://www.ramraje.com/?p=247 Foofaraw (foo-fuh-ro)

Below are the meanings for Foofaraw

  1. Too much of decoration or ornamentation
  2. A fuss or disturbance over little important matters
]]> http://www.ramraje.com/english/daily-vocabulary/daily-vocabulary-3-foofaraw/feed/ java.net.SocketException: Connection reset by peer, socket write error http://www.ramraje.com/java-j2ee/java-errors-solutions/javanetsocketexception-connection-reset-by-peer-socket-write-error/ http://www.ramraje.com/java-j2ee/java-errors-solutions/javanetsocketexception-connection-reset-by-peer-socket-write-error/#comments Sun, 04 Oct 2009 17:22:17 +0000 Ramraj Edagutti http://www.ramraje.com/?p=241 I am getting this socket connection error in my java web application, which was working very well for long time. I did see this behaviour when I ran huge batch of database insertions/updates. Below is the java stacktrace of this error.

ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error
  1.  at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:327)
  2.  at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:293)
  3.  at org.apache.catalina.connector.Response.flushBuffer(Response.java:545)
  4.  at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:287)
  5.  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
  6.  at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
  7.  at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
  8.  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
  9.  at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
  10.  at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
  11.  at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
  12.  at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
  13.  at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
  14.  at java.lang.Thread.run(Thread.java:595)

Usually, this kind of behaviour occurs when one of the following happens

  1. When user make a request, and suddenly browser get closed by user accidentally or due to browser crash
  2. When user make a request, and browser closes the http connection automatically due to exceeded content length size
  3. When user make a request, and presses the stop button

But surprisingly, there is one more reason which may cause this  problem. This is more unpredictable and very difficult to identify as well, that is problem with firewall.  When googled, I founded people complaining about firewall closing database connection automatically.  On top of this I am also not getting proper java exception stacktrace to track the error and fix.

To elaborate more on firewall issue, the error is more TCP/IP connection level error where database is closed by the firewall after database connection are idle for certain time or certain db connection length. Possibility is that there is a statefull firewall which is closing database connections after certain time limit. I am still in the process of identifying what could be the real problem. Once I found real probelm and solution, I will post it in here. If any one know the solutions, please post it in the comments section. Thank you.

]]> http://www.ramraje.com/java-j2ee/java-errors-solutions/javanetsocketexception-connection-reset-by-peer-socket-write-error/feed/ How to say “never mind” http://www.ramraje.com/english/daily-english/how-to-say-never-mind/ http://www.ramraje.com/english/daily-english/how-to-say-never-mind/#comments Thu, 06 Aug 2009 11:38:12 +0000 Ramraj Edagutti http://www.ramraje.com/?p=182 Till today, I had a wrong perception on how to and when to use “never mind” idiom. While I was asking a favour to my friend, I said, “Never mind for asking this favour”.  Immediately, my friend told me don’t use ‘never mind’ here in this situation, use ‘do not mind’ instead. Then, I thought of googling what exactly this ‘never mind’ means. So, here is what learned about this idiom.

Never mind means

  • Don not worry about something
  • Don not worry about someone
  • Don not consider something or someone
  • Don’t trouble yourself
  • It does not matter
  • Do not concern yourself with something or someone

Example sentences for “never mind”

  1. You lost the cellphone again!, well, never mind, I can buy you another one.
  2. Never mind, all your problems will sort out.
  3. Never mind, he is not a bad guy.
]]> http://www.ramraje.com/english/daily-english/how-to-say-never-mind/feed/ Daily Enlish Vocabulary 2: Aplomb http://www.ramraje.com/english/daily-vocabulary/todays-enlish-vocabulary-aplomb/ http://www.ramraje.com/english/daily-vocabulary/todays-enlish-vocabulary-aplomb/#comments Fri, 31 Jul 2009 06:47:52 +0000 Ramraj Edagutti http://www.ramraje.com/?p=177 Aplomb (a-plomb or uh-plom):

Below are the meanings for Aplomb

  • Confindent
  • Coolness
  • assurance

Synonyms

  • Composure
  • Equanimity
  • Imperturbability
]]> http://www.ramraje.com/english/daily-vocabulary/todays-enlish-vocabulary-aplomb/feed/ How to find installed RPM software packages http://www.ramraje.com/linux/how-to-find-installed-rpm-software-packages/ http://www.ramraje.com/linux/how-to-find-installed-rpm-software-packages/#comments Tue, 21 Jul 2009 06:15:24 +0000 Ramraj Edagutti http://www.ramraje.com/?p=171 I was trying to install mysql in centOS, which is rpm based Linux operating system like redhat, fedora etc. And I wanted to find out if it already installed or not.

Here is the command which list all the installed rpm software packages..

rpm -qa
  1. Above command list all packages, q means query and a means all.
  2.  
  3. rpm command generally used for installing rpm archive packages manually, and one can also see all installed packages as mentioned.
  4.  
  5. If you want to see few installed packages at a time then use below command
  6. <pre lang="bash">rpm -qa | less

This command lists the installed rpm packages in less linux shell text editor, it will show few at a time, to see more just keep pressing enter button on your keyboard.

To see specific rpm software package like mysql or python, run below command

rpm -qa | grep mysql — To see mysql packages
  1. rpm -qa | grep python — To see python packages

To list the rpm packages in sorted manner, run below command

rpm -qa | sort | less
  1. To get sorted rpm packages list in text file, run below command
  2. <pre lang="bash">rpm -qa | sort &gt; packages.txt

I hope these commands may help in finding installed rpm packages. For any help email me or give a comment below in the comment box.

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