Feb 262014
 

HTTP compression is required to use bandwidth more efficiently and to enhance the performance of sites http calls.
For low bandwidth connections like VPN and dial-up modems, compressing static or dynamic content helps with faster download times and user experience.

Here we will discuss about compression in two IIS versions.

1. IIS 6.x
2. IIS 7.x Continue reading “Steps To Enable HTTP Compression in IIS” »

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Feb 252014
 

We used to get below mentioned error while creating or selecting multiple reports to generate in applications deployed in Jboss. Few times it used to error as “Internal Server Error”. After few searching we found the solution, please follow the steps mentioned to fix the issue.

Error In Logs:

java.lang.IllegalStateException: Parameter count exceeded allowed maximum: 478
at org.apache.tomcat.util.http.Parameters.addField(Parameters.java:218)
at org.apache.tomcat.util.http.Parameters.addParam(Parameters.java:337)
at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:417)
at org.apache.tomcat.util.http.Parameters.processParameters(Parameters.java:368)
at org.apache.catalina.connector.Request.parseParameters(Request.java:2568)
at org.apache.catalina.connector.Request.getParameterValues(Request.java:1118)
at org.apache.catalina.connector.RequestFacade.getParameterValues(RequestFacade.java:396)
Continue reading “Resolving Parameter count exceeded allowed maximum Error | JBoss” »

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Feb 252014
 

While importing a db dump to oracle database we usually get the “Deferred Segment Creation” error while importing. Though the import will continue till end but it fails as a whole import as the import data is corrupt.

This usually happens when you export a dump from higher version of Oracle and trying to import into a lower version of oracle DB.

Error Seen in logs :

ORA-39083: Object type TABLE:""."" failed to create with error:
ORA-00439: feature not enabled: Deferred Segment Creation

Continue reading “ORA-00439: feature not enabled: Deferred Segment Creation | Oracle” »

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Feb 252014
 

This is required when you are facing some issues with any server and not sure if any jars got corrupted or replaced something which is not authenticate.

To avoid this situations usually Application servers inbuilt jars comes with signs of the owner, so that at later part they can verify if the server jars are genuine or altered ones.
Continue reading “How to verify a Jar file is signed or not” »

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Feb 252014
 

Usually this redirection is required when we have enabled ssl in Apache and want all users to be redirected to secure url once they type in the application address. We have achieve the same in below two ways.

Method 1:

- Open httpd.conf file and enable mode_rewrite module like below

LoadModule rewrite_module modules/mod_rewrite.so

Continue reading “Steps to redirect HTTP to HTTPS in Apache” »

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Feb 242014
 

If you are getting below error while dropping a tablespace in Oracle database, then please follow below steps to solve it.

SQL> drop tablespace TDS_DATAFILE including contents and datafiles CASCADE CONSTRAINTS;
drop tablespace TDS_DATAFILE including contents and datafiles CASCADE CONSTRAINTS
*
ERROR at line 1:
ORA-23515: materialized views and/or their indices exist in the tablespace

Please follow below steps to resolve the issue:
- Login as sysdba in DB machine.
sqlplus /nolog
conn /as sysdba;
Continue reading “ORA-23515: materialized views and/or their indices exist in the tablespace” »

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Feb 132014
 

While starting Jboss it used to throw the stack overflow error like below. Each thread in a Java application has its own stack. The stack is used to hold return addresses, function/method call arguments, etc.

So if a thread tends to process large structures via recursive algorithms, it may need a large stack for all those return addresses else it will throw stack over flow error.

You may be running into a problem with the default stack size for threads. In Java SE 6, the default on Sparc is 512k in the 32-bit VM, and 1024k in the 64-bit VM. On x86 Solaris/Linux it is 320k in the 32-bit VM and 1024k in the 64-bit VM.
Continue reading “Unexpected error during load StackOverflowError in JBoss” »

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