Skip to main content

CATALINA_OPTS vs JAVA_OPTS


JAVA_OPTS may use by Other applications, but only Tomcat will use CATALINA_OPTS. So if you're setting environment variables for use only by Tomcat, you'll be best advised to use CATALINA_OPTS, whereas if you're setting environment variables to be used by other java applications as well, you should put your settings in JAVA_OPTS.


 What can go in there!

You can increase heap memory available to the JVM.

You can open remote monitoring ports so that Jconsole on another system can watch how your Tomcat is running.

You can add in a -server to switch from the client (quicker start, slower running) JVM to the server (slower starting, quicker running) JVM.

You can increase java thread stack size using the -Xss option (same way to specify amount of memory as in -Xms and -Xmx as described in the "increase heap memory" link above.

for more visit : http://www.sanjeevrathaur.com/2015/10/javaopts-variable-details.html
Labels:

Comments

  1. sheela rajesh10 April 2019 at 10:41

    Really you have enclosed very good informations.please furnish more informations in future.
    Hadoop Training in Chennai
    Big data training in chennai
    hadoop training in velachery
    JAVA Training in Chennai
    Python Training in Chennai
    Selenium Training in Chennai
    Hadoop training in chennai
    Big data training in chennai
    big data course in chennai

    ReplyDelete
  2. Reliable Technology Services7 September 2021 at 15:42

    It’s great to come across a blog every once in a while that isn’t the same out of date rehashed material. Fantastic read. Best managed security service provider service provider

    ReplyDelete
  3. Jalen Legros23 September 2021 at 16:06

    It’s great to come across a blog every once in a while that isn’t the same out of date rehashed material. Fantastic read. Best it support for small business near me service provider.

    ReplyDelete
  4. Mindest3 October 2021 at 15:23

    I am very much pleased with the contents you have mentioned. I wanted to thank you for this great article. 바둑이

    ReplyDelete

Post a Comment

Thanks for your concern.

Popular posts from this blog

JAVA_OPTS Variable Details

Memory Available to the Java JVM Increasing the memory available to the Java JVM JAVA_OPTS="-Xmx1024m -Xms256m" export JAVA_OPT Options description: -Xmx sets the maximum amount of memory that can be allocated to the JVM heap; here it is being set to 1024 megabytes. -Xms sets the initial amount of memory allocated to the JVM heap; here it is being set to 256 megabytes. Run Java JVM in Server Mode The Java JVM can optimize a number of things for server environments. You can explicitly select the Java HotSpot Server VM with the -server option. JAVA_OPTS="-Xmx1024m -Xms256m -server" export JAVA_OPT What the option means: -server instructs the launcher to use the Java HotSpot Server VM. PermGen Memory If you start getting java.lang.OutOfMemoryError: PermGen space error messages. You may want to include a "-XX:MaxPermSize" option in your JAVA_OPTS. JAVA_OPTS="-Xmx1024m -Xms256m -server -XX:MaxPermSize=128m" export
55 comments
Read more

Why Dozer Framework (Bean Manipulation)

Why Dozer ? Let us think about a situation that you have a source bean which contains lot of fields and the source bean belongs to a different project or module. Now you want to expose the bean to  the outside world as a part of your web service REST service development. It is not advisable to do it. There may be the following reasons. The source bean is not serialized and a final class. The source system does not allow doing it because of security breach. The source bean is very heavy and contains lot of nested beans. The source bean has fields of different types which may not be required for other system. The source bean has lot of fields; some of them are not required. Scenario to use Dozer Suppose You want to make a REST call or web service call to get the minimal account details of a person. But the source system has a bean called “Acc0untBean” which contains many sensitive information like person’s internet banking passw0rd, PAN no or social securit
121 comments
Read more

Difference between Micro Service and Web Services

Micro web services and Web services are two different concepts of application development architecture, Which can be differentiated from it's development style and layered architecture.In This article I will explain the difference between Web Services and Micro Services Web Services ? Web services are services that are made available from a business's Web server for Web users or other Web-connected programs. it is a way to expose the functionality of an application to other application, without a user interface. It is a service which exposes an API over HTTP. Web Services allow applications developed in different technologies to communicate with each other through a common format like XML, Jason, etc.  Web services are not tied to any one operating system or programming language. For example, an application developed in Java can be used in C#, Android, Php etc., and vice versa.  Web Service is a connection technology, a way to connect services together into a S
39 comments
Read more