I have a war which I deployed on a productive tomcat server. Now I have made another updated war which I want to deploy on the server in the place of the old war. I know I can just replace the old war with the new war, but I was wondering if there is a way to do this without breaking the application for the users?
Note: I am using a Jenkins script for deploying the war
If you are working with Load Balance or Cluster, you can use the Blue Green deployment methodology.
Related
recently i need to deploy elasticSearch as store to serve some part of the application. I already have tomcat server running in production for serving jaxrx application.
I read at many location but didn't find convincing answer, weather to deploy elaticsearch as an independent server or include the war file of elasticsearch in webapps folder of tomcat.
I am using elasticSearch 6 with transportClient and tomcat version 8.
I am also new to tomcat, so if it is advisable to include it as war file in tomcat then please share how to do that.
Thanks.
I am a new java learner and choose idea as my ide.
Now I am confused of the meaning of "Web exploded" as the image shows.
Exploded = unpacked. Normally web apps are deployed in war/ear archives (essentially zip). Using exploded deployment allows updating application without redeploying or restarting the server. The server doesn't need to unpack the web application when it's deployed, it just uses the files that are present in the directory.
This way you can test your changes much faster when developing and debugging, then you can build war/ear artifact and deploy it on the production server.
I deploy my application as ear in to weblogic. Even for a small change i need to build and restart my server. I am looking out for an easier solution where i could hot deploy my current changes.
I had already tried deploying ear as an open directory.
Can any body help me with this
weblogic uses a value in MANIFEST.MF to determine if the package to be deployed is a newer version of the current deployment. the value is 'Weblogic-Application-Version'. if you update this value, you can redeploy your ear file without stopping-starting the managed instance.
for more info: here
I have two applications with two separate WAR artifacts. One is a WAR exploded directory for my front-end Angular app, and one is a WAR archive file for my back-end Spring REST api. I'm currently using IntelliJ IDEA to deploy my front-end to a local Tomcat server and was wondering how, if at all possible, I could configure IntelliJ to run my two artifacts on Tomcat simultaneously. I know I can do this by putting both under Tomcat webapps directory manually, but I was wondering if it was configurable in IntelliJ, and if so, how?
Yes, you should be able to do that.
If you are using Ultimate, you can create a "Local Tomcat" run
configuration in Project1, and go to the "Deployment" tab and drop in
the WAR file for your Project1. Then drop in the WAR file from your
other project (call it Project2) as an External Source. You would
then have both WARs in one run configuration.
This is the answer I found out under this link.
I have a Java Web project (Struts + Spring) working perfectly in my localhost. I have to deploy it on my website, but the Tomcat Manager interface given by the webhost says it cannot upload a WAR file due to safety reasons. When contacting the tech support I was told it is not possible to upload a WAR and that I should try deploying my project by uploading the files directly (I have FTP access).
My problem is that no one at the tech support gave specific instructions on where I should put my project files (I don't know if it should be on de same folder the WAR would be sent to) neither how to start/stop it (Will the Tomcat Manager recognize it once I upload the files?).
You can always try to upload a war file to webapps folder of tomcat.
if tomcat is running with autoDeploy set to true it will auto deploy your application.
i think that the same will happen if you upload the exploded war to the webapps, the context will be the name of the directory you put your files in.
Just place your apllication's root folder to the Tomcat's directory webapps and configure tomcat to auto deploy. Restart the server and your application will be deployed.
You transfer the files to the same place as the war file would go - but just as an expanded war.
Whether or not tomcat will recognise that the files have changed depends on the configuration of the tomcat server. I'd just give it a go - transfer the files and see what happens. If it doesn't pick up the changes then you'll need to find out from tech support how to restart tomcat.