Tomcat Apache stopped suddenly - apache

My application is a GIS application:
Servlet & JSP app
Apache web server
Oracle DB
My problem is that Apache stopped working after approximately 2 hours from restarting the service.
During these 2 hours the application ran successfully with no problems, and suddenly Apache stopped serving any more requests.

Related

Application down after some time with proxy error

I am facing one issue constantly on the server. I have deployed the node js application. It's working fine for few hours after that automatically it goes down. It is showing proxy error in apache logs:

Do we need to reboot Apache web server if we update the source code of website it is hosting?

Well I am not an expert on Apache or any web server, I have recently finished my first web app, so I have rsyncd code to web server /HTML.
The web app is python flask based uses wsgi module to load.
I do not have control over Apache as it's taken care by systems department.
So I cannot test myself in office. I just want to know if we upload updated/modified code to the host machine running apache web server, will it pick up changes or we need to restart the Apache web server?

why dotnet.exe is terminated under IIS

Introduction
I do have WebApi on.Net Core 1.1 & simple test application executing some scenario with calls to my API in multiple threads. Web API is hosted under IIS on WS 2012 R2.
Problem
When I do start my test application with 20 threads in 20-30s test application begin to receive 401 error from the server. After some investigation, I've noticed that dotnet.exe process is suddenly terminated & restarted on the server on high load.
There is no information neither in my logs nor in Windows event log (only one from IIS AspNetCore Module about starting new process: Application 'MACHINE/WEBROOT/APPHOST/DEFAULT WEB SITE' started process '10248' successfully and is listening on port '23570')
I've tried to reproduce this on my machine without any success - this does not happen when my API is hosted in IIS Express from VS.
Question
What may be the reason?

performance issue with Apache2 server and wso2esb

Am working on wso2esb and created several proxy services and using Apache 2 proxy to call this services, So every request of ESB goes through the Apache2 proxy ,After an usage of 10-15 days the performance becomes slow day by day along with all the other servers performance which are using Apache 2 server are also slow.
Tried reloading and restarting Apache server but no change in performance.
When i restarted the esb server then it was back to normal stage, Doesn't know what esb is holding and causing this performance issue.
what can be done to resolve this with out restarting the esb server.

Apache Tomac Web Server and LOG4J Framework

I am new to Web Service and LAMP Stack.Currently I am working on a Web Application.It is a PHP Based Application that uses Apache Tomcat Web Server 8.0.26 ,MySQL Database ad Linux operating system(LAMP Stack).It has Web Services in Spring.
Following are the issues I am facing with the Application:-
1) Responses are slow over a period of few weeks from a web service hosted on tomcat.
Temporary Solution:-The problem is solved when we restart the Web Server.
2) What are the tools we can use to monitor tomcat / performance ?
Regards
Kaustubh
Take the dump of heap usage before and after of slow down and analyze. And also check your connection pooling with the database, check whether logs are getting rotated properly or not, check the number of active sessions in tomcat admin console.