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1answer
30 views

EC2 Failing Load Balancer Health Check

One of my projects is an internal web app which we are putting behind a load balancer. As of now there is only one ec2 (will be more in production) and the load balancer is not able to reach the ec2. ...
-1
votes
0answers
30 views

Route 53 TCP Health Monitoring with NC

We have multiple servers which are running UBUNTU 12.04 OS. We would like to create health monitoring for all of the servers. Since none of the servers are running web server I would like to create ...
0
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0answers
24 views

Get a specific answer as a result from helthcheck varnish

I want to make a condition. The backend is healthy only if i get as a result "alive", else even it get a result, it would be not healthy. backend test { .host = "192.168.1.100"; ...
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votes
1answer
151 views

HTTPS health monitoring on rackspace cloud load balancer

I was using rackspace cloud load balancer to switch between two of my nodes. It was basically a active-passive setup in which the switch would take place in case primary node fails the http health ...
1
vote
0answers
170 views

ELB healthcheck with multiple applications on same instance

Right now we're in the process of migrating our application on AWS, and we plan on having two applications (java war) on each instance ( We're using Tomcat as our application server). One of them has ...
1
vote
1answer
113 views

A practical way to do healthcheck for a new server?

I am currently trying to do healthcheck for a new server in data center as a first QA before using by any application side. "What is the practical way and tools to check that the server is fine to ...
0
votes
1answer
350 views

what are the best ways to check on the health of a debian based server [closed]

Hello I been thinking about how to do a regular check on a system to assess the state of health of the systems. I am really turning into a system admin gradually and I already manage about 10 ubuntu ...
2
votes
1answer
718 views

Varnish configure a backend to have multiple probes?

Is it possible in Varnish 3 to configure a backend to have multiple probes? I have multiple varnish servers and multiple backend servers running Drupal. I've configured a basic 1 second interval ...
0
votes
1answer
2k views

How can I check Windows Server 2008 health status and use them with Python

I am working on a project for which I need to create a Python class which can determine underlying OS on which it is running and performs a sequence of checks if OS is found to be Windows Server ...
3
votes
3answers
839 views

What to check during a periodic system health check

I have been tasked with preparing a list of checks to do as a part of a weekly system health check routine which my team is supposed to do. The problem is neither I nor any of my colleagues have ever ...
2
votes
2answers
3k views

How should I configure my ELB health check when using NameVirtualHosts and redirecting to www?

My ELB keeps taking my instances out of service, because the HTTP health check is failing. We have a DNS wildcard, and redirect everything to www: vhost.conf: ServerName www.example.com ServerAlias ...
0
votes
1answer
575 views

Is there a way to tell keepalived to make a health check immediately?

We have a high-availability setup in which lvs distributes requests between a set of backend servers ('realservers' in LVS-speak). LVS is managed by keepalived. Each realserver exposes a health check ...
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votes
2answers
386 views

nagios check_crash || how to detect when a server has crashed and rebooted?

Thanks to the Intel TCO watchdog some servers i manage now reboot on a kernel or hardware crash and init scripts are now even 'rebootsafe'. Sadly this means that i no longer get a notification from ...
3
votes
5answers
6k views

How Amazon ELB Health check Works?

I am having problems configuring ELB for my servers. I start 2 micro instances with the exact same conf and try to do Load Balancing. However they never pass the health check (HTTP port 80 path:"/"). ...
2
votes
2answers
1k views

How to monitor and measure the health of Compact Flash cards used as server storage?

Context The company sells access to a sort of cash register web application. Access to the application is given through a VPN. The VPN entrypoint for the clients is a Soekris board running Voyage ...
3
votes
2answers
641 views

MySQL Slave Health Check

I am working on a project like creating database config on fly , got an array of read replicas for mysql instance and keeping one open connection to each and keeping their statics in that service so ...
0
votes
1answer
2k views

Backend health checking with Apache 2.2 (possible?)

We have a couple servers running Apache 2.2 and Weblogic instances at work. I am wondering if Apache with mod_proxy or mod_weblogic can do backend health checking with focus on response times? Can ...
0
votes
3answers
9k views

Is there any CPU health testing software?

Is there any software that would test the reliability of a CPU? Like, check how all the instructions are working, verify that cache is not damaged, check for known CPU bugs, etc. I've got a machine ...
1
vote
4answers
244 views

Monitoring a one-off service

We do not have any sort of proper server monitoring solution in place (a situation I'd like to rectify this summer), but I've got one service in particular that I'd like to monitor. [Our current ...