I have an ubuntu apache/php server running php doing appx 100 hits/sec and a PHP cron running in the background.
I get occasionally high CPU load on one of the Apache processes which stays high regardless of traffic or cron activity.
I have a NagiosXi server monitoring 631 services on 63 hosts. Every seven hours the load on the server spikes up to 20ish and then gradually falls back to near-0.
There are no cron jobs running every 7 hours.
The server has 8 cores and 2Gb RAM. The RAM is not an issue, it still sits at 1Gb free during the spikes, and upping it to 4Gb makes no difference.
I'm running this linux:
Linux host.themepark.com 2.6.32-220.4.1.el6.x86_64 #1 SMP Tue Jan 24
02:13:44 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux
And I run the Selenium stand-alone server on my box with this command:
java -jar /home/l/cron/selenium-server-standalone-2.24.1.jar > /logs/selenium.log 2>&1 &
Here's the problem: as soon as I do that, the server load starts skyrocke
I'm running nginx wordpress server in KVM using 12.04 server x86. It was running very well about 4 month until 2 hours ago. I found that my website is down and no ping response. Virt-manager logged high cpu load(plz see the picture below) before unexpected shut down. I want to know what process caused unexpected shutdown. The following log files make me think my server is attacked.
I am configuring elysia_cron on a Rackspace Managed Cloud Server. We have a loadbalancer in front of two webservers. Am I supposed to use all three (3) IP addresses (Load Balancer, Web01, Web02) in the "Allowed Hosts" field? or just use the IP address of the Load Balancer?
We have server with high traffic website.
Recently we moved from
2 x 4 core server (8 cores in /proc/cpuinfo), 32 GB RAM, running CentOS 5.x, to
2 x 4 core server (16 cores in /proc/cpuinfo), 32 GB RAM, running CentOS 6.3
Server running nginx as a proxy, mysql server and sphinx-search.
Traffic is high, but mysql and sphinx-search databases are relatively small, and usually everything works bl
I run apache2 on Ubuntu as a caching load-balancing reverse proxy in front of a group of application servers.
I have an Ubuntu (12.04) NFS server that has a high load (larger than 10) even when nothing is running.
In detail, the storage is provided by an iSCSI device, on which I have 5 logical volumes (LVM) and some etx4 partitions. Even with all services stopped, and no exports (that is no client traffic), the load is at 10.
I am setting up a load balanced system on Amazon AWS. I will be uploading photos to my server and then reading the photos off the server from another device.
Let's say I have Server-A and Server-B running on my load balancer. If I upload a photo and hit Server-A, then I am assuming I won't be able to see the photo on Server-B.
What is the best way to handle this?