i'm using RHEL 4, apache 1.3.37, php 4.4.6 and xcache 1.20. Now i'm looking into memcached and running it on more than one computer. So i got few questions:
1) Is it smart to run web/db on one server with 64mb memcached and remote box which is around 150ms from web/db with 2gb of allocated memory for memcached?
2) I saw if I want to use memcached i need to load in php memcache also. Since I already got xcache, will those two produce any products if they will work simultaneously.
I mostly need memcached to save mysql queries, and i'm happy how xcache caches dynamic pages.
I hope somebody here is using memcached. QPS are around 95.
I intend to store and serve files that is around 1-200mb from servers that is physically separate. I wish to store 2 or 3 copies of each file as a redundancy solution. When the file is requested I want to serve a direct downloadable link to the file. I am looking for logic to distribute load, and to detect if a server is down. I also whish to redistribute the files if a server is taken out of the pool..
Is there any open/free systems for this I can use?
The company that I work for is looking to buy a SAN to use as a storage backbone and for VM's and as part of our distributed disk infrastructure. Since cost is an issue, we are looking at IScsi running on a gig network. We have looked at DellMD3000i, and IBM DS300s anybody have any experience with either. Any pros/cons. Also any other hardware recommendations in a similar cost.
I'm looking into setting up a server-monitoring network: small globally distributed VPS servers all monitoring another main server (currently, just one server - but I would like it to be scalable).
When it notices it can't connect to a particular service, it should check to see if the other monitoring stations also can't connect - then a "master server" should send out an email + sms alert to the designated person for that server if all servers cannot connect.
Does such an open source piece of software exist? Or do I have to start writing my own...?
if you have a dedicated server, is it possible to let anyone become part of your dedi server using a software d/l?
eg: You put an app on your site for users to download,users download and run it, so now their internet connections become part of ur dedicated server, so when people access ur website, some data is downloaded from ur dedi server, and some data and cpu usage is used from the user's net connections who downloaded and are running the app.
Any commercial/open source software like this that lets website visitors become part of ur server?
We've been seeing sluggish performance on our mail gateways, and so I started doing some digging in the logs. It looks like we are filling up with messages like:
2007-05-16 12:22:16 Connection from [xx.xx.xx.xx] refused: too many connections
We have our max connections set to 20 (total, not host-specific) in exim4. So I started tailing the logs, and sure enough, we are getting bombarded with requests to randomstring@ourdomain.com coming from all over the map. The requests are getting denied of course, but that doesn't help the connection issue since they are consuming all of them, preventing real mail (for the most part) from getting through.
What is the proper way to deal with something like this? I could certainly just up the max connections value from 20 to 40 or 50 or whatever, but I'm not sure what kind of performance impact that will have on the rest of the traffic going through our gateways.
Since the spam attempts are coming from all over the place, it doesn't seem like I can just firewall out a few addresses and be done with it.
This particular rack is a cluster of web and database servers behind two gateway boxes, which handle the mail traffic (so this problem is on the gateways, the actual mail server itself sits behind the gateways and never actually sees these fake emails).
I'm running a wordpress site and am trying to get the memcached cache to expire (since the default is never).
I setup memcached using these instructions (ryan.wordpress.com/2005/12/23/memcached-backend/), but am unsure about how to proceed from here to set exptime.
We need to install the Memcached on Control Panel(Cpanel) installed dedicated server (RHEL4). I am not able to install the Memcached through Easyapache.
* I could not find Memcached option on easyapache. Can you please quide me, how to install the Memcached through easyapache.
I understand there is a price difference, that aside I wonder if anyone has any experience using both?
I.e. What if anything would make someone switch to Coherence over Memcached? And does anyone have any thoughts on a different alternative specially for .NET
We have drupal based website, on that website is getting very slow to open the webpages so that we like to install the any of the following Eaccelarator, APC or Memcached on cpanel based server.
Currently i am trying to install an Apache 2.4.3 as a caching reverse proxy. I would like to use memcached as my cache backend. I figured out there is a mod_socache_memcache, which from my understanding, should do exactly that(in combination with mod_cache_socache). So i compiled mod_cache_socache from trunk, loaded mod_cache, mod_cache_socache and mod_socache_memcache, but now i am stuck with the configuration. Here is what i tried:
where do i configure the path to my memcached instance? The reason for memcached as chaching backend, is that the machine is a windows machine, and from my understanding mod_cache_disk is not as efficient on a NTFS filesystem as it is on EXT3/4.
Another reason is, that later on there should be a possibility to put a second Reverse Proxy machine which shares the cache with the first one by using the same memcached instance (is that possible at all?).
You can edit the nginx directives for the desired vhost at the webserver config. However, it seems like that you can only add basic directives, but not something like that:
