Hello. Am a newbie in the forum and I have a weird problem with my reseller account. The server that I am on has these characteristics Intel(R) Xeon(R) CPU E5506 @ 2.13GHz/24GB ddr3 CloudLinux Server release 5.7 64 bit/litespeed webserver And overall are 800 clients (in whois.domaintools.com that I am looking right now the Shared IP Address of the server that I am is the "Reverse IP: 1,195 websites use this address.") And the limits are 1gb of memory and 25 concurrent connections In the reseller account that I have I created two accounts: 1.wp multisite with 3 site in under contraction/coming soon message with 2 gb ram and 30 concurrent connections (I don't know why, I am waiting for an answer from my host provider). The last 7 days from Resource Usage Details: img545.imageshack.us/img545/3504/1stmultisiteresourceusa.jpg 2.a wp ezine blog with 4-6 monthly unique visitors/150-200 a day visits with 2 gb ram and 20 concurrent connections (I don't know why, I am waiting for an anwser from my host provider). with 25 Active Plugins: Admin Locale/AdRotate/All in One SEO Pack - Pro Version/Calendar Posts/CloudFlare/Contact Form 7/Easy Mashable Social Bar/FeedBurner FeedSmith/Google Analytics for WordPress/Google XML Sitemaps/JW Player Plugin for WordPress/NextGEN Gallery/Really Simple CAPTCHA/registration-login/TentBlogger SEO Categories/Top 10/Twitter Embed/W3 Total Cache/WP-DownloadManager/WP-Optimize/WP-PageNavi/WP-reCAPTCHA/WP-UserOnline/WP Smush.it/WP Smush.it NextGEN Gallery Integration The last 7 days from Resource Usage Details: img220.imageshack.us/img220/6983/2dezineresourceusagedet.jpg My problem is when am going to apply or save the setting of a plug in or when am going to publish or save as a draft a post I get same message: 503 Service Unavailable The server is temporarily busy, try again later![HR][/HR] Powered By LiteSpeed Web Server [SIZE=-1]LiteSpeed Technologies is not responsible for administration and contents of this web site! Also it takes a lot of time for my site load. It doesn't load the virtual editor of the post. And the only thing that my hosting provider suggests to optimize my site(But, I already [/SIZE]use plug ins (CloudFlare,W3 Total Cache[SIZE=-1], [/SIZE]WP Smush.it & WP Smush.it NextGEN Gallery Integration[SIZE=-1]or) [/SIZE]in order to optimize my site)[SIZE=-1] to move to a Cloud server. What do you think about that? Should I move to a Cloud server or use CDN to my current reseller account? Also, does the problem really starts from me or my hosting has done a lot of overselling? Please suggest me anything that will be useful for my problem and if it's necessary to give you some information(That I might have forgot to mention) to help you understand.[/SIZE]
Check your wpmu because some spammers are using autoblog softwares. On my wpmu i found this issue also. If its not helpful to you PM me.
I just went through something simular with a client site. The problem with them was their Mac Mail. They had multiple email accounts that were constantly sending requests to the server. Same as you, they had a limit of 25 concurrent connections and their emails were running 26 at any given time. Even where they weren't sending or receiving. Therefore the site was constantly giving 500 Internal Server Errors.
In the wp multisite are 3 sites and they are mine, nobody else can make a site based on it. I have made it in order to update faster the plug ins and the wordpress (Am thinking in this site to put e-zine). A month ago I was receiving these errors: 500 Internal Server Error/404 error/503 error & Fatal error: Out of memory (allocated 11534336) (tried to allocate 30720 bytes) in /home/site/public_html/site.com/wp-includes/comment.php on line 1412 Now I only get the 503 error. In the first site I have 30 connection and on the other 20 connection and I have the same problem with both of them.
I understand what you are saying but that doesn't tell me that you've addressed whether or not your email set up is causing constant connections? It's not going to say "your email is causing constant connections" it's going to give you an error for what ever process it was trying to execute, and couldn't because there was no memory left to do it. It's telling you what it can't do, not what it is doing.
This probably something that you are going to need to handle with your host. After all, they are the ones running the equipment. There's not a whole lot we can tell you about the problem except make a bunch of guesses. But I will say this, 1,195 websites on the same IP address is just ridiculous. Especially as easy and cheap as it is to buy more IP addresses. I've got all of my important sites on their own IP, and don't have more than 3-5 on any others. I don't understand why people do this. Especially hosts and resellers. You are obviously using too many resources. It could be memory, database limits....anything. Given that there are that many websites on the account, I really don't know how you can say that every possible email configuration isn't draining the system's resources. It doesn't matter if they are working for you, what matters is how many times are they requesting connections? If you have 20 email addresses making requests every 2 seconds ( as my client did) that's 40 connections every 2 seconds. If you have a limit of 25...then I can see where you would have a problem. Now multiple that possibility by how many email accounts that server is running. Your host is the only person that can definitely help you here. The other thing that I will say is, when you don't know that the problem is, don't be so quick to dismiss what it isn't. Because the bottom line is, you don't know, that's why you are asking here. Or if you have already checked out what IT ISN'T, why don't you tell us what you are positive it isn't so that we don't waste our time rehashing those possibilities?
You may have more luck with some answers in the section of the forum that talks about servers and hosting. http://forums.digitalpoint.com/forumdisplay.php?f=18 Your specific problem may or may not have anything to do with WordPress: