linckon

Thnx James i found the problem in my site that comes from the code of addthis.com which is a social sharing site.
I removed that code and clear the cache the problem is solved. I think this type of social sharing sites/tools code generates the problem.
Some times this is not used by any plugins so find the codes and remove them to solve the problem.

i found the problem that is addthis (sharing tools). I removed the code of addthis and then the site is okey.

i am also facing this redirect problem.
its a customized theme which is runnig very well without any problem but suddenly last 16*-17 hours ago i am facing this problem. After facing the problem i am clearing all caches then update wordpress and other plugins but still the redirect problem.
I need a solution.

Here is my web site : https://www.newsworldbd.com/bn/

when u go to any link it will redirect to previous one within few seconds.

thnx for your reply but i didn’t use any other code or plugins. I am trying to find out the problem but it only shows the error of

[22-Jul-2015 12:08:38 UTC] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘) GROUP BY newsite1_posts.ID ORDER BY newsite1_postmeta.meta_value+0 DESC LIMIT’ at line 1 for query SELECT SQL_CALC_FOUND_ROWS newsite1_posts.ID FROM newsite1_posts INNER JOIN newsite1_postmeta ON (newsite1_posts.ID = newsite1_postmeta.post_id) WHERE 1=1 AND newsite1_posts.post_type = ‘post’ AND (newsite1_posts.post_status = ‘publish’ OR newsite1_posts.post_status = ‘private’) AND (newsite1_postmeta.meta_key = ‘post_views_count’ ) AND newsite1_posts.ID not in(…………..) GROUP BY newsite1_posts.ID ORDER BY newsite1_postmeta.meta_value+0 DESC LIMIT 0, 10 made by require(‘wp-blog-header.php’), require_once(‘wp-includes/template-loader.php’), include(‘/themes/as2/index.php’), query_posts, WP_Query->query, WP_Query->get_posts, W3_Db->query, W3_DbCache->query, W3_DbCallUnderlying->query, W3_Db->query, W3_DbProcessor->query, W3_Db->default_query

i am sure that this is happening from this plugin. Can u suggest me how to solve the issue.
I had avoid this issue for long time but now it crashes my sql . SO i need to solve the issue asap.
PLease suggest me.

i am using latest wordpress 4.2.2 and vps is 4 core 2 gb ram but my vps cannot load the site when there is 100+ visitors on real time. I am using w3 total cache.

what is the base requirements of hardware to run 200+ visitors on wordpress using w3 total cache.
Another server i am using w3 total cache where the server load is 0 when the visitor is also 2000+ in real time. In this case the hardware is very high such as 24 core 64 gb ram. so i need a specific hardware configuration of a server to run a 500 real time visitors.

thnx but now i am facing another problem that is when i am posting a new post then the server load is increase a lot.

I am using a vps of 2gb ram 4 core processor and centos 06

what is my solution now.

i am also facing this problem and didnot get any solution
please help me