Tag Info

Hot answers tagged

3

Cache times are built using the current system time. Time jumps such as you experienced are expected to create strange behavior. nginx is just one of several programs which can behave this way. These issues generally clear, once the times catch up. Try running an ntp daemon process rather than periodically running ntpdate. One advantage of ntp over ...


1

Second, check if the Website uses SPDY. Squid is not capable of SPDY right now, but both Browsers are. I have seen strange side effects on SPDY-Sites with Squid, like broken connections (after few minutes), pages that load only on the second refresh hit and sites that only loaded 70% of the content. Try to disable SPDY in the pptions (of the browser(s)).


1

Your actual issue is the frequent restart of Apache that is preventing APC to build cache. I do not comment on the memory size for wordpress. Are you using cPanel? It has a log rotation feature that before log rotation restart Apache, although it is a graceful restart but clears all APC cache. You can either increase log rotation threshold or see why it ...


1

It was indeed a bug, as of now it is fixed, more information on Squid's bugtracker.


1

You've completely changed your environment (DNS provider, datacenter provider, etc). I would not look at your nginx configuration because that is too far from the end user, when troubleshooting blank page issues. Start by being able to replicate the problem and collecting data. Chrome or IE have excellent developer tools (F12) that will allow you to record ...


1

You can achieve this functionality by using a standalone cache (e.g. memcached or redis). nginx has modules to work with them. You will need to some convention on cache keys (e.g. construct the key from user cookie and url). In this case, you can control the cache items from the backend, including invalidating and updating.


1

One thing that many people miss, especially when running Tomcat and other Java-based applications on VMware, is the impact that this software has on VMware's memory allocation. So first: Do you have access to the vSphere or vCenter Management for the host/cluster? Do you have the VMware tools installed? I often see unexplained memory issues inside of ...



Only top voted, non community-wiki answers of a minimum length are eligible