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1
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0answers
21 views

Enabling APC cache takes down website

I have a VPS running on centos 5 with 2 GB ram. I run a IP.Board forum on that server. Recently my server was hacked and I had to format the disk and start again. I was using APC cache before and it ...
0
votes
0answers
17 views

Is it possible to disassemble an APC Netshelter SX enclosure?

I need to move an APC Netshelter SX 48U from one room to another, but the new room is lower than the current one and I cannot install it without disassembling it. According to APC, these enclosures ...
0
votes
1answer
63 views

apcupsd vs NUT in Proxmox environment

I have a Proxmox node which is actually is HP Proliant DL 320e G8 server + APC SmartUPS 750 connected directly to the server by usb cable. On the host are running several Linux VMs. My question is - ...
0
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0answers
13 views

APC always cache a file even if larger than max_file_size?

Currently running an APC cache, and we want to generally limit file size to 2M, but with one exception. Anyway to specify including a specific file even if larger than max_file_size?
0
votes
2answers
163 views

Can zend opcode cache and APC cache run together on same server?

I am on a dedicated server - running multiple portals in respective virtual directories. Some of the previously loaded websites are using Zend opcode cache. While my new commerce portal uses an APC ...
-1
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2answers
589 views

PHP Warning: Module 'apc' already loaded in Unknown on line 0

I am on a dedicated server with my site hosted in a virtual directory. There are few other sites hosted in different virtual directories. I have APC and APCu installed. When i restart PHP-FPM i get ...
0
votes
2answers
199 views

APC file cache not working properly getting internal server error 500

I am having some problem with APC working properly. File cache always shows Hits = 1 and misses keep increasing, but at the same time, the cached file entries show some numbers in hundreds over some ...
2
votes
1answer
63 views

How does PHP APC shared memory expiration works?

I am using the APC and see I still have 25MB of free memory. However, in the Cache full count, I see I have 8 already. So, why that happens? And if my understanding is: APC is not a LRU cache, so ...
1
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0answers
92 views

APC has no system cache entries

I have 2 web servers to provide PHP websites. One server is : Apache + PHP-FPM + APC The other : Apache with MPM-itk + APC. For both of these servers, APC has no cache system entries but only users ...
0
votes
1answer
74 views

APC resets after a few seconds

Got a new server and the host installed APC for me. Reloading apc.php shows that ACP resets itself every 4-6 seconds. Uptime is alyways 0 and hits never go above 3000. The site runs smoothly but if ...
1
vote
2answers
313 views

php crashes with no core file and this message : apc_mmap failed

Description of the problem Regularly, cron php processes crash on our production server, which result in mails with the following body : PHP Fatal error: PHP Startup: apc_mmap: mmap failed: in ...
0
votes
0answers
26 views

APC Power Controllers Inaccessible After Brief Power Loss

It seems like every time there is a brief power outage in our environment (1-2 second blip). There are generally a handful of APC power controllers that become inaccessible through network. The ...
1
vote
1answer
988 views

APCu and APC setting unclear

Please help me to understand where is difference between APC and APCu lies. While inspecting CentOS web-server (set up not by me) found that it has APCu 4.0.2 installed and phpinfo(); reports that APC ...
0
votes
1answer
94 views

APC Memory Pool and Apache Problems

i have a problem with my APC and Apache. Since i have been installed APC on my VPS, i face to many problems. Here is one of them. My Apache keeps falling down, server port :80 is available, but its ...
0
votes
2answers
148 views

Wordpress (using varnish + apc + w3tc): Do the statistics get updated when the data is being retrieved from the cache?

If the data is served to the client from the varnish cache, does it still get registered as a hit in the statistics (could be derived from nginx logs or might be google analytics)? I believe if the ...
-1
votes
1answer
397 views

How to enable PHP APC with Virtualmin

Is it possible to enable PHP APC in Virtualmin? If yes, how? (almost no information in foruns, official documentation, web, google..) Important: (this is the reason for this question) Virtualmin, ...
0
votes
1answer
43 views

Slow I/O due to APC

I have a vps running Ubuntu 10.04 with nginx as my webserver. I use APC for php caching and I noticed my server is doing lots of disk queries which resulted me having slower I/O. I have about +50 ...
0
votes
2answers
237 views

Unable to install PHP5-APC

When trying to install php5-apc, getting this error : root@x-fr-1:/etc/apt# apt-get install php5-apc Reading package lists... Done Building dependency tree Reading state information... Done The ...
0
votes
2answers
186 views

How do I make the server response faster on search results (WP, nginx, apc)

I have my own virtual server in the cloud, running nginx and APC. On this server I have one wordpress blog using the W3TC-plugin. I've enabled page cache and object cache using APC. When accessing ...
3
votes
3answers
313 views

Caching PHP pages, Varnish, nginx, other?

I have a web application running on a low end box (1gb RAM), serving a mixture of static and dynamic (php) pages. These PHP pages are querying a MYSQL database which does not change often at all - ...
2
votes
2answers
81 views

Two APC Symmetra LX 16kVA into one common output?

We have 2x APC symmetra LX 16kVA units running at the moment and have read (in Eaton's documentation) that their UPSs can have a common synchronised output (based on input phase or set phase with a ...
0
votes
1answer
224 views

apc.shm_size : right value format

On howto and documentation, I generaly find this format apc.shm_size=512M but on one of my server APC 3.0.19 does not like the "M" and crash apache [apc-error] apc_mmap: mmap failed: Cannot ...
3
votes
2answers
5k views

Error installing APC in apache2 VPS with php-5.5.1

When I install APC: pecl install apc I'm getting this error: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. ...
0
votes
2answers
281 views

It is possible to visualize the load of an APC switched PDU for a specified period of time?

There are some APC PDUs AP7953 and now we think about a solution for check the load over a period. We don't need a 100% correct Value only a trend on which hours we have more load to localize peeks in ...
0
votes
1answer
125 views

Every 4th sunday at 6:45am my web server goes down because of apc_mmap error

PHP Fatal error: PHP Startup: apc_mmap: mmap failed: in Unknown on line 0 [Sun Aug 11 06:45:16 2013] [notice] seg fault or similar nasty error detected in the parent process The system ...
6
votes
3answers
1k views

Is APC's smart-signaling cable (940-0024) really proprietary?

First, not sure if this question belongs here or SU, so please advice accordingly before wildly down-voting or blasting me. We have a UPS unit for which we recently configured to work on our network. ...
0
votes
1answer
66 views

Multiple instances of APC cache when refreshing apc.php

Hope you guys can provide some info on an issue I'm seeing. I'm running a Centos server with mod_fcgi and APC cache. APC cache is running, but when refreshing the apc.php, I see what look like ...
0
votes
1answer
230 views

Is there some software available to centrally manage APC IP enabled PDUs? [closed]

I am not looking for a recommendation of which one to use, just an answer as the whether anything to do this exists. We have a few dozen AP7921 & similar units that until now we have managed on ...
0
votes
1answer
55 views

Any possible side effect to use APC on shared host? [closed]

I'm using a shared host for a CMS site. This shared host has an option to use "APC". I just tried this option on a test site as it can be enabled just by one click on my account page of the shared ...
2
votes
2answers
519 views

Ram issues with NGINX, PHP-FPM+APC and Varnish

I'm running a 512MB and i have lot of ram issues. I think is due to my configuration. root@s1:~# free -m total used free shared buffers cached Mem: 1024 ...
1
vote
2answers
335 views

How to reduce I/O on EC2 micro instance running wordpress

I have been running a very small wordpress site on Amazon EC2 for about 2 months, using the free tier micro instance. I have been getting billed a few dollars each month for going over the disk I/O ...
0
votes
1answer
193 views

does apc cache count into php memory usage?

Does apc cache counts into php memory usage? I am using php-fpm but I am not sure if that is relevant. If apc memory is set to 256MB and php memory limit for individual workers is also 256MB does that ...
5
votes
1answer
1k views

Does APC really improve performance with PHP 5.3+

According to a Linux Adminstrator over at Hostgator: With PHP 5.3 having APC installed is not needed as PHP 5.3 already has improvements that APC does resolve in it. Is that statement actually ...
1
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2answers
304 views

Memory adjustments for magento with php5-fpm , Nginx, APC, Mysql

I am using magento with php5-fpm , Nginx, APC, and Varnish. When there is varnish hit, the load time is very good. But on varnish miss, the site takes toomuch time to load. I have seen through htop ...
0
votes
1answer
598 views

Does PHP take advantage of APC if run as apache module with prefork?

I have installed APC, but I am not observing as big an impact on performance as I expected. Actually, I'm not sure I'm observing any benefit, though maybe it's just because the cpu time spent in ...
1
vote
1answer
7k views

How do I check APC cache is working?

I have Debian server with php5-fpm and nginx installed. Just installed apc cache: apt-get install php5-apc /etc/init.d/php5-fpm restart /etc/init.d/nginx restart when I modify any php file and ...
0
votes
2answers
368 views

Wordpress feed does not update after APC and Cloudflare

I am running a Wordpress site on a Ubuntu server. I installed APC and setup Cloudflare. After that I started having a strange problem with the feed. When I check the feed on the browser, I can see ...
0
votes
1answer
558 views

Getting APCUPSD working with PowerChute (pcnet)

After configuring apcupsd and starting the service the service eventually times out and reports Warning communications lost with UPS. The ups is configured with the IP of the client and the client is ...
1
vote
1answer
234 views

HP Proliant ML350 G6 UPS

We're trying to select the best UPS within our budget. Our goal is to allow 2 x HP Proliant ML350 G6 servers time enough to shutdown. We're estimating this to be no more than 10 minutes. Can anyone ...
0
votes
2answers
391 views

How to TAIL & EGREP for a specified time range in a BASH script

The subject mostly says it all. I am in charge of a few web servers running Ubuntu 12.04 running Apache2 & I would like to setup APC. Now I understand APC can hit segmentation fault issues when ...
0
votes
1answer
411 views

PHP APC not working

I just installed APC with PHP Handler FastCGI. But it seems the Cache never working. if(($t=apc_fetch('key_4321'))===FALSE){ $t=time(); apc_add('key_4321', $t, 24*60*60); } echo $t; Almost ...
0
votes
1answer
1k views

php-fpm, nginx magento store. Coming to a halt

We just moved to a new server. 2 x Dedicated, 48 GB ram, php-fpm, nginx, memcached, APC. We have an issue where each php-fpm process that spawns keeps getting bigger. A fresh restart of php-fpm shows ...
1
vote
1answer
92 views

Install apc in production environment

Executing a pecl search apc returns the following: Package Stable/(Latest) Local APC 3.1.14 (beta) Alternative PHP Cache And according to here: http://pecl.php.net/package/APC 3.1.14 is ...
1
vote
1answer
147 views

Do you need to recompile PHP to use APC?

I have a custom PHP installation which I compiled because the packaged version was too old for my project. I would need to install APC, do I need to recompile PHP to add APC module or is there ...
0
votes
1answer
85 views

Incrementing values, alternate way of doing this that won't use MySQL

I need to count impressions of a .php script that is accessed via web. Right now I do this in a 1 line MySQL table and just increment the value. This works fine usually but when the server has traffic ...
1
vote
1answer
777 views

How to install APC on a vagrant box running Ubuntu 12.04 with PHP 5.4?

In my "Vagrant" file I have this line: chef.add_recipe("php::module_apc") But it gives me this error: [2013-01-11T22:14:53+00:00] INFO: Processing package[php-apc] action install (php::module_apc ...
0
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0answers
127 views

strange difference with php -m and phpinfo.php and apc

i have few servers where i found that apc is working but its not in php -m list. Instead i see php -i shows me eaccelertor. File phpinfo.php shows me that i have apc enabled and ioncube as well, but ...
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0answers
309 views

APC using mod_fastcgi only caching apc.php

I'm on Debian 6.06, using Plesk 11.09, with Apache2 and nginx as reverse proxy. I'm trying to setup the APC, but it seems not to work properly. The APC Webinteface, apc.php, tells me, that APC is ...
2
votes
1answer
840 views

Continuous segmentation faults (code 11) with nginx and php-fpm

I'm running a CentOS 6 64bit server with 1.2 GHz CPU and 2.4 GB RAM. The server runs nginx and php-fpm with the APC extension and also mysql. A couple of weeks ago the server starting continuously ...
1
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0answers
155 views

Data Cache (XCache, APC, memcached, etc) on shared hosting / privacy considerations

I have one question. How appropriate is to use on shared hosting a cache system for data? I mean as far as I know the data is written in a shared data cache (not private for each user) across all ...