When To Upgrade RAM (Linux - CentOS)
May 21, 2009
With Windows, it's simple to know when you need to upgrade the memory on a server. On Linux, apparently alot of RAM is reserved for cache?
Anyways, I currently have 2GB of RAM in a server and am wondering when the RAM should be upgraded. The server has became quite unstable and server load is always below 2, usually around 0.60 - 1.20.
Here's the current memory usage from PHPSysInfo (picture below):
[url]
Would you recommend I upgrade the RAM to help with stability?
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Feb 8, 2015
How to upgrade PHP to PHP 5.4 on CentOS 6 ?
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Feb 24, 2007
I have a server running cPanel.
At the moment, I am been hosted on an unmanaged server (dedicated).
My server provider is offering $25/hour for managed support.
My Kernal and Centos have not been updated for a while and I am looking to upgrade both of them. I am wondering how long would these 2 jobs normally take?
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Jun 2, 2007
I'm trying to upgrade centos 3.8 to 4.5 but seem stuck here
I did a :
yum update --all
(nothing to be upgraded)
root@server [~]# rpm -Uvh --force yum-2.4.3-3.el4.centos.noarch.rpm centos-release-4-4.3.i386.rpm
error: Failed dependencies:
python-elementtree is needed by yum-2.4.3-3.el4.centos
python-sqlite is needed by yum-2.4.3-3.el4.centos
root@server [~]# rpm -Uvh [url]
Retrieving [url]
error: Failed dependencies:
python-abi = 2.3 is needed by python-elementtree-1.2.6-5.el4.centos
root@server [~]# rpm -Uvh [url]
Retrieving
[url]
error: Failed dependencies:
libsqlite3.so.0 is needed by python-sqlite-1.1.7-1.2.1
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Jun 30, 2009
I wanted the database to 5.0.67-community version last update and do the best version available. OS: CENTOS 5.3 i686 standard is. And PHP version 5.2.9 and Kernel version 2.6.18-128.1.6.el5 I can version this database to mysql-5.1.35 updates can If you can help there. and if this is not good please help me that what version that this current version is better I do updates. You're commands and write how it can be done.
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Oct 28, 2009
why a VPS host wouldn't upgrade a VPS from CentOS 4.7 to 5.4? Is there some technical explanation that I'm not privy to?
Hello,
Unfortunately we cannot upgrade the OS on our VPS product. If you would like to go up to CentOS 5, you will need to purchase a dedicated server and we would then be able to migrate all of your accounts to that dedicated server.
Is this something you are interested in? I can get you over to our sales team to discuss getting a dedicated server if you would like.
Regards,
xxxxxxxxxxx
I replied asking if they offered CentOS 5 VPS and this was his reply:
Hello,
Yes, that is correct. As far as I know, that is in development, but I couldn't even begin to speculate when that will be finalized.
Did you wish to be upgraded to a dedicated server?
Regards,
xxxxxxxxxxx
Aside from the extremely annoying upsell at the end of each e.mail, I'm inclined to think I'm going to have to change VPS providers.
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May 28, 2009
I am planning on upgrading to php 5. I really don't need to upgrade to mysql 5 but do you guys think I will face problems with PHP 5.2.9 and Mysql 4.1.20 working together...
I am planning on doing the upgrade like this (if I decide to upgrade PHP and MYSQL all together)
1. STEP
nano /etc/yum.repos.d/CentOS-Base.repo
2. STEP
change the enabled=0 to 1 as follows
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=2
protect=1
4.STEP
yum install php-xml
5.STEP
yum update httpd* php* mysql*
and restart the server do you guys think I will face any problems.
If I am only upgrading the php to latest I am planning on doing
1.STEP
I will do the 2.STEP above
2.STEP
wget -q -O - http://www.atomicorp.com/installers/atomic.sh |sh
yum install php-xml php-pdo
yum install php-pear
mv /etc/php.ini.rpmnew /etc/php.ini
and reboot
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May 28, 2009
I am planning on upgrading to php 5. I really don't need to upgrade to mysql 5 but do you guys think I will face problems with PHP 5.2.9 and Mysql 4.1.20 working together...
I am planning on doing the upgrade like this (if I decide to upgrade PHP and MYSQL all together)
1. STEP
nano /etc/yum.repos.d/CentOS-Base.repo
2. STEP
change the enabled=0 to 1 as follows
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=[url]
release=$releasever&arch=$basearch&repo=centosplus
#baseurl=[url]
gpgcheck=1
enabled=1
gpgkey=[url]
priority=2
protect=1
4.STEP
yum install php-xml
5.STEP
yum update httpd* php* mysql*
and restart the server do you guys think I will face any problems.
If I am only upgrading the php to latest I am planning on doing
1.STEP
I will do the 2.STEP above
2.STEP
wget -q -O - [url]
yum install php-xml php-pdo
yum install php-pear
mv /etc/php.ini.rpmnew /etc/php.ini
and reboot
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Feb 27, 2008
Currently running a server with a little less than 100 accounts, running 32 bit CentOS 4.6 on a single chip running a current version of Cpanel and we're going to upgrade to a two quad core chips, and I figured I'd take this time to upgrade to a 64 bit version of CentOS 5.1. Here's my question: We're running an old version of Apache, and PHP
Server Version: Apache/1.3.37 (Unix) mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 PHP/4.4.6 FrontPage/5.0.2.2635.SR1.2 mod_ssl/2.8.28 OpenSSL/0.9.7a
and while all we have on the server now are wordpress blogs and a few forums, I have to confess a level of uninformed-ness when it comes to upgrading Apache and then transferring all the accounts.
These will be different machines, as I hope to make the backup/restore fairly seemless.
Should I upgrade Apache to the Apache2.* before I make the transfer, or does it matter? Same with PHP to PHP5.*
There shouldn't be any conflicts, but I'm posting this because I haven't had to deal with it as yet and thought someone knew of an large issue I could be on the lookout.
Also, the RPM/Perl modules's I've installed over time. Uh, is there a "differential" list or am I going to have to create a list of the RPMs I've got now, and then check after I make the build on the new machine? There's probably a dozen or so ones specific to some applications on the server that aren't required for the core operation, and damned if I can remember which they were...
I have more worries, but most of it involves hand holding issues I think I'll work on privately, but if I do have any more questions, I'll add it to this thread.
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Jul 7, 2008
How to upgrade php4 to php5 on CentOS 4.6?
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Jun 20, 2014
I am trying to install Magento on my apache server. I am running into the dreaded mcrypt issue as Magento needs it to run. I have now been googling for the past few hours and have gotten nowhere.
Here are my details:
Linux
Centos 5.5
PHP 5.3.3
x86_64
Plesk 12
I have tried installing all sorts of different repos and it just isn't working.
When I try to install using # yum install php-mcrypt I get the following:
Loaded plugins: fastestmirror
Package php-mysql is obsoleted by php-mysqlnd, trying to install php-mysqlnd-5.5.13-3.el5.remi.x86_64 instead
--> Processing Dependency: php53-gd for package: psa-php53-configurator
--> Processing Dependency: php53-imap for package: psa-php53-configurator
[Code].....
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Apr 29, 2007
Last year I ordered a new server with Centos 4.3 and it had the kernel kernel 2.6.9-34.0.2ELsmp installed. It runned fine and I didn't update any packages since then.
Today I started getting a problem where both mysqld and kswapd0 uses very high amounts of CPU, spiking up to 100% and my memory usage is at 99% all the time. The problem seems exactly the same as the one mentioned in this thread.
In that thread the exact same kernel is said to be insecure and to cause this problem. I also came across a centOS bug that reports this problem with high cpu, mem usage and mysql & kswapd0 consuming all resources.
In the linked thread the person solved the problem by upgrading to kernel 2.6.9-42 using rpms but others recommended a newer kernel or a custom compiled kernel for CentOS.
Apparently when they used yum it said 34.0.2 was the latest kernel.
What should I do to upgrade the kernel, which version should i upgrade to, and where do I get it from? I won't be able to compile a custom kernel and I've only installed basic rpm packages before.
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Apr 1, 2015
I have a Plesk host that I am tasked with upgrading. It started with openSUSE 11.4 on Plesk 10.4 and I have upgraded it all the way to openSUSE 12.2 on Plesk 11.09 (fixed minor issues with pop3d and mysql locking on the way). The next upgrade was supposed to be 11.5, but the option to upgrade it never shows up. I have re-instated our support license so I know the license is OK, and also checked that 11.5 supports openSUSE 12.2. The update log doesn't really tell me much either:
Code:
Release PLESK_12_1_18 contains no any build for this OS
Release PLESK_12_1_17 contains no any build for this OS
Release PLESK_12_1_16 contains no any build for this OS
Release PLESK_12_1_15 contains no any build for this OS
Release PLESK_12_1_14 contains no any build for this OS
[code]....
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Jul 31, 2014
While running the plesk auto installer script and upgrading I get the following error.
Components validation detected at least one important issue:
Parallels Panel pre-upgrade check...
dpkg-query: no packages found matching psa-atmail
dpkg-query: no packages found matching psa-horde
dpkg-query: no packages found matching libapache2-modsecurity
WARNING: IP address registered in Plesk is invalid or broken: xxx.xxx.xxx.xxx
Panel version: 11.5.30 Update #47, last updated at June 19, 2014 07:32 AM
OS:
Distributor ID:Debian
Description:Debian GNU/Linux 7.6 (wheezy)
Release:7.6
Codename:wheezy
Upgrade log [URL] ....
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Jun 16, 2014
we have bought Plesk 11.5 3 months ago.
Is it possible to upgrade to 12? How do I have to proceed for the upgrade?
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Aug 22, 2007
I could not successfully upgrade glib-it's in use.
Sendmail was active..and using the library..and preventing me from upgrading.
Sadly...this simply may not be possible on my remote vps.
Does bash and ssh use glib? If could shut down everything that was using it..I have a chance at pulling this off.
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Jun 17, 2013
Over the weekend, I upgraded from Plesk 10.3 to Plesk 11.5, using the updater in the control panel. Everything seemed to go well. However, this morning I've noticed that some, not all, email accounts are having trouble logging into the server to send and receive mail. Other accounts are working fine.Via POP, I get this error: -ERR Temporary problem, please try again later
Via SMTP, I get this error:
535 auth failure
I see this in the maillog:
Jun 17 07:15:05 [server] courier-pop3d: LOGIN FAILED, user=[username], ip=[::ffff:xxx.xxx.xxx.xxx]
Jun 17 07:15:05 [server] courier-pop3d: authentication error: Input/output error
And this... Jun 17 07:24:50 [server] smtp_auth: FAILED: [email address] - password incorrect from [host] [xxx.xxx.xxx.xxx]
I replaced the server name, username, host, and IP in the above.
Here are the steps I've tried so far.
- Changing the password using the control panel.
- Updating the number of daemons in authdaemonrc
- Restarting the services
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Jun 27, 2014
I just upgraded my Plesk on Ubuntu (vServer) yesterday. But after the upgrade I couldn't login to the Panel anymore because all I get when I try to reach the panel (https://panel.examplesite.com:8443) is a white screen.
I rebooted the server and restarted the panel as well as Apache several times with no change.
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Sep 29, 2014
I have upgraded php 5.5 using below steps,
===
sudo add-apt-repository ppandrej/php5
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install php5
==
Its also upgrading Apache from 2.2 to 2.4 and after installation, it break my Apache configuration and getting configuration errors when adding domains from Plesk etc.
Is there any proper way to upgrade PHP 5.5 in Plesk 12.0(Ubuntu 12.04)...
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Oct 12, 2014
How to upgrade mySQL from version 5.1 to version 5.5 on linux. We're running CentOS version 6.3 with Plesk 11.09.
The approach outlined here [URL] .... seems like the way to go. I want to be sure that I don't adversely affect our installation.
If it is at all relevant we're running a Joomla 2.5 site.
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May 29, 2014
I have a VPS on Webfusion which auto upgraded last night to Plesk 11.5.30 #45. However, I used to have the domain registrar, 123-reg manage my DNS & now since the upgrade I've lost access to all emails & ftp access but the domains still work ok.
whether I should delete all DNS records at 123-reg & point to my VPS now? The DNS parameters in Plesk appear to be different to 123-reg. I
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May 18, 2015
Following the update from 11 to Plesk 12 (and installing latest Ubuntu fixes), the Plesk panel access is broken. Welcome page says:Can not load key: key is empty.And of course, no way to login the mgt interface. All services appear up, so this is only affecting the panel web service.
Fishing out the panel.log, it appears to be at a lower level than I initially thought (see below): experiencing issues after updating from 11 to 12 on Ubuntu (12)?
[18-May-2015 19:46:34 Europe/Berlin] PHP Warning: file_get_contents(/opt/psa/var/sso.sp.pem): failed to open stream: No such file or directory; File: /opt/psa/admin/externals/xmlseclibs.php, Line: 285
[18-May-2015 19:46:34 Europe/Berlin] Exception: PHP Warning: file_get_contents(/opt/psa/var/sso.sp.pem): failed to open stream: No such file or directory; File: /opt/psa/admin/externals/xmlseclibs.php, Line: 285
file: /opt/psa/admin/plib/Smb/Exception/Syntax.php
line: 56
[code]..
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Oct 18, 2014
After finishing the upgrade from 11.5 to 12.0.18 I checked the system time which was wrong and no timezone was selected ....
So I switched to my timezone (GMT +3) and corrected the clock from the above settings cause it was 5 minutes behind
saved .... since then the time is showing 1 hour later the selected one. like GMT+4.
No matter if I change it manually it returns there.
in order for the server to work correctly i changed the timezone to GMT+2. OK the time is corrected - although wrong cause it should be 1 hour earlier, but anyways Now all incoming email messages still show one hour late as received date. So I tried restarting courier-imap
# service courier-imap restart
courier-imap: unrecognized service
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Aug 18, 2014
I have upgraded from 10 to 12 and now I have "502 Bad Gateway nginx" error. I have atached logas..
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Sep 27, 2014
After upgrading (i know, i should not do this) from Squeeze to Wheezy i have got a problem with subscriptions.Plesk seems to work, but whein i want do manage a domain/hosting. i just see 502 Bad Gateway nginxClick to expand...
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Dec 25, 2014
is it safe to Upgrade Parallels 11.5 to 12 from the panel
OS
CentOS 5.10 (Final)
Panel version11.5.30 Update #48, last updated at Nov 21, 2014 02:33 PM
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Sep 29, 2014
I get a blank page after upgrading to the latest version using the automatic update.
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Nov 19, 2014
I can't install or remove anything. when i click on continue it's just refreshes the page and come backs to the list.
I have checked error log and the latest error log is ERR [panel] Specified column "isAllowed1 is not in the row.
And i don't think this error related to the problem. When I click on continue it does not create any line in the error log.
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Sep 22, 2014
I'm still using Plesk 11.5.30 and MySql 5.5.39. That was discribed here how to update. But i need to have a MySql 5.6.5 (minimum) for some software (This version is over 2 years old). I'm using CentOs 6.5. and PHP 5.4.33
how to do this, whitout breaking plesk 11.5.30??
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Jun 19, 2014
I am getting the "Function not implemented" error from /var/log/plesk/panel.log I have tried reading this article but it seems to only apply to Ubuntu and I am running CentOS 6 x64
How can I get past this error?
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Jun 27, 2014
I have upgraded from 11.5 to 12, and now if I try to open Plesk on the port 8443 I have this error:
502 Bad Gateway
nginx
This is the log:
2014/06/27 18:25:13 [crit] 1629#0: *2 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: 79.49.206.176, server: , request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "87.106.85.233:8443"
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