i have 10 web sites running on my server, but they are really small talking about traffic, according to statistics, my "star web site" have 300 visits per day
I also have a few shoutcast services running on my server, but i think ther are fine
According to cpanel, yesterday I had this cpu usage (only showing the top process)
User Domain %CPU %MEM MySQL Processes
nobody 79.10 25.07 0.0
I tried to kill all "nobody" process, and then is everythin OK but after 5 minutes is happening again, the worst thing is that every minute this cpu usage is increasing untillall my web sites crashes (just website , shoutcast service works fine)
the process os "nobody" is: /usr/local/apache/bin/httpd -k start -DSSL
a topic long time ago that my server load is frequently high.
I'm talking about something like this Server Load 158.86 Memory Used 28.2 % Swap Used 99.57 %
[url]
The only way to solve this problem is to identify the load earlier and kill all httpd process. What I did was
#killall -9 httpd #killall -9 httpd #killall -9 httpd x 30~40 times until no pid process found & the server load is back to normal.
On previous thread, I tried to update mysql & php and it works,
Right now again I am experiencing high server load again...
I'm very sure it's caused by httpd but I am still unable to find out the real cause of the problem and which account user is the culprit for causing this high load.
Can someone assist me by telling me where/how to begin with?
I have a site that is eating up my server resources and need to know what the best solution for this is. I'm thinking of getting another server just for mysql but do not know what specs the server should be to handle the current traffic/database load and have the site run smoothly without slowing down to a snail's pace.
An alternative is to get another server just for the videos being served and leave the database and html on the current server. This is where I'm stuck and don't know what route to take with this.
I've attached screenshots of top and bandwidth usage per day. Hopefully with this information you could tell me if I need another server or if there are any things I can do to the current server to help things move faster.
I noticed high cpu usage on my server since a couple of days ago. I neither updated software nor changed the configurations on the server. The server load was about 0.5 ~ 1.0 but now the average CPU load does not go below 5.0
when I stop apache (1.3) the load goes down and as soon as I start it up the load start increasing.
I checked for DoS but it seems nothing exists of this type.
I tried to follow the access_log file but from the first view nothing is strange there.
I don't have any control panel on the server. just Apache, FTP and SSH installed.
I am running in a High load problem lately. I have one of those cheap 1and1 servers which was running fine until 2 weeks ago. Once I rebooted accidentaly, it did not come back with some unrepairable kernel errors and I had to re-image it.
I chose to reimage the server with CentOS 5, for better support. The new re-image worked fine for some days, at least so I thought and now I am having high loads. The server crashes if not monitored every moment as the load is unpredictable.
Just a restart of the Apache will bring the server back to normality, but I am not sure if it is apache or some other script to be blamed. I have beeing monitoring through apache server-status, but I cannot organize something unusual in the high load moments.
12:00:29 AM CPU %user %nice %system %iowait %steal %idle 12:10:01 AM all 9.14 0.00 5.52 44.66 0.00 40.68 12:20:14 AM all 6.83 0.00 3.98 27.88 0.00 61.32 12:30:10 AM all 6.44 0.00 4.20 81.25 0.00 8.11 12:40:09 AM all 5.25 0.00 4.09 81.93 0.00 8.73 12:50:15 AM all 5.11 0.00 3.79 90.74 0.00 0.36 01:00:07 AM all 7.22 0.00 4.52 57.11 0.00 31.15 01:10:13 AM all 6.89 0.00 4.01 55.38 0.00 33.71 01:20:14 AM all 4.37 0.00 3.27 41.88 0.00 50.48 01:30:25 AM all 4.26 0.00 3.29 63.42 0.00 29.03 01:40:06 AM all 27.18 0.00 4.75 58.27 0.00 9.80 01:50:03 AM all 29.64 0.00 6.61 51.50 0.00 12.25 02:00:07 AM all 27.00 0.00 8.48 55.49 0.00 9.03 02:10:10 AM all 19.29 0.00 4.97 73.80 0.00 1.94 02:20:04 AM all 37.85 0.00 6.78 40.70 0.00 14.67 02:30:05 AM all 15.65 0.00 4.80 68.47 0.00 11.08 02:40:08 AM all 9.06 0.00 5.60 37.49 0.00 47.86 02:50:07 AM all 5.36 0.00 3.62 42.29 0.00 48.73 03:00:02 AM all 6.05 0.00 4.08 47.27 0.00 42.60 03:10:02 AM all 4.22 0.00 3.68 38.17 0.00 53.93 03:20:02 AM all 4.06 0.00 3.75 41.37 0.00 50.82 03:30:22 AM all 4.42 0.00 3.93 45.25 0.00 46.41 03:40:11 AM all 4.34 0.00 3.95 39.58 0.00 52.13 03:50:02 AM all 4.67 0.00 4.01 32.53 0.00 58.80 04:00:08 AM all 3.72 0.00 3.87 28.40 0.00 64.02 04:10:02 AM all 13.49 0.00 6.58 20.82 0.00 59.10 04:20:01 AM all 6.70 0.00 4.63 6.06 0.00 82.61 04:30:02 AM all 1.44 0.00 1.21 4.75 0.00 92.59 04:40:01 AM all 12.42 0.00 8.12 7.65 0.00 71.81 04:50:02 AM all 1.43 0.00 1.07 4.02 0.00 93.47 05:00:02 AM all 1.60 0.00 1.40 8.62 0.00 88.38 05:10:10 AM all 3.80 0.00 3.02 17.86 0.00 75.32 05:20:06 AM all 5.10 0.00 4.22 23.34 0.00 67.34 05:30:02 AM all 1.54 0.00 1.40 11.22 0.00 85.85 05:40:05 AM all 1.75 0.00 1.89 13.12 0.00 83.23 05:50:12 AM all 2.15 0.00 2.22 18.92 0.00 76.72 06:00:02 AM all 1.92 0.00 2.01 12.87 0.00 83.20 06:10:02 AM all 2.27 0.00 2.16 11.53 0.00 84.04 06:20:03 AM all 3.56 0.00 3.02 25.26 0.00 68.16 06:30:10 AM all 2.66 0.00 2.05 18.13 0.00 77.16 06:40:02 AM all 2.58 0.00 2.25 22.87 0.00 72.30 06:50:02 AM all 2.68 0.00 1.92 15.77 0.00 79.63 07:00:03 AM all 3.06 0.00 2.48 26.01 0.00 68.46 07:10:03 AM all 3.65 0.00 3.20 36.54 0.00 56.61
07:10:03 AM CPU %user %nice %system %iowait %steal %idle 07:20:03 AM all 4.40 0.00 3.28 43.86 0.00 48.46 07:30:02 AM all 4.10 0.00 3.17 31.30 0.00 61.43 07:40:06 AM all 7.67 0.00 3.95 50.79 0.00 37.59 07:50:02 AM all 4.72 0.00 3.11 44.30 0.00 47.86 08:00:03 AM all 5.57 0.00 3.72 47.15 0.00 43.56 08:10:07 AM all 10.66 0.00 3.59 71.62 0.00 14.13 08:20:17 AM all 5.67 0.00 3.42 58.81 0.00 32.10 08:30:10 AM all 11.12 0.00 3.49 76.71 0.00 8.67 08:40:03 AM all 7.00 0.00 3.36 47.94 0.00 41.71 Average: all 7.53 0.00 3.76 38.90 0.00 49.81 Some configurations: The reimage partittioning looks like this:
processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 3 model name : Intel(R) Pentium(R) 4 CPU 2.80GHz stepping : 4 cpu MHz : 2793.324 cache size : 1024 KB
So my server is "unresponsive" for abour 18 hours, burst net didnt answer my tickets and I dont know what to do. Ive been with this setup for almost 5 months with no problems, No changes have been made to hardware or software.
I have some webs with 30K/40K visits each day (it's not too much)... A smaller CPU with 1Gb RAM with cPanel and Apache 1.3 worked perfectly, and now with a bigger computer and plesk I see this...
More info on server-status
Server Version: Apache/2.0.54 (Fedora) Server Built: Jul 26 2006 11:00:19
Current Time: Monday, 28-Apr-2008 23:40:53 CEST Restart Time: Monday, 28-Apr-2008 23:25:38 CEST Parent Server Generation: 0 Server uptime: 15 minutes 14 seconds Total accesses: 13025 - Total Traffic: 44.9 MB CPU Usage: u1183.04 s50.79 cu.01 cs0 - 135% CPU load 14.3 requests/sec - 50.3 kB/second - 3616 B/request 34 requests currently being processed, 67 idle workers
I have a server that has server load showing at 25-40 (once it was even 53!), running like that for hours. The server has 4 cpus - and yet the sites on the server seem to run fine when I check them. What I'm wondering is, what exactly is load in this context; and how can load run so high like that without the server crashing?
According to top, the load is caused by httpd processes running under user 'nobody', that often take up double digit CPU percentage.
Does Apache always run under 'nobody'?
Is there any way to trace an httpd processes - which account it's for, or which physical script or URL is calling it?
And for top itself, the TIME field on one server of mine is in the format xx:xx (e.g. 3:25), on another it's TIME+ and in the format xx:xx.xx (e.g. 30:02.77). What exactly does this mean? I would asume it's minutes:seconds and minutes:seconds:hundredths, but while watching top it doesn't seem to correlate with that.
The last 2-3 days my websites on my vps all started acting funny. Randomly throughout the day they will all just stop loading. If you go to one of my sites they will just load and load and load and eventually time out after 5 minutes.
To fix this problem, all I have to do is reset Apache in my WHM. Everything will be fine for awhile until it decides to stop loading again.
I've been talking to tech support for 2 days. They're out of options. They tried banning some IPs as they thought I might be getting hacked. They tried moving me to a different host machine. They've checked all my logs... there are no errors or problems with the vps. The server load is always very low. Memory is always very low.
I run about 15-20 websites on this VPS. Two of them are vbulletin (v. 3.6.4 and v3.6.8) and all the rest are wordpress).
My VPS is hosted with ServInt.
Server Version: Apache/1.3.39 (Unix) PHP/5.2.4 mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 mysql (5.0.45-community-log)
I get these emails all day: httpd failed @ Wed Jan 9 06:10:42 2008. A restart was attempted automagically.
I am completely out of ideas and options. Can anyone think of something? Think outside the box... make random suggestions. I don't care, I need to try something.
I most recently added 3 or so brand new websites to my vps about a week ago. However, they are just running wordpress so I can't imagine they're the problem.
Our server is running; Plesk 11.0.9 and CentOS 5.7 it has a Q8200 CPU @ 2.33GHz and 2GB of RAM. Now there are just two websites on the server plus a couple of redirects/forwarding domains, although lots of domains are still on the server but turned off in Plesk. Both websites are OSCommerce sites and I just need to keep these sites going until the end of the year when we will switch to our new Joomla based website.
We have seen an increasing number of server crashes and after various checks of the logs, fitting a new BIOS battery, check of the hardware by EasySpace who host the server, installation of ClamAV, LMD and RKHunter (which did find some Trojans and Suspect software), I have traced it down to some external Http activity that is taking all of my CPU time and RAM. Here is a screen capture of the Htop listing and when I killed these processes the CPU and RAM went back to normal. The problem is that I usually have to restart the HTTPD service and sometimes things get so bad that the server crashes and I have to request a power cycle.
My VPS holds about 80 domains and low-use accounts.
Every night, from around 1.30am, the load suddenly skyrockets and will usually be around 5 to 10 for a few hours. Occasionally it'll spike to 30+ for a few minutes.
I had some antispam software running, and a couple of other packages (mail queues, mail manage etc), so I disabled all of that and removed all the crontab entries etc.
It's not really made any difference.
I can see the load stats going back 8 hours, as part of the ASSP spam package (I've just left the ASSP server load cron running just so I can continue monitoring it!)
Can the apparent load on my VPS be caused by other VPS's on the same node?? So in reality, my load is fine but is being affected by other people's VPS's?
I hope that makes sense. I'm 99% sure that my VPS is 'clean' (in so far as cron entries)
I'm asking the question because I took a second VPS on the same node and that one too has high loads overnight when there's nothing running on it (ie, no add-on software, no Cpanel accounts added)
I have a VPS with LXadmin control panel and 1024 Ram.
the memory always 333-450 but now it is more than 800 and the VPS stopped I restarted it many times but after restarting it the memory gone crazy again.
So, how to know what causes high load and eating my Memory?
i was previously using maxclients 256 in httpd.conf and the load was normal even when the server was processing 256 requests..
recently i had changed it to 320 coz of which my load had increased a lot.. Now when i have decreased it back to 256 the load is still high even when the no of requests are just 150..
How can you tell if your server was a victim of a DDOS attack? Server load goes so high that you cannot get in via SSH, and the server has to be power cycled to get back online. When it comes back online, load goes back up, we shut apache down, and the let the load come back down and then restart apache and everything is fine. Any way to determine what caused the load to skyrocket? System has APF, BFD, and mod_evasive installed.
I have one large website , when i put this website in one server i mean by one server is making the website work with mysql and httpd in one server no external server it's load seems to be on 1 - 5 but when i but the mysql on other server the load got high and i got high httpd connections , also when i try to see the the amount connections between the servers it's too high in one of them and low in the other and i am always suffering from load .
here the details 192.168.0.1 the mysql server 192.168.0.2 httpd server
now i show this error for load in CPU/Memory/MySQL Usage
-------------------------------------------- /usr/sbin/mysqld --basedir/ --datadir/var/lib/mysql --usermysql --pid-file/var/lib/mysql/server.nogomhost.net.pid --skip-external-locking --------------------------------------------- this " mysql " used 90% and 80 % from CPU
And all account used sql 0.0 , why load mysql ?
2nd problem <<<<
some times my vps is down , i don't why
3rd prblem <<<
my vps is not working to some clients , i make allow after user's sent to me ip's by apf program
I am using rsync to transfer files (tar.gz) between servers. However, it makes server load increasing 3-4. Normally, server load can be around 1, but when doing the transfer, it can go up to 5+
Is there anyway to reduce the load when doing rsync?
