Two of my VPS's with a company are now showing very high memory loads, even after a reboot, both server are located on different nodes and they both shot up to high ram loads at the same time today(9amGMT) ....
I have a Quad Core Xeon server with 2 GB RAM. The server has some high traffic websites & at peak hours (4-5 hrs a day) the server load remains 10.0 to 50.0.
The sites on the server load very slow at these times. Here's the top result during heavy load
I normally don't like too bother others with my problems but this time It seems I have no choice since I spent the whole afternoon trying to find out what the problem was and couldn't solve it "entirely".
Here's some hardware info: Processor Information Processor #1 Vendor: GenuineIntel Processor #1 Name: Intel(R) Xeon(R) CPU 3050 @ 2.13GHz Processor #1 speed: 2133.418 MHz Processor #1 cache size: 2048 KB
Memory Information Memory: 1031324k/1048320k available (2182k kernel code, 16308k reserved, 914k data, 240k init, 130816k highmem)
System Information Linux **************** 2.6.20-1.2320.fc5smp #1 SMP Tue Jun 12 19:40:16 EDT 2007 i686 i686 i386 GNU/Linux
Running Fedora Core 5 and working for over half year with almost no major problems, but today something totally weird just happened...
After waking up I logged to the server and realized how slow it was, I went to see more about that and for my surprise the loading was around 8 so I went to the mail queue to see if there were a few thousand mails, there were 16 mails... So I went to the see CPU % processes at WHM and I was stunted to see around 30 processes allegedly using over 11500% of the CPU or more!
My first thought was that cPanel smoked something before releasing a last update and I didn't realized it immediately so I downgraded from Release to Stable. Nothing happened and I lost my time with this overheated overloaded and over-everything and I didn't changed any configuration.
I changed many old configs that... I don't know, might crashed with something that might changed... I was trying and looking for anything.
The load was getting up instead of down, it went up to around 60.
The final conclusion is that whenever I turn the MySQL on I got overwhelming loads otherwise the other services "only" give me around 1.5 of load but still very unstable.
I'm getting a little tired so my explanation may be a little confusing, sorry about that.
Anybody knows what this is? Did this ever happened to you? Extremely high loads without an obvious reason? If anyone could help me I would be thankful for that, I'm getting kind of desperate.
We are having a problem with our Linux dedicated server. At time we are getting high server loads witch is causing the server to go down and reboot. This problem has been going on for over a month now and still liquid web can not tell me what is the cause of the high loads. We have upgraded our RAM to 2 GB. This look to fix the problem for the first week but now we are back to having high loads and downtime.
I'm not a IT person so do not know how to find the problem. Can anyone tell me what I can do the locate the problem. I do know how to access and do some things in the root but do not know enough to find and fix this issue.
has anyone else noticed an unusually high load occurring from 9 till 11 EEST time on their servers?
I've been getting high loads everyday this week at exactly these times.
I'm thinking that this is a crawler/bot that is causing the loads, i've already installed dos deflate and there hasn't been more than 100 connections from the same ip, so I'm ruling out any DOS attack ... besides, what kind of attack only takes place for 2 hours a day at exactly the same time?
I'm on a cpanel system and would like to know which logs to take a look at to determine the cause.
I currently have a vps server from GIGEServers, running at 512mb of dedicated and 1024mb spike it seems like apache is using alot of resources, does anyone know of a less hog, or tips on tweaking it, and the same for mysql server any tips on tweaking.
We just upgraded to VBulletin 3.6.5, and are experiencing strange behavior. My forums are on a dedicated server, 27,000 users.
We'll be running along fine with loads of .5-2.00, etc. Then suddenly, the loads start climbing to 50, 70, 85+. We've been trying to figure out why. We even went on a different (much more robust) server, still the same result. This only started happening after the upgrade. Restarting the server corrects the problem, but only until it happens again. It can happen at anytime - during peak or off peak. The server may run for an hour or two until this happens, or it can happen 10 minutes after a restart.
Late last night when loads were normal we benched the server hard, and it ran just fine. We just can't figure out where this load spike is coming from.
Server info below:
Servers: Mysql: server version: 5.0.27-log PHP: PHP 5.1.6 (cli) Zend Engine v2.1.0, Apache Server version: Apache/2.2.3 Kernel: 2.6.19-1.2911.fc6 #1 SMP
Server: Pentium III with 1 gig of ram 15k RPM SCSI Raid 5 1 Gig RAM
I got 5 wordpress and 5 statics website on this server and 100 visitors by 24H00 each day.
Question 1 : Why the memory is so low and the swap so high ? Question 2 : Why i don't find high usage process in top command ? Question 3 How can i resolve this problem ?
my VPS is using between 105mb of memory and it peeked at 127 mb of memory. But I'm only allowed 128mb of memory. It seems to be high and I want to know how to lower it
here's a picture of the list of processes
[url]
I have basically no sites on it just a few testing and it's only used 4.74mb of bandwith, I can't understand what is causing so much resource usage.
Am using Hypervm,my all vms are not using more than 512 MB memory but when i click on server as localhost the there is show maximum memory usage I have total 8 GB it always show 5-6 GB usage and never drop down, How can I fix this matters?
I purchased a VPS at wiredtree to upload a site that is in the works so that it would be "ready" once it was launched (had it sitting on a shared server before). So I have this domain on there, as well as a small wordpress blog. In total I'm get a very miniscule trickle of visitors to these websites (as they are not officially launched), around 100 visits per day, many of which are only 1 pageview visits.
My problem is, my server is already idling over its memory limit of 256mb. This is causing major slowdowns, and processes like cpanel are constantly be killed and I can't login.
Does anyone have any idea what is causing my high memory usage? I just can't image that the visitors I am getting are doing much, as for the majority of the day I have absolutely no one viewing my domains, yet my memory usage is still over the limit.
Wiredtree support says its up to me to optimize my msql/php scripts etc for low mem usage, but I don't see how this will help when there is no one using them in the first place.
what 'committed memory' could mean? Every time it gets to high I experience some problems with my site. There is also a lot of memory put in cache. I saw this in a graph using the application munin. How can I prevent this? Are there some configuration options in mysql or apache such that I can control this? How can I find out which process is using all the memory? And most important what does 'committed memory' actually mean...
The graph can be found at
users.pandora.be/enyo/memory-day.png
(apache+mysql+php where the peak indicates 10 000 visitors approximately)
In the last day or two I've been having issues with memory on one of by boxes.
Something eats it all up, so the OS starts swapping, the I/O wait shoots up, and soon the load is up in the hundreds and the thing is totally useless.
During the day today I've tracked the something to occational apache processes. It seems that occationally a thread is started which uses upwards of 150M of memory. These threads are obvioudly doing something heavyweight and take a while to complete. When I get a few of them running together it soons finishes off all my available memory. Below is an extract from top when a couple of these threads are running.
Code: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10230 nobody 25 0 197m 27m 9392 R 45.5 2.9 0:03.27 /usr/local/apache/bin/httpd -DSSL 10231 nobody 25 0 197m 25m 8376 R 52.8 2.7 0:01.60 /usr/local/apache/bin/httpd -DSSL I was wondering if anyone could help out by suggesting some ways of tracking down what page/script it which uses so much memory. It's a cPanel server so it's not really practical to tail -f the apache logs (not knowing which account it is means I don't know which file to watch).
I'm currently running vBulletin & two wordpress powered blogs on my box. Number of simultaneous users is about 200~250 and about 15~20 logged in users.
The memory usage is constantly in the range of 1.8 GB - 2.00 GB. Considering that total physical RAM my box has is 2 GB, the memory usage, I believe is exceptionally high.
The same site was running very well on shared hosting environment and also on VPS [with just 512 MB RAM] very fine.
What should I do to bring the memory consumption to minimum (required to run the site well?)
for the last few days, i am facing high memory usage up to 90%.
Memory usage get's high, even if i don't have many visitors online. I have to restart httpd to get the memory to normal. some times, server loads, get's high aswell.
In error logs (only unusual things i see):
Code: [Sat Jan 6 10:37:04 2007] [error] mod_gzip: TRANSMIT_ERROR:ISMEM:104 [Sat Jan 6 10:37:25 2007] [error] mod_gzip: TRANSMIT_ERROR:ISMEM:104
We are currently running plesk 11.5 and over the last few months, the apache memory usage has been very high. On investigation we have gone through the logs and we can't find a cause.
I can issue a service httpd restart and the memory drops for about 30 minutes and then we see the apache memory grow to almost 1.5 - 2GB. Why this keeps happening?
cpu speed/type single or dual cpus): Intel Xeon 2x3.6 how much memory installed: 2048MB hard drive type/configuration: 2x160GB SATA linux distributor or windows version: CentOS 4.5 x86_64 apache/IIS version: apache 1.3.37 PHP version: php 4.4.7 MySQL version: 4.1.22-standard
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 19017 teknoloj 16 0 0 0 0 Z 27 0.0 0:00.93 php <defunct> 17751 mysql 15 0 241m 55m 3148 S 25 2.8 0:53.73 mysqld 19025 root 18 0 16204 6104 1392 D 6 0.3 0:00.17 cpcpan_check_in 18968 sohbetgo 16 0 44596 7540 3556 S 5 0.4 0:00.44 php 18552 nobody 15 0 32636 4208 1204 S 2 0.2 0:00.28 httpd 18808 resimsit 17 0 46944 9960 3616 R 1 0.5 0:00.23 php 18896 resimsit 16 0 46944 9984 3616 D 1 0.5 0:00.08 php 18921 resimsit 17 0 46404 9444 3572 R 1 0.5 0:00.09 php 18819 nobody 17 0 32644 4176 1192 S 1 0.2 0:00.06 httpd 18868 haylazt 16 0 0 0 0 Z 1 0.0 0:00.48 php <defunct> 18871 nobody 15 0 32504 4056 1148 S 1 0.2 0:00.06 httpd 18892 root 16 0 6416 1180 756 R 1 0.1 0:00.24 top 18978 nobody 16 0 32504 4028 1132 S 1 0.2 0:00.02 httpd 11 root 5 -10 0 0 0 S 0 0.0 0:24.56 events/1 2638 root 0 -20 0 0 0 S 0 0.0 0:16.96 loop0 2981 named 18 0 88016 2328 1152 S 0 0.1 8:44.12 named 3592 mailman 16 0 50316 2320 1828 S 0 0.1 0:00.78 python2.4
MySQL 4.1.22-standard uptime 0 0:39:9 Sat Jun 30 21:33:29 2007
__ Key __________________________________________________ _______________ Buffer used 19.34M of 80.00M %Used: 24.17 Current 33.70M %Usage: 42.12 Write hit 32.57% Read hit 98.45%
__ Tables __________________________________________________ ____________ Open 486 of 1800 %Cache: 27.00 Opened 702 0.3/s
__ Connections __________________________________________________ _______ Max used 12 of 500 %Max: 2.40 Total 4.33k 1.8/s
__ Created Temp __________________________________________________ ______ Disk table 26 0.0/s Table 2.23k 1.0/s File 428 0.2/s
6-7 vbulletin sites-vbseo and other scripts online avarage; 120 registered user ve 500+ unregistered user cookie timeout : 7200 unique hit : 15000-20000
KeepAlive ON MaxKeepAliveRequests 100 KeepAliveTimeout 2 MinSpareServers 10 MaxSpareServers 15 StartServers 10 MaxClients 180 Maxrequestsperchild value 1000
[root@server ~]# uname -a
Linux server.xxxxx 2.6.9-55.ELsmp #1 SMP Wed May 2 14:04:42 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
[root@server ~]# ulimit -aH
core file size (blocks, -c) 1000000 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited pending signals (-i) 1024 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 4096 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 14335 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
[root@server ~]# cat /proc/cpuinfo
processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.322 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cid cx16 xtpr bogomips : 7207.08 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:
processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.322 cache size : 2048 KB physical id : 3 siblings : 2 core id : 3 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cid cx16 xtpr bogomips : 7199.29 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:
processor : 2 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.322 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cid cx16 xtpr bogomips : 7509.03 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:
processor : 3 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Xeon(TM) CPU 3.60GHz stepping : 10 cpu MHz : 3600.322 cache size : 2048 KB physical id : 3 siblings : 2 core id : 3 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl est tm2 cid cx16 xtpr bogomips : 7199.26 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:
I have a linux server that is only hosting one site , and although the httpd and mysql are working well , then the server load is high and when I restart the server the server load is high till the swap accelerates to 100% and then it uses the memory alot.
I was wondering about a specific VPS package I was considering. I have around 80~90 sites (and therefore accounts) that I need a nice place to call home, but I am wondering if maybe I would be asking too much of this VPS package:
40GB Disk Space 1000GB Transfer P4 3.2GHz 800MHz Front Side Bus 1GB Guaranteed RAM | 2GB Burst RAM CentOS 4 50% of CPU Guaranteed | Burst to...I don't remember.
All of the sites I would be hosting easily take up less than 100MB of space each. The most any of them use is 2-5GB of transfer. I know these levels are no where near my allotted resources, but do you think that serving 80-90 accounts like this is too much server load? There will only be 2 VPS' on each server, guaranteed.
Anyone with experience with a VPS and a decent set of accounts/domains, please let me know what you think.
I have a shared host with them for a few months which the disk usage for home/backup is usually around 85-95%. Right now I am experiencing very slow download speed. What about yours?
Server Load 2.92 (8 cpus) Memory Used 42.6 % Swap Used 0.01 % Disk /dev/sdc1 (/home) 91 % Disk /dev/sdd1 (/backup) 90 % Disk /dev/sde1 (/backup/cpbackup/weekly) 43 % Disk /dev/ram0 (/ramdisk) 24 % Disk /dev/sdb1 (/) 22 %