to decrease the load in server when daily backup start ,, the load in server before backup start from 0.80 to 1.20 after daily backup started i see very high load from 16.00 to 32 and 40
any solve for decrease load when backup start from 3 to 7 alot
I have my WHM/cPanel installation configured with daily and weekly backups. I checked at what time of the day the server load was at the minimum and configured the cPanel backup cron to run then.
The problem now is: Backing up a few hundred accounts results in a high server load. My server configuration:
Dual Processor Quad Core Xeon 5335 2.0GHz with 4GB RAM and 2 x 250GB SATA HDD hosted at SoftLayer.
The accounts are located on the first HDD and the backup archives are placed on the second HDD.
What can I do about this? I'd like to take daily backups of all accounts but not if my server load increases up to 10... That kind of renders the cPanel backup feature useless if it doesn't even work on a powerful server like this one...
Would it help if I use an application such as Auto Nice Daemon to give the backup process a lower priority? But then again that won't work on the MySQL dumps? And I think it's not a CPU problem but an I/O wait problem? Other processes have to wait for disk access because the disk-intensive backup process is running?
2 of our our servers are suddenly experiencing high Wait I/O Times, and high Load Averages during the backup process. During this period the Plesk grinds to a halt, sometimes crashing out completely (although SSh is still possible. We have been in talks with our server suppliers (assuming this would be node related) however they have done a lot of testing etc. and categorically state the node is fine , with no other users affecting it.
STEPS TO REPRODUCE : We backup the server using the scheduled backup service and Wait I/O immediately goes up.
ACTUAL RESULT: Plesk downtime / Website downtime
EXPECTED RESULT: No downtime, successful back up
Some other info : All other processes (MYSQL, apache, Nginx etc) are all running between 1 - 10%
Partition "/usr" utilization 4.2% used (1.81 GB of 43.3 GB) (?) Partition "/var" utilization 50.6% used (61.8 GB of 122 GB) (?)
We are struggling to identify what has changed on the server that would cause this sudden change.
customer of HostV's VPS hosting, and for the past 3 days, at almost exactly 01:20 GMT, CPU load jumps from an average of about 0.10 to 2.5+, stays there for over an hour, then drops back down.
During this time, there are NO processes on my virtual server using any significant amount of CPU time, memory, or IO. No cron jobs are running on my server, etc.
Note the output from 'uptime' below (I was monitoring it waiting for the problem to occur, which it did at exactly the time I expected):
00:32:05 up 22:01, 2 users, load average: 0.09, 0.11, 0.08 00:32:07 up 22:01, 2 users, load average: 0.08, 0.11, 0.08 01:09:49 up 22:39, 2 users, load average: 0.06, 0.03, 0.00 01:10:03 up 22:39, 2 users, load average: 0.05, 0.03, 0.00 01:19:26 up 22:48, 2 users, load average: 0.46, 0.16, 0.04 01:20:42 up 22:50, 2 users, load average: 1.53, 0.55, 0.18 01:21:39 up 22:51, 2 users, load average: 1.40, 0.67, 0.24 01:46:04 up 23:15, 2 users, load average: 3.06, 2.02, 1.52
Also note output from 'top', taken when load average was at 3.06 shown on the last line above:
My cpu usage is very low (0.1%) but wait time is at 9.0%, and I've seen this go as high as 70% during these times.
So, basically, there is a problem that exists on the host node somewhere that is causing my site to become effectively unresponsive (page load 20 seconds+ - measured), and it happens every single day at the same time.
So, why am I posting it here instead of logging a trouble ticket? I have logged a trouble ticket, but when I encountered the problem yesterday, despite logging it as "CRITICAL", I had to wait nearly 5 hours for a response, which effectively said not much beyond "we noticed the problem and fixed it and we're monitoring it". So I don't have a lot of faith that today's response will be any better.
I moved to HostV because of similar problems I was encountering with shared hosting, and was assured before signing up that the kind of problem I'm seeing doesn't happen. So now I'm outlaying more than 10 times the cost for almost exactly the same problems and a similarly unhelpful response to it.
By publicly posting the problem, I would hope that someone at HostV will ensure the problem is addressed PROPERLY, rather than bandaided again, and that hopefully we will all be able to see just how good HostV's support CAN be (as evidenced in another similar post).
I await HostV/Cirtex's response.
As shown in the uptime information about, server uptime is 23:15, because I rebooted the virtual server yesterday to see if that helped. It didn't. In fact, it took over 20 minutes for the server to come back up, which is why I'm not going to do it again.
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 have seen resellerzoom provides daily full backup to their customer. How should i configure my WHM so that it create daily backup and delete old backup.
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 just wana know is it safe to do remote daily backup for about 70,000 files?
file sizes is about 200kb and every day i have about 1000 new file, so rsync first should check old files becouse i am deleting about 30-50 of them daily and them backup new 1000 files , so how much it will take every time to compare that 70,000 files?
i have 2 option now:
1-using second hdd and raid 1 2-using rsync and backuping to my second server , so i can save about $70 each month.
I'm new to Parallels Panel. I use version 11.0.9. I want to backup mysql database daily. First of all, what is the best way for daily database backup in plesk. I'm trying to do this in Scheduled Tasks and I use mysqldump command although I'm not sure.
I chose the time and day first and then I switched on the task. I typed the following command to Command line.
This created only a blank file. When I use this without gzip, nothing changes.
1- Is mysqldump right command for database backup? 2- Should I define full path for mysqldump, gzip and database? If so, how can I find out the full path of mysqldump, gzip and my database? Because I can't see their locations in panel. 3- I can't see any error message. There is not any log file in httpdocs folder. Where does the log file exist? 4- It is weird but should the username be "database user" or should I write "root" ?
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