Plesk 12.x / Linux :: API Requests Suddenly Extremely Slow
May 4, 2015
In the last few days the responses from Plesk's XML API have been extremely slow. It's now taking an average of 45 seconds to handle an XML API request where it used to be more around 5 seconds. What would cause that? What service handles these requests on the server so I can try rebooting it?
Limestone's support is extremely slow. I just got a server with them to host VPSes, so I was inquiring about additional IPs in case I needed them.
Their first two responses were within 4-5 hours, which is bearable. However, yesterday, I actually needed to order more IPs and posted a new reply. I have yet to receive a reply after over 12 hours and my client has been left waiting to receive the additional IPs he ordered.
I haven't been with Limestone long, and I haven't had much other experience with their support, but I was unsure what else to do other than post this here and hopefully get a resolution.
I know their servers are unmanaged and pretty cheap, but I think they should still take the time to answer tickets in a decent amount of time.
Has anyone had similar experiences with Limestone?
After the installation I noticed that the server was very slow so I did a performace test on disk 2, here is the result: hdparm -tT /dev/hdd first gave me: Timing buffered disk reads: 6 MB in 3.52 seconds = 1.70 MB/sec Timing cached reads: 488 MB in 6.92 seconds = 70.57 MB/sec
then gave me: Timing cached reads: 392 MB in 2.01 seconds = 195.01 MB/sec Timing buffered disk reads: 2 MB in 3.62 seconds = 566.16 kB/sec
So I assumed something was wrong with the disk and replaced it with an 80 GB IDE disk (same setup as before) and got the following results: hdparm -tT /dev/hdd: Timing cached reads: 4 MB in 4.69 seconds = 872.73 kB/sec Timing buffered disk reads: 6 MB in 3.72 seconds = 1.61 MB/sec
It feels highly unlikely that there is something wrong with both of the IDE disks. So what can be the problem? Can you think of anything?
I have just gotten a new server and the ping results were pretty fine. However, when it comes to the download speed its horrible. What could be the issue?
I'm running into a problem with a relatively new (2 months old) server. I have just a few accounts on it, and I'm already noticing unusual loads, for the... load. After some benchmarking with bonnie++ (and plain old "dd") there is clearly a problem.
Isn't a write-speed over 7MB/s reasonable to expect? Also look at the low CPU times...
Anyway running the same test on a similar but older AND busier server showed much better results than this. In fact dd'ing a 1GB file from /dev/zero "finished" in about 10 seconds but then pegged the server at 99% iowait (wa) for a full three minutes (until done being written from cache I assume), bringing load to 15.00
That's all the info I have so far... the data center just replaced the card (which gave no errors) with no effect. Running these benchmark tests is about the extend of my hardware experience.
I have a client who has 3 to 4 websites. His websites are database driven mysql. When we transfered to a new server everything works. Then he requested a iconv and GD installations. Then it was installed. Now all of his sites is impossibly to view but its up. The rest of the clients are doing just fine. What do you think is the problem? we recompiled php several times already same thing.
FTP logins worked fine yesterday. Today I get a 530 Login incorrect.
I think the only change since yesterday was a server reboot.
/var/log/secure tells me that /etc/ftpusers is missing
Code: Jun 8 00:33:19 macbook proftpd: PAM unable to dlopen(/usr/lib64/security/pam_stack.so): /usr/lib64/security/pam_stack.so: cannot open shared object file: No such file or directory Jun 8 00:33:19 macbook proftpd: PAM adding faulty module: /usr/lib64/security/pam_stack.so Jun 8 00:33:19 macbook proftpd: pam_listfile(proftpd:auth): Couldn't open /etc/ftpusers
I have a domain which has a website built in Web Presence Builder. That allows people to go to http://domain.com. When they do that, for Google analytics purposes (I do not want Google Analytics to show 2 pages of http://domain.com and http://www.domain.com), I want to ensure that any request puts www. in it automatically.
I've been having trouble with my VPS for a while now. In the QoS alerts page in Virtuozzo it seems to be a problem with numtcpsock and tcprcvbuf, mainly numtcpsock.
Copy these into the browser: i18.photobucket.com/albums/b106/gnatfish/qosnumtcpsock2.jpg
We have a problem with a Plesk backup. We have about 300 domains, the scheduled task starts 23.30 and takes about 16 hours and thats not normal. Before it took about 9-10 hours for 'All configuration and content' and that was too long, so we set up for 'All configuration and content except mail'. It worked for a few days and then it started to take 14 - 16 hours for a server backup. We use Plesk 11.5 on CentOS 6 64bit.
OS CentOS 6.5 (Final) Plesk version 12.0.18 Update #6, last updated at July 2, 2014 11:13 AM
The system is up-to-date; last checked at June 27, 2014 04:43 AM
All current websites on the server seem to work fine any new subscriptions we cannot get working at all.
We can connect via FTP to new sites SOMETIMES - just cant get directory listing. When we can connect and get into a directory it slows down.
In Active mode: Command:MLSD Response:425 Unable to build data connection: Connection refused Error:Failed to retrieve directory listing​ Install Wordpress via the Parallels panel it loads and says it is all there, just can't log or display any pages. The default Parallels page is displayed.
Upload a html page via the File Manager in Parallels and it displays the default Parallels page.
Unpack the Wordpress tar file via File Manager and it displays the default Parallels page.
The Wordpress feature in Parallels says it is working fine, can't display any page, can't log in as it returns a 404 page or the default Parallels page.
Create a site in Presence builder and Parallels says there is a site. The default Parallels page is displayed when opening the site.
Go to DOMAINS and there is 0mb in space used and there are files listed in the File Manager - none of which can be displayed.
After upgrading to Plesk 12 the FTP connection has become very slow. Mode Security, Fail2Ban and Plesk Firewall have been enabled, the security is set to force sFTP and maximum security and in /etc/proftpd.d/ a conf file has been added to set the passive ports that have been opened in the Plesk Firewall (60000 to 62000)
Turning off the Mod Security does not solve the slow connection.
What can we do to detect the cause of the problem?
I've been having a few issues with the control panel navigation is running slow even though I have heaps of resources available and free. The server is located locally and have no problems surfing websites attached to the same server.
When I login as admin, it can take 25 seconds to load into the first screen.
CPU GenuineIntel, Intel(R) Xeon(R)CPU E5649 @ 2.53GHz Version Parallels Plesk v12.0.18_build1200140606.15 os_CentOS 6 OS CentOS 6.6 (Final) Memory Available 6GB used 2.5-3GB HDD: 300GB/ approx 130GB Free
I have tried issuing a /etc/init.d/psa restart command and has made no difference.
We are seeing intermittent slow responses from SMTP on a RHEL6 server running Qmail on Plesk 11.5. The response is being measured from a remote Zabbix server.
The response time seems to be slow (>10s) for a period of 2-3 minutes and then returns to normal (<1s). All other services continue to be ok during the period of slowness.
The server_args line in /etc/xinetd.d/smtp_psa already contains "-Rt0" and all the DNS servers in /etc/resolv.conf are resolving properly.
From looking at the maillog file the server was receiving about 35 SMTP connections a minute at the time of the slowdown. We have the server configured to use 2 x RBL's.
I wonder if we are hitting a limit on the maximum amount of SMTP connections. The file /var/qmail/control/concurrencyincoming does not exist so, according to the Qmail manual, there shouldn't be a limit on the number of incoming SMTP connections.
where to search. It appear thaht my free memory decrease each minute after reboot.When i restart it's ok but i see minute after minute the free memory is decreasing...
The command top don't show special process which explain my problem. I don't understand how a process can kill my memory but not immediatly but from reboot to after 4 or 5 hours uptime.
I have an old laptop with the following specification: Memory: 485 MiB, Processor: Genuine intel CPU T2300 @ 1.66 GHz ×2, OS Type: 32 bit, Disk: 78.1 GB,
I installed on it Ubuntu 12.04 LTS and I noticed that the overall system is very slow in responding. I tried to search about that in the internet and I found some articles talking about how to make Ubuntu 12.04 LTS run fast I applied all what they said including download LXDE desktop environment and then nothing different in the system response time.
Then I need to develop some android applications so, I download Android Studio (Beta) 0.8.6. The problem became worse than before whenever I tried to open the Android Studio the screen is frozen for some minutes then it took time to download the projects and initialize the work space also, when I tried to move the cursor he is move very slowly. When I tried to run my first application on the AVD it took three hours and still not run yet.
I delete the Android Studio and install it again several times, I was trying to solve the problem but still nothing change.
I`ve got a problem with plesk when hosting Wordpress, when using Wordpress navigating between the pages (front-end and back-end) server time seems to be 15 sec.I`ve checked CPU usage and that stays under 5%.
When I install Drupal or Concrete5 or any other application that uses PHP with MYSQL it runs very fast.I`ve already fine-tuned PHP / Apache2 / Nginx & Mysql to get the max possible performance out of it.
What i`m using for hardware: i7 920 2.6Ghz 24GB Ram LSI Raid controller 9260-8i RAID 10, 6 WD Black disks (internal speed goes about 450mb/sec) RAID 1, 2 x Samsung SSD Evo 840
Software: ESXI 5.5, optimised for maximum performance. (no standard config) PLESK VM has 8 cores, 16GB Ram and I/O access priority set to max.
If I move the PLESK VM to the SSD datastore it makes no difference.Again, the problem only happens when i`m installing Wordpress..I Also did a manual install of Wordpress, same issue..I`m going to try the older version of Wordpress (3.9) so see i`m having the same problems..Using the latest plesk 12 on Ubuntu 14 with trail license at the moment.
Today, without any change on the server side my single running website on my server started running low. After checking the running processes I realised I have these 8 processes running with high cpu load something that didn't had before.
4245 user 20 0 283m 103m 10m R 85.1 0.3 6:44.88 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4243 user 20 0 241m 68m 8736 R 83.8 0.2 6:33.45 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4259 user 20 0 254m 82m 8720 R 83.5 0.3 6:11.00 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4244 user 20 0 282m 103m 10m R 82.1 0.3 6:46.49 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4247 user 20 0 248m 76m 8712 R 78.8 0.2 6:50.31 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini 4264 user 20 0 258m 85m 8712 R 72.9 0.3 6:49.83 /usr/bin/php-cgi -c /var/www/vhosts/system/domain/etc/php.ini
apache error log doesn't show any warnings, errors.
I've got 25 domains on a Virtuozzo/Plesk8.6/CentOS5 VPS. Each domain has one up-to-date install of WordPress, most have very little traffic (average 200mb per month), maybe 2 domains get 5-7gb traffic per month.
I monitor port 80 connections and rarely see more than 10 at a time. That should in my opinion be no problem at all for a VPS with 768mb guaranteed ram and 2.4ghz cpu. I've got 30gb hard drive spare too.
But.... about 8 or 10 times a day it grinds to a complete halt: server load at 500-1000%, sites timing out, plesk takes 3mins to load, often I can't even connect with SSH, and the plesk web server, apache
80 seconds sounds like a huge amount of time for a MySQL insert to me! Does anyone know if this is likely to be the cause of my trouble? Some problem with Plesk and the database? Or could it be something else?
I ordered 5 servers from alphared.com, I spent an entire evening explaining to their sales person what I required.
In the end I decided on 4 Duo's and one P4. All to be connected with a Gigabit private Lan and to share 10Mbit premium bandwidth. I was promised it would take approx three days for this to be setup.
One week later I was met with an apology that the price quoted would unfortunately have to be tripled due to a mistake.
I paid $3,500 setup. Its now three weeks later and I have NO service.
I follow up every few days and am promised the service will be up soon.
STILL NO SERVICE!
Today I'm met with ANOTHER email saying it will be 10 days to allocate me 32 IP's. Not to mention the mess that every few days I'm asking how I want the servers setup.
I have missed my deadlines, my current provider is still billing me, my clients are moaning that I"m doing nothing about our current providers issues.
Are there any decent providers out there? or is finding someone who is competent and does what they say a pipedream?
They don't appear for some time if I kill them (a day or more). But it repeats again and again. One day there were 8 similar processes in total in max which used all 4 cores at 100% (and even ssh console was extremely slow to do something there).
I think that somebody is trying to make a small attack of some sort but I need to check it first. I tried to look at apache logs but there were too many posting requests from different IPs and no dublicates for little period of time so I had no success.
Anyway, that script worked for us for 4 years already and we didn't have any problems with it even on our old single core P4 2.8 ghz.
way to make sure is this an attack of some sort or just this script doesn't work correctly on our new machine?
Are there any ways to get IPs of visitors who are running posting.php with CPU overloading?
today i got a message from a client asking about hosting his video himself, catch is, he has a shitload of viewers, im looking at servers in the range of quad core (maybe dual quad), 8gig, 4 hdd raid10, gige uplink, however the kicker, depending on how out of whack my estimates are, 100 to 400mbit SUSTAINED upstream (spiking all the way to max'n that 'little' gige pipe)
Has anyone got suggestions on who i should even consider for this? I'm a bit dumbfounded myself as i'v never even thought about a server on this much sustained bandwidth before today.
We now have passed 60 days with 3dgwebhosting (3dgwebhosting.com) and what had started as a VPS only endeavor continues to expand based upon the incredible level of support and technical performance we are receiving.
If you would have asked me three months ago about 3dgwebhosting I would have been unable to respond...I did quite a bit of research when we decided to switch from a shared hosting offering with some large shared hosting providers to a VPS. I contacted close to a dozen providers and inquired regarding performance, packages, support, etc. and at the end of the day there was a level of comfort with 3DG that I did not have with the majority of other VPS Providers. Don't get me wrong...there were some shining stars in the bunch but something about 3dg (beyond the great pricing and flexibility) sold me on giving them a try.
Being a serial entrepreneur I have always been partial to working with smaller (at least those that felt smaller!) customer-centric firms for all of my support services from back office to technical. This was no exception. Performance is obviously critical in the technical space but I also view customer service and attentive vendors as critical factors in vendor selection.
Well the short of it is we have been on board with 3DG for over 60 days. Performance has been top notch and the level of customer support has been unmatched by any technical services provider I have used in the past. In addition, 3DG has become a strategic partner and has provided some great insight into how to globalize our technology and incorporate our clients’ needs into our technology platform (i.e. SharePoint). I truly did not expect to see this level of involvement on a consulting front and level of customization on a technology front from a hosting provider – a pleasant surprise! Kudos to David and the 3dg team. We have many sites on the VPS but our primary is glotegy.com.
If my business provides a level of service that is worthy of praise I always hope that my clients will speak their mind and help me spread the word about what I am trying to do. With that said I cannot recommend 3DG highly enough!
Since the inception of the VPS we have also put in place a dedicated server at 3DG that is running Office SharePoint Server and will be live with a hosted solution of Microsoft Dynamics 4.0 CRM with 3DG sometime next week.
Sorry for the long post but as you can probably tell I get pretty passionate about my business and those firms who help me with my global endeavors! To sum it up...finally...3DG is attentive, customer-centric, and a valued business partner.