nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

High cpu usage and extremely slow

vikhoho

Hi
I'm running alfresco community 4.2.e on a machine running Red Hat Enterprise Linux Server release 6.4.
It's a default alfresco setup apart from openjdk 1.7 instead of the one in the installer.
I am reading and writing documents form/to alfresco using apache chemistry OpenCMIS.
Everything seems to be working fine until I upload a document, because after that every attempt to retrieve a document takes >20 secs. Every read seems to get stuck on the db-call because a new postgresql process is started and eats lots of CPU and takes forever to finish.

Moreover have I also encountered the java-process running tomcat to for no obvious reason start using 150-200% cpu for hours straight (until I finally restart the service).

I have about 10 to 50 documents (images + thumbnail renditions) in my repo.

Any ideas?

/Viktor

Find more posts tagged with

Comments

eswbitto

Let's start with your hardware. Can you give details of what equipment you have Alfresco running on? You should have 4GB of RAM as a minimum. Does your HDD have a decent rpm? Raid Type? All that good stuff. CPU?

If you just have a vanilla install then I don't see how it would be using that much cpu at a time.

We have our install on a VM with 8GB of memory. The cpu never gets above 20-30% except on backups….So not sure where things are going for you.

vikhoho

It's a virtual machine running on ms hyper-v. Dual core xeon @ 2.3 ghz, 8gb ram. Not sure about hdd and raid specs though but it should be something decent.

vikhoho

I think I've found the troublemaker.
I have a script which is executed when a new image is uploaded which contains:
<javascript>
var rend = renditionService.createRenditionDefinition("cm:thumbnail", "imageRenderingEngine");

rend.parameters["resizeToThumbnail"] = true;
rend.parameters["xsize"] = 200;
rend.parameters["ysize"] = 200;
rend.parameters["maintainAspectRatio"] = true;

rend.execute(document);
</javascript>

This seem to kill the server, although it's running fine on my windows hosted alfresco.
Is there something wrong with my script?